assert assign to empty does not change frame

Author: matiaslindgren

pandas/tests/indexing/test_loc.py

@@ -3268,4 +3268,6 @@ def test_loc_nonunique_masked_index(self):
     def test_loc_reindexing_of_empty_index(self):
         # GH 57735
         df = DataFrame(index=[1, 1, 2, 2], data=["1", "1", "2", "2"])
-        df.loc[Series([False] * 4], index=df.index, name=0), 0] = df[0]
+        df.loc[Series([False] * 4, index=df.index, name=0), 0] = df[0]
+        expected = DataFrame(index=[1, 1, 2, 2], data=["1", "1", "2", "2"])
+        tm.assert_frame_equal(df, expected)