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test_fiscal.py
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"""
Tests for Fiscal Year and Fiscal Quarter offset classes
"""
from datetime import datetime
from dateutil.relativedelta import relativedelta
import pytest
from pandas._libs.tslibs.frequencies import INVALID_FREQ_ERR_MSG
from pandas import Timestamp
from pandas.tseries.frequencies import get_offset
from pandas.tseries.offsets import FY5253, FY5253Quarter
from .common import assert_offset_equal, assert_onOffset
from .test_offsets import Base, WeekDay
def makeFY5253LastOfMonthQuarter(*args, **kwds):
return FY5253Quarter(*args, variation="last", **kwds)
def makeFY5253NearestEndMonthQuarter(*args, **kwds):
return FY5253Quarter(*args, variation="nearest", **kwds)
def makeFY5253NearestEndMonth(*args, **kwds):
return FY5253(*args, variation="nearest", **kwds)
def makeFY5253LastOfMonth(*args, **kwds):
return FY5253(*args, variation="last", **kwds)
def test_get_offset_name():
assert (
makeFY5253LastOfMonthQuarter(
weekday=1, startingMonth=3, qtr_with_extra_week=4
).freqstr
== "REQ-L-MAR-TUE-4"
)
assert (
makeFY5253NearestEndMonthQuarter(
weekday=1, startingMonth=3, qtr_with_extra_week=3
).freqstr
== "REQ-N-MAR-TUE-3"
)
def test_get_offset():
with pytest.raises(ValueError, match=INVALID_FREQ_ERR_MSG):
get_offset("gibberish")
with pytest.raises(ValueError, match=INVALID_FREQ_ERR_MSG):
get_offset("QS-JAN-B")
pairs = [
("RE-N-DEC-MON", makeFY5253NearestEndMonth(weekday=0, startingMonth=12)),
("RE-L-DEC-TUE", makeFY5253LastOfMonth(weekday=1, startingMonth=12)),
(
"REQ-L-MAR-TUE-4",
makeFY5253LastOfMonthQuarter(
weekday=1, startingMonth=3, qtr_with_extra_week=4
),
),
(
"REQ-L-DEC-MON-3",
makeFY5253LastOfMonthQuarter(
weekday=0, startingMonth=12, qtr_with_extra_week=3
),
),
(
"REQ-N-DEC-MON-3",
makeFY5253NearestEndMonthQuarter(
weekday=0, startingMonth=12, qtr_with_extra_week=3
),
),
]
for name, expected in pairs:
offset = get_offset(name)
assert offset == expected, (
f"Expected {repr(name)} to yield {repr(expected)} "
f"(actual: {repr(offset)})"
)
class TestFY5253LastOfMonth(Base):
offset_lom_sat_aug = makeFY5253LastOfMonth(1, startingMonth=8, weekday=WeekDay.SAT)
offset_lom_sat_sep = makeFY5253LastOfMonth(1, startingMonth=9, weekday=WeekDay.SAT)
on_offset_cases = [
# From Wikipedia (see:
# http://en.wikipedia.org/wiki/4%E2%80%934%E2%80%935_calendar#Last_Saturday_of_the_month_at_fiscal_year_end)
(offset_lom_sat_aug, datetime(2006, 8, 26), True),
(offset_lom_sat_aug, datetime(2007, 8, 25), True),
(offset_lom_sat_aug, datetime(2008, 8, 30), True),
(offset_lom_sat_aug, datetime(2009, 8, 29), True),
(offset_lom_sat_aug, datetime(2010, 8, 28), True),
(offset_lom_sat_aug, datetime(2011, 8, 27), True),
(offset_lom_sat_aug, datetime(2012, 8, 25), True),
(offset_lom_sat_aug, datetime(2013, 8, 31), True),
