made warning message more explicit

Author: VictorVerhaert

openeo/rest/datacube.py

@@ -450,11 +450,12 @@ def load_stac(
                         type="bands",
                         label=None,
                     )
-                if all(metadata.band_dimension.contains_band(b) for b in bands):
+                missing_bands = [b for b in bands if not metadata.band_dimension.contains_band(b)]
+                if len(missing_bands) == 0:
                     metadata = metadata.filter_bands(band_names=bands)
                 else:
                     logging.warning(
-                        "Some bands are not available in the collection metadata. Using requested bands as is."
+                        f"Bands {missing_bands} are not available in the collection metadata. Using requested bands as is."
                     )
                     metadata = metadata.rename_labels(dimension="bands", target=bands)
         except Exception as e:

tests/rest/test_connection.py

@@ -2975,12 +2975,16 @@ def test_load_stac_band_filtering(self, con120, tmp_path, caplog):
         # Test with non-existing bands in the collection metadata
         cube = con120.load_stac(str(stac_path), bands=["B04"])
         assert cube.metadata.band_names == ["B04"]
-        assert "Some bands are not available in the collection metadata. Using requested bands as is." in caplog.text
+        expected_warning = "Bands ['B04'] are not available in the collection metadata. Using requested bands as is."
+        assert expected_warning in caplog.text
         caplog.clear()
 
-        cube = con120.load_stac(str(stac_path), bands=["B03", "B04"])
-        assert cube.metadata.band_names == ["B03", "B04"]
-        assert "Some bands are not available in the collection metadata. Using requested bands as is." in caplog.text
+        cube = con120.load_stac(str(stac_path), bands=["B03", "B04", "B05"])
+        assert cube.metadata.band_names == ["B03", "B04", "B05"]
+        expected_warning = (
+            "Bands ['B04', 'B05'] are not available in the collection metadata. Using requested bands as is."
+        )
+        assert expected_warning in caplog.text
         caplog.clear()
 
     @pytest.mark.parametrize(