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Move test to test_grouping.py
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pandas/tests/groupby/test_groupby.py

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@@ -2057,16 +2057,3 @@ def test_groups_repr_truncates(max_seq_items, expected):
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result = df.groupby(np.array(df.a)).groups.__repr__()
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assert result == expected
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def test_groupby_period_index():
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# GH 32108
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periods = 2
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index = pd.period_range(start="2018-01", periods=periods, freq="M")
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periodSerie = Series(range(periods), index=index)
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periodSerie.index.name = "Month"
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result = periodSerie.groupby(periodSerie.index.month).sum()
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expected = pd.Series(range(0, periods), index=range(1, periods + 1))
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expected.index.name = periodSerie.index.name
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tm.assert_series_equal(result, expected)

pandas/tests/groupby/test_grouping.py

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Original file line numberDiff line numberDiff line change
@@ -149,6 +149,18 @@ def test_grouper_index_types(self):
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df.index = list(reversed(df.index.tolist()))
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df.groupby(list("abcde")).apply(lambda x: x)
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def test_grouper_period_index(self):
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# GH 32108
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periods = 2
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index = pd.period_range(start="2018-01", periods=periods, freq="M")
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periodSerie = pd.Series(range(periods), index=index)
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periodSerie.index.name = "Month"
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result = periodSerie.groupby(periodSerie.index.month).sum()
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expected = pd.Series(range(0, periods), index=range(1, periods + 1))
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expected.index.name = periodSerie.index.name
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tm.assert_series_equal(result, expected)
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def test_grouper_multilevel_freq(self):
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# GH 7885

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