fix test

Author: Robbie Muir

linopy/common.py

@@ -137,6 +137,7 @@ def try_to_convert_to_pd_datetime_index(
         if isinstance(coord, xr.DataArray):
             index = coord.to_index()
             assert isinstance(index, pd.DatetimeIndex)
+            return index
         return pd.DatetimeIndex(coord)
     except Exception:
         return coord

test/test_variables.py

@@ -141,7 +141,6 @@ def test_timezone_alignment_with_multiplication() -> None:
     series1 = pd.Series(index=utc_index, data=1.0)
     var1 = model.add_variables(coords=[utc_index], name="var1")
 
-    # TODO increase coverage for datarray when coords are not dataarray
     with warnings.catch_warnings():
         warnings.simplefilter("error", CoordAlignWarning)
         expr = var1 * series1