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TST: move custom business day tests to own file (#27085) #42896

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Aug 5, 2021
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TST: move custom business day tests to own file (#27085) #42896

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245 changes: 0 additions & 245 deletions pandas/tests/tseries/offsets/test_business_day.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,21 +7,17 @@
timedelta,
)

import numpy as np
import pytest

from pandas._libs.tslibs.offsets import (
ApplyTypeError,
BDay,
BMonthEnd,
CDay,
)
from pandas.compat import np_datetime64_compat

from pandas import (
DatetimeIndex,
_testing as tm,
read_pickle,
)
from pandas.tests.tseries.offsets.common import (
Base,
Expand All @@ -31,7 +27,6 @@
from pandas.tests.tseries.offsets.test_offsets import _ApplyCases

from pandas.tseries import offsets as offsets
from pandas.tseries.holiday import USFederalHolidayCalendar


class TestBusinessDay(Base):
Expand Down Expand Up @@ -212,243 +207,3 @@ def test_apply_corner(self):
msg = "Only know how to combine business day with datetime or timedelta"
with pytest.raises(ApplyTypeError, match=msg):
BDay().apply(BMonthEnd())


class TestCustomBusinessDay(Base):
_offset = CDay

def setup_method(self, method):
self.d = datetime(2008, 1, 1)
self.nd = np_datetime64_compat("2008-01-01 00:00:00Z")

self.offset = CDay()
self.offset1 = self.offset
self.offset2 = CDay(2)

def test_different_normalize_equals(self):
# GH#21404 changed __eq__ to return False when `normalize` does not match
offset = self._offset()
offset2 = self._offset(normalize=True)
assert offset != offset2

def test_repr(self):
assert repr(self.offset) == "<CustomBusinessDay>"
assert repr(self.offset2) == "<2 * CustomBusinessDays>"

expected = "<BusinessDay: offset=datetime.timedelta(days=1)>"
assert repr(self.offset + timedelta(1)) == expected

def test_with_offset(self):
offset = self.offset + timedelta(hours=2)

assert (self.d + offset) == datetime(2008, 1, 2, 2)

def test_with_offset_index(self):
dti = DatetimeIndex([self.d])
result = dti + (self.offset + timedelta(hours=2))

expected = DatetimeIndex([datetime(2008, 1, 2, 2)])
tm.assert_index_equal(result, expected)

def test_eq(self):
assert self.offset2 == self.offset2

def test_mul(self):
pass

def test_hash(self):
assert hash(self.offset2) == hash(self.offset2)

def test_call(self):
with tm.assert_produces_warning(FutureWarning):
# GH#34171 DateOffset.__call__ is deprecated
assert self.offset2(self.d) == datetime(2008, 1, 3)
assert self.offset2(self.nd) == datetime(2008, 1, 3)

def testRollback1(self):
assert CDay(10).rollback(self.d) == self.d

def testRollback2(self):
assert CDay(10).rollback(datetime(2008, 1, 5)) == datetime(2008, 1, 4)

def testRollforward1(self):
assert CDay(10).rollforward(self.d) == self.d

def testRollforward2(self):
assert CDay(10).rollforward(datetime(2008, 1, 5)) == datetime(2008, 1, 7)

def test_roll_date_object(self):
offset = CDay()

dt = date(2012, 9, 15)

result = offset.rollback(dt)
assert result == datetime(2012, 9, 14)

result = offset.rollforward(dt)
assert result == datetime(2012, 9, 17)

offset = offsets.Day()
result = offset.rollback(dt)
assert result == datetime(2012, 9, 15)

result = offset.rollforward(dt)
assert result == datetime(2012, 9, 15)

on_offset_cases = [
(CDay(), datetime(2008, 1, 1), True),
(CDay(), datetime(2008, 1, 5), False),
]

@pytest.mark.parametrize("case", on_offset_cases)
def test_is_on_offset(self, case):
offset, d, expected = case
assert_is_on_offset(offset, d, expected)

