Merge remote-tracking branch 'origin/main' into user/rcadene/2025_04_11_dataset_v3

This commit is contained in:
Remi Cadene
2025-04-21 11:03:12 +02:00
committed by Michel Aractingi
287 changed files with 31690 additions and 12428 deletions
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# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from functools import cache
import numpy as np
CAP_V4L2 = 200
CAP_DSHOW = 700
CAP_AVFOUNDATION = 1200
CAP_ANY = -1
CAP_PROP_FPS = 5
CAP_PROP_FRAME_WIDTH = 3
CAP_PROP_FRAME_HEIGHT = 4
COLOR_RGB2BGR = 4
COLOR_BGR2RGB = 4
ROTATE_90_COUNTERCLOCKWISE = 2
ROTATE_90_CLOCKWISE = 0
ROTATE_180 = 1
@cache
def _generate_image(width: int, height: int):
return np.random.randint(0, 256, size=(height, width, 3), dtype=np.uint8)
def cvtColor(color_image, color_conversion): # noqa: N802
if color_conversion in [COLOR_RGB2BGR, COLOR_BGR2RGB]:
return color_image[:, :, [2, 1, 0]]
else:
raise NotImplementedError(color_conversion)
def rotate(color_image, rotation):
if rotation is None:
return color_image
elif rotation == ROTATE_90_CLOCKWISE:
return np.rot90(color_image, k=1)
elif rotation == ROTATE_180:
return np.rot90(color_image, k=2)
elif rotation == ROTATE_90_COUNTERCLOCKWISE:
return np.rot90(color_image, k=3)
else:
raise NotImplementedError(rotation)
class VideoCapture:
def __init__(self, *args, **kwargs):
self._mock_dict = {
CAP_PROP_FPS: 30,
CAP_PROP_FRAME_WIDTH: 640,
CAP_PROP_FRAME_HEIGHT: 480,
}
self._is_opened = True
def isOpened(self): # noqa: N802
return self._is_opened
def set(self, propId: int, value: float) -> bool: # noqa: N803
if not self._is_opened:
raise RuntimeError("Camera is not opened")
self._mock_dict[propId] = value
return True
def get(self, propId: int) -> float: # noqa: N803
if not self._is_opened:
raise RuntimeError("Camera is not opened")
value = self._mock_dict[propId]
if value == 0:
if propId == CAP_PROP_FRAME_HEIGHT:
value = 480
elif propId == CAP_PROP_FRAME_WIDTH:
value = 640
return value
def read(self):
if not self._is_opened:
raise RuntimeError("Camera is not opened")
h = self.get(CAP_PROP_FRAME_HEIGHT)
w = self.get(CAP_PROP_FRAME_WIDTH)
ret = True
return ret, _generate_image(width=w, height=h)
def release(self):
self._is_opened = False
def __del__(self):
if self._is_opened:
self.release()
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# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import enum
import numpy as np
class stream(enum.Enum): # noqa: N801
color = 0
depth = 1
class format(enum.Enum): # noqa: N801
rgb8 = 0
z16 = 1
class config: # noqa: N801
def enable_device(self, device_id: str):
self.device_enabled = device_id
def enable_stream(self, stream_type: stream, width=None, height=None, color_format=None, fps=None):
self.stream_type = stream_type
# Overwrite default values when possible
self.width = 848 if width is None else width
self.height = 480 if height is None else height
self.color_format = format.rgb8 if color_format is None else color_format
self.fps = 30 if fps is None else fps
class RSColorProfile:
def __init__(self, config):
self.config = config
def fps(self):
return self.config.fps
def width(self):
return self.config.width
def height(self):
return self.config.height
class RSColorStream:
def __init__(self, config):
self.config = config
def as_video_stream_profile(self):
return RSColorProfile(self.config)
class RSProfile:
def __init__(self, config):
self.config = config
def get_stream(self, color_format):
del color_format # unused
return RSColorStream(self.config)
class pipeline: # noqa: N801
def __init__(self):
self.started = False
self.config = None
def start(self, config):
self.started = True
self.config = config
return RSProfile(self.config)
def stop(self):
if not self.started:
raise RuntimeError("You need to start the camera before stop.")
self.started = False
self.config = None
def wait_for_frames(self, timeout_ms=50000):
del timeout_ms # unused
return RSFrames(self.config)
class RSFrames:
def __init__(self, config):
self.config = config
def get_color_frame(self):
return RSColorFrame(self.config)
def get_depth_frame(self):
return RSDepthFrame(self.config)
class RSColorFrame:
def __init__(self, config):
self.config = config
def get_data(self):
data = np.ones((self.config.height, self.config.width, 3), dtype=np.uint8)
# Create a difference between rgb and bgr
data[:, :, 0] = 2
return data
class RSDepthFrame:
def __init__(self, config):
self.config = config
def get_data(self):
return np.ones((self.config.height, self.config.width), dtype=np.uint16)
class RSDevice:
def __init__(self):
pass
def get_info(self, camera_info) -> str:
del camera_info # unused
# return fake serial number
return "123456789"
class context: # noqa: N801
def __init__(self):
pass
def query_devices(self):
return [RSDevice()]
class camera_info: # noqa: N801
# fake name
name = "Intel RealSense D435I"
def __init__(self, serial_number):
del serial_number
pass
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# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Tests for physical cameras and their mocked versions.
If the physical camera is not connected to the computer, or not working,
the test will be skipped.
Example of running a specific test:
```bash
pytest -sx tests/test_cameras.py::test_camera
```
Example of running test on a real camera connected to the computer:
```bash
pytest -sx 'tests/test_cameras.py::test_camera[opencv-False]'
pytest -sx 'tests/test_cameras.py::test_camera[intelrealsense-False]'
```
Example of running test on a mocked version of the camera:
```bash
pytest -sx 'tests/test_cameras.py::test_camera[opencv-True]'
pytest -sx 'tests/test_cameras.py::test_camera[intelrealsense-True]'
```
"""
import numpy as np
import pytest
from lerobot.common.robot_devices.utils import RobotDeviceAlreadyConnectedError, RobotDeviceNotConnectedError
from tests.utils import TEST_CAMERA_TYPES, make_camera, require_camera
# Maximum absolute difference between two consecutive images recorded by a camera.
# This value differs with respect to the camera.
MAX_PIXEL_DIFFERENCE = 25
def compute_max_pixel_difference(first_image, second_image):
return np.abs(first_image.astype(float) - second_image.astype(float)).max()
@pytest.mark.parametrize("camera_type, mock", TEST_CAMERA_TYPES)
@require_camera
def test_camera(request, camera_type, mock):
"""Test assumes that `camera.read()` returns the same image when called multiple times in a row.
So the environment should not change (you shouldnt be in front of the camera) and the camera should not be moving.
Warning: The tests worked for a macbookpro camera, but I am getting assertion error (`np.allclose(color_image, async_color_image)`)
for my iphone camera and my LG monitor camera.
"""
# TODO(rcadene): measure fps in nightly?
# TODO(rcadene): test logs
if camera_type == "opencv" and not mock:
pytest.skip("TODO(rcadene): fix test for opencv physical camera")
camera_kwargs = {"camera_type": camera_type, "mock": mock}
# Test instantiating
camera = make_camera(**camera_kwargs)
# Test reading, async reading, disconnecting before connecting raises an error
with pytest.raises(RobotDeviceNotConnectedError):
camera.read()
with pytest.raises(RobotDeviceNotConnectedError):
camera.async_read()
with pytest.raises(RobotDeviceNotConnectedError):
camera.disconnect()
# Test deleting the object without connecting first
del camera
# Test connecting
camera = make_camera(**camera_kwargs)
camera.connect()
assert camera.is_connected
assert camera.fps is not None
assert camera.capture_width is not None
assert camera.capture_height is not None
# Test connecting twice raises an error
with pytest.raises(RobotDeviceAlreadyConnectedError):
camera.connect()
# Test reading from the camera
color_image = camera.read()
assert isinstance(color_image, np.ndarray)
assert color_image.ndim == 3
h, w, c = color_image.shape
assert c == 3
assert w > h
# Test read and async_read outputs similar images
# ...warming up as the first frames can be black
for _ in range(30):
camera.read()
color_image = camera.read()
async_color_image = camera.async_read()
error_msg = (
"max_pixel_difference between read() and async_read()",
compute_max_pixel_difference(color_image, async_color_image),
)
# TODO(rcadene): properly set `rtol`
np.testing.assert_allclose(
color_image, async_color_image, rtol=1e-5, atol=MAX_PIXEL_DIFFERENCE, err_msg=error_msg
)
# Test disconnecting
camera.disconnect()
assert camera.camera is None
assert camera.thread is None
# Test disconnecting with `__del__`
camera = make_camera(**camera_kwargs)
camera.connect()
del camera
# Test acquiring a bgr image
camera = make_camera(**camera_kwargs, color_mode="bgr")
camera.connect()
assert camera.color_mode == "bgr"
bgr_color_image = camera.read()
np.testing.assert_allclose(
color_image, bgr_color_image[:, :, [2, 1, 0]], rtol=1e-5, atol=MAX_PIXEL_DIFFERENCE, err_msg=error_msg
)
del camera
# Test acquiring a rotated image
camera = make_camera(**camera_kwargs)
camera.connect()
ori_color_image = camera.read()
del camera
for rotation in [None, 90, 180, -90]:
camera = make_camera(**camera_kwargs, rotation=rotation)
camera.connect()
if mock:
import tests.cameras.mock_cv2 as cv2
else:
import cv2
if rotation is None:
manual_rot_img = ori_color_image
assert camera.rotation is None
elif rotation == 90:
manual_rot_img = np.rot90(color_image, k=1)
assert camera.rotation == cv2.ROTATE_90_CLOCKWISE
elif rotation == 180:
manual_rot_img = np.rot90(color_image, k=2)
assert camera.rotation == cv2.ROTATE_180
elif rotation == -90:
manual_rot_img = np.rot90(color_image, k=3)
assert camera.rotation == cv2.ROTATE_90_COUNTERCLOCKWISE
rot_color_image = camera.read()
np.testing.assert_allclose(
rot_color_image, manual_rot_img, rtol=1e-5, atol=MAX_PIXEL_DIFFERENCE, err_msg=error_msg
)
del camera
# TODO(rcadene): Add a test for a camera that doesnt support fps=60 and raises an OSError
# TODO(rcadene): Add a test for a camera that supports fps=60
# Test width and height can be set
camera = make_camera(**camera_kwargs, fps=30, width=1280, height=720)
camera.connect()
assert camera.fps == 30
assert camera.width == 1280
assert camera.height == 720
color_image = camera.read()
h, w, c = color_image.shape
assert h == 720
assert w == 1280
assert c == 3
del camera
# Test not supported width and height raise an error
camera = make_camera(**camera_kwargs, fps=30, width=0, height=0)
with pytest.raises(OSError):
camera.connect()
del camera
@pytest.mark.parametrize("camera_type, mock", TEST_CAMERA_TYPES)
@require_camera
def test_save_images_from_cameras(tmp_path, request, camera_type, mock):
# TODO(rcadene): refactor
if camera_type == "opencv":
from lerobot.common.robot_devices.cameras.opencv import save_images_from_cameras
elif camera_type == "intelrealsense":
from lerobot.common.robot_devices.cameras.intelrealsense import save_images_from_cameras
# Small `record_time_s` to speedup unit tests
save_images_from_cameras(tmp_path, record_time_s=0.02, mock=mock)
@pytest.mark.parametrize("camera_type, mock", TEST_CAMERA_TYPES)
@require_camera
def test_camera_rotation(request, camera_type, mock):
config_kwargs = {"camera_type": camera_type, "mock": mock, "width": 640, "height": 480, "fps": 30}
# No rotation.
camera = make_camera(**config_kwargs, rotation=None)
camera.connect()
assert camera.capture_width == 640
assert camera.capture_height == 480
assert camera.width == 640
assert camera.height == 480
no_rot_img = camera.read()
h, w, c = no_rot_img.shape
assert h == 480 and w == 640 and c == 3
camera.disconnect()
# Rotation = 90 (clockwise).
camera = make_camera(**config_kwargs, rotation=90)
camera.connect()
# With a 90° rotation, we expect the metadata dimensions to be swapped.
assert camera.capture_width == 640
assert camera.capture_height == 480
assert camera.width == 480
assert camera.height == 640
import cv2
assert camera.rotation == cv2.ROTATE_90_CLOCKWISE
rot_img = camera.read()
h, w, c = rot_img.shape
assert h == 640 and w == 480 and c == 3
camera.disconnect()
# Rotation = 180.
camera = make_camera(**config_kwargs, rotation=None)
camera.connect()
assert camera.capture_width == 640
assert camera.capture_height == 480
assert camera.width == 640
assert camera.height == 480
no_rot_img = camera.read()
h, w, c = no_rot_img.shape
assert h == 480 and w == 640 and c == 3
camera.disconnect()
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#!/usr/bin/env python
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Example of running a specific test:
# ```bash
# pytest tests/cameras/test_opencv.py::test_connect
# ```
from pathlib import Path
import numpy as np
import pytest
from lerobot.common.cameras.configs import Cv2Rotation
from lerobot.common.cameras.opencv import OpenCVCamera, OpenCVCameraConfig
from lerobot.common.errors import DeviceAlreadyConnectedError, DeviceNotConnectedError
# NOTE(Steven): more tests + assertions?
TEST_ARTIFACTS_DIR = Path(__file__).parent.parent / "artifacts" / "cameras"
DEFAULT_PNG_FILE_PATH = TEST_ARTIFACTS_DIR / "image_160x120.png"
TEST_IMAGE_SIZES = ["128x128", "160x120", "320x180", "480x270"]
TEST_IMAGE_PATHS = [TEST_ARTIFACTS_DIR / f"image_{size}.png" for size in TEST_IMAGE_SIZES]
def test_abc_implementation():
"""Instantiation should raise an error if the class doesn't implement abstract methods/properties."""
config = OpenCVCameraConfig(index_or_path=0)
_ = OpenCVCamera(config)
def test_connect():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
assert camera.is_connected
def test_connect_already_connected():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
with pytest.raises(DeviceAlreadyConnectedError):
camera.connect(warmup=False)
def test_connect_invalid_camera_path():
config = OpenCVCameraConfig(index_or_path="nonexistent/camera.png")
camera = OpenCVCamera(config)
with pytest.raises(ConnectionError):
camera.connect(warmup=False)
def test_invalid_width_connect():
config = OpenCVCameraConfig(
index_or_path=DEFAULT_PNG_FILE_PATH,
width=99999, # Invalid width to trigger error
height=480,
)
camera = OpenCVCamera(config)
with pytest.raises(RuntimeError):
camera.connect(warmup=False)
@pytest.mark.parametrize("index_or_path", TEST_IMAGE_PATHS, ids=TEST_IMAGE_SIZES)
def test_read(index_or_path):
config = OpenCVCameraConfig(index_or_path=index_or_path)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
img = camera.read()
assert isinstance(img, np.ndarray)
def test_read_before_connect():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
with pytest.raises(DeviceNotConnectedError):
_ = camera.read()
def test_disconnect():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
camera.disconnect()
assert not camera.is_connected
def test_disconnect_before_connect():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
with pytest.raises(DeviceNotConnectedError):
_ = camera.disconnect()
@pytest.mark.parametrize("index_or_path", TEST_IMAGE_PATHS, ids=TEST_IMAGE_SIZES)
def test_async_read(index_or_path):
config = OpenCVCameraConfig(index_or_path=index_or_path)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
try:
img = camera.async_read()
assert camera.thread is not None
assert camera.thread.is_alive()
assert isinstance(img, np.ndarray)
finally:
if camera.is_connected:
camera.disconnect() # To stop/join the thread. Otherwise get warnings when the test ends
def test_async_read_timeout():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
try:
with pytest.raises(TimeoutError):
camera.async_read(timeout_ms=0)
finally:
if camera.is_connected:
camera.disconnect()
def test_async_read_before_connect():
config = OpenCVCameraConfig(index_or_path=DEFAULT_PNG_FILE_PATH)
camera = OpenCVCamera(config)
with pytest.raises(DeviceNotConnectedError):
_ = camera.async_read()
@pytest.mark.parametrize("index_or_path", TEST_IMAGE_PATHS, ids=TEST_IMAGE_SIZES)
@pytest.mark.parametrize(
"rotation",
[
Cv2Rotation.NO_ROTATION,
Cv2Rotation.ROTATE_90,
Cv2Rotation.ROTATE_180,
Cv2Rotation.ROTATE_270,
],
ids=["no_rot", "rot90", "rot180", "rot270"],
)
def test_rotation(rotation, index_or_path):
filename = Path(index_or_path).name
dimensions = filename.split("_")[-1].split(".")[0] # Assumes filenames format (_wxh.png)
original_width, original_height = map(int, dimensions.split("x"))
config = OpenCVCameraConfig(index_or_path=index_or_path, rotation=rotation)
camera = OpenCVCamera(config)
camera.connect(warmup=False)
img = camera.read()
assert isinstance(img, np.ndarray)
if rotation in (Cv2Rotation.ROTATE_90, Cv2Rotation.ROTATE_270):
assert camera.width == original_height
assert camera.height == original_width
assert img.shape[:2] == (original_width, original_height)
else:
assert camera.width == original_width
assert camera.height == original_height
assert img.shape[:2] == (original_height, original_width)
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#!/usr/bin/env python
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Example of running a specific test:
# ```bash
# pytest tests/cameras/test_opencv.py::test_connect
# ```
from pathlib import Path
from unittest.mock import patch
import numpy as np
import pytest
from lerobot.common.cameras.configs import Cv2Rotation
from lerobot.common.errors import DeviceAlreadyConnectedError, DeviceNotConnectedError
pytest.importorskip("pyrealsense2")
from lerobot.common.cameras.realsense import RealSenseCamera, RealSenseCameraConfig
TEST_ARTIFACTS_DIR = Path(__file__).parent.parent / "artifacts" / "cameras"
BAG_FILE_PATH = TEST_ARTIFACTS_DIR / "test_rs.bag"
# NOTE(Steven): For some reason these tests take ~20sec in macOS but only ~2sec in Linux.
def mock_rs_config_enable_device_from_file(rs_config_instance, _sn):
return rs_config_instance.enable_device_from_file(str(BAG_FILE_PATH), repeat_playback=True)
def mock_rs_config_enable_device_bad_file(rs_config_instance, _sn):
return rs_config_instance.enable_device_from_file("non_existent_file.bag", repeat_playback=True)
@pytest.fixture(name="patch_realsense", autouse=True)
def fixture_patch_realsense():
"""Automatically mock pyrealsense2.config.enable_device for all tests."""
with patch(
"pyrealsense2.config.enable_device", side_effect=mock_rs_config_enable_device_from_file
) as mock:
yield mock
def test_abc_implementation():
"""Instantiation should raise an error if the class doesn't implement abstract methods/properties."""
config = RealSenseCameraConfig(serial_number_or_name="042")
_ = RealSenseCamera(config)
def test_connect():
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
camera.connect(warmup=False)
assert camera.is_connected
def test_connect_already_connected():
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
camera.connect(warmup=False)
with pytest.raises(DeviceAlreadyConnectedError):
camera.connect(warmup=False)
def test_connect_invalid_camera_path(patch_realsense):
patch_realsense.side_effect = mock_rs_config_enable_device_bad_file
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
with pytest.raises(ConnectionError):
camera.connect(warmup=False)
def test_invalid_width_connect():
config = RealSenseCameraConfig(serial_number_or_name="042", width=99999, height=480, fps=30)
camera = RealSenseCamera(config)
with pytest.raises(ConnectionError):
camera.connect(warmup=False)
def test_read():
config = RealSenseCameraConfig(serial_number_or_name="042", width=640, height=480, fps=30)
camera = RealSenseCamera(config)
camera.connect(warmup=False)
img = camera.read()
assert isinstance(img, np.ndarray)
def test_read_depth():
config = RealSenseCameraConfig(serial_number_or_name="042", width=640, height=480, fps=30, use_depth=True)
camera = RealSenseCamera(config)
camera.connect(warmup=False)
img = camera.read_depth(timeout_ms=1000) # NOTE(Steven): Reading depth takes longer
assert isinstance(img, np.ndarray)
def test_read_before_connect():
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
with pytest.raises(DeviceNotConnectedError):
_ = camera.read()
def test_disconnect():
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
camera.connect(warmup=False)
camera.disconnect()
assert not camera.is_connected
def test_disconnect_before_connect():
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
with pytest.raises(DeviceNotConnectedError):
camera.disconnect()
def test_async_read():
config = RealSenseCameraConfig(serial_number_or_name="042", width=640, height=480, fps=30)
camera = RealSenseCamera(config)
camera.connect(warmup=False)
try:
img = camera.async_read()
assert camera.thread is not None
assert camera.thread.is_alive()
assert isinstance(img, np.ndarray)
finally:
if camera.is_connected:
camera.disconnect() # To stop/join the thread. Otherwise get warnings when the test ends
def test_async_read_timeout():
config = RealSenseCameraConfig(serial_number_or_name="042", width=640, height=480, fps=30)
camera = RealSenseCamera(config)
camera.connect(warmup=False)
try:
with pytest.raises(TimeoutError):
camera.async_read(timeout_ms=0)
finally:
if camera.is_connected:
camera.disconnect()
def test_async_read_before_connect():
config = RealSenseCameraConfig(serial_number_or_name="042")
camera = RealSenseCamera(config)
with pytest.raises(DeviceNotConnectedError):
_ = camera.async_read()
@pytest.mark.parametrize(
"rotation",
[
Cv2Rotation.NO_ROTATION,
Cv2Rotation.ROTATE_90,
Cv2Rotation.ROTATE_180,
Cv2Rotation.ROTATE_270,
],
ids=["no_rot", "rot90", "rot180", "rot270"],
)
def test_rotation(rotation):
config = RealSenseCameraConfig(serial_number_or_name="042", rotation=rotation)
camera = RealSenseCamera(config)
camera.connect(warmup=False)
img = camera.read()
assert isinstance(img, np.ndarray)
if rotation in (Cv2Rotation.ROTATE_90, Cv2Rotation.ROTATE_270):
assert camera.width == 480
assert camera.height == 640
assert img.shape[:2] == (640, 480)
else:
assert camera.width == 640
assert camera.height == 480
assert img.shape[:2] == (480, 640)
+8
View File
@@ -16,6 +16,7 @@
import pytest
import torch
from packaging import version
from safetensors.torch import load_file
from torchvision.transforms import v2
from torchvision.transforms.v2 import functional as F # noqa: N812
@@ -253,7 +254,14 @@ def test_backward_compatibility_single_transforms(
@require_x86_64_kernel
@pytest.mark.skipif(
version.parse(torch.__version__) < version.parse("2.7.0"),
reason="Test artifacts were generated with PyTorch >= 2.7.0 which has different multinomial behavior",
)
def test_backward_compatibility_default_config(img_tensor, default_transforms):
# NOTE: PyTorch versions have different randomness, it might break this test.
# See this PR: https://github.com/huggingface/lerobot/pull/1127.
cfg = ImageTransformsConfig(enable=True)
default_tf = ImageTransforms(cfg)
+580
View File
@@ -0,0 +1,580 @@
import abc
from typing import Callable
import dynamixel_sdk as dxl
import serial
from mock_serial.mock_serial import MockSerial
from lerobot.common.motors.dynamixel.dynamixel import _split_into_byte_chunks
from .mock_serial_patch import WaitableStub
# https://emanual.robotis.com/docs/en/dxl/crc/
DXL_CRC_TABLE = [
0x0000, 0x8005, 0x800F, 0x000A, 0x801B, 0x001E, 0x0014, 0x8011,
0x8033, 0x0036, 0x003C, 0x8039, 0x0028, 0x802D, 0x8027, 0x0022,
0x8063, 0x0066, 0x006C, 0x8069, 0x0078, 0x807D, 0x8077, 0x0072,
0x0050, 0x8055, 0x805F, 0x005A, 0x804B, 0x004E, 0x0044, 0x8041,
0x80C3, 0x00C6, 0x00CC, 0x80C9, 0x00D8, 0x80DD, 0x80D7, 0x00D2,
0x00F0, 0x80F5, 0x80FF, 0x00FA, 0x80EB, 0x00EE, 0x00E4, 0x80E1,
0x00A0, 0x80A5, 0x80AF, 0x00AA, 0x80BB, 0x00BE, 0x00B4, 0x80B1,
0x8093, 0x0096, 0x009C, 0x8099, 0x0088, 0x808D, 0x8087, 0x0082,
0x8183, 0x0186, 0x018C, 0x8189, 0x0198, 0x819D, 0x8197, 0x0192,
0x01B0, 0x81B5, 0x81BF, 0x01BA, 0x81AB, 0x01AE, 0x01A4, 0x81A1,
0x01E0, 0x81E5, 0x81EF, 0x01EA, 0x81FB, 0x01FE, 0x01F4, 0x81F1,
0x81D3, 0x01D6, 0x01DC, 0x81D9, 0x01C8, 0x81CD, 0x81C7, 0x01C2,
0x0140, 0x8145, 0x814F, 0x014A, 0x815B, 0x015E, 0x0154, 0x8151,
0x8173, 0x0176, 0x017C, 0x8179, 0x0168, 0x816D, 0x8167, 0x0162,
0x8123, 0x0126, 0x012C, 0x8129, 0x0138, 0x813D, 0x8137, 0x0132,
0x0110, 0x8115, 0x811F, 0x011A, 0x810B, 0x010E, 0x0104, 0x8101,
0x8303, 0x0306, 0x030C, 0x8309, 0x0318, 0x831D, 0x8317, 0x0312,
0x0330, 0x8335, 0x833F, 0x033A, 0x832B, 0x032E, 0x0324, 0x8321,
0x0360, 0x8365, 0x836F, 0x036A, 0x837B, 0x037E, 0x0374, 0x8371,
0x8353, 0x0356, 0x035C, 0x8359, 0x0348, 0x834D, 0x8347, 0x0342,
0x03C0, 0x83C5, 0x83CF, 0x03CA, 0x83DB, 0x03DE, 0x03D4, 0x83D1,
0x83F3, 0x03F6, 0x03FC, 0x83F9, 0x03E8, 0x83ED, 0x83E7, 0x03E2,
0x83A3, 0x03A6, 0x03AC, 0x83A9, 0x03B8, 0x83BD, 0x83B7, 0x03B2,
0x0390, 0x8395, 0x839F, 0x039A, 0x838B, 0x038E, 0x0384, 0x8381,
0x0280, 0x8285, 0x828F, 0x028A, 0x829B, 0x029E, 0x0294, 0x8291,
0x82B3, 0x02B6, 0x02BC, 0x82B9, 0x02A8, 0x82AD, 0x82A7, 0x02A2,
0x82E3, 0x02E6, 0x02EC, 0x82E9, 0x02F8, 0x82FD, 0x82F7, 0x02F2,
0x02D0, 0x82D5, 0x82DF, 0x02DA, 0x82CB, 0x02CE, 0x02C4, 0x82C1,
0x8243, 0x0246, 0x024C, 0x8249, 0x0258, 0x825D, 0x8257, 0x0252,
0x0270, 0x8275, 0x827F, 0x027A, 0x826B, 0x026E, 0x0264, 0x8261,
0x0220, 0x8225, 0x822F, 0x022A, 0x823B, 0x023E, 0x0234, 0x8231,
0x8213, 0x0216, 0x021C, 0x8219, 0x0208, 0x820D, 0x8207, 0x0202
] # fmt: skip
class MockDynamixelPacketv2(abc.ABC):
@classmethod
def build(cls, dxl_id: int, params: list[int], length: int, *args, **kwargs) -> bytes:
packet = cls._build(dxl_id, params, length, *args, **kwargs)
packet = cls._add_stuffing(packet)
packet = cls._add_crc(packet)
return bytes(packet)
@abc.abstractclassmethod
def _build(cls, dxl_id: int, params: list[int], length: int, *args, **kwargs) -> list[int]:
pass
@staticmethod
def _add_stuffing(packet: list[int]) -> list[int]:
"""
Byte stuffing is a method of adding additional data to generated instruction packets to ensure that
the packets are processed successfully. When the byte pattern "0xFF 0xFF 0xFD" appears in a packet,
byte stuffing adds 0xFD to the end of the pattern to convert it to “0xFF 0xFF 0xFD 0xFD” to ensure
that it is not interpreted as the header at the start of another packet.
