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TST: Groupby.groups of datetimeindex (#11442) #14952

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Merged
jreback merged 1 commit into from
Dec 23, 2016
Merged

TST: Groupby.groups of datetimeindex (#11442) #14952

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21 changes: 21 additions & 0 deletions pandas/tests/groupby/test_groupby.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3933,6 +3933,27 @@ def test_groupby_groups_datetimeindex(self):
groups = grouped.groups
tm.assertIsInstance(list(groups.keys())[0], datetime)

# GH 11442
index = pd.date_range('2015/01/01', periods=5, name='date')
df = pd.DataFrame({'A': [5, 6, 7, 8, 9],
'B': [1, 2, 3, 4, 5]}, index=index)
result = df.groupby(level='date').groups
dates = ['2015-01-05', '2015-01-04', '2015-01-03',
'2015-01-02', '2015-01-01']
expected = {pd.Timestamp(date): pd.DatetimeIndex([date], name='date')
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@jreback jreback Dec 22, 2016

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add the .get_group call as well here. ping on green.

for date in dates}
tm.assert_dict_equal(result, expected)

grouped = df.groupby(level='date')
for date in dates:
result = grouped.get_group(date)
data = [[df.loc[date, 'A'], df.loc[date, 'B']]]
expected_index = pd.DatetimeIndex([date], name='date')
expected = pd.DataFrame(data,
columns=list('AB'),
index=expected_index)
tm.assert_frame_equal(result, expected)

def test_groupby_groups_datetimeindex_tz(self):
# GH 3950
dates = ['2011-07-19 07:00:00', '2011-07-19 08:00:00',
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