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TST: groupby with daily frequency fails with NonExistentTimeError on clock change day in Brazil #23756

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Nov 17, 2018
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TST: groupby with daily frequency fails with NonExistentTimeError on clock change day in Brazil #23756

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9 changes: 9 additions & 0 deletions pandas/tests/test_resample.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2515,6 +2515,15 @@ def test_resample_nonexistent_time_bin_edge(self):
result = expected.resample('900S').mean()
tm.assert_series_equal(result, expected)

# GH 23742
index = date_range(start='2017-10-10', end='2017-10-20', freq='1H')
index = index.tz_localize('UTC').tz_convert('America/Sao_Paulo')
df = DataFrame(data=list(range(len(index))), index=index)
result = df.groupby(pd.Grouper(freq='1D'))
expected = date_range(start='2017-10-09', end='2017-10-20', freq='D',
tz="America/Sao_Paulo")
tm.assert_index_equal(result.count().index, expected)

def test_resample_ambiguous_time_bin_edge(self):
# GH 10117
idx = pd.date_range("2014-10-25 22:00:00", "2014-10-26 00:30:00",
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