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[TEST] Add two more parameters to the test_dti_add_sub_nonzero_mth_offset #26392

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Merged
merged 2 commits into from
May 25, 2019
Merged

[TEST] Add two more parameters to the test_dti_add_sub_nonzero_mth_offset #26392

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91c25c8
Add two more parameters to the test
makbigc May 14, 2019
7decf16
Add array into the boy and add parameter freq
makbigc May 22, 2019
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38 changes: 25 additions & 13 deletions pandas/tests/arithmetic/test_datetime64.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1435,27 +1435,39 @@ def test_dt64arr_add_sub_offset_ndarray(self, tz_naive_fixture,
expected = tm.box_expected(expected, box_with_array)
tm.assert_equal(res, expected)

@pytest.mark.parametrize("op, offset, exp", [
@pytest.mark.parametrize("op, offset, exp, exp_freq", [
('__add__', pd.DateOffset(months=3, days=10),
DatetimeIndex([Timestamp('2014-04-11'), Timestamp('2015-04-11'),
Timestamp('2016-04-11'), Timestamp('2017-04-11')])),
[Timestamp('2014-04-11'), Timestamp('2015-04-11'),
Timestamp('2016-04-11'), Timestamp('2017-04-11')],
None),
('__add__', pd.DateOffset(months=3),
DatetimeIndex([Timestamp('2014-04-01'), Timestamp('2015-04-01'),
Timestamp('2016-04-01'), Timestamp('2017-04-01')])),
[Timestamp('2014-04-01'), Timestamp('2015-04-01'),
Timestamp('2016-04-01'), Timestamp('2017-04-01')],
"AS-APR"),
('__sub__', pd.DateOffset(months=3, days=10),
DatetimeIndex([Timestamp('2013-09-21'), Timestamp('2014-09-21'),
Timestamp('2015-09-21'), Timestamp('2016-09-21')])),
[Timestamp('2013-09-21'), Timestamp('2014-09-21'),
Timestamp('2015-09-21'), Timestamp('2016-09-21')],
None),
('__sub__', pd.DateOffset(months=3),
DatetimeIndex([Timestamp('2013-10-01'), Timestamp('2014-10-01'),
Timestamp('2015-10-01'), Timestamp('2016-10-01')]))

[Timestamp('2013-10-01'), Timestamp('2014-10-01'),
Timestamp('2015-10-01'), Timestamp('2016-10-01')],
"AS-OCT")
])
def test_dti_add_sub_nonzero_mth_offset(self, op, offset, exp):
def test_dti_add_sub_nonzero_mth_offset(self, op, offset,
exp, exp_freq,
tz_aware_fixture,
box_with_array):
# GH 26258
date = date_range(start='01 Jan 2014', end='01 Jan 2017', freq='AS')
tz = tz_aware_fixture
date = date_range(start='01 Jan 2014', end='01 Jan 2017', freq='AS',
tz=tz)
date = tm.box_expected(date, box_with_array, False)
mth = getattr(date, op)
result = mth(offset)
tm.assert_equal(result, exp)

expected = pd.DatetimeIndex(exp, tz=tz, freq=exp_freq)
expected = tm.box_expected(expected, box_with_array, False)
tm.assert_equal(result, expected)


class TestDatetime64OverflowHandling:
Expand Down