Source: https://emanual.robotis.com/docs/en/dxl/protocol2/#transmission-process
Args:
packet (list[int]): The raw packet without stuffing.
Returns:
list[int]: The packet stuffed if it contained a "0xFF 0xFF 0xFD" byte sequence in its data bytes.
"""
packet_length_in = dxl.DXL_MAKEWORD(packet[dxl.PKT_LENGTH_L], packet[dxl.PKT_LENGTH_H])
packet_length_out = packet_length_in
temp = [0] * dxl.TXPACKET_MAX_LEN
# FF FF FD XX ID LEN_L LEN_H
temp[dxl.PKT_HEADER0 : dxl.PKT_HEADER0 + dxl.PKT_LENGTH_H + 1] = packet[
dxl.PKT_HEADER0 : dxl.PKT_HEADER0 + dxl.PKT_LENGTH_H + 1
]
index = dxl.PKT_INSTRUCTION
for i in range(0, packet_length_in - 2): # except CRC
temp[index] = packet[i + dxl.PKT_INSTRUCTION]
index = index + 1
if (
packet[i + dxl.PKT_INSTRUCTION] == 0xFD
and packet[i + dxl.PKT_INSTRUCTION - 1] == 0xFF
and packet[i + dxl.PKT_INSTRUCTION - 2] == 0xFF
):
# FF FF FD
temp[index] = 0xFD
index = index + 1
packet_length_out = packet_length_out + 1
temp[index] = packet[dxl.PKT_INSTRUCTION + packet_length_in - 2]
temp[index + 1] = packet[dxl.PKT_INSTRUCTION + packet_length_in - 1]
index = index + 2
if packet_length_in != packet_length_out:
packet = [0] * index
packet[0:index] = temp[0:index]
packet[dxl.PKT_LENGTH_L] = dxl.DXL_LOBYTE(packet_length_out)
packet[dxl.PKT_LENGTH_H] = dxl.DXL_HIBYTE(packet_length_out)
return packet
@staticmethod
def _add_crc(packet: list[int]) -> list[int]:
"""Computes and add CRC to the packet.
https://emanual.robotis.com/docs/en/dxl/crc/
https://en.wikipedia.org/wiki/Cyclic_redundancy_check
Args:
packet (list[int]): The raw packet without CRC (but with placeholders for it).
Returns:
list[int]: The raw packet with a valid CRC.
"""
crc = 0
for j in range(len(packet) - 2):
i = ((crc >> 8) ^ packet[j]) & 0xFF
crc = ((crc << 8) ^ DXL_CRC_TABLE[i]) & 0xFFFF
packet[-2] = dxl.DXL_LOBYTE(crc)
packet[-1] = dxl.DXL_HIBYTE(crc)
return packet
class MockInstructionPacket(MockDynamixelPacketv2):
"""
Helper class to build valid Dynamixel Protocol 2.0 Instruction Packets.
Protocol 2.0 Instruction Packet structure
https://emanual.robotis.com/docs/en/dxl/protocol2/#instruction-packet
| Header | Packet ID | Length | Instruction | Params | CRC |
| ------------------- | --------- | ----------- | ----------- | ----------------- | ----------- |
| 0xFF 0xFF 0xFD 0x00 | ID | Len_L Len_H | Instr | Param 1 … Param N | CRC_L CRC_H |
"""
@classmethod
def _build(cls, dxl_id: int, params: list[int], length: int, instruction: int) -> list[int]:
length = len(params) + 3
return [
0xFF, 0xFF, 0xFD, 0x00, # header
dxl_id, # servo id
dxl.DXL_LOBYTE(length), # length_l
dxl.DXL_HIBYTE(length), # length_h
instruction, # instruction type
*params, # data bytes
0x00, 0x00 # placeholder for CRC
] # fmt: skip
@classmethod
def ping(
cls,
dxl_id: int,
) -> bytes:
"""
Builds a "Ping" broadcast instruction.
https://emanual.robotis.com/docs/en/dxl/protocol2/#ping-0x01
No parameters required.
"""
return cls.build(dxl_id=dxl_id, params=[], length=3, instruction=dxl.INST_PING)
@classmethod
def read(
cls,
dxl_id: int,
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Read" instruction.
https://emanual.robotis.com/docs/en/dxl/protocol2/#read-0x02
The parameters for Read (Protocol 2.0) are:
param[0] = start_address L
param[1] = start_address H
param[2] = data_length L
param[3] = data_length H
And 'length' = data_length + 5, where:
+1 is for instruction byte,
+2 is for the length bytes,
+2 is for the CRC at the end.
"""
params = [
dxl.DXL_LOBYTE(start_address),
dxl.DXL_HIBYTE(start_address),
dxl.DXL_LOBYTE(data_length),
dxl.DXL_HIBYTE(data_length),
]
length = len(params) + 3
# length = data_length + 5
return cls.build(dxl_id=dxl_id, params=params, length=length, instruction=dxl.INST_READ)
@classmethod
def write(
cls,
dxl_id: int,
value: int,
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Write" instruction.
https://emanual.robotis.com/docs/en/dxl/protocol2/#write-0x03
The parameters for Write (Protocol 2.0) are:
param[0] = start_address L
param[1] = start_address H
param[2] = 1st Byte
param[3] = 2nd Byte
...
param[1+X] = X-th Byte
And 'length' = data_length + 5, where:
+1 is for instruction byte,
+2 is for the length bytes,
+2 is for the CRC at the end.
"""
data = _split_into_byte_chunks(value, data_length)
params = [
dxl.DXL_LOBYTE(start_address),
dxl.DXL_HIBYTE(start_address),
*data,
]
length = data_length + 5
return cls.build(dxl_id=dxl_id, params=params, length=length, instruction=dxl.INST_WRITE)
@classmethod
def sync_read(
cls,
dxl_ids: list[int],
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Sync_Read" broadcast instruction.
https://emanual.robotis.com/docs/en/dxl/protocol2/#sync-read-0x82
The parameters for Sync_Read (Protocol 2.0) are:
param[0] = start_address L
param[1] = start_address H
param[2] = data_length L
param[3] = data_length H
param[4+] = motor IDs to read from
And 'length' = (number_of_params + 7), where:
+1 is for instruction byte,
+2 is for the address bytes,
+2 is for the length bytes,
+2 is for the CRC at the end.
"""
params = [
dxl.DXL_LOBYTE(start_address),
dxl.DXL_HIBYTE(start_address),
dxl.DXL_LOBYTE(data_length),
dxl.DXL_HIBYTE(data_length),
*dxl_ids,
]
length = len(dxl_ids) + 7
return cls.build(
dxl_id=dxl.BROADCAST_ID, params=params, length=length, instruction=dxl.INST_SYNC_READ
)
@classmethod
def sync_write(
cls,
ids_values: dict[int, int],
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Sync_Write" broadcast instruction.
https://emanual.robotis.com/docs/en/dxl/protocol2/#sync-write-0x83
The parameters for Sync_Write (Protocol 2.0) are:
param[0] = start_address L
param[1] = start_address H
param[2] = data_length L
param[3] = data_length H
param[5] = [1st motor] ID
param[5+1] = [1st motor] 1st Byte
param[5+2] = [1st motor] 2nd Byte
...
param[5+X] = [1st motor] X-th Byte
param[6] = [2nd motor] ID
param[6+1] = [2nd motor] 1st Byte
param[6+2] = [2nd motor] 2nd Byte
...
param[6+X] = [2nd motor] X-th Byte
And 'length' = ((number_of_params * 1 + data_length) + 7), where:
+1 is for instruction byte,
+2 is for the address bytes,
+2 is for the length bytes,
+2 is for the CRC at the end.
"""
data = []
for id_, value in ids_values.items():
split_value = _split_into_byte_chunks(value, data_length)
data += [id_, *split_value]
params = [
dxl.DXL_LOBYTE(start_address),
dxl.DXL_HIBYTE(start_address),
dxl.DXL_LOBYTE(data_length),
dxl.DXL_HIBYTE(data_length),
*data,
]
length = len(ids_values) * (1 + data_length) + 7
return cls.build(
dxl_id=dxl.BROADCAST_ID, params=params, length=length, instruction=dxl.INST_SYNC_WRITE
)
class MockStatusPacket(MockDynamixelPacketv2):
"""
Helper class to build valid Dynamixel Protocol 2.0 Status Packets.
Protocol 2.0 Status Packet structure
https://emanual.robotis.com/docs/en/dxl/protocol2/#status-packet
| Header | Packet ID | Length | Instruction | Error | Params | CRC |
| ------------------- | --------- | ----------- | ----------- | ----- | ----------------- | ----------- |
| 0xFF 0xFF 0xFD 0x00 | ID | Len_L Len_H | 0x55 | Err | Param 1 … Param N | CRC_L CRC_H |
"""
@classmethod
def _build(cls, dxl_id: int, params: list[int], length: int, error: int = 0) -> list[int]:
return [
0xFF, 0xFF, 0xFD, 0x00, # header
dxl_id, # servo id
dxl.DXL_LOBYTE(length), # length_l
dxl.DXL_HIBYTE(length), # length_h
0x55, # instruction = 'status'
error, # error
*params, # data bytes
0x00, 0x00 # placeholder for CRC
] # fmt: skip
@classmethod
def ping(cls, dxl_id: int, model_nb: int = 1190, firm_ver: int = 50, error: int = 0) -> bytes:
"""
Builds a 'Ping' status packet.
https://emanual.robotis.com/docs/en/dxl/protocol2/#ping-0x01
Args:
dxl_id (int): ID of the servo responding.
model_nb (int, optional): Desired 'model number' to be returned in the packet. Defaults to 1190
which corresponds to a XL330-M077-T.
firm_ver (int, optional): Desired 'firmware version' to be returned in the packet.
Defaults to 50.
Returns:
bytes: The raw 'Ping' status packet ready to be sent through serial.
"""
params = [dxl.DXL_LOBYTE(model_nb), dxl.DXL_HIBYTE(model_nb), firm_ver]
length = 7
return cls.build(dxl_id, params=params, length=length, error=error)
@classmethod
def read(cls, dxl_id: int, value: int, param_length: int, error: int = 0) -> bytes:
"""
Builds a 'Read' status packet (also works for 'Sync Read')
https://emanual.robotis.com/docs/en/dxl/protocol2/#read-0x02
https://emanual.robotis.com/docs/en/dxl/protocol2/#sync-read-0x82
Args:
dxl_id (int): ID of the servo responding.
value (int): Desired value to be returned in the packet.
param_length (int): The address length as reported in the control table.
Returns:
bytes: The raw 'Present_Position' status packet ready to be sent through serial.
"""
params = _split_into_byte_chunks(value, param_length)
length = param_length + 4
return cls.build(dxl_id, params=params, length=length, error=error)
class MockPortHandler(dxl.PortHandler):
"""
This class overwrite the 'setupPort' method of the Dynamixel PortHandler because it can specify
baudrates that are not supported with a serial port on MacOS.
"""
def setupPort(self, cflag_baud): # noqa: N802
if self.is_open:
self.closePort()
self.ser = serial.Serial(
port=self.port_name,
# baudrate=self.baudrate, <- This will fail on MacOS
# parity = serial.PARITY_ODD,
# stopbits = serial.STOPBITS_TWO,
bytesize=serial.EIGHTBITS,
timeout=0,
)
self.is_open = True
self.ser.reset_input_buffer()
self.tx_time_per_byte = (1000.0 / self.baudrate) * 10.0
return True
class MockMotors(MockSerial):
"""
This class will simulate physical motors by responding with valid status packets upon receiving some
instruction packets. It is meant to test MotorsBus classes.
"""
def __init__(self):
super().__init__()
@property
def stubs(self) -> dict[str, WaitableStub]:
return super().stubs
def stub(self, *, name=None, **kwargs):
new_stub = WaitableStub(**kwargs)
self._MockSerial__stubs[name or new_stub.receive_bytes] = new_stub
return new_stub
def build_broadcast_ping_stub(
self, ids_models: dict[int, list[int]] | None = None, num_invalid_try: int = 0
) -> str:
ping_request = MockInstructionPacket.ping(dxl.BROADCAST_ID)
return_packets = b"".join(MockStatusPacket.ping(id_, model) for id_, model in ids_models.items())
ping_response = self._build_send_fn(return_packets, num_invalid_try)
stub_name = "Ping_" + "_".join([str(id_) for id_ in ids_models])
self.stub(
name=stub_name,
receive_bytes=ping_request,
send_fn=ping_response,
)
return stub_name
def build_ping_stub(
self, dxl_id: int, model_nb: int, firm_ver: int = 50, num_invalid_try: int = 0, error: int = 0
) -> str:
ping_request = MockInstructionPacket.ping(dxl_id)
return_packet = MockStatusPacket.ping(dxl_id, model_nb, firm_ver, error)
ping_response = self._build_send_fn(return_packet, num_invalid_try)
stub_name = f"Ping_{dxl_id}"
self.stub(
name=stub_name,
receive_bytes=ping_request,
send_fn=ping_response,
)
return stub_name
def build_read_stub(
self,
address: int,
length: int,
dxl_id: int,
value: int,
reply: bool = True,
error: int = 0,
num_invalid_try: int = 0,
) -> str:
read_request = MockInstructionPacket.read(dxl_id, address, length)
return_packet = MockStatusPacket.read(dxl_id, value, length, error) if reply else b""
read_response = self._build_send_fn(return_packet, num_invalid_try)
stub_name = f"Read_{address}_{length}_{dxl_id}_{value}_{error}"
self.stub(
name=stub_name,
receive_bytes=read_request,
send_fn=read_response,
)
return stub_name
def build_write_stub(
self,
address: int,
length: int,
dxl_id: int,
value: int,
reply: bool = True,
error: int = 0,
num_invalid_try: int = 0,
) -> str:
sync_read_request = MockInstructionPacket.write(dxl_id, value, address, length)
return_packet = MockStatusPacket.build(dxl_id, params=[], length=4, error=error) if reply else b""
stub_name = f"Write_{address}_{length}_{dxl_id}"
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=self._build_send_fn(return_packet, num_invalid_try),
)
return stub_name
def build_sync_read_stub(
self,
address: int,
length: int,
ids_values: dict[int, int],
reply: bool = True,
num_invalid_try: int = 0,
) -> str:
sync_read_request = MockInstructionPacket.sync_read(list(ids_values), address, length)
return_packets = (
b"".join(MockStatusPacket.read(id_, pos, length) for id_, pos in ids_values.items())
if reply
else b""
)
sync_read_response = self._build_send_fn(return_packets, num_invalid_try)
stub_name = f"Sync_Read_{address}_{length}_" + "_".join([str(id_) for id_ in ids_values])
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=sync_read_response,
)
return stub_name
def build_sequential_sync_read_stub(
self, address: int, length: int, ids_values: dict[int, list[int]] | None = None
) -> str:
sequence_length = len(next(iter(ids_values.values())))
assert all(len(positions) == sequence_length for positions in ids_values.values())
sync_read_request = MockInstructionPacket.sync_read(list(ids_values), address, length)
sequential_packets = []
for count in range(sequence_length):
return_packets = b"".join(
MockStatusPacket.read(id_, positions[count], length) for id_, positions in ids_values.items()
)
sequential_packets.append(return_packets)
sync_read_response = self._build_sequential_send_fn(sequential_packets)
stub_name = f"Seq_Sync_Read_{address}_{length}_" + "_".join([str(id_) for id_ in ids_values])
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=sync_read_response,
)
return stub_name
def build_sync_write_stub(
self, address: int, length: int, ids_values: dict[int, int], num_invalid_try: int = 0
) -> str:
sync_read_request = MockInstructionPacket.sync_write(ids_values, address, length)
stub_name = f"Sync_Write_{address}_{length}_" + "_".join([str(id_) for id_ in ids_values])
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=self._build_send_fn(b"", num_invalid_try),
)
return stub_name
@staticmethod
def _build_send_fn(packet: bytes, num_invalid_try: int = 0) -> Callable[[int], bytes]:
def send_fn(_call_count: int) -> bytes:
if num_invalid_try >= _call_count:
return b""
return packet
return send_fn
@staticmethod
def _build_sequential_send_fn(packets: list[bytes]) -> Callable[[int], bytes]:
def send_fn(_call_count: int) -> bytes:
return packets[_call_count - 1]
return send_fn
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import abc
from typing import Callable
import scservo_sdk as scs
import serial
from mock_serial import MockSerial
from lerobot.common.motors.feetech.feetech import _split_into_byte_chunks, patch_setPacketTimeout
from .mock_serial_patch import WaitableStub
class MockFeetechPacket(abc.ABC):
@classmethod
def build(cls, scs_id: int, params: list[int], length: int, *args, **kwargs) -> bytes:
packet = cls._build(scs_id, params, length, *args, **kwargs)
packet = cls._add_checksum(packet)
return bytes(packet)
@abc.abstractclassmethod
def _build(cls, scs_id: int, params: list[int], length: int, *args, **kwargs) -> list[int]:
pass
@staticmethod
def _add_checksum(packet: list[int]) -> list[int]:
checksum = 0
for id_ in range(2, len(packet) - 1): # except header & checksum
checksum += packet[id_]
packet[-1] = ~checksum & 0xFF
return packet
class MockInstructionPacket(MockFeetechPacket):
"""
Helper class to build valid Feetech Instruction Packets.
Instruction Packet structure
(from https://files.waveshare.com/upload/2/27/Communication_Protocol_User_Manual-EN%28191218-0923%29.pdf)
| Header | Packet ID | Length | Instruction | Params | Checksum |
| --------- | --------- | ------ | ----------- | ----------------- | -------- |
| 0xFF 0xFF | ID | Len | Instr | Param 1 … Param N | Sum |
"""
@classmethod
def _build(cls, scs_id: int, params: list[int], length: int, instruction: int) -> list[int]:
return [
0xFF, 0xFF, # header
scs_id, # servo id
length, # length
instruction, # instruction type
*params, # data bytes
0x00, # placeholder for checksum
] # fmt: skip
@classmethod
def ping(
cls,
scs_id: int,
) -> bytes:
"""
Builds a "Ping" broadcast instruction.
No parameters required.
"""
return cls.build(scs_id=scs_id, params=[], length=2, instruction=scs.INST_PING)
@classmethod
def read(
cls,
scs_id: int,
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Read" instruction.
The parameters for Read are:
param[0] = start_address
param[1] = data_length
And 'length' = 4, where:
+1 is for instruction byte,
+1 is for the address byte,
+1 is for the length bytes,
+1 is for the checksum at the end.
"""
params = [start_address, data_length]
length = 4
return cls.build(scs_id=scs_id, params=params, length=length, instruction=scs.INST_READ)
@classmethod
def write(
cls,
scs_id: int,
value: int,
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Write" instruction.
The parameters for Write are:
param[0] = start_address L
param[1] = start_address H
param[2] = 1st Byte
param[3] = 2nd Byte
...
param[1+X] = X-th Byte
And 'length' = data_length + 3, where:
+1 is for instruction byte,
+1 is for the length bytes,
+1 is for the checksum at the end.
"""
data = _split_into_byte_chunks(value, data_length)
params = [start_address, *data]
length = data_length + 3
return cls.build(scs_id=scs_id, params=params, length=length, instruction=scs.INST_WRITE)
@classmethod
def sync_read(
cls,
scs_ids: list[int],
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Sync_Read" broadcast instruction.
The parameters for Sync Read are:
param[0] = start_address
param[1] = data_length
param[2+] = motor IDs to read from
And 'length' = (number_of_params + 4), where:
+1 is for instruction byte,
+1 is for the address byte,
+1 is for the length bytes,
+1 is for the checksum at the end.
"""
params = [start_address, data_length, *scs_ids]
length = len(scs_ids) + 4
return cls.build(
scs_id=scs.BROADCAST_ID, params=params, length=length, instruction=scs.INST_SYNC_READ
)
@classmethod
def sync_write(
cls,
ids_values: dict[int, int],
start_address: int,
data_length: int,
) -> bytes:
"""
Builds a "Sync_Write" broadcast instruction.
The parameters for Sync_Write are:
param[0] = start_address
param[1] = data_length
param[2] = [1st motor] ID
param[2+1] = [1st motor] 1st Byte
param[2+2] = [1st motor] 2nd Byte
...
param[5+X] = [1st motor] X-th Byte
param[6] = [2nd motor] ID
param[6+1] = [2nd motor] 1st Byte
param[6+2] = [2nd motor] 2nd Byte
...
param[6+X] = [2nd motor] X-th Byte
And 'length' = ((number_of_params * 1 + data_length) + 4), where:
+1 is for instruction byte,
+1 is for the address byte,
+1 is for the length bytes,
+1 is for the checksum at the end.
"""
data = []
for id_, value in ids_values.items():
split_value = _split_into_byte_chunks(value, data_length)
data += [id_, *split_value]
params = [start_address, data_length, *data]
length = len(ids_values) * (1 + data_length) + 4
return cls.build(
scs_id=scs.BROADCAST_ID, params=params, length=length, instruction=scs.INST_SYNC_WRITE
)
class MockStatusPacket(MockFeetechPacket):
"""
Helper class to build valid Feetech Status Packets.
Status Packet structure
(from https://files.waveshare.com/upload/2/27/Communication_Protocol_User_Manual-EN%28191218-0923%29.pdf)
| Header | Packet ID | Length | Error | Params | Checksum |
| --------- | --------- | ------ | ----- | ----------------- | -------- |
| 0xFF 0xFF | ID | Len | Err | Param 1 … Param N | Sum |
"""
@classmethod
def _build(cls, scs_id: int, params: list[int], length: int, error: int = 0) -> list[int]:
return [
0xFF, 0xFF, # header
scs_id, # servo id
length, # length
error, # status
*params, # data bytes
0x00, # placeholder for checksum
] # fmt: skip
@classmethod
def ping(cls, scs_id: int, error: int = 0) -> bytes:
"""Builds a 'Ping' status packet.
Args:
scs_id (int): ID of the servo responding.
error (int, optional): Error to be returned. Defaults to 0 (success).
Returns:
bytes: The raw 'Ping' status packet ready to be sent through serial.
"""
return cls.build(scs_id, params=[], length=2, error=error)
@classmethod
def read(cls, scs_id: int, value: int, param_length: int, error: int = 0) -> bytes:
"""Builds a 'Read' status packet.
Args:
scs_id (int): ID of the servo responding.
value (int): Desired value to be returned in the packet.
param_length (int): The address length as reported in the control table.
Returns:
bytes: The raw 'Sync Read' status packet ready to be sent through serial.
"""
params = _split_into_byte_chunks(value, param_length)
length = param_length + 2
return cls.build(scs_id, params=params, length=length, error=error)
class MockPortHandler(scs.PortHandler):
"""
This class overwrite the 'setupPort' method of the Feetech PortHandler because it can specify
baudrates that are not supported with a serial port on MacOS.
"""
def setupPort(self, cflag_baud): # noqa: N802
if self.is_open:
self.closePort()
self.ser = serial.Serial(
port=self.port_name,
# baudrate=self.baudrate, <- This will fail on MacOS
# parity = serial.PARITY_ODD,
# stopbits = serial.STOPBITS_TWO,
bytesize=serial.EIGHTBITS,
timeout=0,
)
self.is_open = True
self.ser.reset_input_buffer()
self.tx_time_per_byte = (1000.0 / self.baudrate) * 10.0
return True
def setPacketTimeout(self, packet_length): # noqa: N802
return patch_setPacketTimeout(self, packet_length)
class MockMotors(MockSerial):
"""
This class will simulate physical motors by responding with valid status packets upon receiving some
instruction packets. It is meant to test MotorsBus classes.
"""
def __init__(self):
super().__init__()
@property
def stubs(self) -> dict[str, WaitableStub]:
return super().stubs
def stub(self, *, name=None, **kwargs):
new_stub = WaitableStub(**kwargs)
self._MockSerial__stubs[name or new_stub.receive_bytes] = new_stub
return new_stub
def build_broadcast_ping_stub(self, ids: list[int] | None = None, num_invalid_try: int = 0) -> str:
ping_request = MockInstructionPacket.ping(scs.BROADCAST_ID)
return_packets = b"".join(MockStatusPacket.ping(id_) for id_ in ids)
ping_response = self._build_send_fn(return_packets, num_invalid_try)
stub_name = "Ping_" + "_".join([str(id_) for id_ in ids])
self.stub(
name=stub_name,
receive_bytes=ping_request,
send_fn=ping_response,
)
return stub_name
def build_ping_stub(self, scs_id: int, num_invalid_try: int = 0, error: int = 0) -> str:
ping_request = MockInstructionPacket.ping(scs_id)
return_packet = MockStatusPacket.ping(scs_id, error)
ping_response = self._build_send_fn(return_packet, num_invalid_try)
stub_name = f"Ping_{scs_id}_{error}"
self.stub(
name=stub_name,
receive_bytes=ping_request,
send_fn=ping_response,
)
return stub_name
def build_read_stub(
self,
address: int,
length: int,
scs_id: int,
value: int,
reply: bool = True,
error: int = 0,
num_invalid_try: int = 0,
) -> str:
read_request = MockInstructionPacket.read(scs_id, address, length)
return_packet = MockStatusPacket.read(scs_id, value, length, error) if reply else b""
read_response = self._build_send_fn(return_packet, num_invalid_try)
stub_name = f"Read_{address}_{length}_{scs_id}_{value}_{error}"
self.stub(
name=stub_name,
receive_bytes=read_request,
send_fn=read_response,
)
return stub_name
def build_write_stub(
self,
address: int,
length: int,
scs_id: int,
value: int,
reply: bool = True,
error: int = 0,
num_invalid_try: int = 0,
) -> str:
sync_read_request = MockInstructionPacket.write(scs_id, value, address, length)
return_packet = MockStatusPacket.build(scs_id, params=[], length=2, error=error) if reply else b""
stub_name = f"Write_{address}_{length}_{scs_id}"
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=self._build_send_fn(return_packet, num_invalid_try),
)
return stub_name
def build_sync_read_stub(
self,
address: int,
length: int,
ids_values: dict[int, int],
reply: bool = True,
num_invalid_try: int = 0,
) -> str:
sync_read_request = MockInstructionPacket.sync_read(list(ids_values), address, length)
return_packets = (
b"".join(MockStatusPacket.read(id_, pos, length) for id_, pos in ids_values.items())
if reply
else b""
)
sync_read_response = self._build_send_fn(return_packets, num_invalid_try)
stub_name = f"Sync_Read_{address}_{length}_" + "_".join([str(id_) for id_ in ids_values])
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=sync_read_response,
)
return stub_name
def build_sequential_sync_read_stub(
self, address: int, length: int, ids_values: dict[int, list[int]] | None = None
) -> str:
sequence_length = len(next(iter(ids_values.values())))
assert all(len(positions) == sequence_length for positions in ids_values.values())
sync_read_request = MockInstructionPacket.sync_read(list(ids_values), address, length)
sequential_packets = []
for count in range(sequence_length):
return_packets = b"".join(
MockStatusPacket.read(id_, positions[count], length) for id_, positions in ids_values.items()
)
sequential_packets.append(return_packets)
sync_read_response = self._build_sequential_send_fn(sequential_packets)
stub_name = f"Seq_Sync_Read_{address}_{length}_" + "_".join([str(id_) for id_ in ids_values])
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=sync_read_response,
)
return stub_name
def build_sync_write_stub(
self, address: int, length: int, ids_values: dict[int, int], num_invalid_try: int = 0
) -> str:
sync_read_request = MockInstructionPacket.sync_write(ids_values, address, length)
stub_name = f"Sync_Write_{address}_{length}_" + "_".join([str(id_) for id_ in ids_values])
self.stub(
name=stub_name,
receive_bytes=sync_read_request,
send_fn=self._build_send_fn(b"", num_invalid_try),
)
return stub_name
@staticmethod
def _build_send_fn(packet: bytes, num_invalid_try: int = 0) -> Callable[[int], bytes]:
def send_fn(_call_count: int) -> bytes:
if num_invalid_try >= _call_count:
return b""
return packet
return send_fn
@staticmethod
def _build_sequential_send_fn(packets: list[bytes]) -> Callable[[int], bytes]:
def send_fn(_call_count: int) -> bytes:
return packets[_call_count - 1]
return send_fn
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# ruff: noqa: N802
from lerobot.common.motors.motors_bus import (
Motor,
MotorsBus,
)
DUMMY_CTRL_TABLE_1 = {
"Firmware_Version": (0, 1),
"Model_Number": (1, 2),
"Present_Position": (3, 4),
"Goal_Position": (11, 2),
}
DUMMY_CTRL_TABLE_2 = {
"Model_Number": (0, 2),
"Firmware_Version": (2, 1),
"Present_Position": (3, 4),
"Present_Velocity": (7, 4),
"Goal_Position": (11, 4),
"Goal_Velocity": (15, 4),
"Lock": (19, 1),
}
DUMMY_MODEL_CTRL_TABLE = {
"model_1": DUMMY_CTRL_TABLE_1,
"model_2": DUMMY_CTRL_TABLE_2,
"model_3": DUMMY_CTRL_TABLE_2,
}
DUMMY_BAUDRATE_TABLE = {
0: 1_000_000,
1: 500_000,
2: 250_000,
}
DUMMY_MODEL_BAUDRATE_TABLE = {
"model_1": DUMMY_BAUDRATE_TABLE,
"model_2": DUMMY_BAUDRATE_TABLE,
"model_3": DUMMY_BAUDRATE_TABLE,
}
DUMMY_ENCODING_TABLE = {
"Present_Position": 8,
"Goal_Position": 10,
}
DUMMY_MODEL_ENCODING_TABLE = {
"model_1": DUMMY_ENCODING_TABLE,
"model_2": DUMMY_ENCODING_TABLE,
"model_3": DUMMY_ENCODING_TABLE,
}
DUMMY_MODEL_NUMBER_TABLE = {
"model_1": 1234,
"model_2": 5678,
"model_3": 5799,
}
DUMMY_MODEL_RESOLUTION_TABLE = {
"model_1": 4096,
"model_2": 1024,
"model_3": 4096,
}
class MockPortHandler:
def __init__(self, port_name):
self.is_open: bool = False
self.baudrate: int
self.packet_start_time: float
self.packet_timeout: float
self.tx_time_per_byte: float
self.is_using: bool = False
self.port_name: str = port_name
self.ser = None
def openPort(self):
self.is_open = True
return self.is_open
def closePort(self):
self.is_open = False
def clearPort(self): ...
