Organize test folders (#856)

Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>

tests/datasets/test_visualize_dataset.py

@@ -0,0 +1,33 @@
+#!/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.
+import pytest
+
+from lerobot.scripts.visualize_dataset import visualize_dataset
+
+
+@pytest.mark.skip("TODO: add dummy videos")
+def test_visualize_local_dataset(tmp_path, lerobot_dataset_factory):
+    root = tmp_path / "dataset"
+    output_dir = tmp_path / "outputs"
+    dataset = lerobot_dataset_factory(root=root)
+    rrd_path = visualize_dataset(
+        dataset,
+        episode_index=0,
+        batch_size=32,
+        save=True,
+        output_dir=output_dir,
+    )
+    assert rrd_path.exists()