8000 TST: remove DST transition scenarios from test_dti_tz_localize_roundt… · pandas-dev/pandas@76f8808 · GitHub
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TST: remove DST transition scenarios from test_dti_tz_localize_roundtrip #24689 
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‎pandas/tests/indexes/datetimes/test_timezones.py

Lines changed: 17 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
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from distutils.version import LooseVersion
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import dateutil
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from dateutil.tz import gettz, tzlocal
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from dateutil.tz import gettz, tzlocal, tzutc
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import numpy as np
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import pytest
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import pytz
@@ -434,24 +434,30 @@ def test_dti_tz_localize_utc_conversion(self, tz):
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with pytest.raises(pytz.NonExistentTimeError):
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rng.tz_localize(tz)
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@pytest.mark.parametrize('tz', [
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'UTC', 'US/Eastern', 'Europe/London', 'Asia/Tokyo', 'Australia/NSW',
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'dateutil/US/Pacific', 'dateutil/Asia/Singapore', tzutc(),
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pytz.FixedOffset(300), pytz.FixedOffset(0), pytz.FixedOffset(-300)
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])
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@pytest.mark.parametrize('idx', [
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date_range(start='2014-01-01', end='2014-12-31', freq='M'),
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date_range(start='2014-01-01', end='2014-12-31', freq='D'),
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date_range(start='2014-01-01', end='2014-03-01', freq='H'),
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date_range(start='2014-08-01', end='2014-10-31', freq='T')
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date_range(start='2014-12-01', end='2015-02-28', freq='D'),
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date_range(start='2014-05-01', end='2015-07-31', freq='D'),
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date_range(start='2014-01-01', end='2014-02-28', freq='H'),
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date_range(start='2014-08-01', end='2014-09-30', freq='15T')
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])
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def test_dti_tz_localize_roundtrip(self, tz_aware_fixture, idx):
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tz = tz_aware_fixture
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def test_dti_tz_localize_roundtrip(self, tz, idx):
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# note: this tz tests that a tz-naive index can be localized
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# and de-localized successfully, when there are no DST transitions
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# in the range.
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localized = idx.tz_localize(tz)
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expected = date_range(start=idx[0], end=idx[-1], freq=idx.freq,
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tz=tz)
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tm.assert_index_equal(localized, expected)
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# cant localize a tz-aware object
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with pytest.raises(TypeError):
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localized.tz_localize(tz)
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reset = localized.tz_localize(None)
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tm.assert_index_equal(reset, idx)
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assert reset.tzinfo is None
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tm.assert_index_equal(reset, idx)
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def test_dti_tz_localize_naive(self):
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rng = date_range('1/1/2011', periods=100, freq='H')

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