def setPortName(self, port_name):
self.port_name = port_name
def getPortName(self):
return self.port_name
def setBaudRate(self, baudrate):
self.baudrate: baudrate
def getBaudRate(self):
return self.baudrate
def getBytesAvailable(self): ...
def readPort(self, length): ...
def writePort(self, packet): ...
def setPacketTimeout(self, packet_length): ...
def setPacketTimeoutMillis(self, msec): ...
def isPacketTimeout(self): ...
def getCurrentTime(self): ...
def getTimeSinceStart(self): ...
def setupPort(self, cflag_baud): ...
def getCFlagBaud(self, baudrate): ...
class MockMotorsBus(MotorsBus):
available_baudrates = [500_000, 1_000_000]
default_timeout = 1000
model_baudrate_table = DUMMY_MODEL_BAUDRATE_TABLE
model_ctrl_table = DUMMY_MODEL_CTRL_TABLE
model_encoding_table = DUMMY_MODEL_ENCODING_TABLE
model_number_table = DUMMY_MODEL_NUMBER_TABLE
model_resolution_table = DUMMY_MODEL_RESOLUTION_TABLE
normalized_data = ["Present_Position", "Goal_Position"]
def __init__(self, port: str, motors: dict[str, Motor]):
super().__init__(port, motors)
self.port_handler = MockPortHandler(port)
def _assert_protocol_is_compatible(self, instruction_name): ...
def _handshake(self): ...
def _find_single_motor(self, motor, initial_baudrate): ...
def configure_motors(self): ...
def is_calibrated(self): ...
def read_calibration(self): ...
def write_calibration(self, calibration_dict): ...
def disable_torque(self, motors, num_retry): ...
def _disable_torque(self, motor, model, num_retry): ...
def enable_torque(self, motors, num_retry): ...
def _get_half_turn_homings(self, positions): ...
def _encode_sign(self, data_name, ids_values): ...
def _decode_sign(self, data_name, ids_values): ...
def _split_into_byte_chunks(self, value, length): ...
def broadcast_ping(self, num_retry, raise_on_error): ...
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import random
from dataclasses import dataclass, field
from functools import cached_property
from typing import Any
from lerobot.common.cameras import CameraConfig, make_cameras_from_configs
from lerobot.common.errors import DeviceAlreadyConnectedError, DeviceNotConnectedError
from lerobot.common.robots import Robot, RobotConfig
@RobotConfig.register_subclass("mock_robot")
@dataclass
class MockRobotConfig(RobotConfig):
n_motors: int = 3
cameras: dict[str, CameraConfig] = field(default_factory=dict)
random_values: bool = True
static_values: list[float] | None = None
calibrated: bool = True
def __post_init__(self):
if self.n_motors < 1:
raise ValueError(self.n_motors)
if self.random_values and self.static_values is not None:
raise ValueError("Choose either random values or static values")
if self.static_values is not None and len(self.static_values) != self.n_motors:
raise ValueError("Specify the same number of static values as motors")
if len(self.cameras) > 0:
raise NotImplementedError # TODO with the cameras refactor
class MockRobot(Robot):
"""Mock Robot to be used for testing."""
config_class = MockRobotConfig
name = "mock_robot"
def __init__(self, config: MockRobotConfig):
super().__init__(config)
self.config = config
self._is_connected = False
self._is_calibrated = config.calibrated
self.motors = [f"motor_{i + 1}" for i in range(config.n_motors)]
self.cameras = make_cameras_from_configs(config.cameras)
@property
def _motors_ft(self) -> dict[str, type]:
return {f"{motor}.pos": float for motor in self.motors}
@property
def _cameras_ft(self) -> dict[str, tuple]:
return {
cam: (self.config.cameras[cam].height, self.config.cameras[cam].width, 3) for cam in self.cameras
}
@cached_property
def observation_features(self) -> dict[str, type | tuple]:
return {**self._motors_ft, **self._cameras_ft}
@cached_property
def action_features(self) -> dict[str, type]:
return self._motors_ft
@property
def is_connected(self) -> bool:
return self._is_connected
def connect(self, calibrate: bool = True) -> None:
if self.is_connected:
raise DeviceAlreadyConnectedError(f"{self} already connected")
self._is_connected = True
if calibrate:
self.calibrate()
@property
def is_calibrated(self) -> bool:
return self._is_calibrated
def calibrate(self) -> None:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
self._is_calibrated = True
def configure(self) -> None:
pass
def get_observation(self) -> dict[str, Any]:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
if self.config.random_values:
return {f"{motor}.pos": random.uniform(-100, 100) for motor in self.motors}
else:
return {
f"{motor}.pos": val for motor, val in zip(self.motors, self.config.static_values, strict=True)
}
def send_action(self, action: dict[str, Any]) -> dict[str, Any]:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
return action
def disconnect(self) -> None:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
self._is_connected = False
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import threading
import time
from mock_serial.mock_serial import Stub
class WaitableStub(Stub):
"""
In some situations, a test might be checking if a stub has been called before `MockSerial` thread had time
to read, match, and call the stub. In these situations, the test can fail randomly.
Use `wait_called()` or `wait_calls()` to block until the stub is called, avoiding race conditions.
Proposed fix:
https://github.com/benthorner/mock_serial/pull/3
"""
def __init__(self, **kwargs):
super().__init__(**kwargs)
self._event = threading.Event()
def call(self):
self._event.set()
return super().call()
def wait_called(self, timeout: float = 1.0):
return self._event.wait(timeout)
def wait_calls(self, min_calls: int = 1, timeout: float = 1.0):
start = time.perf_counter()
while time.perf_counter() - start < timeout:
if self.calls >= min_calls:
return self.calls
time.sleep(0.005)
raise TimeoutError(f"Stub not called {min_calls} times within {timeout} seconds.")
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import random
from dataclasses import dataclass
from functools import cached_property
from typing import Any
from lerobot.common.errors import DeviceAlreadyConnectedError, DeviceNotConnectedError
from lerobot.common.teleoperators import Teleoperator, TeleoperatorConfig
@TeleoperatorConfig.register_subclass("mock_teleop")
@dataclass
class MockTeleopConfig(TeleoperatorConfig):
n_motors: int = 3
random_values: bool = True
static_values: list[float] | None = None
calibrated: bool = True
def __post_init__(self):
if self.n_motors < 1:
raise ValueError(self.n_motors)
if self.random_values and self.static_values is not None:
raise ValueError("Choose either random values or static values")
if self.static_values is not None and len(self.static_values) != self.n_motors:
raise ValueError("Specify the same number of static values as motors")
class MockTeleop(Teleoperator):
"""Mock Teleoperator to be used for testing."""
config_class = MockTeleopConfig
name = "mock_teleop"
def __init__(self, config: MockTeleopConfig):
super().__init__(config)
self.config = config
self._is_connected = False
self._is_calibrated = config.calibrated
self.motors = [f"motor_{i + 1}" for i in range(config.n_motors)]
@cached_property
def action_features(self) -> dict[str, type]:
return {f"{motor}.pos": float for motor in self.motors}
@cached_property
def feedback_features(self) -> dict[str, type]:
return {f"{motor}.pos": float for motor in self.motors}
@property
def is_connected(self) -> bool:
return self._is_connected
def connect(self, calibrate: bool = True) -> None:
if self.is_connected:
raise DeviceAlreadyConnectedError(f"{self} already connected")
self._is_connected = True
if calibrate:
self.calibrate()
@property
def is_calibrated(self) -> bool:
return self._is_calibrated
def calibrate(self) -> None:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
self._is_calibrated = True
def configure(self) -> None:
pass
def get_action(self) -> dict[str, Any]:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
if self.config.random_values:
return {f"{motor}.pos": random.uniform(-100, 100) for motor in self.motors}
else:
return {
f"{motor}.pos": val for motor, val in zip(self.motors, self.config.static_values, strict=True)
}
def send_feedback(self, feedback: dict[str, Any]) -> None:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
def disconnect(self) -> None:
if not self.is_connected:
raise DeviceNotConnectedError(f"{self} is not connected.")
self._is_connected = False
-107
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@@ -1,107 +0,0 @@
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Mocked classes and functions from dynamixel_sdk to allow for continuous integration
and testing code logic that requires hardware and devices (e.g. robot arms, cameras)
Warning: These mocked versions are minimalist. They do not exactly mock every behaviors
from the original classes and functions (e.g. return types might be None instead of boolean).
"""
# from dynamixel_sdk import COMM_SUCCESS
DEFAULT_BAUDRATE = 9_600
COMM_SUCCESS = 0 # tx or rx packet communication success
def convert_to_bytes(value, bytes):
# TODO(rcadene): remove need to mock `convert_to_bytes` by implemented the inverse transform
# `convert_bytes_to_value`
del bytes # unused
return value
def get_default_motor_values(motor_index):
return {
# Key (int) are from X_SERIES_CONTROL_TABLE
7: motor_index, # ID
8: DEFAULT_BAUDRATE, # Baud_rate
10: 0, # Drive_Mode
64: 0, # Torque_Enable
# Set 2560 since calibration values for Aloha gripper is between start_pos=2499 and end_pos=3144
# For other joints, 2560 will be autocorrected to be in calibration range
132: 2560, # Present_Position
}
class PortHandler:
def __init__(self, port):
self.port = port
# factory default baudrate
self.baudrate = DEFAULT_BAUDRATE
def openPort(self): # noqa: N802
return True
def closePort(self): # noqa: N802
pass
def setPacketTimeoutMillis(self, timeout_ms): # noqa: N802
del timeout_ms # unused
def getBaudRate(self): # noqa: N802
return self.baudrate
def setBaudRate(self, baudrate): # noqa: N802
self.baudrate = baudrate
class PacketHandler:
def __init__(self, protocol_version):
del protocol_version # unused
# Use packet_handler.data to communicate across Read and Write
self.data = {}
class GroupSyncRead:
def __init__(self, port_handler, packet_handler, address, bytes):
self.packet_handler = packet_handler
def addParam(self, motor_index): # noqa: N802
# Initialize motor default values
if motor_index not in self.packet_handler.data:
self.packet_handler.data[motor_index] = get_default_motor_values(motor_index)
def txRxPacket(self): # noqa: N802
return COMM_SUCCESS
def getData(self, index, address, bytes): # noqa: N802
return self.packet_handler.data[index][address]
class GroupSyncWrite:
def __init__(self, port_handler, packet_handler, address, bytes):
self.packet_handler = packet_handler
self.address = address
def addParam(self, index, data): # noqa: N802
# Initialize motor default values
if index not in self.packet_handler.data:
self.packet_handler.data[index] = get_default_motor_values(index)
self.changeParam(index, data)
def txPacket(self): # noqa: N802
return COMM_SUCCESS
def changeParam(self, index, data): # noqa: N802
self.packet_handler.data[index][self.address] = data
-125
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@@ -1,125 +0,0 @@
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Mocked classes and functions from dynamixel_sdk to allow for continuous integration
and testing code logic that requires hardware and devices (e.g. robot arms, cameras)
Warning: These mocked versions are minimalist. They do not exactly mock every behaviors
from the original classes and functions (e.g. return types might be None instead of boolean).
"""
# from dynamixel_sdk import COMM_SUCCESS
DEFAULT_BAUDRATE = 1_000_000
COMM_SUCCESS = 0 # tx or rx packet communication success
def convert_to_bytes(value, bytes):
# TODO(rcadene): remove need to mock `convert_to_bytes` by implemented the inverse transform
# `convert_bytes_to_value`
del bytes # unused
return value
def get_default_motor_values(motor_index):
return {
# Key (int) are from SCS_SERIES_CONTROL_TABLE
5: motor_index, # ID
6: DEFAULT_BAUDRATE, # Baud_rate
10: 0, # Drive_Mode
21: 32, # P_Coefficient
22: 32, # D_Coefficient
23: 0, # I_Coefficient
40: 0, # Torque_Enable
41: 254, # Acceleration
31: -2047, # Offset
33: 0, # Mode
55: 1, # Lock
# Set 2560 since calibration values for Aloha gripper is between start_pos=2499 and end_pos=3144
# For other joints, 2560 will be autocorrected to be in calibration range
56: 2560, # Present_Position
58: 0, # Present_Speed
69: 0, # Present_Current
85: 150, # Maximum_Acceleration
}
class PortHandler:
def __init__(self, port):
self.port = port
# factory default baudrate
self.baudrate = DEFAULT_BAUDRATE
self.ser = SerialMock()
def openPort(self): # noqa: N802
return True
def closePort(self): # noqa: N802
pass
def setPacketTimeoutMillis(self, timeout_ms): # noqa: N802
del timeout_ms # unused
def getBaudRate(self): # noqa: N802
return self.baudrate
def setBaudRate(self, baudrate): # noqa: N802
self.baudrate = baudrate
class PacketHandler:
def __init__(self, protocol_version):
del protocol_version # unused
# Use packet_handler.data to communicate across Read and Write
self.data = {}
class GroupSyncRead:
def __init__(self, port_handler, packet_handler, address, bytes):
self.packet_handler = packet_handler
def addParam(self, motor_index): # noqa: N802
# Initialize motor default values
if motor_index not in self.packet_handler.data:
self.packet_handler.data[motor_index] = get_default_motor_values(motor_index)
def txRxPacket(self): # noqa: N802
return COMM_SUCCESS
def getData(self, index, address, bytes): # noqa: N802
return self.packet_handler.data[index][address]
class GroupSyncWrite:
def __init__(self, port_handler, packet_handler, address, bytes):
self.packet_handler = packet_handler
self.address = address
def addParam(self, index, data): # noqa: N802
if index not in self.packet_handler.data:
self.packet_handler.data[index] = get_default_motor_values(index)
self.changeParam(index, data)
def txPacket(self): # noqa: N802
return COMM_SUCCESS
def changeParam(self, index, data): # noqa: N802
self.packet_handler.data[index][self.address] = data
class SerialMock:
def reset_output_buffer(self):
pass
def reset_input_buffer(self):
pass
+400
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@@ -0,0 +1,400 @@
import re
import sys
from typing import Generator
from unittest.mock import MagicMock, patch
import pytest
from lerobot.common.motors import Motor, MotorCalibration, MotorNormMode
from lerobot.common.motors.dynamixel import MODEL_NUMBER_TABLE, DynamixelMotorsBus
from lerobot.common.motors.dynamixel.tables import X_SERIES_CONTROL_TABLE
from lerobot.common.utils.encoding_utils import encode_twos_complement
try:
import dynamixel_sdk as dxl
from tests.mocks.mock_dynamixel import MockMotors, MockPortHandler
except (ImportError, ModuleNotFoundError):
pytest.skip("dynamixel_sdk not available", allow_module_level=True)
@pytest.fixture(autouse=True)
def patch_port_handler():
if sys.platform == "darwin":
with patch.object(dxl, "PortHandler", MockPortHandler):
yield
else:
yield
@pytest.fixture
def mock_motors() -> Generator[MockMotors, None, None]:
motors = MockMotors()
motors.open()
yield motors
motors.close()
@pytest.fixture
def dummy_motors() -> dict[str, Motor]:
return {
"dummy_1": Motor(1, "xl430-w250", MotorNormMode.RANGE_M100_100),
"dummy_2": Motor(2, "xm540-w270", MotorNormMode.RANGE_M100_100),
"dummy_3": Motor(3, "xl330-m077", MotorNormMode.RANGE_M100_100),
}
@pytest.fixture
def dummy_calibration(dummy_motors) -> dict[str, MotorCalibration]:
drive_modes = [0, 1, 0]
homings = [-709, -2006, 1624]
mins = [43, 27, 145]
maxes = [1335, 3608, 3999]
calibration = {}
for motor, m in dummy_motors.items():
calibration[motor] = MotorCalibration(
id=m.id,
drive_mode=drive_modes[m.id - 1],
homing_offset=homings[m.id - 1],
range_min=mins[m.id - 1],
range_max=maxes[m.id - 1],
)
return calibration
@pytest.mark.skipif(sys.platform != "darwin", reason=f"No patching needed on {sys.platform=}")
def test_autouse_patch():
"""Ensures that the autouse fixture correctly patches dxl.PortHandler with MockPortHandler."""
assert dxl.PortHandler is MockPortHandler
@pytest.mark.parametrize(
"value, length, expected",
[
(0x12, 1, [0x12]),
(0x1234, 2, [0x34, 0x12]),
(0x12345678, 4, [0x78, 0x56, 0x34, 0x12]),
],
ids=[
"1 byte",
"2 bytes",
"4 bytes",
],
) # fmt: skip
def test__split_into_byte_chunks(value, length, expected):
bus = DynamixelMotorsBus("", {})
assert bus._split_into_byte_chunks(value, length) == expected
def test_abc_implementation(dummy_motors):
"""Instantiation should raise an error if the class doesn't implement abstract methods/properties."""
DynamixelMotorsBus(port="/dev/dummy-port", motors=dummy_motors)
@pytest.mark.parametrize("id_", [1, 2, 3])
def test_ping(id_, mock_motors, dummy_motors):
expected_model_nb = MODEL_NUMBER_TABLE[dummy_motors[f"dummy_{id_}"].model]
stub = mock_motors.build_ping_stub(id_, expected_model_nb)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
ping_model_nb = bus.ping(id_)
assert ping_model_nb == expected_model_nb
assert mock_motors.stubs[stub].called
def test_broadcast_ping(mock_motors, dummy_motors):
models = {m.id: m.model for m in dummy_motors.values()}
expected_model_nbs = {id_: MODEL_NUMBER_TABLE[model] for id_, model in models.items()}
stub = mock_motors.build_broadcast_ping_stub(expected_model_nbs)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
ping_model_nbs = bus.broadcast_ping()
assert ping_model_nbs == expected_model_nbs
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, id_, value",
[
(0, 1, 1, 2),
(10, 2, 2, 999),
(42, 4, 3, 1337),
],
)
def test__read(addr, length, id_, value, mock_motors, dummy_motors):
stub = mock_motors.build_read_stub(addr, length, id_, value)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
read_value, _, _ = bus._read(addr, length, id_)
assert mock_motors.stubs[stub].called
assert read_value == value
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__read_error(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value, error = (10, 4, 1, 1337, dxl.ERRNUM_DATA_LIMIT)
stub = mock_motors.build_read_stub(addr, length, id_, value, error=error)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(
RuntimeError, match=re.escape("[RxPacketError] The data value exceeds the limit value!")
):
bus._read(addr, length, id_, raise_on_error=raise_on_error)
else:
_, _, read_error = bus._read(addr, length, id_, raise_on_error=raise_on_error)
assert read_error == error
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__read_comm(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value = (10, 4, 1, 1337)
stub = mock_motors.build_read_stub(addr, length, id_, value, reply=False)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(ConnectionError, match=re.escape("[TxRxResult] There is no status packet!")):
bus._read(addr, length, id_, raise_on_error=raise_on_error)
else:
_, read_comm, _ = bus._read(addr, length, id_, raise_on_error=raise_on_error)
assert read_comm == dxl.COMM_RX_TIMEOUT
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, id_, value",
[
(0, 1, 1, 2),
(10, 2, 2, 999),
(42, 4, 3, 1337),
],
)
def test__write(addr, length, id_, value, mock_motors, dummy_motors):
stub = mock_motors.build_write_stub(addr, length, id_, value)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
comm, error = bus._write(addr, length, id_, value)
assert mock_motors.stubs[stub].called
assert comm == dxl.COMM_SUCCESS
assert error == 0
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__write_error(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value, error = (10, 4, 1, 1337, dxl.ERRNUM_DATA_LIMIT)
stub = mock_motors.build_write_stub(addr, length, id_, value, error=error)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(
RuntimeError, match=re.escape("[RxPacketError] The data value exceeds the limit value!")
):
bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
else:
_, write_error = bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
assert write_error == error
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__write_comm(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value = (10, 4, 1, 1337)
stub = mock_motors.build_write_stub(addr, length, id_, value, reply=False)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(ConnectionError, match=re.escape("[TxRxResult] There is no status packet!")):
bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
else:
write_comm, _ = bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
assert write_comm == dxl.COMM_RX_TIMEOUT
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, ids_values",
[
(0, 1, {1: 4}),
(10, 2, {1: 1337, 2: 42}),
(42, 4, {1: 1337, 2: 42, 3: 4016}),
],
ids=["1 motor", "2 motors", "3 motors"],
)
def test__sync_read(addr, length, ids_values, mock_motors, dummy_motors):
stub = mock_motors.build_sync_read_stub(addr, length, ids_values)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
read_values, _ = bus._sync_read(addr, length, list(ids_values))
assert mock_motors.stubs[stub].called
assert read_values == ids_values
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__sync_read_comm(raise_on_error, mock_motors, dummy_motors):
addr, length, ids_values = (10, 4, {1: 1337})
stub = mock_motors.build_sync_read_stub(addr, length, ids_values, reply=False)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(ConnectionError, match=re.escape("[TxRxResult] There is no status packet!")):
bus._sync_read(addr, length, list(ids_values), raise_on_error=raise_on_error)
else:
_, read_comm = bus._sync_read(addr, length, list(ids_values), raise_on_error=raise_on_error)
assert read_comm == dxl.COMM_RX_TIMEOUT
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, ids_values",
[
(0, 1, {1: 4}),
(10, 2, {1: 1337, 2: 42}),
(42, 4, {1: 1337, 2: 42, 3: 4016}),
],
ids=["1 motor", "2 motors", "3 motors"],
)
def test__sync_write(addr, length, ids_values, mock_motors, dummy_motors):
stub = mock_motors.build_sync_write_stub(addr, length, ids_values)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
comm = bus._sync_write(addr, length, ids_values)
assert mock_motors.stubs[stub].wait_called()
assert comm == dxl.COMM_SUCCESS
def test_is_calibrated(mock_motors, dummy_motors, dummy_calibration):
drive_modes = {m.id: m.drive_mode for m in dummy_calibration.values()}
encoded_homings = {m.id: encode_twos_complement(m.homing_offset, 4) for m in dummy_calibration.values()}
mins = {m.id: m.range_min for m in dummy_calibration.values()}
maxes = {m.id: m.range_max for m in dummy_calibration.values()}
drive_modes_stub = mock_motors.build_sync_read_stub(*X_SERIES_CONTROL_TABLE["Drive_Mode"], drive_modes)
offsets_stub = mock_motors.build_sync_read_stub(*X_SERIES_CONTROL_TABLE["Homing_Offset"], encoded_homings)
mins_stub = mock_motors.build_sync_read_stub(*X_SERIES_CONTROL_TABLE["Min_Position_Limit"], mins)
maxes_stub = mock_motors.build_sync_read_stub(*X_SERIES_CONTROL_TABLE["Max_Position_Limit"], maxes)
bus = DynamixelMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
calibration=dummy_calibration,
)
bus.connect(handshake=False)
is_calibrated = bus.is_calibrated
assert is_calibrated
assert mock_motors.stubs[drive_modes_stub].called
assert mock_motors.stubs[offsets_stub].called
assert mock_motors.stubs[mins_stub].called
assert mock_motors.stubs[maxes_stub].called
def test_reset_calibration(mock_motors, dummy_motors):
write_homing_stubs = []
write_mins_stubs = []
write_maxes_stubs = []
for motor in dummy_motors.values():
write_homing_stubs.append(
mock_motors.build_write_stub(*X_SERIES_CONTROL_TABLE["Homing_Offset"], motor.id, 0)
)
write_mins_stubs.append(
mock_motors.build_write_stub(*X_SERIES_CONTROL_TABLE["Min_Position_Limit"], motor.id, 0)
)
write_maxes_stubs.append(
mock_motors.build_write_stub(*X_SERIES_CONTROL_TABLE["Max_Position_Limit"], motor.id, 4095)
)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
bus.reset_calibration()
assert all(mock_motors.stubs[stub].called for stub in write_homing_stubs)
assert all(mock_motors.stubs[stub].called for stub in write_mins_stubs)
assert all(mock_motors.stubs[stub].called for stub in write_maxes_stubs)
def test_set_half_turn_homings(mock_motors, dummy_motors):
"""
For this test, we assume that the homing offsets are already 0 such that
Present_Position == Actual_Position
"""
current_positions = {
1: 1337,
2: 42,
3: 3672,
}
expected_homings = {
1: 710, # 2047 - 1337
2: 2005, # 2047 - 42
3: -1625, # 2047 - 3672
}
read_pos_stub = mock_motors.build_sync_read_stub(
*X_SERIES_CONTROL_TABLE["Present_Position"], current_positions
)
write_homing_stubs = []
for id_, homing in expected_homings.items():
encoded_homing = encode_twos_complement(homing, 4)
stub = mock_motors.build_write_stub(*X_SERIES_CONTROL_TABLE["Homing_Offset"], id_, encoded_homing)
write_homing_stubs.append(stub)
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
bus.reset_calibration = MagicMock()
bus.set_half_turn_homings()
bus.reset_calibration.assert_called_once()
assert mock_motors.stubs[read_pos_stub].called
assert all(mock_motors.stubs[stub].called for stub in write_homing_stubs)
def test_record_ranges_of_motion(mock_motors, dummy_motors):
positions = {
1: [351, 42, 1337],
2: [28, 3600, 2444],
3: [4002, 2999, 146],
}
expected_mins = {
"dummy_1": 42,
"dummy_2": 28,
"dummy_3": 146,
}
expected_maxes = {
"dummy_1": 1337,
"dummy_2": 3600,
"dummy_3": 4002,
}
read_pos_stub = mock_motors.build_sequential_sync_read_stub(
*X_SERIES_CONTROL_TABLE["Present_Position"], positions
)
with patch("lerobot.common.motors.motors_bus.enter_pressed", side_effect=[False, True]):
bus = DynamixelMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
mins, maxes = bus.record_ranges_of_motion(display_values=False)
assert mock_motors.stubs[read_pos_stub].calls == 3
assert mins == expected_mins
assert maxes == expected_maxes
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@@ -0,0 +1,443 @@
import re
import sys
from typing import Generator
from unittest.mock import MagicMock, patch
import pytest
from lerobot.common.motors import Motor, MotorCalibration, MotorNormMode
from lerobot.common.motors.feetech import MODEL_NUMBER, MODEL_NUMBER_TABLE, FeetechMotorsBus
from lerobot.common.motors.feetech.tables import STS_SMS_SERIES_CONTROL_TABLE
from lerobot.common.utils.encoding_utils import encode_sign_magnitude
try:
import scservo_sdk as scs
from tests.mocks.mock_feetech import MockMotors, MockPortHandler
except (ImportError, ModuleNotFoundError):
pytest.skip("scservo_sdk not available", allow_module_level=True)
@pytest.fixture(autouse=True)
def patch_port_handler():
if sys.platform == "darwin":
with patch.object(scs, "PortHandler", MockPortHandler):
yield
else:
yield
@pytest.fixture
def mock_motors() -> Generator[MockMotors, None, None]:
motors = MockMotors()
motors.open()
yield motors
motors.close()
@pytest.fixture
def dummy_motors() -> dict[str, Motor]:
return {
"dummy_1": Motor(1, "sts3215", MotorNormMode.RANGE_M100_100),
"dummy_2": Motor(2, "sts3215", MotorNormMode.RANGE_M100_100),
"dummy_3": Motor(3, "sts3215", MotorNormMode.RANGE_M100_100),
}
@pytest.fixture
def dummy_calibration(dummy_motors) -> dict[str, MotorCalibration]:
homings = [-709, -2006, 1624]
mins = [43, 27, 145]
maxes = [1335, 3608, 3999]
calibration = {}
for motor, m in dummy_motors.items():
calibration[motor] = MotorCalibration(
id=m.id,
drive_mode=0,
homing_offset=homings[m.id - 1],
range_min=mins[m.id - 1],
range_max=maxes[m.id - 1],
)
return calibration
@pytest.mark.skipif(sys.platform != "darwin", reason=f"No patching needed on {sys.platform=}")
def test_autouse_patch():
"""Ensures that the autouse fixture correctly patches scs.PortHandler with MockPortHandler."""
assert scs.PortHandler is MockPortHandler
@pytest.mark.parametrize(
"protocol, value, length, expected",
[
(0, 0x12, 1, [0x12]),
(1, 0x12, 1, [0x12]),
(0, 0x1234, 2, [0x34, 0x12]),
(1, 0x1234, 2, [0x12, 0x34]),
(0, 0x12345678, 4, [0x78, 0x56, 0x34, 0x12]),
(1, 0x12345678, 4, [0x56, 0x78, 0x12, 0x34]),
],
ids=[
"P0: 1 byte",
"P1: 1 byte",
"P0: 2 bytes",
"P1: 2 bytes",
"P0: 4 bytes",
"P1: 4 bytes",
],
) # fmt: skip
def test__split_into_byte_chunks(protocol, value, length, expected):
bus = FeetechMotorsBus("", {}, protocol_version=protocol)
assert bus._split_into_byte_chunks(value, length) == expected
def test_abc_implementation(dummy_motors):
"""Instantiation should raise an error if the class doesn't implement abstract methods/properties."""
