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TST: share a bunch of test_custom_business_day #44493

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REF/TST: share a bunch of test_custom_business_day
jbrockmendel Nov 16, 2021
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jbrockmendel Nov 16, 2021
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54 changes: 33 additions & 21 deletions pandas/tests/tseries/offsets/test_business_day.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
BDay,
BMonthEnd,
)
from pandas.compat import np_datetime64_compat

from pandas import (
DatetimeIndex,
Expand All @@ -36,10 +37,11 @@ class TestBusinessDay(Base):

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

self.offset = BDay()
self.offset = self._offset()
self.offset1 = self.offset
self.offset2 = BDay(2)
self.offset2 = self._offset(2)

def test_different_normalize_equals(self):
# GH#21404 changed __eq__ to return False when `normalize` does not match
Expand Down Expand Up @@ -98,21 +100,24 @@ 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 BDay(10).rollback(self.d) == self.d
assert self._offset(10).rollback(self.d) == self.d

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

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

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

def test_roll_date_object(self):
offset = BDay()
offset = self._offset()

dt = date(2012, 9, 15)

Expand All @@ -131,16 +136,16 @@ def test_roll_date_object(self):

def test_is_on_offset(self):
tests = [
(BDay(), datetime(2008, 1, 1), True),
(BDay(), datetime(2008, 1, 5), False),
(self._offset(), datetime(2008, 1, 1), True),
(self._offset(), datetime(2008, 1, 5), False),
]

for offset, d, expected in tests:
assert_is_on_offset(offset, d, expected)

apply_cases: _ApplyCases = [
(
BDay(),
1,
{
datetime(2008, 1, 1): datetime(2008, 1, 2),
datetime(2008, 1, 4): datetime(2008, 1, 7),
Expand All @@ -150,7 +155,7 @@ def test_is_on_offset(self):
},
),
(
2 * BDay(),
2,
{
datetime(2008, 1, 1): datetime(2008, 1, 3),
datetime(2008, 1, 4): datetime(2008, 1, 8),
Expand All @@ -160,7 +165,7 @@ def test_is_on_offset(self):
},
),
(
-BDay(),
-1,
{
datetime(2008, 1, 1): datetime(2007, 12, 31),
datetime(2008, 1, 4): datetime(2008, 1, 3),
Expand All @@ -171,7 +176,7 @@ def test_is_on_offset(self):
},
),
(
-2 * BDay(),
-2,
{
datetime(2008, 1, 1): datetime(2007, 12, 28),
datetime(2008, 1, 4): datetime(2008, 1, 2),
Expand All @@ -183,7 +188,7 @@ def test_is_on_offset(self):
},
),
(
BDay(0),
0,
{
datetime(2008, 1, 1): datetime(2008, 1, 1),
datetime(2008, 1, 4): datetime(2008, 1, 4),
Expand All @@ -196,20 +201,21 @@ def test_is_on_offset(self):

@pytest.mark.parametrize("case", apply_cases)
def test_apply(self, case):
offset, cases = case
n, cases = case
offset = self._offset(n)
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 + BDay(10)
result = dt + self._offset(10)
assert result == datetime(2012, 11, 6)

result = dt + BDay(100) - BDay(100)
result = dt + self._offset(100) - self._offset(100)
assert result == dt

off = BDay() * 6
off = self._offset() * 6
rs = datetime(2012, 1, 1) - off
xp = datetime(2011, 12, 23)
assert rs == xp
Expand All @@ -219,12 +225,18 @@ def test_apply_large_n(self):
xp = datetime(2011, 12, 26)
assert rs == xp

off = BDay() * 10
off = self._offset() * 10
rs = datetime(2014, 1, 5) + off # see #5890
xp = datetime(2014, 1, 17)
assert rs == xp

def test_apply_corner(self):
msg = "Only know how to combine business day with datetime or timedelta"
if self._offset is BDay:
msg = "Only know how to combine business day with datetime or timedelta"
else:
msg = (
"Only know how to combine trading day "
"with datetime, datetime64 or timedelta"
)
with pytest.raises(ApplyTypeError, match=msg):
BDay().apply(BMonthEnd())
self._offset().apply(BMonthEnd())
210 changes: 4 additions & 206 deletions pandas/tests/tseries/offsets/test_custom_business_day.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,237 +2,35 @@
Tests for offsets.CustomBusinessDay / CDay
"""
from datetime import (
date,
datetime,
timedelta,
)

import numpy as np
import pytest

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

from pandas import (
DatetimeIndex,
Timedelta,
_testing as tm,
read_pickle,
)
from pandas.tests.tseries.offsets.common import (
Base,
assert_is_on_offset,
assert_offset_equal,
)
from pandas.tests.tseries.offsets.test_offsets import _ApplyCases
from pandas.tests.tseries.offsets.common import assert_offset_equal
from pandas.tests.tseries.offsets.test_business_day import TestBusinessDay

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


class TestCustomBusinessDay(Base):
class TestCustomBusinessDay(TestBusinessDay):
_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)

@pytest.mark.parametrize("reverse", [True, False])
@pytest.mark.parametrize(
"td",
[
Timedelta(hours=2),
Timedelta(hours=2).to_pytimedelta(),
Timedelta(hours=2).to_timedelta64(),
],
ids=lambda x: type(x),
)
def test_with_offset_index(self, reverse, td, request):
if reverse and isinstance(td, np.timedelta64):
mark = pytest.mark.xfail(
reason="need __array_priority__, but that causes other errors"
)
request.node.add_marker(mark)

dti = DatetimeIndex([self.d])
expected = DatetimeIndex([datetime(2008, 1, 2, 2)])

if reverse:
result = dti + (td + self.offset)
else:
result = dti + (self.offset + td)
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, day, expected = case
assert_is_on_offset(offset, day, 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")]
Expand Down