Updating test_multiindex_assignment_single_dtype method in testsetindex.py

Author: hasanrashid

pandas/tests/indexing/multiindex/test_setitem.py

@@ -225,7 +225,7 @@ def test_multiindex_assignment_single_dtype(self):
         tm.assert_series_equal(df.loc[4, "c"], exp)
 
         # invalid assignments
-        msg = "Must have equal len keys and value when setting with an iterable"
+        msg = "Length mismatch when setting Dataframe with an iterable"
         with pytest.raises(ValueError, match=msg):
             df.loc[4, "c"] = [0, 1, 2, 3]