FeetechMotorsBus(port="/dev/dummy-port", motors=dummy_motors)
@pytest.mark.parametrize("id_", [1, 2, 3])
def test_ping(id_, mock_motors, dummy_motors):
expected_model_nb = MODEL_NUMBER_TABLE[dummy_motors[f"dummy_{id_}"].model]
addr, length = MODEL_NUMBER
ping_stub = mock_motors.build_ping_stub(id_)
mobel_nb_stub = mock_motors.build_read_stub(addr, length, id_, expected_model_nb)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
)
bus.connect(handshake=False)
ping_model_nb = bus.ping(id_)
assert ping_model_nb == expected_model_nb
assert mock_motors.stubs[ping_stub].called
assert mock_motors.stubs[mobel_nb_stub].called
def test_broadcast_ping(mock_motors, dummy_motors):
models = {m.id: m.model for m in dummy_motors.values()}
addr, length = MODEL_NUMBER
ping_stub = mock_motors.build_broadcast_ping_stub(list(models))
mobel_nb_stubs = []
expected_model_nbs = {}
for id_, model in models.items():
model_nb = MODEL_NUMBER_TABLE[model]
stub = mock_motors.build_read_stub(addr, length, id_, model_nb)
expected_model_nbs[id_] = model_nb
mobel_nb_stubs.append(stub)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
)
bus.connect(handshake=False)
ping_model_nbs = bus.broadcast_ping()
assert ping_model_nbs == expected_model_nbs
assert mock_motors.stubs[ping_stub].called
assert all(mock_motors.stubs[stub].called for stub in mobel_nb_stubs)
@pytest.mark.parametrize(
"addr, length, id_, value",
[
(0, 1, 1, 2),
(10, 2, 2, 999),
(42, 4, 3, 1337),
],
)
def test__read(addr, length, id_, value, mock_motors, dummy_motors):
stub = mock_motors.build_read_stub(addr, length, id_, value)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
)
bus.connect(handshake=False)
read_value, _, _ = bus._read(addr, length, id_)
assert mock_motors.stubs[stub].called
assert read_value == value
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__read_error(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value, error = (10, 4, 1, 1337, scs.ERRBIT_VOLTAGE)
stub = mock_motors.build_read_stub(addr, length, id_, value, error=error)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(RuntimeError, match=re.escape("[RxPacketError] Input voltage error!")):
bus._read(addr, length, id_, raise_on_error=raise_on_error)
else:
_, _, read_error = bus._read(addr, length, id_, raise_on_error=raise_on_error)
assert read_error == error
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__read_comm(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value = (10, 4, 1, 1337)
stub = mock_motors.build_read_stub(addr, length, id_, value, reply=False)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(ConnectionError, match=re.escape("[TxRxResult] There is no status packet!")):
bus._read(addr, length, id_, raise_on_error=raise_on_error)
else:
_, read_comm, _ = bus._read(addr, length, id_, raise_on_error=raise_on_error)
assert read_comm == scs.COMM_RX_TIMEOUT
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, id_, value",
[
(0, 1, 1, 2),
(10, 2, 2, 999),
(42, 4, 3, 1337),
],
)
def test__write(addr, length, id_, value, mock_motors, dummy_motors):
stub = mock_motors.build_write_stub(addr, length, id_, value)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
)
bus.connect(handshake=False)
comm, error = bus._write(addr, length, id_, value)
assert mock_motors.stubs[stub].called
assert comm == scs.COMM_SUCCESS
assert error == 0
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__write_error(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value, error = (10, 4, 1, 1337, scs.ERRBIT_VOLTAGE)
stub = mock_motors.build_write_stub(addr, length, id_, value, error=error)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(RuntimeError, match=re.escape("[RxPacketError] Input voltage error!")):
bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
else:
_, write_error = bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
assert write_error == error
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__write_comm(raise_on_error, mock_motors, dummy_motors):
addr, length, id_, value = (10, 4, 1, 1337)
stub = mock_motors.build_write_stub(addr, length, id_, value, reply=False)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(ConnectionError, match=re.escape("[TxRxResult] There is no status packet!")):
bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
else:
write_comm, _ = bus._write(addr, length, id_, value, raise_on_error=raise_on_error)
assert write_comm == scs.COMM_RX_TIMEOUT
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, ids_values",
[
(0, 1, {1: 4}),
(10, 2, {1: 1337, 2: 42}),
(42, 4, {1: 1337, 2: 42, 3: 4016}),
],
ids=["1 motor", "2 motors", "3 motors"],
)
def test__sync_read(addr, length, ids_values, mock_motors, dummy_motors):
stub = mock_motors.build_sync_read_stub(addr, length, ids_values)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
read_values, _ = bus._sync_read(addr, length, list(ids_values))
assert mock_motors.stubs[stub].called
assert read_values == ids_values
@pytest.mark.parametrize("raise_on_error", (True, False))
def test__sync_read_comm(raise_on_error, mock_motors, dummy_motors):
addr, length, ids_values = (10, 4, {1: 1337})
stub = mock_motors.build_sync_read_stub(addr, length, ids_values, reply=False)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
if raise_on_error:
with pytest.raises(ConnectionError, match=re.escape("[TxRxResult] There is no status packet!")):
bus._sync_read(addr, length, list(ids_values), raise_on_error=raise_on_error)
else:
_, read_comm = bus._sync_read(addr, length, list(ids_values), raise_on_error=raise_on_error)
assert read_comm == scs.COMM_RX_TIMEOUT
assert mock_motors.stubs[stub].called
@pytest.mark.parametrize(
"addr, length, ids_values",
[
(0, 1, {1: 4}),
(10, 2, {1: 1337, 2: 42}),
(42, 4, {1: 1337, 2: 42, 3: 4016}),
],
ids=["1 motor", "2 motors", "3 motors"],
)
def test__sync_write(addr, length, ids_values, mock_motors, dummy_motors):
stub = mock_motors.build_sync_write_stub(addr, length, ids_values)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
comm = bus._sync_write(addr, length, ids_values)
assert mock_motors.stubs[stub].wait_called()
assert comm == scs.COMM_SUCCESS
def test_is_calibrated(mock_motors, dummy_motors, dummy_calibration):
mins_stubs, maxes_stubs, homings_stubs = [], [], []
for cal in dummy_calibration.values():
mins_stubs.append(
mock_motors.build_read_stub(
*STS_SMS_SERIES_CONTROL_TABLE["Min_Position_Limit"], cal.id, cal.range_min
)
)
maxes_stubs.append(
mock_motors.build_read_stub(
*STS_SMS_SERIES_CONTROL_TABLE["Max_Position_Limit"], cal.id, cal.range_max
)
)
homings_stubs.append(
mock_motors.build_read_stub(
*STS_SMS_SERIES_CONTROL_TABLE["Homing_Offset"],
cal.id,
encode_sign_magnitude(cal.homing_offset, 11),
)
)
bus = FeetechMotorsBus(
port=mock_motors.port,
motors=dummy_motors,
calibration=dummy_calibration,
)
bus.connect(handshake=False)
is_calibrated = bus.is_calibrated
assert is_calibrated
assert all(mock_motors.stubs[stub].called for stub in mins_stubs)
assert all(mock_motors.stubs[stub].called for stub in maxes_stubs)
assert all(mock_motors.stubs[stub].called for stub in homings_stubs)
def test_reset_calibration(mock_motors, dummy_motors):
write_homing_stubs = []
write_mins_stubs = []
write_maxes_stubs = []
for motor in dummy_motors.values():
write_homing_stubs.append(
mock_motors.build_write_stub(*STS_SMS_SERIES_CONTROL_TABLE["Homing_Offset"], motor.id, 0)
)
write_mins_stubs.append(
mock_motors.build_write_stub(*STS_SMS_SERIES_CONTROL_TABLE["Min_Position_Limit"], motor.id, 0)
)
write_maxes_stubs.append(
mock_motors.build_write_stub(*STS_SMS_SERIES_CONTROL_TABLE["Max_Position_Limit"], motor.id, 4095)
)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
bus.reset_calibration()
assert all(mock_motors.stubs[stub].called for stub in write_homing_stubs)
assert all(mock_motors.stubs[stub].called for stub in write_mins_stubs)
assert all(mock_motors.stubs[stub].called for stub in write_maxes_stubs)
def test_set_half_turn_homings(mock_motors, dummy_motors):
"""
For this test, we assume that the homing offsets are already 0 such that
Present_Position == Actual_Position
"""
current_positions = {
1: 1337,
2: 42,
3: 3672,
}
expected_homings = {
1: -710, # 1337 - 2047
2: -2005, # 42 - 2047
3: 1625, # 3672 - 2047
}
read_pos_stub = mock_motors.build_sync_read_stub(
*STS_SMS_SERIES_CONTROL_TABLE["Present_Position"], current_positions
)
write_homing_stubs = []
for id_, homing in expected_homings.items():
encoded_homing = encode_sign_magnitude(homing, 11)
stub = mock_motors.build_write_stub(
*STS_SMS_SERIES_CONTROL_TABLE["Homing_Offset"], id_, encoded_homing
)
write_homing_stubs.append(stub)
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
bus.reset_calibration = MagicMock()
bus.set_half_turn_homings()
bus.reset_calibration.assert_called_once()
assert mock_motors.stubs[read_pos_stub].called
assert all(mock_motors.stubs[stub].called for stub in write_homing_stubs)
def test_record_ranges_of_motion(mock_motors, dummy_motors):
positions = {
1: [351, 42, 1337],
2: [28, 3600, 2444],
3: [4002, 2999, 146],
}
expected_mins = {
"dummy_1": 42,
"dummy_2": 28,
"dummy_3": 146,
}
expected_maxes = {
"dummy_1": 1337,
"dummy_2": 3600,
"dummy_3": 4002,
}
stub = mock_motors.build_sequential_sync_read_stub(
*STS_SMS_SERIES_CONTROL_TABLE["Present_Position"], positions
)
with patch("lerobot.common.motors.motors_bus.enter_pressed", side_effect=[False, True]):
bus = FeetechMotorsBus(port=mock_motors.port, motors=dummy_motors)
bus.connect(handshake=False)
mins, maxes = bus.record_ranges_of_motion(display_values=False)
assert mock_motors.stubs[stub].calls == 3
assert mins == expected_mins
assert maxes == expected_maxes
-157
View File
@@ -1,157 +0,0 @@
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Tests for physical motors and their mocked versions.
If the physical motors are not connected to the computer, or not working,
the test will be skipped.
Example of running a specific test:
```bash
pytest -sx tests/test_motors.py::test_find_port
pytest -sx tests/test_motors.py::test_motors_bus
```
Example of running test on real dynamixel motors connected to the computer:
```bash
pytest -sx 'tests/test_motors.py::test_motors_bus[dynamixel-False]'
```
Example of running test on a mocked version of dynamixel motors:
```bash
pytest -sx 'tests/test_motors.py::test_motors_bus[dynamixel-True]'
```
"""
# TODO(rcadene): measure fps in nightly?
# TODO(rcadene): test logs
# TODO(rcadene): test calibration
# TODO(rcadene): add compatibility with other motors bus
import time
import numpy as np
import pytest
from lerobot.common.robot_devices.utils import RobotDeviceAlreadyConnectedError, RobotDeviceNotConnectedError
from lerobot.scripts.find_motors_bus_port import find_port
from tests.utils import TEST_MOTOR_TYPES, make_motors_bus, require_motor
@pytest.mark.parametrize("motor_type, mock", TEST_MOTOR_TYPES)
@require_motor
def test_find_port(request, motor_type, mock):
if mock:
request.getfixturevalue("patch_builtins_input")
with pytest.raises(OSError):
find_port()
else:
find_port()
@pytest.mark.parametrize("motor_type, mock", TEST_MOTOR_TYPES)
@require_motor
def test_configure_motors_all_ids_1(request, motor_type, mock):
if mock:
request.getfixturevalue("patch_builtins_input")
if motor_type == "dynamixel":
# see X_SERIES_BAUDRATE_TABLE
smaller_baudrate = 9_600
smaller_baudrate_value = 0
elif motor_type == "feetech":
# see SCS_SERIES_BAUDRATE_TABLE
smaller_baudrate = 19_200
smaller_baudrate_value = 7
else:
raise ValueError(motor_type)
input("Are you sure you want to re-configure the motors? Press enter to continue...")
# This test expect the configuration was already correct.
motors_bus = make_motors_bus(motor_type, mock=mock)
motors_bus.connect()
motors_bus.write("Baud_Rate", [smaller_baudrate_value] * len(motors_bus.motors))
motors_bus.set_bus_baudrate(smaller_baudrate)
motors_bus.write("ID", [1] * len(motors_bus.motors))
del motors_bus
# Test configure
motors_bus = make_motors_bus(motor_type, mock=mock)
motors_bus.connect()
assert motors_bus.are_motors_configured()
del motors_bus
@pytest.mark.parametrize("motor_type, mock", TEST_MOTOR_TYPES)
@require_motor
def test_motors_bus(request, motor_type, mock):
if mock:
request.getfixturevalue("patch_builtins_input")
motors_bus = make_motors_bus(motor_type, mock=mock)
# Test reading and writing before connecting raises an error
with pytest.raises(RobotDeviceNotConnectedError):
motors_bus.read("Torque_Enable")
with pytest.raises(RobotDeviceNotConnectedError):
motors_bus.write("Torque_Enable", 1)
with pytest.raises(RobotDeviceNotConnectedError):
motors_bus.disconnect()
# Test deleting the object without connecting first
del motors_bus
# Test connecting
motors_bus = make_motors_bus(motor_type, mock=mock)
motors_bus.connect()
# Test connecting twice raises an error
with pytest.raises(RobotDeviceAlreadyConnectedError):
motors_bus.connect()
# Test disabling torque and reading torque on all motors
motors_bus.write("Torque_Enable", 0)
values = motors_bus.read("Torque_Enable")
assert isinstance(values, np.ndarray)
assert len(values) == len(motors_bus.motors)
assert (values == 0).all()
# Test writing torque on a specific motor
motors_bus.write("Torque_Enable", 1, "gripper")
# Test reading torque from this specific motor. It is now 1
values = motors_bus.read("Torque_Enable", "gripper")
assert len(values) == 1
assert values[0] == 1
# Test reading torque from all motors. It is 1 for the specific motor,
# and 0 on the others.
values = motors_bus.read("Torque_Enable")
gripper_index = motors_bus.motor_names.index("gripper")
assert values[gripper_index] == 1
assert values.sum() == 1 # gripper is the only motor to have torque 1
# Test writing torque on all motors and it is 1 for all.
motors_bus.write("Torque_Enable", 1)
values = motors_bus.read("Torque_Enable")
assert (values == 1).all()
# Test ordering the motors to move slightly (+1 value among 4096) and this move
# can be executed and seen by the motor position sensor
values = motors_bus.read("Present_Position")
motors_bus.write("Goal_Position", values + 1)
# Give time for the motors to move to the goal position
time.sleep(1)
new_values = motors_bus.read("Present_Position")
assert (new_values == values).all()
+342
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@@ -0,0 +1,342 @@
import re
from unittest.mock import patch
import pytest
from lerobot.common.motors.motors_bus import (
Motor,
MotorNormMode,
assert_same_address,
get_address,
get_ctrl_table,
)
from tests.mocks.mock_motors_bus import (
DUMMY_CTRL_TABLE_1,
DUMMY_CTRL_TABLE_2,
DUMMY_MODEL_CTRL_TABLE,
MockMotorsBus,
)
@pytest.fixture
def dummy_motors() -> dict[str, Motor]:
return {
"dummy_1": Motor(1, "model_2", MotorNormMode.RANGE_M100_100),
"dummy_2": Motor(2, "model_3", MotorNormMode.RANGE_M100_100),
"dummy_3": Motor(3, "model_2", MotorNormMode.RANGE_0_100),
}
def test_get_ctrl_table():
model = "model_1"
ctrl_table = get_ctrl_table(DUMMY_MODEL_CTRL_TABLE, model)
assert ctrl_table == DUMMY_CTRL_TABLE_1
def test_get_ctrl_table_error():
model = "model_99"
with pytest.raises(KeyError, match=f"Control table for {model=} not found."):
get_ctrl_table(DUMMY_MODEL_CTRL_TABLE, model)
def test_get_address():
addr, n_bytes = get_address(DUMMY_MODEL_CTRL_TABLE, "model_1", "Firmware_Version")
assert addr == 0
assert n_bytes == 1
def test_get_address_error():
model = "model_1"
data_name = "Lock"
with pytest.raises(KeyError, match=f"Address for '{data_name}' not found in {model} control table."):
get_address(DUMMY_MODEL_CTRL_TABLE, "model_1", data_name)
def test_assert_same_address():
models = ["model_1", "model_2"]
assert_same_address(DUMMY_MODEL_CTRL_TABLE, models, "Present_Position")
def test_assert_same_length_different_addresses():
models = ["model_1", "model_2"]
with pytest.raises(
NotImplementedError,
match=re.escape("At least two motor models use a different address"),
):
assert_same_address(DUMMY_MODEL_CTRL_TABLE, models, "Model_Number")
def test_assert_same_address_different_length():
models = ["model_1", "model_2"]
with pytest.raises(
NotImplementedError,
match=re.escape("At least two motor models use a different bytes representation"),
):
assert_same_address(DUMMY_MODEL_CTRL_TABLE, models, "Goal_Position")
def test__serialize_data_invalid_length():
bus = MockMotorsBus("", {})
with pytest.raises(NotImplementedError):
bus._serialize_data(100, 3)
def test__serialize_data_negative_numbers():
bus = MockMotorsBus("", {})
with pytest.raises(ValueError):
bus._serialize_data(-1, 1)
def test__serialize_data_large_number():
bus = MockMotorsBus("", {})
with pytest.raises(ValueError):
bus._serialize_data(2**32, 4) # 4-byte max is 0xFFFFFFFF
@pytest.mark.parametrize(
"data_name, id_, value",
[
("Firmware_Version", 1, 14),
("Model_Number", 1, 5678),
("Present_Position", 2, 1337),
("Present_Velocity", 3, 42),
],
)
def test_read(data_name, id_, value, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
with (
patch.object(MockMotorsBus, "_read", return_value=(value, 0, 0)) as mock__read,
patch.object(MockMotorsBus, "_decode_sign", return_value={id_: value}) as mock__decode_sign,
patch.object(MockMotorsBus, "_normalize", return_value={id_: value}) as mock__normalize,
):
returned_value = bus.read(data_name, f"dummy_{id_}")
assert returned_value == value
mock__read.assert_called_once_with(
addr,
length,
id_,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to read '{data_name}' on {id_=} after 1 tries.",
)
mock__decode_sign.assert_called_once_with(data_name, {id_: value})
if data_name in bus.normalized_data:
mock__normalize.assert_called_once_with({id_: value})
@pytest.mark.parametrize(
"data_name, id_, value",
[
("Goal_Position", 1, 1337),
("Goal_Velocity", 2, 3682),
("Lock", 3, 1),
],
)
def test_write(data_name, id_, value, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
with (
patch.object(MockMotorsBus, "_write", return_value=(0, 0)) as mock__write,
patch.object(MockMotorsBus, "_encode_sign", return_value={id_: value}) as mock__encode_sign,
patch.object(MockMotorsBus, "_unnormalize", return_value={id_: value}) as mock__unnormalize,
):
bus.write(data_name, f"dummy_{id_}", value)
mock__write.assert_called_once_with(
addr,
length,
id_,
value,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to write '{data_name}' on {id_=} with '{value}' after 1 tries.",
)
mock__encode_sign.assert_called_once_with(data_name, {id_: value})
if data_name in bus.normalized_data:
mock__unnormalize.assert_called_once_with({id_: value})
@pytest.mark.parametrize(
"data_name, id_, value",
[
("Firmware_Version", 1, 14),
("Model_Number", 1, 5678),
("Present_Position", 2, 1337),
("Present_Velocity", 3, 42),
],
)
def test_sync_read_by_str(data_name, id_, value, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
ids = [id_]
expected_value = {f"dummy_{id_}": value}
with (
patch.object(MockMotorsBus, "_sync_read", return_value=({id_: value}, 0)) as mock__sync_read,
patch.object(MockMotorsBus, "_decode_sign", return_value={id_: value}) as mock__decode_sign,
patch.object(MockMotorsBus, "_normalize", return_value={id_: value}) as mock__normalize,
):
returned_dict = bus.sync_read(data_name, f"dummy_{id_}")
assert returned_dict == expected_value
mock__sync_read.assert_called_once_with(
addr,
length,
ids,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to sync read '{data_name}' on {ids=} after 1 tries.",
)
mock__decode_sign.assert_called_once_with(data_name, {id_: value})
if data_name in bus.normalized_data:
mock__normalize.assert_called_once_with({id_: value})
@pytest.mark.parametrize(
"data_name, ids_values",
[
("Model_Number", {1: 5678}),
("Present_Position", {1: 1337, 2: 42}),
("Present_Velocity", {1: 1337, 2: 42, 3: 4016}),
],
ids=["1 motor", "2 motors", "3 motors"],
)
def test_sync_read_by_list(data_name, ids_values, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
ids = list(ids_values)
expected_values = {f"dummy_{id_}": val for id_, val in ids_values.items()}
with (
patch.object(MockMotorsBus, "_sync_read", return_value=(ids_values, 0)) as mock__sync_read,
patch.object(MockMotorsBus, "_decode_sign", return_value=ids_values) as mock__decode_sign,
patch.object(MockMotorsBus, "_normalize", return_value=ids_values) as mock__normalize,
):
returned_dict = bus.sync_read(data_name, [f"dummy_{id_}" for id_ in ids])
assert returned_dict == expected_values
mock__sync_read.assert_called_once_with(
addr,
length,
ids,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to sync read '{data_name}' on {ids=} after 1 tries.",
)
mock__decode_sign.assert_called_once_with(data_name, ids_values)
if data_name in bus.normalized_data:
mock__normalize.assert_called_once_with(ids_values)
@pytest.mark.parametrize(
"data_name, ids_values",
[
("Model_Number", {1: 5678, 2: 5799, 3: 5678}),
("Present_Position", {1: 1337, 2: 42, 3: 4016}),
("Goal_Position", {1: 4008, 2: 199, 3: 3446}),
],
ids=["Model_Number", "Present_Position", "Goal_Position"],
)
def test_sync_read_by_none(data_name, ids_values, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
ids = list(ids_values)
expected_values = {f"dummy_{id_}": val for id_, val in ids_values.items()}
with (
patch.object(MockMotorsBus, "_sync_read", return_value=(ids_values, 0)) as mock__sync_read,
patch.object(MockMotorsBus, "_decode_sign", return_value=ids_values) as mock__decode_sign,
patch.object(MockMotorsBus, "_normalize", return_value=ids_values) as mock__normalize,
):
returned_dict = bus.sync_read(data_name)
assert returned_dict == expected_values
mock__sync_read.assert_called_once_with(
addr,
length,
ids,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to sync read '{data_name}' on {ids=} after 1 tries.",
)
mock__decode_sign.assert_called_once_with(data_name, ids_values)
if data_name in bus.normalized_data:
mock__normalize.assert_called_once_with(ids_values)
@pytest.mark.parametrize(
"data_name, value",
[
("Goal_Position", 500),
("Goal_Velocity", 4010),
("Lock", 0),
],
)
def test_sync_write_by_single_value(data_name, value, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
ids_values = {m.id: value for m in dummy_motors.values()}
with (
patch.object(MockMotorsBus, "_sync_write", return_value=(ids_values, 0)) as mock__sync_write,
patch.object(MockMotorsBus, "_encode_sign", return_value=ids_values) as mock__encode_sign,
patch.object(MockMotorsBus, "_unnormalize", return_value=ids_values) as mock__unnormalize,
):
bus.sync_write(data_name, value)
mock__sync_write.assert_called_once_with(
addr,
length,
ids_values,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to sync write '{data_name}' with {ids_values=} after 1 tries.",
)
mock__encode_sign.assert_called_once_with(data_name, ids_values)
if data_name in bus.normalized_data:
mock__unnormalize.assert_called_once_with(ids_values)
@pytest.mark.parametrize(
"data_name, ids_values",
[
("Goal_Position", {1: 1337, 2: 42, 3: 4016}),
("Goal_Velocity", {1: 50, 2: 83, 3: 2777}),
("Lock", {1: 0, 2: 0, 3: 1}),
],
ids=["Goal_Position", "Goal_Velocity", "Lock"],
)
def test_sync_write_by_value_dict(data_name, ids_values, dummy_motors):
bus = MockMotorsBus("/dev/dummy-port", dummy_motors)
bus.connect(handshake=False)
addr, length = DUMMY_CTRL_TABLE_2[data_name]
values = {f"dummy_{id_}": val for id_, val in ids_values.items()}
with (
patch.object(MockMotorsBus, "_sync_write", return_value=(ids_values, 0)) as mock__sync_write,
patch.object(MockMotorsBus, "_encode_sign", return_value=ids_values) as mock__encode_sign,
patch.object(MockMotorsBus, "_unnormalize", return_value=ids_values) as mock__unnormalize,
):
bus.sync_write(data_name, values)
mock__sync_write.assert_called_once_with(
addr,
length,
ids_values,
num_retry=0,
raise_on_error=True,
err_msg=f"Failed to sync write '{data_name}' with {ids_values=} after 1 tries.",
)
mock__encode_sign.assert_called_once_with(data_name, ids_values)
if data_name in bus.normalized_data:
mock__unnormalize.assert_called_once_with(ids_values)
-3
View File
@@ -37,7 +37,6 @@ def test_diffuser_scheduler(optimizer):
"base_lrs": [0.001],
"last_epoch": 1,
"lr_lambdas": [None],
"verbose": False,
}
assert scheduler.state_dict() == expected_state_dict
@@ -56,7 +55,6 @@ def test_vqbet_scheduler(optimizer):
"base_lrs": [0.001],
"last_epoch": 1,
"lr_lambdas": [None],
"verbose": False,
}
assert scheduler.state_dict() == expected_state_dict
@@ -77,7 +75,6 @@ def test_cosine_decay_with_warmup_scheduler(optimizer):
"base_lrs": [0.001],
"last_epoch": 1,
"lr_lambdas": [None],
"verbose": False,
}
assert scheduler.state_dict() == expected_state_dict
@@ -0,0 +1,139 @@
# !/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import torch
from lerobot.common.policies.sac.reward_model.configuration_classifier import RewardClassifierConfig
from lerobot.common.policies.sac.reward_model.modeling_classifier import ClassifierOutput
from lerobot.configs.types import FeatureType, NormalizationMode, PolicyFeature
from tests.utils import require_package
def test_classifier_output():
output = ClassifierOutput(
logits=torch.tensor([1, 2, 3]),
probabilities=torch.tensor([0.1, 0.2, 0.3]),
hidden_states=None,
)
assert (
f"{output}"
== "ClassifierOutput(logits=tensor([1, 2, 3]), probabilities=tensor([0.1000, 0.2000, 0.3000]), hidden_states=None)"
)
@require_package("transformers")
def test_binary_classifier_with_default_params():
from lerobot.common.policies.sac.reward_model.modeling_classifier import Classifier
config = RewardClassifierConfig()
config.input_features = {
"observation.image": PolicyFeature(type=FeatureType.VISUAL, shape=(3, 224, 224)),
}
config.output_features = {
"next.reward": PolicyFeature(type=FeatureType.REWARD, shape=(1,)),
}
config.normalization_mapping = {
"VISUAL": NormalizationMode.IDENTITY,
"REWARD": NormalizationMode.IDENTITY,
}
config.num_cameras = 1
classifier = Classifier(config)
batch_size = 10
input = {
"observation.image": torch.rand((batch_size, 3, 128, 128)),
"next.reward": torch.randint(low=0, high=2, size=(batch_size,)).float(),
}
images, labels = classifier.extract_images_and_labels(input)
assert len(images) == 1
assert images[0].shape == torch.Size([batch_size, 3, 128, 128])
assert labels.shape == torch.Size([batch_size])
output = classifier.predict(images)
assert output is not None
assert output.logits.size() == torch.Size([batch_size])
assert not torch.isnan(output.logits).any(), "Tensor contains NaN values"
assert output.probabilities.shape == torch.Size([batch_size])
assert not torch.isnan(output.probabilities).any(), "Tensor contains NaN values"
assert output.hidden_states.shape == torch.Size([batch_size, 256])
assert not torch.isnan(output.hidden_states).any(), "Tensor contains NaN values"
