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TST: Test Groupby with Categoricals consistent for Series and DataFrame results #29343

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Nov 2, 2019
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TST: Test Groupby with Categoricals consistent for Series and DataFrame results #29343

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Add test_groupby_categorical_series_dataframe_consistent
keechongtan Nov 2, 2019
c0cd900
Reformatting with Black
keechongtan Nov 2, 2019
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7 changes: 7 additions & 0 deletions pandas/tests/groupby/test_categorical.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1193,6 +1193,13 @@ def test_seriesgroupby_observed_apply_dict(df_cat, observed, index, data):
tm.assert_series_equal(result, expected)


def test_groupby_categorical_series_dataframe_consistent(df_cat):
# GH 20416
expected = df_cat.groupby(["A", "B"])["C"].mean()
result = df_cat.groupby(["A", "B"]).mean()["C"]
tm.assert_series_equal(result, expected)


@pytest.mark.parametrize("code", [([1, 0, 0]), ([0, 0, 0])])
def test_groupby_categorical_axis_1(code):
# GH 13420
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