Update tests, change whitespace

Author: moi90

pandas/tests/util/test_assert_frame_equal.py

@@ -141,7 +141,7 @@ def test_empty_dtypes(check_dtype):
     df1["col1"] = df1["col1"].astype("int64")
 
     if check_dtype:
-        msg = "Attributes are different"
+        msg = r"Attributes of DataFrame\..* are different"
         with pytest.raises(AssertionError, match=msg):
             assert_frame_equal(df1, df2, **kwargs)
     else:

pandas/util/testing.py

@@ -1156,7 +1156,9 @@ def assert_series_equal(
         ):
             pass
         else:
-            assert_attr_equal("dtype", left, right, obj="Attributes of {obj}".format(obj=obj))
+            assert_attr_equal(
+                "dtype", left, right, obj="Attributes of {obj}".format(obj=obj)
+            )
 
     if check_exact:
         assert_numpy_array_equal(