@require_package("transformers")
def test_multiclass_classifier():
from lerobot.common.policies.sac.reward_model.modeling_classifier import Classifier
num_classes = 5
config = RewardClassifierConfig()
config.input_features = {
"observation.image": PolicyFeature(type=FeatureType.VISUAL, shape=(3, 224, 224)),
}
config.output_features = {
"next.reward": PolicyFeature(type=FeatureType.REWARD, shape=(num_classes,)),
}
config.num_cameras = 1
config.num_classes = num_classes
classifier = Classifier(config)
batch_size = 10
input = {
"observation.image": torch.rand((batch_size, 3, 128, 128)),
"next.reward": torch.rand((batch_size, num_classes)),
}
images, labels = classifier.extract_images_and_labels(input)
assert len(images) == 1
assert images[0].shape == torch.Size([batch_size, 3, 128, 128])
assert labels.shape == torch.Size([batch_size, num_classes])
output = classifier.predict(images)
assert output is not None
assert output.logits.shape == torch.Size([batch_size, num_classes])
assert not torch.isnan(output.logits).any(), "Tensor contains NaN values"
assert output.probabilities.shape == torch.Size([batch_size, num_classes])
assert not torch.isnan(output.probabilities).any(), "Tensor contains NaN values"
assert output.hidden_states.shape == torch.Size([batch_size, 256])
assert not torch.isnan(output.hidden_states).any(), "Tensor contains NaN values"
@require_package("transformers")
def test_default_device():
from lerobot.common.policies.sac.reward_model.modeling_classifier import Classifier
config = RewardClassifierConfig()
assert config.device == "cpu"
classifier = Classifier(config)
for p in classifier.parameters():
assert p.device == torch.device("cpu")
@require_package("transformers")
def test_explicit_device_setup():
from lerobot.common.policies.sac.reward_model.modeling_classifier import Classifier
config = RewardClassifierConfig(device="cpu")
assert config.device == "cpu"
classifier = Classifier(config)
for p in classifier.parameters():
assert p.device == torch.device("cpu")
+217
View File
@@ -0,0 +1,217 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import pytest
from lerobot.common.policies.sac.configuration_sac import (
ActorLearnerConfig,
ActorNetworkConfig,
ConcurrencyConfig,
CriticNetworkConfig,
PolicyConfig,
SACConfig,
)
from lerobot.configs.types import FeatureType, NormalizationMode, PolicyFeature
def test_sac_config_default_initialization():
config = SACConfig()
assert config.normalization_mapping == {
"VISUAL": NormalizationMode.MEAN_STD,
"STATE": NormalizationMode.MIN_MAX,
"ENV": NormalizationMode.MIN_MAX,
"ACTION": NormalizationMode.MIN_MAX,
}
assert config.dataset_stats == {
"observation.image": {
"mean": [0.485, 0.456, 0.406],
"std": [0.229, 0.224, 0.225],
},
"observation.state": {
"min": [0.0, 0.0],
"max": [1.0, 1.0],
},
"action": {
"min": [0.0, 0.0, 0.0],
"max": [1.0, 1.0, 1.0],
},
}
# Basic parameters
assert config.device == "cpu"
assert config.storage_device == "cpu"
assert config.discount == 0.99
assert config.temperature_init == 1.0
assert config.num_critics == 2
# Architecture specifics
assert config.vision_encoder_name is None
assert config.freeze_vision_encoder is True
assert config.image_encoder_hidden_dim == 32
assert config.shared_encoder is True
assert config.num_discrete_actions is None
assert config.image_embedding_pooling_dim == 8
# Training parameters
assert config.online_steps == 1000000
assert config.online_env_seed == 10000
assert config.online_buffer_capacity == 100000
assert config.offline_buffer_capacity == 100000
assert config.async_prefetch is False
assert config.online_step_before_learning == 100
assert config.policy_update_freq == 1
# SAC algorithm parameters
assert config.num_subsample_critics is None
assert config.critic_lr == 3e-4
assert config.actor_lr == 3e-4
assert config.temperature_lr == 3e-4
assert config.critic_target_update_weight == 0.005
assert config.utd_ratio == 1
assert config.state_encoder_hidden_dim == 256
assert config.latent_dim == 256
assert config.target_entropy is None
assert config.use_backup_entropy is True
assert config.grad_clip_norm == 40.0
# Dataset stats defaults
expected_dataset_stats = {
"observation.image": {
"mean": [0.485, 0.456, 0.406],
"std": [0.229, 0.224, 0.225],
},
"observation.state": {
"min": [0.0, 0.0],
"max": [1.0, 1.0],
},
"action": {
"min": [0.0, 0.0, 0.0],
"max": [1.0, 1.0, 1.0],
},
}
assert config.dataset_stats == expected_dataset_stats
# Critic network configuration
assert config.critic_network_kwargs.hidden_dims == [256, 256]
assert config.critic_network_kwargs.activate_final is True
assert config.critic_network_kwargs.final_activation is None
# Actor network configuration
assert config.actor_network_kwargs.hidden_dims == [256, 256]
assert config.actor_network_kwargs.activate_final is True
# Policy configuration
assert config.policy_kwargs.use_tanh_squash is True
assert config.policy_kwargs.std_min == 1e-5
assert config.policy_kwargs.std_max == 10.0
assert config.policy_kwargs.init_final == 0.05
# Discrete critic network configuration
assert config.discrete_critic_network_kwargs.hidden_dims == [256, 256]
assert config.discrete_critic_network_kwargs.activate_final is True
assert config.discrete_critic_network_kwargs.final_activation is None
# Actor learner configuration
assert config.actor_learner_config.learner_host == "127.0.0.1"
assert config.actor_learner_config.learner_port == 50051
assert config.actor_learner_config.policy_parameters_push_frequency == 4
# Concurrency configuration
assert config.concurrency.actor == "threads"
assert config.concurrency.learner == "threads"
assert isinstance(config.actor_network_kwargs, ActorNetworkConfig)
assert isinstance(config.critic_network_kwargs, CriticNetworkConfig)
assert isinstance(config.policy_kwargs, PolicyConfig)
assert isinstance(config.actor_learner_config, ActorLearnerConfig)
assert isinstance(config.concurrency, ConcurrencyConfig)
def test_critic_network_kwargs():
config = CriticNetworkConfig()
assert config.hidden_dims == [256, 256]
assert config.activate_final is True
assert config.final_activation is None
def test_actor_network_kwargs():
config = ActorNetworkConfig()
assert config.hidden_dims == [256, 256]
assert config.activate_final is True
def test_policy_kwargs():
config = PolicyConfig()
assert config.use_tanh_squash is True
assert config.std_min == 1e-5
assert config.std_max == 10.0
assert config.init_final == 0.05
def test_actor_learner_config():
config = ActorLearnerConfig()
assert config.learner_host == "127.0.0.1"
assert config.learner_port == 50051
assert config.policy_parameters_push_frequency == 4
def test_concurrency_config():
config = ConcurrencyConfig()
assert config.actor == "threads"
assert config.learner == "threads"
def test_sac_config_custom_initialization():
config = SACConfig(
device="cpu",
discount=0.95,
temperature_init=0.5,
num_critics=3,
)
assert config.device == "cpu"
assert config.discount == 0.95
assert config.temperature_init == 0.5
assert config.num_critics == 3
def test_validate_features():
config = SACConfig(
input_features={"observation.state": PolicyFeature(type=FeatureType.STATE, shape=(10,))},
output_features={"action": PolicyFeature(type=FeatureType.ACTION, shape=(3,))},
)
config.validate_features()
def test_validate_features_missing_observation():
config = SACConfig(
input_features={"wrong_key": PolicyFeature(type=FeatureType.STATE, shape=(10,))},
output_features={"action": PolicyFeature(type=FeatureType.ACTION, shape=(3,))},
)
with pytest.raises(
ValueError, match="You must provide either 'observation.state' or an image observation"
):
config.validate_features()
def test_validate_features_missing_action():
config = SACConfig(
input_features={"observation.state": PolicyFeature(type=FeatureType.STATE, shape=(10,))},
output_features={"wrong_key": PolicyFeature(type=FeatureType.ACTION, shape=(3,))},
)
with pytest.raises(ValueError, match="You must provide 'action' in the output features"):
config.validate_features()
+541
View File
@@ -0,0 +1,541 @@
# !/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import math
import pytest
import torch
from torch import Tensor, nn
from lerobot.common.policies.sac.configuration_sac import SACConfig
from lerobot.common.policies.sac.modeling_sac import MLP, SACPolicy
from lerobot.common.utils.random_utils import seeded_context, set_seed
from lerobot.configs.types import FeatureType, PolicyFeature
try:
import transformers # noqa: F401
TRANSFORMERS_AVAILABLE = True
except ImportError:
TRANSFORMERS_AVAILABLE = False
@pytest.fixture(autouse=True)
def set_random_seed():
seed = 42
set_seed(seed)
def test_mlp_with_default_args():
mlp = MLP(input_dim=10, hidden_dims=[256, 256])
x = torch.randn(10)
y = mlp(x)
assert y.shape == (256,)
def test_mlp_with_batch_dim():
mlp = MLP(input_dim=10, hidden_dims=[256, 256])
x = torch.randn(2, 10)
y = mlp(x)
assert y.shape == (2, 256)
def test_forward_with_empty_hidden_dims():
mlp = MLP(input_dim=10, hidden_dims=[])
x = torch.randn(1, 10)
assert mlp(x).shape == (1, 10)
def test_mlp_with_dropout():
mlp = MLP(input_dim=10, hidden_dims=[256, 256, 11], dropout_rate=0.1)
x = torch.randn(1, 10)
y = mlp(x)
assert y.shape == (1, 11)
drop_out_layers_count = sum(isinstance(layer, nn.Dropout) for layer in mlp.net)
assert drop_out_layers_count == 2
def test_mlp_with_custom_final_activation():
mlp = MLP(input_dim=10, hidden_dims=[256, 256], final_activation=torch.nn.Tanh())
x = torch.randn(1, 10)
y = mlp(x)
assert y.shape == (1, 256)
assert (y >= -1).all() and (y <= 1).all()
def test_sac_policy_with_default_args():
with pytest.raises(ValueError, match="should be an instance of class `PreTrainedConfig`"):
SACPolicy()
def create_dummy_state(batch_size: int, state_dim: int = 10) -> Tensor:
return {
"observation.state": torch.randn(batch_size, state_dim),
}
def create_dummy_with_visual_input(batch_size: int, state_dim: int = 10) -> Tensor:
return {
"observation.image": torch.randn(batch_size, 3, 84, 84),
"observation.state": torch.randn(batch_size, state_dim),
}
def create_dummy_action(batch_size: int, action_dim: int = 10) -> Tensor:
return torch.randn(batch_size, action_dim)
def create_default_train_batch(
batch_size: int = 8, state_dim: int = 10, action_dim: int = 10
) -> dict[str, Tensor]:
return {
"action": create_dummy_action(batch_size, action_dim),
"reward": torch.randn(batch_size),
"state": create_dummy_state(batch_size, state_dim),
"next_state": create_dummy_state(batch_size, state_dim),
"done": torch.randn(batch_size),
}
def create_train_batch_with_visual_input(
batch_size: int = 8, state_dim: int = 10, action_dim: int = 10
) -> dict[str, Tensor]:
return {
"action": create_dummy_action(batch_size, action_dim),
"reward": torch.randn(batch_size),
"state": create_dummy_with_visual_input(batch_size, state_dim),
"next_state": create_dummy_with_visual_input(batch_size, state_dim),
"done": torch.randn(batch_size),
}
def create_observation_batch(batch_size: int = 8, state_dim: int = 10) -> dict[str, Tensor]:
return {
"observation.state": torch.randn(batch_size, state_dim),
}
def create_observation_batch_with_visual_input(batch_size: int = 8, state_dim: int = 10) -> dict[str, Tensor]:
return {
"observation.state": torch.randn(batch_size, state_dim),
"observation.image": torch.randn(batch_size, 3, 84, 84),
}
def make_optimizers(policy: SACPolicy, has_discrete_action: bool = False) -> dict[str, torch.optim.Optimizer]:
"""Create optimizers for the SAC policy."""
optimizer_actor = torch.optim.Adam(
# Handle the case of shared encoder where the encoder weights are not optimized with the actor gradient
params=[
p
for n, p in policy.actor.named_parameters()
if not policy.config.shared_encoder or not n.startswith("encoder")
],
lr=policy.config.actor_lr,
)
optimizer_critic = torch.optim.Adam(
params=policy.critic_ensemble.parameters(),
lr=policy.config.critic_lr,
)
optimizer_temperature = torch.optim.Adam(
params=[policy.log_alpha],
lr=policy.config.critic_lr,
)
optimizers = {
"actor": optimizer_actor,
"critic": optimizer_critic,
"temperature": optimizer_temperature,
}
if has_discrete_action:
optimizers["discrete_critic"] = torch.optim.Adam(
params=policy.discrete_critic.parameters(),
lr=policy.config.critic_lr,
)
return optimizers
def create_default_config(
state_dim: int, continuous_action_dim: int, has_discrete_action: bool = False
) -> SACConfig:
action_dim = continuous_action_dim
if has_discrete_action:
action_dim += 1
config = SACConfig(
input_features={"observation.state": PolicyFeature(type=FeatureType.STATE, shape=(state_dim,))},
output_features={"action": PolicyFeature(type=FeatureType.ACTION, shape=(continuous_action_dim,))},
dataset_stats={
"observation.state": {
"min": [0.0] * state_dim,
"max": [1.0] * state_dim,
},
"action": {
"min": [0.0] * continuous_action_dim,
"max": [1.0] * continuous_action_dim,
},
},
)
config.validate_features()
return config
def create_config_with_visual_input(
state_dim: int, continuous_action_dim: int, has_discrete_action: bool = False
) -> SACConfig:
config = create_default_config(
state_dim=state_dim,
continuous_action_dim=continuous_action_dim,
has_discrete_action=has_discrete_action,
)
config.input_features["observation.image"] = PolicyFeature(type=FeatureType.VISUAL, shape=(3, 84, 84))
config.dataset_stats["observation.image"] = {
"mean": torch.randn(3, 1, 1),
"std": torch.randn(3, 1, 1),
}
# Let make tests a little bit faster
config.state_encoder_hidden_dim = 32
config.latent_dim = 32
config.validate_features()
return config
@pytest.mark.parametrize("batch_size,state_dim,action_dim", [(2, 6, 6), (1, 10, 10)])
def test_sac_policy_with_default_config(batch_size: int, state_dim: int, action_dim: int):
batch = create_default_train_batch(batch_size=batch_size, action_dim=action_dim, state_dim=state_dim)
config = create_default_config(state_dim=state_dim, continuous_action_dim=action_dim)
policy = SACPolicy(config=config)
policy.train()
optimizers = make_optimizers(policy)
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
assert cirtic_loss.item() is not None
assert cirtic_loss.shape == ()
cirtic_loss.backward()
optimizers["critic"].step()
actor_loss = policy.forward(batch, model="actor")["loss_actor"]
assert actor_loss.item() is not None
assert actor_loss.shape == ()
actor_loss.backward()
optimizers["actor"].step()
temperature_loss = policy.forward(batch, model="temperature")["loss_temperature"]
assert temperature_loss.item() is not None
assert temperature_loss.shape == ()
temperature_loss.backward()
optimizers["temperature"].step()
policy.eval()
with torch.no_grad():
observation_batch = create_observation_batch(batch_size=batch_size, state_dim=state_dim)
selected_action = policy.select_action(observation_batch)
assert selected_action.shape == (batch_size, action_dim)
@pytest.mark.parametrize("batch_size,state_dim,action_dim", [(2, 6, 6), (1, 10, 10)])
def test_sac_policy_with_visual_input(batch_size: int, state_dim: int, action_dim: int):
config = create_config_with_visual_input(state_dim=state_dim, continuous_action_dim=action_dim)
policy = SACPolicy(config=config)
batch = create_train_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim, action_dim=action_dim
)
policy.train()
optimizers = make_optimizers(policy)
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
assert cirtic_loss.item() is not None
assert cirtic_loss.shape == ()
cirtic_loss.backward()
optimizers["critic"].step()
actor_loss = policy.forward(batch, model="actor")["loss_actor"]
assert actor_loss.item() is not None
assert actor_loss.shape == ()
actor_loss.backward()
optimizers["actor"].step()
temperature_loss = policy.forward(batch, model="temperature")["loss_temperature"]
assert temperature_loss.item() is not None
assert temperature_loss.shape == ()
temperature_loss.backward()
optimizers["temperature"].step()
policy.eval()
with torch.no_grad():
observation_batch = create_observation_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim
)
selected_action = policy.select_action(observation_batch)
assert selected_action.shape == (batch_size, action_dim)
# Let's check best candidates for pretrained encoders
@pytest.mark.parametrize(
"batch_size,state_dim,action_dim,vision_encoder_name",
[(1, 6, 6, "helper2424/resnet10"), (1, 6, 6, "facebook/convnext-base-224")],
)
@pytest.mark.skipif(not TRANSFORMERS_AVAILABLE, reason="Transformers are not installed")
def test_sac_policy_with_pretrained_encoder(
batch_size: int, state_dim: int, action_dim: int, vision_encoder_name: str
):
config = create_config_with_visual_input(state_dim=state_dim, continuous_action_dim=action_dim)
config.vision_encoder_name = vision_encoder_name
policy = SACPolicy(config=config)
policy.train()
batch = create_train_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim, action_dim=action_dim
)
optimizers = make_optimizers(policy)
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
assert cirtic_loss.item() is not None
assert cirtic_loss.shape == ()
cirtic_loss.backward()
optimizers["critic"].step()
actor_loss = policy.forward(batch, model="actor")["loss_actor"]
assert actor_loss.item() is not None
assert actor_loss.shape == ()
def test_sac_policy_with_shared_encoder():
batch_size = 2
action_dim = 10
state_dim = 10
config = create_config_with_visual_input(state_dim=state_dim, continuous_action_dim=action_dim)
config.shared_encoder = True
policy = SACPolicy(config=config)
policy.train()
batch = create_train_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim, action_dim=action_dim
)
policy.train()
optimizers = make_optimizers(policy)
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
assert cirtic_loss.item() is not None
assert cirtic_loss.shape == ()
cirtic_loss.backward()
optimizers["critic"].step()
actor_loss = policy.forward(batch, model="actor")["loss_actor"]
assert actor_loss.item() is not None
assert actor_loss.shape == ()
actor_loss.backward()
optimizers["actor"].step()
def test_sac_policy_with_discrete_critic():
batch_size = 2
continuous_action_dim = 9
full_action_dim = continuous_action_dim + 1 # the last action is discrete
state_dim = 10
config = create_config_with_visual_input(
state_dim=state_dim, continuous_action_dim=continuous_action_dim, has_discrete_action=True
)
num_discrete_actions = 5
config.num_discrete_actions = num_discrete_actions
policy = SACPolicy(config=config)
policy.train()
batch = create_train_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim, action_dim=full_action_dim
)
policy.train()
optimizers = make_optimizers(policy, has_discrete_action=True)
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
assert cirtic_loss.item() is not None
assert cirtic_loss.shape == ()
cirtic_loss.backward()
optimizers["critic"].step()
discrete_critic_loss = policy.forward(batch, model="discrete_critic")["loss_discrete_critic"]
assert discrete_critic_loss.item() is not None
assert discrete_critic_loss.shape == ()
discrete_critic_loss.backward()
optimizers["discrete_critic"].step()
actor_loss = policy.forward(batch, model="actor")["loss_actor"]
assert actor_loss.item() is not None
assert actor_loss.shape == ()
actor_loss.backward()
optimizers["actor"].step()
policy.eval()
with torch.no_grad():
observation_batch = create_observation_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim
)
selected_action = policy.select_action(observation_batch)
assert selected_action.shape == (batch_size, full_action_dim)
discrete_actions = selected_action[:, -1].long()
discrete_action_values = set(discrete_actions.tolist())
assert all(action in range(num_discrete_actions) for action in discrete_action_values), (
f"Discrete action {discrete_action_values} is not in range({num_discrete_actions})"
)
def test_sac_policy_with_default_entropy():
config = create_default_config(continuous_action_dim=10, state_dim=10)
policy = SACPolicy(config=config)
assert policy.target_entropy == -5.0
def test_sac_policy_default_target_entropy_with_discrete_action():
config = create_config_with_visual_input(state_dim=10, continuous_action_dim=6, has_discrete_action=True)
policy = SACPolicy(config=config)
assert policy.target_entropy == -3.0
def test_sac_policy_with_predefined_entropy():
config = create_default_config(state_dim=10, continuous_action_dim=6)
config.target_entropy = -3.5
policy = SACPolicy(config=config)
assert policy.target_entropy == pytest.approx(-3.5)
def test_sac_policy_update_temperature():
config = create_default_config(continuous_action_dim=10, state_dim=10)
policy = SACPolicy(config=config)
assert policy.temperature == pytest.approx(1.0)
policy.log_alpha.data = torch.tensor([math.log(0.1)])
policy.update_temperature()
assert policy.temperature == pytest.approx(0.1)
def test_sac_policy_update_target_network():
config = create_default_config(state_dim=10, continuous_action_dim=6)
config.critic_target_update_weight = 1.0
policy = SACPolicy(config=config)
policy.train()
for p in policy.critic_ensemble.parameters():
p.data = torch.ones_like(p.data)
policy.update_target_networks()
for p in policy.critic_target.parameters():
assert torch.allclose(p.data, torch.ones_like(p.data)), (
f"Target network {p.data} is not equal to {torch.ones_like(p.data)}"
)
@pytest.mark.parametrize("num_critics", [1, 3])
def test_sac_policy_with_critics_number_of_heads(num_critics: int):
batch_size = 2
action_dim = 10
state_dim = 10
config = create_config_with_visual_input(state_dim=state_dim, continuous_action_dim=action_dim)
config.num_critics = num_critics
policy = SACPolicy(config=config)
policy.train()
assert len(policy.critic_ensemble.critics) == num_critics
batch = create_train_batch_with_visual_input(
batch_size=batch_size, state_dim=state_dim, action_dim=action_dim
)
policy.train()
optimizers = make_optimizers(policy)
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
assert cirtic_loss.item() is not None
assert cirtic_loss.shape == ()
cirtic_loss.backward()
optimizers["critic"].step()
def test_sac_policy_save_and_load(tmp_path):
root = tmp_path / "test_sac_save_and_load"
state_dim = 10
action_dim = 10
batch_size = 2
config = create_default_config(state_dim=state_dim, continuous_action_dim=action_dim)
policy = SACPolicy(config=config)
policy.eval()
policy.save_pretrained(root)
loaded_policy = SACPolicy.from_pretrained(root, config=config)
loaded_policy.eval()
batch = create_default_train_batch(batch_size=1, state_dim=10, action_dim=10)
with torch.no_grad():
with seeded_context(12):
# Collect policy values before saving
cirtic_loss = policy.forward(batch, model="critic")["loss_critic"]
actor_loss = policy.forward(batch, model="actor")["loss_actor"]
temperature_loss = policy.forward(batch, model="temperature")["loss_temperature"]
observation_batch = create_observation_batch(batch_size=batch_size, state_dim=state_dim)
actions = policy.select_action(observation_batch)
with seeded_context(12):
# Collect policy values after loading
loaded_cirtic_loss = loaded_policy.forward(batch, model="critic")["loss_critic"]
loaded_actor_loss = loaded_policy.forward(batch, model="actor")["loss_actor"]
loaded_temperature_loss = loaded_policy.forward(batch, model="temperature")["loss_temperature"]
loaded_observation_batch = create_observation_batch(batch_size=batch_size, state_dim=state_dim)
loaded_actions = loaded_policy.select_action(loaded_observation_batch)
assert policy.state_dict().keys() == loaded_policy.state_dict().keys()
for k in policy.state_dict():
assert torch.allclose(policy.state_dict()[k], loaded_policy.state_dict()[k], atol=1e-6)
# Compare values before and after saving and loading
# They should be the same
assert torch.allclose(cirtic_loss, loaded_cirtic_loss)
assert torch.allclose(actor_loss, loaded_actor_loss)
assert torch.allclose(temperature_loss, loaded_temperature_loss)
assert torch.allclose(actions, loaded_actions)
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#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from concurrent import futures
from unittest.mock import patch
import pytest
import torch
from torch.multiprocessing import Event, Queue
from lerobot.common.utils.transition import Transition
from tests.utils import require_package
def create_learner_service_stub():
import grpc
from lerobot.common.transport import services_pb2, services_pb2_grpc
class MockLearnerService(services_pb2_grpc.LearnerServiceServicer):
def __init__(self):
self.ready_call_count = 0
self.should_fail = False
def Ready(self, request, context): # noqa: N802
self.ready_call_count += 1
if self.should_fail:
context.set_code(grpc.StatusCode.UNAVAILABLE)
context.set_details("Service unavailable")
raise grpc.RpcError("Service unavailable")
return services_pb2.Empty()
"""Fixture to start a LearnerService gRPC server and provide a connected stub."""
servicer = MockLearnerService()
# Create a gRPC server and add our servicer to it.
server = grpc.server(futures.ThreadPoolExecutor(max_workers=4))
services_pb2_grpc.add_LearnerServiceServicer_to_server(servicer, server)
port = server.add_insecure_port("[::]:0") # bind to a free port chosen by OS
server.start() # start the server (non-blocking call):contentReference[oaicite:1]{index=1}
# Create a client channel and stub connected to the server's port.
channel = grpc.insecure_channel(f"localhost:{port}")
return services_pb2_grpc.LearnerServiceStub(channel), servicer, channel, server
def close_service_stub(channel, server):
channel.close()
server.stop(None)
@require_package("grpc")
def test_establish_learner_connection_success():
from lerobot.scripts.rl.actor import establish_learner_connection
"""Test successful connection establishment."""
stub, _servicer, channel, server = create_learner_service_stub()
shutdown_event = Event()
# Test successful connection
result = establish_learner_connection(stub, shutdown_event, attempts=5)
assert result is True
close_service_stub(channel, server)
@require_package("grpc")
def test_establish_learner_connection_failure():
from lerobot.scripts.rl.actor import establish_learner_connection
"""Test connection failure."""
stub, servicer, channel, server = create_learner_service_stub()
servicer.should_fail = True
shutdown_event = Event()
# Test failed connection
with patch("time.sleep"): # Speed up the test
result = establish_learner_connection(stub, shutdown_event, attempts=2)
assert result is False
close_service_stub(channel, server)
@require_package("grpc")
def test_push_transitions_to_transport_queue():
from lerobot.common.transport.utils import bytes_to_transitions
from lerobot.scripts.rl.actor import push_transitions_to_transport_queue
from tests.transport.test_transport_utils import assert_transitions_equal
"""Test pushing transitions to transport queue."""
