Paramterized Copy-False

Author: SurajH1

pandas/tests/dtypes/test_concat.py

@@ -90,11 +90,12 @@ def test_concat_mismatched_categoricals_with_empty():
     tm.assert_categorical_equal(result, expected)
 
 
-def test_no_tz_concat_without_copy():
+@pytest.mark.parametrize("_COPY_", [True, False])
+def test_no_tz_concat_without_copy(_COPY_):
     # This will raise a ValueError issue if it fails
     # Regression test for issue 25257
     df = pd.DataFrame({'timestamp': [pd.Timestamp('2020-04-08 09:00:00.709949+0000',
                       tz='UTC')], })
-    result = pd.concat([df], copy=False)
+    result = pd.concat([df], copy=_COPY_)
     expected = df
     tm.assert_frame_equal(result, expected)