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update VLA-JEPA tests for arch changes and action_is_pad

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- Switch conftest to use `action_model_type="DiT-test"` now that
  `action_num_heads` / `action_attention_head_dim` have been removed.
- Add action_head tests covering fully-padded loss (zero) and equivalence
  of action_is_pad=None vs all-zeros mask.
- Remove obsolete `test_native_to_lerobot_wm_only` test.
This commit is contained in:
Maximellerbach
2026-05-15 14:34:41 +02:00
parent ab5222c819
commit 1f80d91607
3 changed files with 39 additions and 9 deletions
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tests/policies/vla_jepa/test_vla_jepa.py
-7
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@@ -257,13 +257,6 @@ def test_native_to_lerobot_both_losses(patch_vla_jepa_external_models: None) ->
assert logs["wm_loss"] == pytest.approx(0.1, abs=1e-5)
def test_native_to_lerobot_wm_only(patch_vla_jepa_external_models: None) -> None:
policy = VLAJEPAPolicy(make_config())
_, logs = policy._native_to_lerobot({"wm_loss": torch.tensor(0.3)})
assert "action_loss" not in logs
assert logs["wm_loss"] == pytest.approx(0.3, abs=1e-5)
# ---------------------------------------------------------------------------
# Pretrained checkpoint
# ---------------------------------------------------------------------------