mock open3d to avoid installation

Author: c4dynamics

tests/test_test_animate.py

@@ -52,9 +52,14 @@ def capture_screen_image(self, filepath):
     def destroy_window(self):
         pass
 
-# Replace the o3d.visualization.Visualizer with our MockVisualizer
-# import open3d as o3d
-import open3d as o3d
+from unittest.mock import MagicMock
+
+# Try importing Open3D, mock it if not available
+try:
+    import open3d as o3d
+except ImportError:
+    sys.modules["open3d"] = MagicMock()
+
 o3d.utility.set_verbosity_level(o3d.utility.VerbosityLevel.Error)
 
 o3d.visualization.Visualizer = MockVisualizer