apply_cases: _ApplyCases = [
(
CDay(),
{
datetime(2008, 1, 1): datetime(2008, 1, 2),
datetime(2008, 1, 4): datetime(2008, 1, 7),
datetime(2008, 1, 5): datetime(2008, 1, 7),
datetime(2008, 1, 6): datetime(2008, 1, 7),
datetime(2008, 1, 7): datetime(2008, 1, 8),
},
),
(
2 * CDay(),
{
datetime(2008, 1, 1): datetime(2008, 1, 3),
datetime(2008, 1, 4): datetime(2008, 1, 8),
datetime(2008, 1, 5): datetime(2008, 1, 8),
datetime(2008, 1, 6): datetime(2008, 1, 8),
datetime(2008, 1, 7): datetime(2008, 1, 9),
},
),
(
-CDay(),
{
datetime(2008, 1, 1): datetime(2007, 12, 31),
datetime(2008, 1, 4): datetime(2008, 1, 3),
datetime(2008, 1, 5): datetime(2008, 1, 4),
datetime(2008, 1, 6): datetime(2008, 1, 4),
datetime(2008, 1, 7): datetime(2008, 1, 4),
datetime(2008, 1, 8): datetime(2008, 1, 7),
},
),
(
-2 * CDay(),
{
datetime(2008, 1, 1): datetime(2007, 12, 28),
datetime(2008, 1, 4): datetime(2008, 1, 2),
datetime(2008, 1, 5): datetime(2008, 1, 3),
datetime(2008, 1, 6): datetime(2008, 1, 3),
datetime(2008, 1, 7): datetime(2008, 1, 3),
datetime(2008, 1, 8): datetime(2008, 1, 4),
datetime(2008, 1, 9): datetime(2008, 1, 7),
},
),
(
CDay(0),
{
datetime(2008, 1, 1): datetime(2008, 1, 1),
datetime(2008, 1, 4): datetime(2008, 1, 4),
datetime(2008, 1, 5): datetime(2008, 1, 7),
datetime(2008, 1, 6): datetime(2008, 1, 7),
datetime(2008, 1, 7): datetime(2008, 1, 7),
},
),
]

@pytest.mark.parametrize("case", apply_cases)
def test_apply(self, case):
offset, cases = case
for base, expected in cases.items():
assert_offset_equal(offset, base, expected)

def test_apply_large_n(self):
dt = datetime(2012, 10, 23)

result = dt + CDay(10)
assert result == datetime(2012, 11, 6)

result = dt + CDay(100) - CDay(100)
assert result == dt

off = CDay() * 6
rs = datetime(2012, 1, 1) - off
xp = datetime(2011, 12, 23)
assert rs == xp

st = datetime(2011, 12, 18)
rs = st + off
xp = datetime(2011, 12, 26)
assert rs == xp

def test_apply_corner(self):
msg = (
"Only know how to combine trading day "
"with datetime, datetime64 or timedelta"
)
with pytest.raises(ApplyTypeError, match=msg):
CDay().apply(BMonthEnd())

def test_holidays(self):
# Define a TradingDay offset
holidays = ["2012-05-01", datetime(2013, 5, 1), np.datetime64("2014-05-01")]
tday = CDay(holidays=holidays)
for year in range(2012, 2015):
dt = datetime(year, 4, 30)
xp = datetime(year, 5, 2)
rs = dt + tday
assert rs == xp

def test_weekmask(self):
weekmask_saudi = "Sat Sun Mon Tue Wed" # Thu-Fri Weekend
weekmask_uae = "1111001" # Fri-Sat Weekend
weekmask_egypt = [1, 1, 1, 1, 0, 0, 1] # Fri-Sat Weekend
bday_saudi = CDay(weekmask=weekmask_saudi)
bday_uae = CDay(weekmask=weekmask_uae)
bday_egypt = CDay(weekmask=weekmask_egypt)
dt = datetime(2013, 5, 1)
xp_saudi = datetime(2013, 5, 4)
xp_uae = datetime(2013, 5, 2)
xp_egypt = datetime(2013, 5, 2)
assert xp_saudi == dt + bday_saudi
assert xp_uae == dt + bday_uae
assert xp_egypt == dt + bday_egypt
xp2 = datetime(2013, 5, 5)
assert xp2 == dt + 2 * bday_saudi
assert xp2 == dt + 2 * bday_uae
assert xp2 == dt + 2 * bday_egypt

def test_weekmask_and_holidays(self):
weekmask_egypt = "Sun Mon Tue Wed Thu" # Fri-Sat Weekend
holidays = ["2012-05-01", datetime(2013, 5, 1), np.datetime64("2014-05-01")]
bday_egypt = CDay(holidays=holidays, weekmask=weekmask_egypt)
dt = datetime(2013, 4, 30)
xp_egypt = datetime(2013, 5, 5)
assert xp_egypt == dt + 2 * bday_egypt

@pytest.mark.filterwarnings("ignore:Non:pandas.errors.PerformanceWarning")
def test_calendar(self):
calendar = USFederalHolidayCalendar()
dt = datetime(2014, 1, 17)
assert_offset_equal(CDay(calendar=calendar), dt, datetime(2014, 1, 21))

def test_roundtrip_pickle(self):
def _check_roundtrip(obj):
unpickled = tm.round_trip_pickle(obj)
assert unpickled == obj

_check_roundtrip(self.offset)
_check_roundtrip(self.offset2)
_check_roundtrip(self.offset * 2)

def test_pickle_compat_0_14_1(self, datapath):
hdays = [datetime(2013, 1, 1) for ele in range(4)]
pth = datapath("tseries", "offsets", "data", "cday-0.14.1.pickle")
cday0_14_1 = read_pickle(pth)
cday = CDay(holidays=hdays)
assert cday == cday0_14_1
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