(offset_lom_sat_aug, datetime(2014, 8, 30), True),
(offset_lom_sat_aug, datetime(2015, 8, 29), True),
(offset_lom_sat_aug, datetime(2016, 8, 27), True),
(offset_lom_sat_aug, datetime(2017, 8, 26), True),
(offset_lom_sat_aug, datetime(2018, 8, 25), True),
(offset_lom_sat_aug, datetime(2019, 8, 31), True),
(offset_lom_sat_aug, datetime(2006, 8, 27), False),
(offset_lom_sat_aug, datetime(2007, 8, 28), False),
(offset_lom_sat_aug, datetime(2008, 8, 31), False),
(offset_lom_sat_aug, datetime(2009, 8, 30), False),
(offset_lom_sat_aug, datetime(2010, 8, 29), False),
(offset_lom_sat_aug, datetime(2011, 8, 28), False),
(offset_lom_sat_aug, datetime(2006, 8, 25), False),
(offset_lom_sat_aug, datetime(2007, 8, 24), False),
(offset_lom_sat_aug, datetime(2008, 8, 29), False),
(offset_lom_sat_aug, datetime(2009, 8, 28), False),
(offset_lom_sat_aug, datetime(2010, 8, 27), False),
(offset_lom_sat_aug, datetime(2011, 8, 26), False),
(offset_lom_sat_aug, datetime(2019, 8, 30), False),
# From GMCR (see for example:
# http://yahoo.brand.edgar-online.com/Default.aspx?
# companyid=3184&formtypeID=7)
(offset_lom_sat_sep, datetime(2010, 9, 25), True),
(offset_lom_sat_sep, datetime(2011, 9, 24), True),
(offset_lom_sat_sep, datetime(2012, 9, 29), True),
]
@pytest.mark.parametrize("case", on_offset_cases)
def test_onOffset(self, case):
offset, dt, expected = case
assert_onOffset(offset, dt, expected)
def test_apply(self):
offset_lom_aug_sat = makeFY5253LastOfMonth(startingMonth=8, weekday=WeekDay.SAT)
offset_lom_aug_sat_1 = makeFY5253LastOfMonth(
n=1, startingMonth=8, weekday=WeekDay.SAT
)
date_seq_lom_aug_sat = [
datetime(2006, 8, 26),
datetime(2007, 8, 25),
datetime(2008, 8, 30),
datetime(2009, 8, 29),
datetime(2010, 8, 28),
datetime(2011, 8, 27),
datetime(2012, 8, 25),
datetime(2013, 8, 31),
datetime(2014, 8, 30),
datetime(2015, 8, 29),
datetime(2016, 8, 27),
]
tests = [
(offset_lom_aug_sat, date_seq_lom_aug_sat),
(offset_lom_aug_sat_1, date_seq_lom_aug_sat),
(offset_lom_aug_sat, [datetime(2006, 8, 25)] + date_seq_lom_aug_sat),
(offset_lom_aug_sat_1, [datetime(2006, 8, 27)] + date_seq_lom_aug_sat[1:]),
(
makeFY5253LastOfMonth(n=-1, startingMonth=8, weekday=WeekDay.SAT),
list(reversed(date_seq_lom_aug_sat)),
),
]
for test in tests:
offset, data = test
current = data[0]
for datum in data[1:]:
current = current + offset
assert current == datum
class TestFY5253NearestEndMonth(Base):
def test_get_year_end(self):
assert makeFY5253NearestEndMonth(
startingMonth=8, weekday=WeekDay.SAT
).get_year_end(datetime(2013, 1, 1)) == datetime(2013, 8, 31)
assert makeFY5253NearestEndMonth(
startingMonth=8, weekday=WeekDay.SUN
).get_year_end(datetime(2013, 1, 1)) == datetime(2013, 9, 1)
assert makeFY5253NearestEndMonth(
startingMonth=8, weekday=WeekDay.FRI
).get_year_end(datetime(2013, 1, 1)) == datetime(2013, 8, 30)
offset_n = FY5253(weekday=WeekDay.TUE, startingMonth=12, variation="nearest")