# Create mock transitions
transitions = []
for i in range(3):
transition = Transition(
state={"observation": torch.randn(3, 64, 64), "state": torch.randn(10)},
action=torch.randn(5),
reward=torch.tensor(1.0 + i),
done=torch.tensor(False),
truncated=torch.tensor(False),
next_state={"observation": torch.randn(3, 64, 64), "state": torch.randn(10)},
complementary_info={"step": torch.tensor(i)},
)
transitions.append(transition)
transitions_queue = Queue()
# Test pushing transitions
push_transitions_to_transport_queue(transitions, transitions_queue)
# Verify the data can be retrieved
serialized_data = transitions_queue.get()
assert isinstance(serialized_data, bytes)
deserialized_transitions = bytes_to_transitions(serialized_data)
assert len(deserialized_transitions) == len(transitions)
for i, deserialized_transition in enumerate(deserialized_transitions):
assert_transitions_equal(deserialized_transition, transitions[i])
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_transitions_stream():
from lerobot.scripts.rl.actor import transitions_stream
"""Test transitions stream functionality."""
shutdown_event = Event()
transitions_queue = Queue()
# Add test data to queue
test_data = [b"transition_data_1", b"transition_data_2", b"transition_data_3"]
for data in test_data:
transitions_queue.put(data)
# Collect streamed data
streamed_data = []
stream_generator = transitions_stream(shutdown_event, transitions_queue, 0.1)
# Process a few items
for i, message in enumerate(stream_generator):
streamed_data.append(message)
if i >= len(test_data) - 1:
shutdown_event.set()
break
# Verify we got messages
assert len(streamed_data) == len(test_data)
assert streamed_data[0].data == b"transition_data_1"
assert streamed_data[1].data == b"transition_data_2"
assert streamed_data[2].data == b"transition_data_3"
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_interactions_stream():
from lerobot.common.transport.utils import bytes_to_python_object, python_object_to_bytes
from lerobot.scripts.rl.actor import interactions_stream
"""Test interactions stream functionality."""
shutdown_event = Event()
interactions_queue = Queue()
# Create test interaction data (similar structure to what would be sent)
test_interactions = [
{"episode_reward": 10.5, "step": 1, "policy_fps": 30.2},
{"episode_reward": 15.2, "step": 2, "policy_fps": 28.7},
{"episode_reward": 8.7, "step": 3, "policy_fps": 29.1},
]
# Serialize the interaction data as it would be in practice
test_data = [
interactions_queue.put(python_object_to_bytes(interaction)) for interaction in test_interactions
]
# Collect streamed data
streamed_data = []
stream_generator = interactions_stream(shutdown_event, interactions_queue, 0.1)
# Process the items
for i, message in enumerate(stream_generator):
streamed_data.append(message)
if i >= len(test_data) - 1:
shutdown_event.set()
break
# Verify we got messages
assert len(streamed_data) == len(test_data)
# Verify the messages can be deserialized back to original data
for i, message in enumerate(streamed_data):
deserialized_interaction = bytes_to_python_object(message.data)
assert deserialized_interaction == test_interactions[i]
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#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import socket
import threading
import time
import pytest
import torch
from torch.multiprocessing import Event, Queue
from lerobot.common.policies.sac.configuration_sac import SACConfig
from lerobot.common.utils.transition import Transition
from lerobot.configs.train import TrainRLServerPipelineConfig
from tests.utils import require_package
def create_test_transitions(count: int = 3) -> list[Transition]:
"""Create test transitions for integration testing."""
transitions = []
for i in range(count):
transition = Transition(
state={"observation": torch.randn(3, 64, 64), "state": torch.randn(10)},
action=torch.randn(5),
reward=torch.tensor(1.0 + i),
done=torch.tensor(i == count - 1), # Last transition is done
truncated=torch.tensor(False),
next_state={"observation": torch.randn(3, 64, 64), "state": torch.randn(10)},
complementary_info={"step": torch.tensor(i), "episode_id": i // 2},
)
transitions.append(transition)
return transitions
def create_test_interactions(count: int = 3) -> list[dict]:
"""Create test interactions for integration testing."""
interactions = []
for i in range(count):
interaction = {
"episode_reward": 10.0 + i * 5,
"step": i * 100,
"policy_fps": 30.0 + i,
"intervention_rate": 0.1 * i,
"episode_length": 200 + i * 50,
}
interactions.append(interaction)
return interactions
def find_free_port():
"""Finds a free port on the local machine."""
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.bind(("", 0)) # Bind to port 0 to let the OS choose a free port
s.listen(1)
port = s.getsockname()[1]
return port
@pytest.fixture
def cfg():
cfg = TrainRLServerPipelineConfig()
port = find_free_port()
policy_cfg = SACConfig()
policy_cfg.actor_learner_config.learner_host = "127.0.0.1"
policy_cfg.actor_learner_config.learner_port = port
policy_cfg.concurrency.actor = "threads"
policy_cfg.concurrency.learner = "threads"
policy_cfg.actor_learner_config.queue_get_timeout = 0.1
cfg.policy = policy_cfg
return cfg
@require_package("grpc")
@pytest.mark.timeout(10) # force cross-platform watchdog
def test_end_to_end_transitions_flow(cfg):
from lerobot.common.transport.utils import bytes_to_transitions
from lerobot.scripts.rl.actor import (
establish_learner_connection,
learner_service_client,
push_transitions_to_transport_queue,
send_transitions,
)
from lerobot.scripts.rl.learner import start_learner
from tests.transport.test_transport_utils import assert_transitions_equal
"""Test complete transitions flow from actor to learner."""
transitions_actor_queue = Queue()
transitions_learner_queue = Queue()
interactions_queue = Queue()
parameters_queue = Queue()
shutdown_event = Event()
learner_thread = threading.Thread(
target=start_learner,
args=(parameters_queue, transitions_learner_queue, interactions_queue, shutdown_event, cfg),
)
learner_thread.start()
policy_cfg = cfg.policy
learner_client, channel = learner_service_client(
host=policy_cfg.actor_learner_config.learner_host, port=policy_cfg.actor_learner_config.learner_port
)
assert establish_learner_connection(learner_client, shutdown_event, attempts=5)
send_transitions_thread = threading.Thread(
target=send_transitions, args=(cfg, transitions_actor_queue, shutdown_event, learner_client, channel)
)
send_transitions_thread.start()
input_transitions = create_test_transitions(count=5)
push_transitions_to_transport_queue(input_transitions, transitions_actor_queue)
# Wait for learner to start
time.sleep(0.1)
shutdown_event.set()
# Wait for learner to receive transitions
learner_thread.join()
send_transitions_thread.join()
channel.close()
received_transitions = []
while not transitions_learner_queue.empty():
received_transitions.extend(bytes_to_transitions(transitions_learner_queue.get()))
assert len(received_transitions) == len(input_transitions)
for i, transition in enumerate(received_transitions):
assert_transitions_equal(transition, input_transitions[i])
@require_package("grpc")
@pytest.mark.timeout(10)
def test_end_to_end_interactions_flow(cfg):
from lerobot.common.transport.utils import bytes_to_python_object, python_object_to_bytes
from lerobot.scripts.rl.actor import (
establish_learner_connection,
learner_service_client,
send_interactions,
)
from lerobot.scripts.rl.learner import start_learner
"""Test complete interactions flow from actor to learner."""
# Queues for actor-learner communication
interactions_actor_queue = Queue()
interactions_learner_queue = Queue()
# Other queues required by the learner
parameters_queue = Queue()
transitions_learner_queue = Queue()
shutdown_event = Event()
# Start the learner in a separate thread
learner_thread = threading.Thread(
target=start_learner,
args=(parameters_queue, transitions_learner_queue, interactions_learner_queue, shutdown_event, cfg),
)
learner_thread.start()
# Establish connection from actor to learner
policy_cfg = cfg.policy
learner_client, channel = learner_service_client(
host=policy_cfg.actor_learner_config.learner_host, port=policy_cfg.actor_learner_config.learner_port
)
assert establish_learner_connection(learner_client, shutdown_event, attempts=5)
# Start the actor's interaction sending process in a separate thread
send_interactions_thread = threading.Thread(
target=send_interactions,
args=(cfg, interactions_actor_queue, shutdown_event, learner_client, channel),
)
send_interactions_thread.start()
# Create and push test interactions to the actor's queue
input_interactions = create_test_interactions(count=5)
for interaction in input_interactions:
interactions_actor_queue.put(python_object_to_bytes(interaction))
# Wait for the communication to happen
time.sleep(0.1)
# Signal shutdown and wait for threads to complete
shutdown_event.set()
learner_thread.join()
send_interactions_thread.join()
channel.close()
# Verify that the learner received the interactions
received_interactions = []
while not interactions_learner_queue.empty():
received_interactions.append(bytes_to_python_object(interactions_learner_queue.get()))
assert len(received_interactions) == len(input_interactions)
# Sort by a unique key to handle potential reordering in queues
received_interactions.sort(key=lambda x: x["step"])
input_interactions.sort(key=lambda x: x["step"])
for received, expected in zip(received_interactions, input_interactions, strict=False):
assert received == expected
@require_package("grpc")
@pytest.mark.parametrize("data_size", ["small", "large"])
@pytest.mark.timeout(10)
def test_end_to_end_parameters_flow(cfg, data_size):
from lerobot.common.transport.utils import bytes_to_state_dict, state_to_bytes
from lerobot.scripts.rl.actor import establish_learner_connection, learner_service_client, receive_policy
from lerobot.scripts.rl.learner import start_learner
"""Test complete parameter flow from learner to actor, with small and large data."""
# Actor's local queue to receive params
parameters_actor_queue = Queue()
# Learner's queue to send params from
parameters_learner_queue = Queue()
# Other queues required by the learner
transitions_learner_queue = Queue()
interactions_learner_queue = Queue()
shutdown_event = Event()
# Start the learner in a separate thread
learner_thread = threading.Thread(
target=start_learner,
args=(
parameters_learner_queue,
transitions_learner_queue,
interactions_learner_queue,
shutdown_event,
cfg,
),
)
learner_thread.start()
# Establish connection from actor to learner
policy_cfg = cfg.policy
learner_client, channel = learner_service_client(
host=policy_cfg.actor_learner_config.learner_host, port=policy_cfg.actor_learner_config.learner_port
)
assert establish_learner_connection(learner_client, shutdown_event, attempts=5)
# Start the actor's parameter receiving process in a separate thread
receive_params_thread = threading.Thread(
target=receive_policy,
args=(cfg, parameters_actor_queue, shutdown_event, learner_client, channel),
)
receive_params_thread.start()
# Create test parameters based on parametrization
if data_size == "small":
input_params = {"layer.weight": torch.randn(128, 64)}
else: # "large"
# CHUNK_SIZE is 2MB, so this tensor (4MB) will force chunking
input_params = {"large_layer.weight": torch.randn(1024, 1024)}
# Simulate learner having new parameters to send
parameters_learner_queue.put(state_to_bytes(input_params))
# Wait for the actor to receive the parameters
time.sleep(0.1)
# Signal shutdown and wait for threads to complete
shutdown_event.set()
learner_thread.join()
receive_params_thread.join()
channel.close()
# Verify that the actor received the parameters correctly
received_params = bytes_to_state_dict(parameters_actor_queue.get())
assert received_params.keys() == input_params.keys()
for key in input_params:
assert torch.allclose(received_params[key], input_params[key])
+374
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@@ -0,0 +1,374 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import threading
import time
from concurrent import futures
from multiprocessing import Event, Queue
import pytest
from tests.utils import require_package # our gRPC servicer class
@pytest.fixture(scope="function")
def learner_service_stub():
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 1
client, channel, server = create_learner_service_stub(
shutdown_event, parameters_queue, transitions_queue, interactions_queue, seconds_between_pushes
)
yield client # provide the stub to the test function
close_learner_service_stub(channel, server)
@require_package("grpc")
def create_learner_service_stub(
shutdown_event: Event,
parameters_queue: Queue,
transitions_queue: Queue,
interactions_queue: Queue,
seconds_between_pushes: int,
queue_get_timeout: float = 0.1,
):
import grpc
from lerobot.common.transport import services_pb2_grpc # generated from .proto
from lerobot.scripts.rl.learner_service import LearnerService
"""Fixture to start a LearnerService gRPC server and provide a connected stub."""
servicer = LearnerService(
shutdown_event=shutdown_event,
parameters_queue=parameters_queue,
seconds_between_pushes=seconds_between_pushes,
transition_queue=transitions_queue,
interaction_message_queue=interactions_queue,
queue_get_timeout=queue_get_timeout,
)
# Create a gRPC server and add our servicer to it.
server = grpc.server(futures.ThreadPoolExecutor(max_workers=4))
services_pb2_grpc.add_LearnerServiceServicer_to_server(servicer, server)
port = server.add_insecure_port("[::]:0") # bind to a free port chosen by OS
server.start() # start the server (non-blocking call):contentReference[oaicite:1]{index=1}
# Create a client channel and stub connected to the server's port.
channel = grpc.insecure_channel(f"localhost:{port}")
return services_pb2_grpc.LearnerServiceStub(channel), channel, server
@require_package("grpc")
def close_learner_service_stub(channel, server):
channel.close()
server.stop(None)
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_ready_method(learner_service_stub):
from lerobot.common.transport import services_pb2
"""Test the ready method of the UserService."""
request = services_pb2.Empty()
response = learner_service_stub.Ready(request)
assert response == services_pb2.Empty()
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_send_interactions():
from lerobot.common.transport import services_pb2
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 1
client, channel, server = create_learner_service_stub(
shutdown_event, parameters_queue, transitions_queue, interactions_queue, seconds_between_pushes
)
list_of_interaction_messages = [
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_BEGIN, data=b"1"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE, data=b"2"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_END, data=b"3"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_END, data=b"4"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_END, data=b"5"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_BEGIN, data=b"6"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE, data=b"7"),
services_pb2.InteractionMessage(transfer_state=services_pb2.TransferState.TRANSFER_END, data=b"8"),
]
def mock_intercations_stream():
yield from list_of_interaction_messages
return services_pb2.Empty()
response = client.SendInteractions(mock_intercations_stream())
assert response == services_pb2.Empty()
close_learner_service_stub(channel, server)
# Extract the data from the interactions queue
interactions = []
while not interactions_queue.empty():
interactions.append(interactions_queue.get())
assert interactions == [b"123", b"4", b"5", b"678"]
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_send_transitions():
from lerobot.common.transport import services_pb2
"""Test the SendTransitions method with various transition data."""
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 1
client, channel, server = create_learner_service_stub(
shutdown_event, parameters_queue, transitions_queue, interactions_queue, seconds_between_pushes
)
# Create test transition messages
list_of_transition_messages = [
services_pb2.Transition(
transfer_state=services_pb2.TransferState.TRANSFER_BEGIN, data=b"transition_1"
),
services_pb2.Transition(
transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE, data=b"transition_2"
),
services_pb2.Transition(transfer_state=services_pb2.TransferState.TRANSFER_END, data=b"transition_3"),
services_pb2.Transition(transfer_state=services_pb2.TransferState.TRANSFER_BEGIN, data=b"batch_1"),
services_pb2.Transition(transfer_state=services_pb2.TransferState.TRANSFER_END, data=b"batch_2"),
]
def mock_transitions_stream():
yield from list_of_transition_messages
response = client.SendTransitions(mock_transitions_stream())
assert response == services_pb2.Empty()
close_learner_service_stub(channel, server)
# Extract the data from the transitions queue
transitions = []
while not transitions_queue.empty():
transitions.append(transitions_queue.get())
# Should have assembled the chunked data
assert transitions == [b"transition_1transition_2transition_3", b"batch_1batch_2"]
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_send_transitions_empty_stream():
from lerobot.common.transport import services_pb2
"""Test SendTransitions with empty stream."""
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 1
client, channel, server = create_learner_service_stub(
shutdown_event, parameters_queue, transitions_queue, interactions_queue, seconds_between_pushes
)
def empty_stream():
return iter([])
response = client.SendTransitions(empty_stream())
assert response == services_pb2.Empty()
close_learner_service_stub(channel, server)
# Queue should remain empty
assert transitions_queue.empty()
@require_package("grpc")
@pytest.mark.timeout(10) # force cross-platform watchdog
def test_stream_parameters():
import time
from lerobot.common.transport import services_pb2
"""Test the StreamParameters method."""
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 0.2 # Short delay for testing
client, channel, server = create_learner_service_stub(
shutdown_event, parameters_queue, transitions_queue, interactions_queue, seconds_between_pushes
)
# Add test parameters to the queue
test_params = [b"param_batch_1", b"param_batch_2"]
for param in test_params:
parameters_queue.put(param)
# Start streaming parameters
request = services_pb2.Empty()
stream = client.StreamParameters(request)
# Collect streamed parameters and timestamps
received_params = []
timestamps = []
for response in stream:
received_params.append(response.data)
timestamps.append(time.time())
# We should receive one last item
break
parameters_queue.put(b"param_batch_3")
for response in stream:
received_params.append(response.data)
timestamps.append(time.time())
# We should receive only one item
break
shutdown_event.set()
close_learner_service_stub(channel, server)
assert received_params == [b"param_batch_2", b"param_batch_3"]
# Check the time difference between the two sends
time_diff = timestamps[1] - timestamps[0]
# Check if the time difference is close to the expected push frequency
assert time_diff == pytest.approx(seconds_between_pushes, abs=0.1)
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_stream_parameters_with_shutdown():
from lerobot.common.transport import services_pb2
"""Test StreamParameters handles shutdown gracefully."""
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 0.1
queue_get_timeout = 0.001
client, channel, server = create_learner_service_stub(
shutdown_event,
parameters_queue,
transitions_queue,
interactions_queue,
seconds_between_pushes,
queue_get_timeout=queue_get_timeout,
)
test_params = [b"param_batch_1", b"stop", b"param_batch_3", b"param_batch_4"]
# create a thread that will put the parameters in the queue
def producer():
for param in test_params:
parameters_queue.put(param)
time.sleep(0.1)
producer_thread = threading.Thread(target=producer)
producer_thread.start()
# Start streaming
request = services_pb2.Empty()
stream = client.StreamParameters(request)
# Collect streamed parameters
received_params = []
for response in stream:
received_params.append(response.data)
if response.data == b"stop":
shutdown_event.set()
producer_thread.join()
close_learner_service_stub(channel, server)
assert received_params == [b"param_batch_1", b"stop"]
@require_package("grpc")
@pytest.mark.timeout(3) # force cross-platform watchdog
def test_stream_parameters_waits_and_retries_on_empty_queue():
import threading
import time
from lerobot.common.transport import services_pb2
"""Test that StreamParameters waits and retries when the queue is empty."""
shutdown_event = Event()
parameters_queue = Queue()
transitions_queue = Queue()
interactions_queue = Queue()
seconds_between_pushes = 0.05
queue_get_timeout = 0.01
client, channel, server = create_learner_service_stub(
shutdown_event,
parameters_queue,
transitions_queue,
interactions_queue,
seconds_between_pushes,
queue_get_timeout=queue_get_timeout,
)
request = services_pb2.Empty()
stream = client.StreamParameters(request)
received_params = []
def producer():
# Let the consumer start and find an empty queue.
# It will wait `seconds_between_pushes` (0.05s), then `get` will timeout after `queue_get_timeout` (0.01s).
# Total time for the first empty loop is > 0.06s. We wait a bit longer to be safe.
time.sleep(0.06)
parameters_queue.put(b"param_after_wait")
time.sleep(0.05)
parameters_queue.put(b"param_after_wait_2")
producer_thread = threading.Thread(target=producer)
producer_thread.start()
# The consumer will block here until the producer sends an item.
for response in stream:
received_params.append(response.data)
if response.data == b"param_after_wait_2":
break # We only need one item for this test.
shutdown_event.set()
producer_thread.join()
close_learner_service_stub(channel, server)
assert received_params == [b"param_after_wait", b"param_after_wait_2"]
-144
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@@ -1,144 +0,0 @@
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Tests for physical robots and their mocked versions.
If the physical robots are not connected to the computer, or not working,
the test will be skipped.
Example of running a specific test:
```bash
pytest -sx tests/test_robots.py::test_robot
```
Example of running test on real robots connected to the computer:
```bash
pytest -sx 'tests/test_robots.py::test_robot[koch-False]'
pytest -sx 'tests/test_robots.py::test_robot[koch_bimanual-False]'
pytest -sx 'tests/test_robots.py::test_robot[aloha-False]'
```
Example of running test on a mocked version of robots:
```bash
pytest -sx 'tests/test_robots.py::test_robot[koch-True]'
pytest -sx 'tests/test_robots.py::test_robot[koch_bimanual-True]'
pytest -sx 'tests/test_robots.py::test_robot[aloha-True]'
```
"""
import pytest
import torch
from lerobot.common.robot_devices.robots.utils import make_robot
from lerobot.common.robot_devices.utils import RobotDeviceAlreadyConnectedError, RobotDeviceNotConnectedError
from tests.utils import TEST_ROBOT_TYPES, mock_calibration_dir, require_robot
@pytest.mark.parametrize("robot_type, mock", TEST_ROBOT_TYPES)
@require_robot
def test_robot(tmp_path, request, robot_type, mock):
# TODO(rcadene): measure fps in nightly?
# TODO(rcadene): test logs
# TODO(rcadene): add compatibility with other robots
robot_kwargs = {"robot_type": robot_type, "mock": mock}
if robot_type == "aloha" and mock:
# To simplify unit test, we do not rerun manual calibration for Aloha mock=True.
# Instead, we use the files from '.cache/calibration/aloha_default'
pass
else:
if mock:
request.getfixturevalue("patch_builtins_input")
# Create an empty calibration directory to trigger manual calibration
calibration_dir = tmp_path / robot_type
mock_calibration_dir(calibration_dir)
robot_kwargs["calibration_dir"] = calibration_dir
# Test using robot before connecting raises an error
robot = make_robot(**robot_kwargs)
with pytest.raises(RobotDeviceNotConnectedError):
robot.teleop_step()
with pytest.raises(RobotDeviceNotConnectedError):
robot.teleop_step(record_data=True)
with pytest.raises(RobotDeviceNotConnectedError):
robot.capture_observation()
with pytest.raises(RobotDeviceNotConnectedError):
robot.send_action(None)
with pytest.raises(RobotDeviceNotConnectedError):
robot.disconnect()
# Test deleting the object without connecting first
del robot
# Test connecting (triggers manual calibration)
robot = make_robot(**robot_kwargs)
robot.connect()
assert robot.is_connected
# Test connecting twice raises an error
with pytest.raises(RobotDeviceAlreadyConnectedError):
robot.connect()
# TODO(rcadene, aliberts): Test disconnecting with `__del__` instead of `disconnect`
# del robot
robot.disconnect()
# Test teleop can run
robot = make_robot(**robot_kwargs)
robot.connect()
robot.teleop_step()
# Test data recorded during teleop are well formatted
observation, action = robot.teleop_step(record_data=True)
# State
assert "observation.state" in observation
assert isinstance(observation["observation.state"], torch.Tensor)
assert observation["observation.state"].ndim == 1
dim_state = sum(len(robot.follower_arms[name].motors) for name in robot.follower_arms)
assert observation["observation.state"].shape[0] == dim_state
# Cameras
for name in robot.cameras:
assert f"observation.images.{name}" in observation
assert isinstance(observation[f"observation.images.{name}"], torch.Tensor)
assert observation[f"observation.images.{name}"].ndim == 3
# Action
assert "action" in action
assert isinstance(action["action"], torch.Tensor)
assert action["action"].ndim == 1
dim_action = sum(len(robot.follower_arms[name].motors) for name in robot.follower_arms)
assert action["action"].shape[0] == dim_action
# TODO(rcadene): test if observation and action data are returned as expected
# Test capture_observation can run and observation returned are the same (since the arm didnt move)
captured_observation = robot.capture_observation()
assert set(captured_observation.keys()) == set(observation.keys())
for name in captured_observation:
if "image" in name:
# TODO(rcadene): skipping image for now as it's challenging to assess equality between two consecutive frames
continue
torch.testing.assert_close(captured_observation[name], observation[name], rtol=1e-4, atol=1)
assert captured_observation[name].shape == observation[name].shape
# Test send_action can run
robot.send_action(action["action"])
# Test disconnecting
robot.disconnect()
assert not robot.is_connected
for name in robot.follower_arms:
assert not robot.follower_arms[name].is_connected
for name in robot.leader_arms:
assert not robot.leader_arms[name].is_connected
for name in robot.cameras:
assert not robot.cameras[name].is_connected
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from contextlib import contextmanager
from unittest.mock import MagicMock, patch
import pytest
from lerobot.common.robots.so100_follower import (
SO100Follower,
SO100FollowerConfig,
)
def _make_bus_mock() -> MagicMock:
"""Return a bus mock with just the attributes used by the robot."""
bus = MagicMock(name="FeetechBusMock")
bus.is_connected = False
def _connect():
bus.is_connected = True
def _disconnect(_disable=True):
bus.is_connected = False
bus.connect.side_effect = _connect
bus.disconnect.side_effect = _disconnect
@contextmanager
def _dummy_cm():
yield
bus.torque_disabled.side_effect = _dummy_cm
return bus
@pytest.fixture
def follower():
bus_mock = _make_bus_mock()
def _bus_side_effect(*_args, **kwargs):
bus_mock.motors = kwargs["motors"]
motors_order: list[str] = list(bus_mock.motors)
bus_mock.sync_read.return_value = {motor: idx for idx, motor in enumerate(motors_order, 1)}
bus_mock.sync_write.return_value = None
bus_mock.write.return_value = None
bus_mock.disable_torque.return_value = None
bus_mock.enable_torque.return_value = None
bus_mock.is_calibrated = True
return bus_mock
with (
patch(
"lerobot.common.robots.so100_follower.so100_follower.FeetechMotorsBus",
side_effect=_bus_side_effect,
),
patch.object(SO100Follower, "configure", lambda self: None),
):
cfg = SO100FollowerConfig(port="/dev/null")
robot = SO100Follower(cfg)
yield robot
if robot.is_connected:
robot.disconnect()
def test_connect_disconnect(follower):
assert not follower.is_connected
follower.connect()
assert follower.is_connected
follower.disconnect()
assert not follower.is_connected
def test_get_observation(follower):
follower.connect()
obs = follower.get_observation()
expected_keys = {f"{m}.pos" for m in follower.bus.motors}
assert set(obs.keys()) == expected_keys
for idx, motor in enumerate(follower.bus.motors, 1):
assert obs[f"{motor}.pos"] == idx
def test_send_action(follower):
follower.connect()
action = {f"{m}.pos": i * 10 for i, m in enumerate(follower.bus.motors, 1)}
returned = follower.send_action(action)
assert returned == action
goal_pos = {m: (i + 1) * 10 for i, m in enumerate(follower.bus.motors)}
follower.bus.sync_write.assert_called_once_with("Goal_Position", goal_pos)
+1 -6
View File
@@ -45,12 +45,7 @@ def test_available_policies():
This test verifies that the class attribute `name` for all policies is
consistent with those listed in `lerobot/__init__.py`.
