Fix test_visualize_dataset_html

lerobot/scripts/visualize_dataset_html.py

@@ -130,16 +130,16 @@ def write_episode_data_csv(output_dir, file_name, episode_index, dataset):
     from_idx = dataset.episode_data_index["from"][episode_index]
     to_idx = dataset.episode_data_index["to"][episode_index]
 
-    has_state = "observation.state" in dataset.hf_dataset.features
-    has_action = "action" in dataset.hf_dataset.features
+    has_state = "observation.state" in dataset.features
+    has_action = "action" in dataset.features
 
     # init header of csv with state and action names
     header = ["timestamp"]
     if has_state:
-        dim_state = dataset.meta.shapes["observation.state"]
+        dim_state = dataset.meta.shapes["observation.state"][0]
         header += [f"state_{i}" for i in range(dim_state)]
     if has_action:
-        dim_action = dataset.meta.shapes["action"]
+        dim_action = dataset.meta.shapes["action"][0]
         header += [f"action_{i}" for i in range(dim_action)]
 
     columns = ["timestamp"]
@@ -175,23 +175,8 @@ def get_episode_video_paths(dataset: LeRobotDataset, ep_index: int) -> list[str]
     ]
 
 
-def get_episode_language_instruction(dataset: LeRobotDataset, ep_index: int) -> list[str]:
-    # check if the dataset has language instructions
-    if "language_instruction" not in dataset.hf_dataset.features:
-        return None
-
-    # get first frame index
-    first_frame_idx = dataset.episode_data_index["from"][ep_index].item()
-
-    language_instruction = dataset.hf_dataset[first_frame_idx]["language_instruction"]
-    # TODO (michel-aractingi) hack to get the sentence, some strings in openx are badly stored
-    # with the tf.tensor appearing in the string
-    return language_instruction.removeprefix("tf.Tensor(b'").removesuffix("', shape=(), dtype=string)")
-
-
 def visualize_dataset_html(
-    repo_id: str,
-    root: Path | None = None,
+    dataset: LeRobotDataset,
     episodes: list[int] = None,
     output_dir: Path | None = None,
     serve: bool = True,
@@ -201,13 +186,11 @@ def visualize_dataset_html(
 ) -> Path | None:
     init_logging()
 
-    dataset = LeRobotDataset(repo_id, root=root)
-
     if len(dataset.meta.image_keys) > 0:
         raise NotImplementedError(f"Image keys ({dataset.meta.image_keys=}) are currently not supported.")
 
     if output_dir is None:
-        output_dir = f"outputs/visualize_dataset_html/{repo_id}"
+        output_dir = f"outputs/visualize_dataset_html/{dataset.repo_id}"
 
     output_dir = Path(output_dir)
     if output_dir.exists():
@@ -296,7 +279,11 @@ def main():
     )
 
     args = parser.parse_args()
-    visualize_dataset_html(**vars(args))
+    kwargs = vars(args)
+    repo_id = kwargs.pop("repo_id")
+    root = kwargs.pop("root")
+    dataset = LeRobotDataset(repo_id, root=root, local_files_only=True)
+    visualize_dataset_html(dataset, **kwargs)
 
 
 if __name__ == "__main__":

tests/test_visualize_dataset_html.py

@@ -14,23 +14,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from pathlib import Path
-
-import pytest
-
 from lerobot.scripts.visualize_dataset_html import visualize_dataset_html
 
 
-@pytest.mark.parametrize(
-    "repo_id",
-    ["lerobot/pusht"],
-)
-def test_visualize_dataset_html(tmpdir, repo_id):
-    tmpdir = Path(tmpdir)
+def test_visualize_dataset_html(tmp_path, lerobot_dataset_factory):
+    root = tmp_path / "dataset"
+    output_dir = tmp_path / "outputs"
+    dataset = lerobot_dataset_factory(root=root)
     visualize_dataset_html(
-        repo_id,
+        dataset,
         episodes=[0],
-        output_dir=tmpdir,
+        output_dir=output_dir,
         serve=False,
     )
-    assert (tmpdir / "static" / "episode_0.csv").exists()
+    assert (output_dir / "static" / "episode_0.csv").exists()