assert offset_n.get_year_end(datetime(2012, 1, 1)) == datetime(2013, 1, 1)
assert offset_n.get_year_end(datetime(2012, 1, 10)) == datetime(2013, 1, 1)
assert offset_n.get_year_end(datetime(2013, 1, 1)) == datetime(2013, 12, 31)
assert offset_n.get_year_end(datetime(2013, 1, 2)) == datetime(2013, 12, 31)
assert offset_n.get_year_end(datetime(2013, 1, 3)) == datetime(2013, 12, 31)
assert offset_n.get_year_end(datetime(2013, 1, 10)) == datetime(2013, 12, 31)
JNJ = FY5253(n=1, startingMonth=12, weekday=6, variation="nearest")
assert JNJ.get_year_end(datetime(2006, 1, 1)) == datetime(2006, 12, 31)
offset_lom_aug_sat = makeFY5253NearestEndMonth(
1, startingMonth=8, weekday=WeekDay.SAT
)
offset_lom_aug_thu = makeFY5253NearestEndMonth(
1, startingMonth=8, weekday=WeekDay.THU
)
offset_n = FY5253(weekday=WeekDay.TUE, startingMonth=12, variation="nearest")
on_offset_cases = [
# From Wikipedia (see:
# http://en.wikipedia.org/wiki/4%E2%80%934%E2%80%935_calendar
# #Saturday_nearest_the_end_of_month)
# 2006-09-02 2006 September 2
# 2007-09-01 2007 September 1
# 2008-08-30 2008 August 30 (leap year)
# 2009-08-29 2009 August 29
# 2010-08-28 2010 August 28
# 2011-09-03 2011 September 3
# 2012-09-01 2012 September 1 (leap year)
# 2013-08-31 2013 August 31
# 2014-08-30 2014 August 30
# 2015-08-29 2015 August 29
# 2016-09-03 2016 September 3 (leap year)
# 2017-09-02 2017 September 2
# 2018-09-01 2018 September 1
# 2019-08-31 2019 August 31
(offset_lom_aug_sat, datetime(2006, 9, 2), True),
(offset_lom_aug_sat, datetime(2007, 9, 1), True),
(offset_lom_aug_sat, datetime(2008, 8, 30), True),
(offset_lom_aug_sat, datetime(2009, 8, 29), True),
(offset_lom_aug_sat, datetime(2010, 8, 28), True),
(offset_lom_aug_sat, datetime(2011, 9, 3), True),
(offset_lom_aug_sat, datetime(2016, 9, 3), True),
(offset_lom_aug_sat, datetime(2017, 9, 2), True),
(offset_lom_aug_sat, datetime(2018, 9, 1), True),
(offset_lom_aug_sat, datetime(2019, 8, 31), True),
(offset_lom_aug_sat, datetime(2006, 8, 27), False),
(offset_lom_aug_sat, datetime(2007, 8, 28), False),
(offset_lom_aug_sat, datetime(2008, 8, 31), False),
(offset_lom_aug_sat, datetime(2009, 8, 30), False),
(offset_lom_aug_sat, datetime(2010, 8, 29), False),
(offset_lom_aug_sat, datetime(2011, 8, 28), False),
(offset_lom_aug_sat, datetime(2006, 8, 25), False),
(offset_lom_aug_sat, datetime(2007, 8, 24), False),
(offset_lom_aug_sat, datetime(2008, 8, 29), False),
(offset_lom_aug_sat, datetime(2009, 8, 28), False),
(offset_lom_aug_sat, datetime(2010, 8, 27), False),
(offset_lom_aug_sat, datetime(2011, 8, 26), False),
(offset_lom_aug_sat, datetime(2019, 8, 30), False),
# From Micron, see:
# http://google.brand.edgar-online.com/?sym=MU&formtypeID=7
(offset_lom_aug_thu, datetime(2012, 8, 30), True),
(offset_lom_aug_thu, datetime(2011, 9, 1), True),
(offset_n, datetime(2012, 12, 31), False),