"""
policy_classes = [
ACTPolicy,
DiffusionPolicy,
TDMPCPolicy,
VQBeTPolicy,
]
policy_classes = [ACTPolicy, DiffusionPolicy, TDMPCPolicy, VQBeTPolicy]
policies = [pol_cls.name for pol_cls in policy_classes]
assert set(policies) == set(lerobot.available_policies), policies
+571
View File
@@ -0,0 +1,571 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import io
from multiprocessing import Event, Queue
from pickle import UnpicklingError
import pytest
import torch
from lerobot.common.utils.transition import Transition
from tests.utils import require_cuda, require_package
@require_package("grpc")
def test_bytes_buffer_size_empty_buffer():
from lerobot.common.transport.utils import bytes_buffer_size
"""Test with an empty buffer."""
buffer = io.BytesIO()
assert bytes_buffer_size(buffer) == 0
# Ensure position is reset to beginning
assert buffer.tell() == 0
@require_package("grpc")
def test_bytes_buffer_size_small_buffer():
from lerobot.common.transport.utils import bytes_buffer_size
"""Test with a small buffer."""
buffer = io.BytesIO(b"Hello, World!")
assert bytes_buffer_size(buffer) == 13
assert buffer.tell() == 0
@require_package("grpc")
def test_bytes_buffer_size_large_buffer():
from lerobot.common.transport.utils import CHUNK_SIZE, bytes_buffer_size
"""Test with a large buffer."""
data = b"x" * (CHUNK_SIZE * 2 + 1000)
buffer = io.BytesIO(data)
assert bytes_buffer_size(buffer) == len(data)
assert buffer.tell() == 0
@require_package("grpc")
def test_send_bytes_in_chunks_empty_data():
from lerobot.common.transport.utils import send_bytes_in_chunks, services_pb2
"""Test sending empty data."""
message_class = services_pb2.InteractionMessage
chunks = list(send_bytes_in_chunks(b"", message_class))
assert len(chunks) == 0
@require_package("grpc")
def test_single_chunk_small_data():
from lerobot.common.transport.utils import send_bytes_in_chunks, services_pb2
"""Test data that fits in a single chunk."""
data = b"Some data"
message_class = services_pb2.InteractionMessage
chunks = list(send_bytes_in_chunks(data, message_class))
assert len(chunks) == 1
assert chunks[0].data == b"Some data"
assert chunks[0].transfer_state == services_pb2.TransferState.TRANSFER_END
@require_package("grpc")
def test_not_silent_mode():
from lerobot.common.transport.utils import send_bytes_in_chunks, services_pb2
"""Test not silent mode."""
data = b"Some data"
message_class = services_pb2.InteractionMessage
chunks = list(send_bytes_in_chunks(data, message_class, silent=False))
assert len(chunks) == 1
assert chunks[0].data == b"Some data"
@require_package("grpc")
def test_send_bytes_in_chunks_large_data():
from lerobot.common.transport.utils import CHUNK_SIZE, send_bytes_in_chunks, services_pb2
"""Test sending large data."""
data = b"x" * (CHUNK_SIZE * 2 + 1000)
message_class = services_pb2.InteractionMessage
chunks = list(send_bytes_in_chunks(data, message_class))
assert len(chunks) == 3
assert chunks[0].data == b"x" * CHUNK_SIZE
assert chunks[0].transfer_state == services_pb2.TransferState.TRANSFER_BEGIN
assert chunks[1].data == b"x" * CHUNK_SIZE
assert chunks[1].transfer_state == services_pb2.TransferState.TRANSFER_MIDDLE
assert chunks[2].data == b"x" * 1000
assert chunks[2].transfer_state == services_pb2.TransferState.TRANSFER_END
@require_package("grpc")
def test_send_bytes_in_chunks_large_data_with_exact_chunk_size():
from lerobot.common.transport.utils import CHUNK_SIZE, send_bytes_in_chunks, services_pb2
"""Test sending large data with exact chunk size."""
data = b"x" * CHUNK_SIZE
message_class = services_pb2.InteractionMessage
chunks = list(send_bytes_in_chunks(data, message_class))
assert len(chunks) == 1
assert chunks[0].data == data
assert chunks[0].transfer_state == services_pb2.TransferState.TRANSFER_END
@require_package("grpc")
def test_receive_bytes_in_chunks_empty_data():
from lerobot.common.transport.utils import receive_bytes_in_chunks
"""Test receiving empty data."""
queue = Queue()
shutdown_event = Event()
# Empty iterator
receive_bytes_in_chunks(iter([]), queue, shutdown_event)
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_single_chunk():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test receiving a single chunk message."""
queue = Queue()
shutdown_event = Event()
data = b"Single chunk data"
chunks = [
services_pb2.InteractionMessage(data=data, transfer_state=services_pb2.TransferState.TRANSFER_END)
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
assert queue.get(timeout=0.01) == data
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_single_not_end_chunk():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test receiving a single chunk message."""
queue = Queue()
shutdown_event = Event()
data = b"Single chunk data"
chunks = [
services_pb2.InteractionMessage(data=data, transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE)
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_multiple_chunks():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test receiving a multi-chunk message."""
queue = Queue()
shutdown_event = Event()
chunks = [
services_pb2.InteractionMessage(
data=b"First ", transfer_state=services_pb2.TransferState.TRANSFER_BEGIN
),
services_pb2.InteractionMessage(
data=b"Middle ", transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE
),
services_pb2.InteractionMessage(data=b"Last", transfer_state=services_pb2.TransferState.TRANSFER_END),
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
assert queue.get(timeout=0.01) == b"First Middle Last"
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_multiple_messages():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test receiving multiple complete messages in sequence."""
queue = Queue()
shutdown_event = Event()
chunks = [
# First message - single chunk
services_pb2.InteractionMessage(
data=b"Message1", transfer_state=services_pb2.TransferState.TRANSFER_END
),
# Second message - multi chunk
services_pb2.InteractionMessage(
data=b"Start2 ", transfer_state=services_pb2.TransferState.TRANSFER_BEGIN
),
services_pb2.InteractionMessage(
data=b"Middle2 ", transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE
),
services_pb2.InteractionMessage(data=b"End2", transfer_state=services_pb2.TransferState.TRANSFER_END),
# Third message - single chunk
services_pb2.InteractionMessage(
data=b"Message3", transfer_state=services_pb2.TransferState.TRANSFER_END
),
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
# Should have three messages in queue
assert queue.get(timeout=0.01) == b"Message1"
assert queue.get(timeout=0.01) == b"Start2 Middle2 End2"
assert queue.get(timeout=0.01) == b"Message3"
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_shutdown_during_receive():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test that shutdown event stops receiving mid-stream."""
queue = Queue()
shutdown_event = Event()
shutdown_event.set()
chunks = [
services_pb2.InteractionMessage(
data=b"First ", transfer_state=services_pb2.TransferState.TRANSFER_BEGIN
),
services_pb2.InteractionMessage(
data=b"Middle ", transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE
),
services_pb2.InteractionMessage(data=b"Last", transfer_state=services_pb2.TransferState.TRANSFER_END),
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_only_begin_chunk():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test receiving only a BEGIN chunk without END."""
queue = Queue()
shutdown_event = Event()
chunks = [
services_pb2.InteractionMessage(
data=b"Start", transfer_state=services_pb2.TransferState.TRANSFER_BEGIN
),
# No END chunk
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
assert queue.empty()
@require_package("grpc")
def test_receive_bytes_in_chunks_missing_begin():
from lerobot.common.transport.utils import receive_bytes_in_chunks, services_pb2
"""Test receiving chunks starting with MIDDLE instead of BEGIN."""
queue = Queue()
shutdown_event = Event()
chunks = [
# Missing BEGIN
services_pb2.InteractionMessage(
data=b"Middle", transfer_state=services_pb2.TransferState.TRANSFER_MIDDLE
),
services_pb2.InteractionMessage(data=b"End", transfer_state=services_pb2.TransferState.TRANSFER_END),
]
receive_bytes_in_chunks(iter(chunks), queue, shutdown_event)
# The implementation continues from where it is, so we should get partial data
assert queue.get(timeout=0.01) == b"MiddleEnd"
assert queue.empty()
# Tests for state_to_bytes and bytes_to_state_dict
@require_package("grpc")
def test_state_to_bytes_empty_dict():
from lerobot.common.transport.utils import bytes_to_state_dict, state_to_bytes
"""Test converting empty state dict to bytes."""
state_dict = {}
data = state_to_bytes(state_dict)
reconstructed = bytes_to_state_dict(data)
assert reconstructed == state_dict
@require_package("grpc")
def test_bytes_to_state_dict_empty_data():
from lerobot.common.transport.utils import bytes_to_state_dict
"""Test converting empty data to state dict."""
with pytest.raises(EOFError):
bytes_to_state_dict(b"")
@require_package("grpc")
def test_state_to_bytes_simple_dict():
from lerobot.common.transport.utils import bytes_to_state_dict, state_to_bytes
"""Test converting simple state dict to bytes."""
state_dict = {
"layer1.weight": torch.randn(10, 5),
"layer1.bias": torch.randn(10),
"layer2.weight": torch.randn(1, 10),
"layer2.bias": torch.randn(1),
}
data = state_to_bytes(state_dict)
assert isinstance(data, bytes)
assert len(data) > 0
reconstructed = bytes_to_state_dict(data)
assert len(reconstructed) == len(state_dict)
for key in state_dict:
assert key in reconstructed
assert torch.allclose(state_dict[key], reconstructed[key])
@require_package("grpc")
def test_state_to_bytes_various_dtypes():
from lerobot.common.transport.utils import bytes_to_state_dict, state_to_bytes
"""Test converting state dict with various tensor dtypes."""
state_dict = {
"float32": torch.randn(5, 5),
"float64": torch.randn(3, 3).double(),
"int32": torch.randint(0, 100, (4, 4), dtype=torch.int32),
"int64": torch.randint(0, 100, (2, 2), dtype=torch.int64),
"bool": torch.tensor([True, False, True]),
"uint8": torch.randint(0, 255, (3, 3), dtype=torch.uint8),
}
data = state_to_bytes(state_dict)
reconstructed = bytes_to_state_dict(data)
for key in state_dict:
assert reconstructed[key].dtype == state_dict[key].dtype
if state_dict[key].dtype == torch.bool:
assert torch.equal(state_dict[key], reconstructed[key])
else:
assert torch.allclose(state_dict[key], reconstructed[key])
@require_package("grpc")
def test_bytes_to_state_dict_invalid_data():
from lerobot.common.transport.utils import bytes_to_state_dict
"""Test bytes_to_state_dict with invalid data."""
with pytest.raises(UnpicklingError):
bytes_to_state_dict(b"This is not a valid torch save file")
@require_cuda
@require_package("grpc")
def test_state_to_bytes_various_dtypes_cuda():
from lerobot.common.transport.utils import bytes_to_state_dict, state_to_bytes
"""Test converting state dict with various tensor dtypes."""
state_dict = {
"float32": torch.randn(5, 5).cuda(),
"float64": torch.randn(3, 3).double().cuda(),
"int32": torch.randint(0, 100, (4, 4), dtype=torch.int32).cuda(),
"int64": torch.randint(0, 100, (2, 2), dtype=torch.int64).cuda(),
"bool": torch.tensor([True, False, True]),
"uint8": torch.randint(0, 255, (3, 3), dtype=torch.uint8),
}
data = state_to_bytes(state_dict)
reconstructed = bytes_to_state_dict(data)
for key in state_dict:
assert reconstructed[key].dtype == state_dict[key].dtype
if state_dict[key].dtype == torch.bool:
assert torch.equal(state_dict[key], reconstructed[key])
else:
assert torch.allclose(state_dict[key], reconstructed[key])
@require_package("grpc")
def test_python_object_to_bytes_none():
from lerobot.common.transport.utils import bytes_to_python_object, python_object_to_bytes
"""Test converting None to bytes."""
obj = None
data = python_object_to_bytes(obj)
reconstructed = bytes_to_python_object(data)
assert reconstructed is None
@pytest.mark.parametrize(
"obj",
[
42,
-123,
3.14159,
-2.71828,
"Hello, World!",
"Unicode: 你好世界 🌍",
True,
False,
b"byte string",
[],
[1, 2, 3],
[1, "two", 3.0, True, None],
{},
{"key": "value", "number": 123, "nested": {"a": 1}},
(),
(1, 2, 3),
],
)
@require_package("grpc")
def test_python_object_to_bytes_simple_types(obj):
from lerobot.common.transport.utils import bytes_to_python_object, python_object_to_bytes
"""Test converting simple Python types."""
data = python_object_to_bytes(obj)
reconstructed = bytes_to_python_object(data)
assert reconstructed == obj
assert type(reconstructed) is type(obj)
@require_package("grpc")
def test_python_object_to_bytes_with_tensors():
from lerobot.common.transport.utils import bytes_to_python_object, python_object_to_bytes
"""Test converting objects containing PyTorch tensors."""
obj = {
"tensor": torch.randn(5, 5),
"list_with_tensor": [1, 2, torch.randn(3, 3), "string"],
"nested": {
"tensor1": torch.randn(2, 2),
"tensor2": torch.tensor([1, 2, 3]),
},
}
data = python_object_to_bytes(obj)
reconstructed = bytes_to_python_object(data)
assert torch.allclose(obj["tensor"], reconstructed["tensor"])
assert reconstructed["list_with_tensor"][0] == 1
assert reconstructed["list_with_tensor"][3] == "string"
assert torch.allclose(obj["list_with_tensor"][2], reconstructed["list_with_tensor"][2])
assert torch.allclose(obj["nested"]["tensor1"], reconstructed["nested"]["tensor1"])
assert torch.equal(obj["nested"]["tensor2"], reconstructed["nested"]["tensor2"])
@require_package("grpc")
def test_transitions_to_bytes_empty_list():
from lerobot.common.transport.utils import bytes_to_transitions, transitions_to_bytes
"""Test converting empty transitions list."""
transitions = []
data = transitions_to_bytes(transitions)
reconstructed = bytes_to_transitions(data)
assert reconstructed == transitions
assert isinstance(reconstructed, list)
@require_package("grpc")
def test_transitions_to_bytes_single_transition():
from lerobot.common.transport.utils import bytes_to_transitions, transitions_to_bytes
"""Test converting a single transition."""
transition = Transition(
state={"image": torch.randn(3, 64, 64), "state": torch.randn(10)},
action=torch.randn(5),
reward=torch.tensor(1.5),
done=torch.tensor(False),
next_state={"image": torch.randn(3, 64, 64), "state": torch.randn(10)},
)
transitions = [transition]
data = transitions_to_bytes(transitions)
reconstructed = bytes_to_transitions(data)
assert len(reconstructed) == 1
assert_transitions_equal(transitions[0], reconstructed[0])
@require_package("grpc")
def assert_transitions_equal(t1: Transition, t2: Transition):
"""Helper to assert two transitions are equal."""
assert_observation_equal(t1["state"], t2["state"])
assert torch.allclose(t1["action"], t2["action"])
assert torch.allclose(t1["reward"], t2["reward"])
assert torch.equal(t1["done"], t2["done"])
assert_observation_equal(t1["next_state"], t2["next_state"])
@require_package("grpc")
def assert_observation_equal(o1: dict, o2: dict):
"""Helper to assert two observations are equal."""
assert set(o1.keys()) == set(o2.keys())
for key in o1:
assert torch.allclose(o1[key], o2[key])
@require_package("grpc")
def test_transitions_to_bytes_multiple_transitions():
from lerobot.common.transport.utils import bytes_to_transitions, transitions_to_bytes
"""Test converting multiple transitions."""
transitions = []
for i in range(5):
transition = Transition(
state={"data": torch.randn(10)},
action=torch.randn(3),
reward=torch.tensor(float(i)),
done=torch.tensor(i == 4),
next_state={"data": torch.randn(10)},
)
transitions.append(transition)
data = transitions_to_bytes(transitions)
reconstructed = bytes_to_transitions(data)
assert len(reconstructed) == len(transitions)
for original, reconstructed_item in zip(transitions, reconstructed, strict=False):
assert_transitions_equal(original, reconstructed_item)
@require_package("grpc")
def test_receive_bytes_in_chunks_unknown_state():
from lerobot.common.transport.utils import receive_bytes_in_chunks
"""Test receive_bytes_in_chunks with an unknown transfer state."""
# Mock the gRPC message object, which has `transfer_state` and `data` attributes.
class MockMessage:
def __init__(self, transfer_state, data):
self.transfer_state = transfer_state
self.data = data
# 10 is not a valid TransferState enum value
bad_iterator = [MockMessage(transfer_state=10, data=b"bad_data")]
output_queue = Queue()
shutdown_event = Event()
with pytest.raises(ValueError, match="Received unknown transfer state"):
receive_bytes_in_chunks(bad_iterator, output_queue, shutdown_event)
-147
View File
@@ -13,20 +13,14 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import os
import platform
from functools import wraps
from pathlib import Path
import pytest
import torch
from lerobot import available_cameras, available_motors, available_robots
from lerobot.common.robot_devices.cameras.utils import Camera
from lerobot.common.robot_devices.cameras.utils import make_camera as make_camera_device
from lerobot.common.robot_devices.motors.utils import MotorsBus
from lerobot.common.robot_devices.motors.utils import make_motors_bus as make_motors_bus_device
from lerobot.common.utils.import_utils import is_package_available
DEVICE = os.environ.get("LEROBOT_TEST_DEVICE", "cuda") if torch.cuda.is_available() else "cpu"
@@ -188,144 +182,3 @@ def require_package(package_name):
return wrapper
return decorator
def require_robot(func):
"""
Decorator that skips the test if a robot is not available
The decorated function must have two arguments `request` and `robot_type`.
Example of usage:
```python
@pytest.mark.parametrize(
"robot_type", ["koch", "aloha"]
)
@require_robot
def test_require_robot(request, robot_type):
pass
```
"""
@wraps(func)
def wrapper(*args, **kwargs):
# Access the pytest request context to get the is_robot_available fixture
request = kwargs.get("request")
robot_type = kwargs.get("robot_type")
mock = kwargs.get("mock")
if robot_type is None:
raise ValueError("The 'robot_type' must be an argument of the test function.")
if request is None:
raise ValueError("The 'request' fixture must be an argument of the test function.")
if mock is None:
raise ValueError("The 'mock' variable must be an argument of the test function.")
# Run test with a real robot. Skip test if robot connection fails.
if not mock and not request.getfixturevalue("is_robot_available"):
pytest.skip(f"A {robot_type} robot is not available.")
return func(*args, **kwargs)
return wrapper
def require_camera(func):
@wraps(func)
def wrapper(*args, **kwargs):
# Access the pytest request context to get the is_camera_available fixture
request = kwargs.get("request")
camera_type = kwargs.get("camera_type")
mock = kwargs.get("mock")
if request is None:
raise ValueError("The 'request' fixture must be an argument of the test function.")
if camera_type is None:
raise ValueError("The 'camera_type' must be an argument of the test function.")
if mock is None:
raise ValueError("The 'mock' variable must be an argument of the test function.")
if not mock and not request.getfixturevalue("is_camera_available"):
pytest.skip(f"A {camera_type} camera is not available.")
return func(*args, **kwargs)
return wrapper
def require_motor(func):
@wraps(func)
def wrapper(*args, **kwargs):
# Access the pytest request context to get the is_motor_available fixture
request = kwargs.get("request")
motor_type = kwargs.get("motor_type")
mock = kwargs.get("mock")
if request is None:
raise ValueError("The 'request' fixture must be an argument of the test function.")
if motor_type is None:
raise ValueError("The 'motor_type' must be an argument of the test function.")
if mock is None:
raise ValueError("The 'mock' variable must be an argument of the test function.")
if not mock and not request.getfixturevalue("is_motor_available"):
pytest.skip(f"A {motor_type} motor is not available.")
return func(*args, **kwargs)
return wrapper
def mock_calibration_dir(calibration_dir):
# TODO(rcadene): remove this hack
# calibration file produced with Moss v1, but works with Koch, Koch bimanual and SO-100
example_calib = {
"homing_offset": [-1416, -845, 2130, 2872, 1950, -2211],
"drive_mode": [0, 0, 1, 1, 1, 0],
"start_pos": [1442, 843, 2166, 2849, 1988, 1835],
"end_pos": [2440, 1869, -1106, -1848, -926, 3235],
"calib_mode": ["DEGREE", "DEGREE", "DEGREE", "DEGREE", "DEGREE", "LINEAR"],
"motor_names": ["shoulder_pan", "shoulder_lift", "elbow_flex", "wrist_flex", "wrist_roll", "gripper"],
}
Path(str(calibration_dir)).mkdir(parents=True, exist_ok=True)
with open(calibration_dir / "main_follower.json", "w") as f:
json.dump(example_calib, f)
with open(calibration_dir / "main_leader.json", "w") as f:
json.dump(example_calib, f)
with open(calibration_dir / "left_follower.json", "w") as f:
json.dump(example_calib, f)
with open(calibration_dir / "left_leader.json", "w") as f:
json.dump(example_calib, f)
with open(calibration_dir / "right_follower.json", "w") as f:
json.dump(example_calib, f)
with open(calibration_dir / "right_leader.json", "w") as f:
json.dump(example_calib, f)
# TODO(rcadene, aliberts): remove this dark pattern that overrides
def make_camera(camera_type: str, **kwargs) -> Camera:
if camera_type == "opencv":
camera_index = kwargs.pop("camera_index", OPENCV_CAMERA_INDEX)
return make_camera_device(camera_type, camera_index=camera_index, **kwargs)
elif camera_type == "intelrealsense":
serial_number = kwargs.pop("serial_number", INTELREALSENSE_SERIAL_NUMBER)
return make_camera_device(camera_type, serial_number=serial_number, **kwargs)
else:
raise ValueError(f"The camera type '{camera_type}' is not valid.")
# TODO(rcadene, aliberts): remove this dark pattern that overrides
def make_motors_bus(motor_type: str, **kwargs) -> MotorsBus:
if motor_type == "dynamixel":
port = kwargs.pop("port", DYNAMIXEL_PORT)
motors = kwargs.pop("motors", DYNAMIXEL_MOTORS)
return make_motors_bus_device(motor_type, port=port, motors=motors, **kwargs)
elif motor_type == "feetech":
port = kwargs.pop("port", FEETECH_PORT)
motors = kwargs.pop("motors", FEETECH_MOTORS)
return make_motors_bus_device(motor_type, port=port, motors=motors, **kwargs)
else:
raise ValueError(f"The motor type '{motor_type}' is not valid.")
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import pytest
from lerobot.common.utils.encoding_utils import (
decode_sign_magnitude,
decode_twos_complement,
encode_sign_magnitude,
encode_twos_complement,
)
@pytest.mark.parametrize(
"value, sign_bit_index, expected",
[
(5, 4, 5),
(0, 4, 0),
(7, 3, 7),
(-1, 4, 17),
(-8, 4, 24),
(-3, 3, 11),
],
)
def test_encode_sign_magnitude(value, sign_bit_index, expected):
assert encode_sign_magnitude(value, sign_bit_index) == expected
@pytest.mark.parametrize(
"encoded, sign_bit_index, expected",
[
(5, 4, 5),
(0, 4, 0),
(7, 3, 7),
(17, 4, -1),
(24, 4, -8),
(11, 3, -3),
],
)
def test_decode_sign_magnitude(encoded, sign_bit_index, expected):
assert decode_sign_magnitude(encoded, sign_bit_index) == expected
@pytest.mark.parametrize(
"encoded, sign_bit_index",
[
(16, 4),
(-9, 3),
],
)
def test_encode_raises_on_overflow(encoded, sign_bit_index):
with pytest.raises(ValueError):
encode_sign_magnitude(encoded, sign_bit_index)
def test_encode_decode_sign_magnitude():
for sign_bit_index in range(2, 6):
max_val = (1 << sign_bit_index) - 1
for value in range(-max_val, max_val + 1):
encoded = encode_sign_magnitude(value, sign_bit_index)
decoded = decode_sign_magnitude(encoded, sign_bit_index)
assert decoded == value, f"Failed at value={value}, index={sign_bit_index}"
@pytest.mark.parametrize(
"value, n_bytes, expected",
[
(0, 1, 0),
(5, 1, 5),
(-1, 1, 255),
(-128, 1, 128),
(-2, 1, 254),
(127, 1, 127),
(0, 2, 0),
(5, 2, 5),
(-1, 2, 65_535),
(-32_768, 2, 32_768),
(-2, 2, 65_534),
(32_767, 2, 32_767),
(0, 4, 0),
(5, 4, 5),
(-1, 4, 4_294_967_295),
(-2_147_483_648, 4, 2_147_483_648),
(-2, 4, 4_294_967_294),
(2_147_483_647, 4, 2_147_483_647),
],
)
def test_encode_twos_complement(value, n_bytes, expected):
assert encode_twos_complement(value, n_bytes) == expected
@pytest.mark.parametrize(
"value, n_bytes, expected",
[
(0, 1, 0),
(5, 1, 5),
(255, 1, -1),
(128, 1, -128),
(254, 1, -2),
(127, 1, 127),
(0, 2, 0),
(5, 2, 5),
(65_535, 2, -1),
(32_768, 2, -32_768),
(65_534, 2, -2),
(32_767, 2, 32_767),
(0, 4, 0),
(5, 4, 5),
(4_294_967_295, 4, -1),
(2_147_483_648, 4, -2_147_483_648),
(4_294_967_294, 4, -2),
(2_147_483_647, 4, 2_147_483_647),
],
)
def test_decode_twos_complement(value, n_bytes, expected):
assert decode_twos_complement(value, n_bytes) == expected
@pytest.mark.parametrize(
"value, n_bytes",
[
(-129, 1),
(128, 1),
(-32_769, 2),
(32_768, 2),
(-2_147_483_649, 4),
(2_147_483_648, 4),
],
)
def test_encode_twos_complement_out_of_range(value, n_bytes):
with pytest.raises(ValueError):
encode_twos_complement(value, n_bytes)
@pytest.mark.parametrize(
"value, n_bytes",
[
(-128, 1),
(-1, 1),
(0, 1),
(1, 1),
(127, 1),
(-32_768, 2),
(-1, 2),
(0, 2),
(1, 2),
(32_767, 2),
(-2_147_483_648, 4),
(-1, 4),
(0, 4),
(1, 4),
(2_147_483_647, 4),
],
)
def test_encode_decode_twos_complement(value, n_bytes):
encoded = encode_twos_complement(value, n_bytes)
decoded = decode_twos_complement(encoded, n_bytes)
assert decoded == value, f"Failed at value={value}, n_bytes={n_bytes}"
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#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import multiprocessing
import os
import signal
import threading
from unittest.mock import patch
import pytest
from lerobot.common.utils.process import ProcessSignalHandler
# Fixture to reset shutdown_event_counter and original signal handlers before and after each test
@pytest.fixture(autouse=True)
def reset_globals_and_handlers():
# Store original signal handlers
original_handlers = {
sig: signal.getsignal(sig)
for sig in [signal.SIGINT, signal.SIGTERM, signal.SIGHUP, signal.SIGQUIT]
if hasattr(signal, sig.name)
}
yield
# Restore original signal handlers
for sig, handler in original_handlers.items():
signal.signal(sig, handler)
def test_setup_process_handlers_event_with_threads():
"""Test that setup_process_handlers returns the correct event type."""
