Fixup CubeMetadata.__repr__ for the empty case too

ref Open-EO/openeo-python-driver#428

Author: soxofaan

openeo/metadata.py

@@ -260,7 +260,7 @@ class CubeMetadata:
 
     def __init__(self, dimensions: Optional[List[Dimension]] = None):
         # Original collection metadata (actual cube metadata might be altered through processes)
-        self._dimensions = dimensions
+        self._dimensions = dimensions or []
         self._band_dimension = None
         self._temporal_dimension = None
 

tests/test_metadata.py

@@ -1178,6 +1178,11 @@ def test_metadata_resample_cube_spatial_preserve_non_spatial():
     assert not result31.has_temporal_dimension()
 
 
+def test_cube_metadata_repr_empty():
+    metadata = CubeMetadata()
+    assert repr(metadata) == "CubeMetadata(dimension_names=[])"
+
+
 def test_cube_metadata_repr_with_bands():
     assert repr(CUBE_METADATA_XYTB) == "CubeMetadata(dimension_names=['x', 'y', 't', 'bands'], band_names=['B2', 'B3'])"