(offset_n, datetime(2013, 1, 1), True),
(offset_n, datetime(2013, 1, 2), False),
]
@pytest.mark.parametrize("case", on_offset_cases)
def test_onOffset(self, case):
offset, dt, expected = case
assert_onOffset(offset, dt, expected)
def test_apply(self):
date_seq_nem_8_sat = [
datetime(2006, 9, 2),
datetime(2007, 9, 1),
datetime(2008, 8, 30),
datetime(2009, 8, 29),
datetime(2010, 8, 28),
datetime(2011, 9, 3),
]
JNJ = [
datetime(2005, 1, 2),
datetime(2006, 1, 1),
datetime(2006, 12, 31),
datetime(2007, 12, 30),
datetime(2008, 12, 28),
datetime(2010, 1, 3),
datetime(2011, 1, 2),
datetime(2012, 1, 1),
datetime(2012, 12, 30),
]
DEC_SAT = FY5253(n=-1, startingMonth=12, weekday=5, variation="nearest")
tests = [
(
makeFY5253NearestEndMonth(startingMonth=8, weekday=WeekDay.SAT),
date_seq_nem_8_sat,
),
(
makeFY5253NearestEndMonth(n=1, startingMonth=8, weekday=WeekDay.SAT),
date_seq_nem_8_sat,
),
(
makeFY5253NearestEndMonth(startingMonth=8, weekday=WeekDay.SAT),
[datetime(2006, 9, 1)] + date_seq_nem_8_sat,
),
(
makeFY5253NearestEndMonth(n=1, startingMonth=8, weekday=WeekDay.SAT),
[datetime(2006, 9, 3)] + date_seq_nem_8_sat[1:],
),
(
makeFY5253NearestEndMonth(n=-1, startingMonth=8, weekday=WeekDay.SAT),
list(reversed(date_seq_nem_8_sat)),
),
(
makeFY5253NearestEndMonth(n=1, startingMonth=12, weekday=WeekDay.SUN),
JNJ,
),
(
makeFY5253NearestEndMonth(n=-1, startingMonth=12, weekday=WeekDay.SUN),
list(reversed(JNJ)),
),
(
makeFY5253NearestEndMonth(n=1, startingMonth=12, weekday=WeekDay.SUN),
[datetime(2005, 1, 2), datetime(2006, 1, 1)],
),
(
makeFY5253NearestEndMonth(n=1, startingMonth=12, weekday=WeekDay.SUN),
[datetime(2006, 1, 2), datetime(2006, 12, 31)],
),
(DEC_SAT, [datetime(2013, 1, 15), datetime(2012, 12, 29)]),
]
for test in tests:
offset, data = test
current = data[0]
for datum in data[1:]:
current = current + offset
assert current == datum
class TestFY5253LastOfMonthQuarter(Base):
def test_isAnchored(self):
assert makeFY5253LastOfMonthQuarter(
startingMonth=1, weekday=WeekDay.SAT, qtr_with_extra_week=4
).isAnchored()
assert makeFY5253LastOfMonthQuarter(
weekday=WeekDay.SAT, startingMonth=3, qtr_with_extra_week=4
).isAnchored()
assert not makeFY5253LastOfMonthQuarter(
2, startingMonth=1, weekday=WeekDay.SAT, qtr_with_extra_week=4
).isAnchored()
def test_equality(self):
assert makeFY5253LastOfMonthQuarter(
startingMonth=1, weekday=WeekDay.SAT, qtr_with_extra_week=4
) == makeFY5253LastOfMonthQuarter(
startingMonth=1, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
assert makeFY5253LastOfMonthQuarter(
startingMonth=1, weekday=WeekDay.SAT, qtr_with_extra_week=4
) != makeFY5253LastOfMonthQuarter(
startingMonth=1, weekday=WeekDay.SUN, qtr_with_extra_week=4
)
assert makeFY5253LastOfMonthQuarter(
startingMonth=1, weekday=WeekDay.SAT, qtr_with_extra_week=4
) != makeFY5253LastOfMonthQuarter(