handler = ProcessSignalHandler(use_threads=True)
shutdown_event = handler.shutdown_event
assert isinstance(shutdown_event, threading.Event), "Should be a threading.Event"
assert not shutdown_event.is_set(), "Event should initially be unset"
def test_setup_process_handlers_event_with_processes():
"""Test that setup_process_handlers returns the correct event type."""
handler = ProcessSignalHandler(use_threads=False)
shutdown_event = handler.shutdown_event
assert isinstance(shutdown_event, type(multiprocessing.Event())), "Should be a multiprocessing.Event"
assert not shutdown_event.is_set(), "Event should initially be unset"
@pytest.mark.parametrize("use_threads", [True, False])
@pytest.mark.parametrize(
"sig",
[
signal.SIGINT,
signal.SIGTERM,
# SIGHUP and SIGQUIT are not reliably available on all platforms (e.g. Windows)
pytest.param(
signal.SIGHUP,
marks=pytest.mark.skipif(not hasattr(signal, "SIGHUP"), reason="SIGHUP not available"),
),
pytest.param(
signal.SIGQUIT,
marks=pytest.mark.skipif(not hasattr(signal, "SIGQUIT"), reason="SIGQUIT not available"),
),
],
)
def test_signal_handler_sets_event(use_threads, sig):
"""Test that the signal handler sets the event on receiving a signal."""
handler = ProcessSignalHandler(use_threads=use_threads)
shutdown_event = handler.shutdown_event
assert handler.counter == 0
os.kill(os.getpid(), sig)
# In some environments, the signal might take a moment to be handled.
shutdown_event.wait(timeout=1.0)
assert shutdown_event.is_set(), f"Event should be set after receiving signal {sig}"
# Ensure the internal counter was incremented
assert handler.counter == 1
@pytest.mark.parametrize("use_threads", [True, False])
@patch("sys.exit")
def test_force_shutdown_on_second_signal(mock_sys_exit, use_threads):
"""Test that a second signal triggers a force shutdown."""
handler = ProcessSignalHandler(use_threads=use_threads)
os.kill(os.getpid(), signal.SIGINT)
# Give a moment for the first signal to be processed
import time
time.sleep(0.1)
os.kill(os.getpid(), signal.SIGINT)
time.sleep(0.1)
assert handler.counter == 2
mock_sys_exit.assert_called_once_with(1)
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#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import threading
import time
from queue import Queue
from lerobot.common.utils.queue import get_last_item_from_queue
def test_get_last_item_single_item():
"""Test getting the last item when queue has only one item."""
queue = Queue()
queue.put("single_item")
result = get_last_item_from_queue(queue)
assert result == "single_item"
assert queue.empty()
def test_get_last_item_multiple_items():
"""Test getting the last item when queue has multiple items."""
queue = Queue()
items = ["first", "second", "third", "fourth", "last"]
for item in items:
queue.put(item)
result = get_last_item_from_queue(queue)
assert result == "last"
assert queue.empty()
def test_get_last_item_different_types():
"""Test with different data types in the queue."""
queue = Queue()
items = [1, 2.5, "string", {"key": "value"}, [1, 2, 3], ("tuple", "data")]
for item in items:
queue.put(item)
result = get_last_item_from_queue(queue)
assert result == ("tuple", "data")
assert queue.empty()
def test_get_last_item_maxsize_queue():
"""Test with a queue that has a maximum size."""
queue = Queue(maxsize=5)
# Fill the queue
for i in range(5):
queue.put(i)
# Give the queue time to fill
time.sleep(0.1)
result = get_last_item_from_queue(queue)
assert result == 4
assert queue.empty()
def test_get_last_item_with_none_values():
"""Test with None values in the queue."""
queue = Queue()
items = [1, None, 2, None, 3]
for item in items:
queue.put(item)
# Give the queue time to fill
time.sleep(0.1)
result = get_last_item_from_queue(queue)
assert result == 3
assert queue.empty()
def test_get_last_item_blocking_timeout():
"""Test get_last_item_from_queue returns None on timeout."""
queue = Queue()
result = get_last_item_from_queue(queue, block=True, timeout=0.1)
assert result is None
def test_get_last_item_non_blocking_empty():
"""Test get_last_item_from_queue with block=False on an empty queue returns None."""
queue = Queue()
result = get_last_item_from_queue(queue, block=False)
assert result is None
def test_get_last_item_non_blocking_success():
"""Test get_last_item_from_queue with block=False on a non-empty queue."""
queue = Queue()
items = ["first", "second", "last"]
for item in items:
queue.put(item)
# Give the queue time to fill
time.sleep(0.1)
result = get_last_item_from_queue(queue, block=False)
assert result == "last"
assert queue.empty()
def test_get_last_item_blocking_waits_for_item():
"""Test that get_last_item_from_queue waits for an item if block=True."""
queue = Queue()
result = []
def producer():
queue.put("item1")
queue.put("item2")
def consumer():
# This will block until the producer puts the first item
item = get_last_item_from_queue(queue, block=True, timeout=0.2)
result.append(item)
producer_thread = threading.Thread(target=producer)
consumer_thread = threading.Thread(target=consumer)
producer_thread.start()
consumer_thread.start()
producer_thread.join()
consumer_thread.join()
assert result == ["item2"]
assert queue.empty()
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#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
from typing import Callable
import pytest
import torch
from lerobot.common.datasets.lerobot_dataset import LeRobotDataset
from lerobot.common.utils.buffer import BatchTransition, ReplayBuffer, random_crop_vectorized
from tests.fixtures.constants import DUMMY_REPO_ID
def state_dims() -> list[str]:
return ["observation.image", "observation.state"]
@pytest.fixture
def replay_buffer() -> ReplayBuffer:
return create_empty_replay_buffer()
def clone_state(state: dict) -> dict:
return {k: v.clone() for k, v in state.items()}
def create_empty_replay_buffer(
optimize_memory: bool = False,
use_drq: bool = False,
image_augmentation_function: Callable | None = None,
) -> ReplayBuffer:
buffer_capacity = 10
device = "cpu"
return ReplayBuffer(
buffer_capacity,
device,
state_dims(),
optimize_memory=optimize_memory,
use_drq=use_drq,
image_augmentation_function=image_augmentation_function,
)
def create_random_image() -> torch.Tensor:
return torch.rand(3, 84, 84)
def create_dummy_transition() -> dict:
return {
"observation.image": create_random_image(),
"action": torch.randn(4),
"reward": torch.tensor(1.0),
"observation.state": torch.randn(
10,
),
"done": torch.tensor(False),
"truncated": torch.tensor(False),
"complementary_info": {},
}
def create_dataset_from_replay_buffer(tmp_path) -> tuple[LeRobotDataset, ReplayBuffer]:
dummy_state_1 = create_dummy_state()
dummy_action_1 = create_dummy_action()
dummy_state_2 = create_dummy_state()
dummy_action_2 = create_dummy_action()
dummy_state_3 = create_dummy_state()
dummy_action_3 = create_dummy_action()
dummy_state_4 = create_dummy_state()
dummy_action_4 = create_dummy_action()
replay_buffer = create_empty_replay_buffer()
replay_buffer.add(dummy_state_1, dummy_action_1, 1.0, dummy_state_1, False, False)
replay_buffer.add(dummy_state_2, dummy_action_2, 1.0, dummy_state_2, False, False)
replay_buffer.add(dummy_state_3, dummy_action_3, 1.0, dummy_state_3, True, True)
replay_buffer.add(dummy_state_4, dummy_action_4, 1.0, dummy_state_4, True, True)
root = tmp_path / "test"
return (replay_buffer.to_lerobot_dataset(DUMMY_REPO_ID, root=root), replay_buffer)
def create_dummy_state() -> dict:
return {
"observation.image": create_random_image(),
"observation.state": torch.randn(
10,
),
}
def get_tensor_memory_consumption(tensor):
return tensor.nelement() * tensor.element_size()
def get_tensors_memory_consumption(obj, visited_addresses):
total_size = 0
address = id(obj)
if address in visited_addresses:
return 0
visited_addresses.add(address)
if isinstance(obj, torch.Tensor):
return get_tensor_memory_consumption(obj)
elif isinstance(obj, (list, tuple)):
for item in obj:
total_size += get_tensors_memory_consumption(item, visited_addresses)
elif isinstance(obj, dict):
for value in obj.values():
total_size += get_tensors_memory_consumption(value, visited_addresses)
elif hasattr(obj, "__dict__"):
# It's an object, we need to get the size of the attributes
for _, attr in vars(obj).items():
total_size += get_tensors_memory_consumption(attr, visited_addresses)
return total_size
def get_object_memory(obj):
# Track visited addresses to avoid infinite loops
# and cases when two properties point to the same object
visited_addresses = set()
# Get the size of the object in bytes
total_size = sys.getsizeof(obj)
# Get the size of the tensor attributes
total_size += get_tensors_memory_consumption(obj, visited_addresses)
return total_size
def create_dummy_action() -> torch.Tensor:
return torch.randn(4)
def dict_properties() -> list:
return ["state", "next_state"]
@pytest.fixture
def dummy_state() -> dict:
return create_dummy_state()
@pytest.fixture
def next_dummy_state() -> dict:
return create_dummy_state()
@pytest.fixture
def dummy_action() -> torch.Tensor:
return torch.randn(4)
def test_empty_buffer_sample_raises_error(replay_buffer):
assert len(replay_buffer) == 0, "Replay buffer should be empty."
assert replay_buffer.capacity == 10, "Replay buffer capacity should be 10."
with pytest.raises(RuntimeError, match="Cannot sample from an empty buffer"):
replay_buffer.sample(1)
def test_zero_capacity_buffer_raises_error():
with pytest.raises(ValueError, match="Capacity must be greater than 0."):
ReplayBuffer(0, "cpu", ["observation", "next_observation"])
def test_add_transition(replay_buffer, dummy_state, dummy_action):
replay_buffer.add(dummy_state, dummy_action, 1.0, dummy_state, False, False)
assert len(replay_buffer) == 1, "Replay buffer should have one transition after adding."
assert torch.equal(replay_buffer.actions[0], dummy_action), (
"Action should be equal to the first transition."
)
assert replay_buffer.rewards[0] == 1.0, "Reward should be equal to the first transition."
assert not replay_buffer.dones[0], "Done should be False for the first transition."
assert not replay_buffer.truncateds[0], "Truncated should be False for the first transition."
for dim in state_dims():
assert torch.equal(replay_buffer.states[dim][0], dummy_state[dim]), (
"Observation should be equal to the first transition."
)
assert torch.equal(replay_buffer.next_states[dim][0], dummy_state[dim]), (
"Next observation should be equal to the first transition."
)
def test_add_over_capacity():
replay_buffer = ReplayBuffer(2, "cpu", ["observation", "next_observation"])
dummy_state_1 = create_dummy_state()
dummy_action_1 = create_dummy_action()
dummy_state_2 = create_dummy_state()
dummy_action_2 = create_dummy_action()
dummy_state_3 = create_dummy_state()
dummy_action_3 = create_dummy_action()
replay_buffer.add(dummy_state_1, dummy_action_1, 1.0, dummy_state_1, False, False)
replay_buffer.add(dummy_state_2, dummy_action_2, 1.0, dummy_state_2, False, False)
replay_buffer.add(dummy_state_3, dummy_action_3, 1.0, dummy_state_3, True, True)
assert len(replay_buffer) == 2, "Replay buffer should have 2 transitions after adding 3."
for dim in state_dims():
assert torch.equal(replay_buffer.states[dim][0], dummy_state_3[dim]), (
"Observation should be equal to the first transition."
)
assert torch.equal(replay_buffer.next_states[dim][0], dummy_state_3[dim]), (
"Next observation should be equal to the first transition."
)
assert torch.equal(replay_buffer.actions[0], dummy_action_3), (
"Action should be equal to the last transition."
)
assert replay_buffer.rewards[0] == 1.0, "Reward should be equal to the last transition."
assert replay_buffer.dones[0], "Done should be True for the first transition."
assert replay_buffer.truncateds[0], "Truncated should be True for the first transition."
def test_sample_from_empty_buffer(replay_buffer):
with pytest.raises(RuntimeError, match="Cannot sample from an empty buffer"):
replay_buffer.sample(1)
def test_sample_with_1_transition(replay_buffer, dummy_state, next_dummy_state, dummy_action):
replay_buffer.add(dummy_state, dummy_action, 1.0, next_dummy_state, False, False)
got_batch_transition = replay_buffer.sample(1)
expected_batch_transition = BatchTransition(
state=clone_state(dummy_state),
action=dummy_action.clone(),
reward=1.0,
next_state=clone_state(next_dummy_state),
done=False,
truncated=False,
)
for buffer_property in dict_properties():
for k, v in expected_batch_transition[buffer_property].items():
got_state = got_batch_transition[buffer_property][k]
assert got_state.shape[0] == 1, f"{k} should have 1 transition."
assert got_state.device.type == "cpu", f"{k} should be on cpu."
assert torch.equal(got_state[0], v), f"{k} should be equal to the expected batch transition."
for key, _value in expected_batch_transition.items():
if key in dict_properties():
continue
got_value = got_batch_transition[key]
v_tensor = expected_batch_transition[key]
if not isinstance(v_tensor, torch.Tensor):
v_tensor = torch.tensor(v_tensor)
assert got_value.shape[0] == 1, f"{key} should have 1 transition."
assert got_value.device.type == "cpu", f"{key} should be on cpu."
assert torch.equal(got_value[0], v_tensor), f"{key} should be equal to the expected batch transition."
def test_sample_with_batch_bigger_than_buffer_size(
replay_buffer, dummy_state, next_dummy_state, dummy_action
):
replay_buffer.add(dummy_state, dummy_action, 1.0, next_dummy_state, False, False)
got_batch_transition = replay_buffer.sample(10)
expected_batch_transition = BatchTransition(
state=dummy_state,
action=dummy_action,
reward=1.0,
next_state=next_dummy_state,
done=False,
truncated=False,
)
for buffer_property in dict_properties():
for k in expected_batch_transition[buffer_property]:
got_state = got_batch_transition[buffer_property][k]
assert got_state.shape[0] == 1, f"{k} should have 1 transition."
for key in expected_batch_transition:
if key in dict_properties():
continue
got_value = got_batch_transition[key]
assert got_value.shape[0] == 1, f"{key} should have 1 transition."
def test_sample_batch(replay_buffer):
dummy_state_1 = create_dummy_state()
dummy_action_1 = create_dummy_action()
dummy_state_2 = create_dummy_state()
dummy_action_2 = create_dummy_action()
dummy_state_3 = create_dummy_state()
dummy_action_3 = create_dummy_action()
dummy_state_4 = create_dummy_state()
dummy_action_4 = create_dummy_action()
replay_buffer.add(dummy_state_1, dummy_action_1, 1.0, dummy_state_1, False, False)
replay_buffer.add(dummy_state_2, dummy_action_2, 2.0, dummy_state_2, False, False)
replay_buffer.add(dummy_state_3, dummy_action_3, 3.0, dummy_state_3, True, True)
replay_buffer.add(dummy_state_4, dummy_action_4, 4.0, dummy_state_4, True, True)
dummy_states = [dummy_state_1, dummy_state_2, dummy_state_3, dummy_state_4]
dummy_actions = [dummy_action_1, dummy_action_2, dummy_action_3, dummy_action_4]
got_batch_transition = replay_buffer.sample(3)
for buffer_property in dict_properties():
for k in got_batch_transition[buffer_property]:
got_state = got_batch_transition[buffer_property][k]
assert got_state.shape[0] == 3, f"{k} should have 3 transition."
for got_state_item in got_state:
assert any(torch.equal(got_state_item, dummy_state[k]) for dummy_state in dummy_states), (
f"{k} should be equal to one of the dummy states."
)
for got_action_item in got_batch_transition["action"]:
assert any(torch.equal(got_action_item, dummy_action) for dummy_action in dummy_actions), (
"Actions should be equal to the dummy actions."
)
for k in got_batch_transition:
if k in dict_properties() or k == "complementary_info":
continue
got_value = got_batch_transition[k]
assert got_value.shape[0] == 3, f"{k} should have 3 transition."
def test_to_lerobot_dataset_with_empty_buffer(replay_buffer):
with pytest.raises(ValueError, match="The replay buffer is empty. Cannot convert to a dataset."):
replay_buffer.to_lerobot_dataset("dummy_repo")
def test_to_lerobot_dataset(tmp_path):
ds, buffer = create_dataset_from_replay_buffer(tmp_path)
assert len(ds) == len(buffer), "Dataset should have the same size as the Replay Buffer"
assert ds.fps == 1, "FPS should be 1"
assert ds.repo_id == "dummy/repo", "The dataset should have `dummy/repo` repo id"
for dim in state_dims():
assert dim in ds.features
assert ds.features[dim]["shape"] == buffer.states[dim][0].shape
assert ds.num_episodes == 2
assert ds.num_frames == 4
for j, value in enumerate(ds):
print(torch.equal(value["observation.image"], buffer.next_states["observation.image"][j]))
for i in range(len(ds)):
for feature, value in ds[i].items():
if feature == "action":
assert torch.equal(value, buffer.actions[i])
elif feature == "next.reward":
assert torch.equal(value, buffer.rewards[i])
elif feature == "next.done":
assert torch.equal(value, buffer.dones[i])
elif feature == "observation.image":
# Tenssor -> numpy is not precise, so we have some diff there
# TODO: Check and fix it
torch.testing.assert_close(value, buffer.states["observation.image"][i], rtol=0.3, atol=0.003)
elif feature == "observation.state":
assert torch.equal(value, buffer.states["observation.state"][i])
def test_from_lerobot_dataset(tmp_path):
dummy_state_1 = create_dummy_state()
dummy_action_1 = create_dummy_action()
dummy_state_2 = create_dummy_state()
dummy_action_2 = create_dummy_action()
dummy_state_3 = create_dummy_state()
dummy_action_3 = create_dummy_action()
dummy_state_4 = create_dummy_state()
dummy_action_4 = create_dummy_action()
replay_buffer = create_empty_replay_buffer()
replay_buffer.add(dummy_state_1, dummy_action_1, 1.0, dummy_state_1, False, False)
replay_buffer.add(dummy_state_2, dummy_action_2, 1.0, dummy_state_2, False, False)
replay_buffer.add(dummy_state_3, dummy_action_3, 1.0, dummy_state_3, True, True)
replay_buffer.add(dummy_state_4, dummy_action_4, 1.0, dummy_state_4, True, True)
root = tmp_path / "test"
ds = replay_buffer.to_lerobot_dataset(DUMMY_REPO_ID, root=root)
reconverted_buffer = ReplayBuffer.from_lerobot_dataset(
ds, state_keys=list(state_dims()), device="cpu", capacity=replay_buffer.capacity, use_drq=False
)
# Check only the part of the buffer that's actually filled with data
assert torch.equal(
reconverted_buffer.actions[: len(replay_buffer)],
replay_buffer.actions[: len(replay_buffer)],
), "Actions from converted buffer should be equal to the original replay buffer."
assert torch.equal(
reconverted_buffer.rewards[: len(replay_buffer)], replay_buffer.rewards[: len(replay_buffer)]
), "Rewards from converted buffer should be equal to the original replay buffer."
assert torch.equal(
reconverted_buffer.dones[: len(replay_buffer)], replay_buffer.dones[: len(replay_buffer)]
), "Dones from converted buffer should be equal to the original replay buffer."
# Lerobot DS haven't supported truncateds yet
expected_truncateds = torch.zeros(len(replay_buffer)).bool()
assert torch.equal(reconverted_buffer.truncateds[: len(replay_buffer)], expected_truncateds), (
"Truncateds from converted buffer should be equal False"
)
assert torch.equal(
replay_buffer.states["observation.state"][: len(replay_buffer)],
reconverted_buffer.states["observation.state"][: len(replay_buffer)],
), "State should be the same after converting to dataset and return back"
for i in range(4):
torch.testing.assert_close(
replay_buffer.states["observation.image"][i],
reconverted_buffer.states["observation.image"][i],
rtol=0.4,
atol=0.004,
)
# The 2, 3 frames have done flag, so their values will be equal to the current state
for i in range(2):
# In the current implementation we take the next state from the `states` and ignore `next_states`
next_index = (i + 1) % 4
torch.testing.assert_close(
replay_buffer.states["observation.image"][next_index],
reconverted_buffer.next_states["observation.image"][i],
rtol=0.4,
atol=0.004,
)
for i in range(2, 4):
assert torch.equal(
replay_buffer.states["observation.state"][i],
reconverted_buffer.next_states["observation.state"][i],
)
def test_buffer_sample_alignment():
# Initialize buffer
buffer = ReplayBuffer(capacity=100, device="cpu", state_keys=["state_value"], storage_device="cpu")
# Fill buffer with patterned data
for i in range(100):
signature = float(i) / 100.0
state = {"state_value": torch.tensor([[signature]]).float()}
action = torch.tensor([[2.0 * signature]]).float()
reward = 3.0 * signature
is_end = (i + 1) % 10 == 0
if is_end:
next_state = {"state_value": torch.tensor([[signature]]).float()}
done = True
else:
next_signature = float(i + 1) / 100.0
next_state = {"state_value": torch.tensor([[next_signature]]).float()}
done = False
buffer.add(state, action, reward, next_state, done, False)
# Sample and verify
batch = buffer.sample(50)
for i in range(50):
state_sig = batch["state"]["state_value"][i].item()
action_val = batch["action"][i].item()
reward_val = batch["reward"][i].item()
next_state_sig = batch["next_state"]["state_value"][i].item()
is_done = batch["done"][i].item() > 0.5
# Verify relationships
assert abs(action_val - 2.0 * state_sig) < 1e-4, (
f"Action {action_val} should be 2x state signature {state_sig}"
)
assert abs(reward_val - 3.0 * state_sig) < 1e-4, (
f"Reward {reward_val} should be 3x state signature {state_sig}"
)
if is_done:
assert abs(next_state_sig - state_sig) < 1e-4, (
f"For done states, next_state {next_state_sig} should equal state {state_sig}"
)
else:
# Either it's the next sequential state (+0.01) or same state (for episode boundaries)
valid_next = (
abs(next_state_sig - state_sig - 0.01) < 1e-4 or abs(next_state_sig - state_sig) < 1e-4
)
assert valid_next, (
f"Next state {next_state_sig} should be either state+0.01 or same as state {state_sig}"
)
def test_memory_optimization():
dummy_state_1 = create_dummy_state()
dummy_action_1 = create_dummy_action()
dummy_state_2 = create_dummy_state()
dummy_action_2 = create_dummy_action()
dummy_state_3 = create_dummy_state()
dummy_action_3 = create_dummy_action()
dummy_state_4 = create_dummy_state()
dummy_action_4 = create_dummy_action()
replay_buffer = create_empty_replay_buffer()
replay_buffer.add(dummy_state_1, dummy_action_1, 1.0, dummy_state_2, False, False)
replay_buffer.add(dummy_state_2, dummy_action_2, 1.0, dummy_state_3, False, False)
replay_buffer.add(dummy_state_3, dummy_action_3, 1.0, dummy_state_4, False, False)
replay_buffer.add(dummy_state_4, dummy_action_4, 1.0, dummy_state_4, True, True)
optimized_replay_buffer = create_empty_replay_buffer(True)
optimized_replay_buffer.add(dummy_state_1, dummy_action_1, 1.0, dummy_state_2, False, False)
optimized_replay_buffer.add(dummy_state_2, dummy_action_2, 1.0, dummy_state_3, False, False)
optimized_replay_buffer.add(dummy_state_3, dummy_action_3, 1.0, dummy_state_4, False, False)
optimized_replay_buffer.add(dummy_state_4, dummy_action_4, 1.0, None, True, True)
assert get_object_memory(optimized_replay_buffer) < get_object_memory(replay_buffer), (
"Optimized replay buffer should be smaller than the original replay buffer"
)
def test_check_image_augmentations_with_drq_and_dummy_image_augmentation_function(dummy_state, dummy_action):
def dummy_image_augmentation_function(x):
return torch.ones_like(x) * 10
replay_buffer = create_empty_replay_buffer(
use_drq=True, image_augmentation_function=dummy_image_augmentation_function
)
replay_buffer.add(dummy_state, dummy_action, 1.0, dummy_state, False, False)
sampled_transitions = replay_buffer.sample(1)
assert torch.all(sampled_transitions["state"]["observation.image"] == 10), (
"Image augmentations should be applied"
)
assert torch.all(sampled_transitions["next_state"]["observation.image"] == 10), (
"Image augmentations should be applied"
)
def test_check_image_augmentations_with_drq_and_default_image_augmentation_function(
dummy_state, dummy_action
):
replay_buffer = create_empty_replay_buffer(use_drq=True)
replay_buffer.add(dummy_state, dummy_action, 1.0, dummy_state, False, False)
# Let's check that it doesn't fail and shapes are correct
sampled_transitions = replay_buffer.sample(1)
assert sampled_transitions["state"]["observation.image"].shape == (1, 3, 84, 84)
assert sampled_transitions["next_state"]["observation.image"].shape == (1, 3, 84, 84)
def test_random_crop_vectorized_basic():
# Create a batch of 2 images with known patterns
batch_size, channels, height, width = 2, 3, 10, 8
images = torch.zeros((batch_size, channels, height, width))
# Fill with unique values for testing
for b in range(batch_size):
images[b] = b + 1
crop_size = (6, 4) # Smaller than original
cropped = random_crop_vectorized(images, crop_size)
# Check output shape
assert cropped.shape == (batch_size, channels, *crop_size)
# Check that values are preserved (should be either 1s or 2s for respective batches)
assert torch.all(cropped[0] == 1)
assert torch.all(cropped[1] == 2)
def test_random_crop_vectorized_invalid_size():
images = torch.zeros((2, 3, 10, 8))
# Test crop size larger than image
with pytest.raises(ValueError, match="Requested crop size .* is bigger than the image size"):
random_crop_vectorized(images, (12, 8))
with pytest.raises(ValueError, match="Requested crop size .* is bigger than the image size"):
random_crop_vectorized(images, (10, 10))
def _populate_buffer_for_async_test(capacity: int = 10) -> ReplayBuffer:
"""Create a small buffer with deterministic 3×128×128 images and 11-D state."""
buffer = ReplayBuffer(
capacity=capacity,
device="cpu",
state_keys=["observation.image", "observation.state"],
storage_device="cpu",
)
for i in range(capacity):
img = torch.ones(3, 128, 128) * i
state_vec = torch.arange(11).float() + i
state = {
"observation.image": img,
"observation.state": state_vec,
}
buffer.add(
state=state,
action=torch.tensor([0.0]),
reward=0.0,
next_state=state,
done=False,
truncated=False,
)
return buffer
def test_async_iterator_shapes_basic():
buffer = _populate_buffer_for_async_test()
batch_size = 2
iterator = buffer.get_iterator(batch_size=batch_size, async_prefetch=True, queue_size=1)
batch = next(iterator)
images = batch["state"]["observation.image"]
states = batch["state"]["observation.state"]
assert images.shape == (batch_size, 3, 128, 128)
assert states.shape == (batch_size, 11)
next_images = batch["next_state"]["observation.image"]
next_states = batch["next_state"]["observation.state"]
assert next_images.shape == (batch_size, 3, 128, 128)
assert next_states.shape == (batch_size, 11)
def test_async_iterator_multiple_iterations():
buffer = _populate_buffer_for_async_test()
batch_size = 2
iterator = buffer.get_iterator(batch_size=batch_size, async_prefetch=True, queue_size=2)
for _ in range(5):
batch = next(iterator)
images = batch["state"]["observation.image"]
states = batch["state"]["observation.state"]
assert images.shape == (batch_size, 3, 128, 128)
assert states.shape == (batch_size, 11)
next_images = batch["next_state"]["observation.image"]
next_states = batch["next_state"]["observation.state"]
assert next_images.shape == (batch_size, 3, 128, 128)
assert next_states.shape == (batch_size, 11)
# Ensure iterator can be disposed without blocking
del iterator