startingMonth=2, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
def test_offset(self):
offset = makeFY5253LastOfMonthQuarter(
1, startingMonth=9, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
offset2 = makeFY5253LastOfMonthQuarter(
2, startingMonth=9, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
offset4 = makeFY5253LastOfMonthQuarter(
4, startingMonth=9, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
offset_neg1 = makeFY5253LastOfMonthQuarter(
-1, startingMonth=9, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
offset_neg2 = makeFY5253LastOfMonthQuarter(
-2, startingMonth=9, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
GMCR = [
datetime(2010, 3, 27),
datetime(2010, 6, 26),
datetime(2010, 9, 25),
datetime(2010, 12, 25),
datetime(2011, 3, 26),
datetime(2011, 6, 25),
datetime(2011, 9, 24),
datetime(2011, 12, 24),
datetime(2012, 3, 24),
datetime(2012, 6, 23),
datetime(2012, 9, 29),
datetime(2012, 12, 29),
datetime(2013, 3, 30),
datetime(2013, 6, 29),
]
assert_offset_equal(offset, base=GMCR[0], expected=GMCR[1])
assert_offset_equal(
offset, base=GMCR[0] + relativedelta(days=-1), expected=GMCR[0]
)
assert_offset_equal(offset, base=GMCR[1], expected=GMCR[2])
assert_offset_equal(offset2, base=GMCR[0], expected=GMCR[2])
assert_offset_equal(offset4, base=GMCR[0], expected=GMCR[4])
assert_offset_equal(offset_neg1, base=GMCR[-1], expected=GMCR[-2])
assert_offset_equal(
offset_neg1, base=GMCR[-1] + relativedelta(days=+1), expected=GMCR[-1]
)
assert_offset_equal(offset_neg2, base=GMCR[-1], expected=GMCR[-3])
date = GMCR[0] + relativedelta(days=-1)
for expected in GMCR:
assert_offset_equal(offset, date, expected)
date = date + offset
date = GMCR[-1] + relativedelta(days=+1)
for expected in reversed(GMCR):
assert_offset_equal(offset_neg1, date, expected)
date = date + offset_neg1
lomq_aug_sat_4 = makeFY5253LastOfMonthQuarter(
1, startingMonth=8, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
lomq_sep_sat_4 = makeFY5253LastOfMonthQuarter(
1, startingMonth=9, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
on_offset_cases = [
# From Wikipedia
(lomq_aug_sat_4, datetime(2006, 8, 26), True),
(lomq_aug_sat_4, datetime(2007, 8, 25), True),
(lomq_aug_sat_4, datetime(2008, 8, 30), True),
(lomq_aug_sat_4, datetime(2009, 8, 29), True),
(lomq_aug_sat_4, datetime(2010, 8, 28), True),
(lomq_aug_sat_4, datetime(2011, 8, 27), True),
(lomq_aug_sat_4, datetime(2019, 8, 31), True),
(lomq_aug_sat_4, datetime(2006, 8, 27), False),
(lomq_aug_sat_4, datetime(2007, 8, 28), False),
(lomq_aug_sat_4, datetime(2008, 8, 31), False),
(lomq_aug_sat_4, datetime(2009, 8, 30), False),
(lomq_aug_sat_4, datetime(2010, 8, 29), False),
(lomq_aug_sat_4, datetime(2011, 8, 28), False),
(lomq_aug_sat_4, datetime(2006, 8, 25), False),
(lomq_aug_sat_4, datetime(2007, 8, 24), False),
(lomq_aug_sat_4, datetime(2008, 8, 29), False),
(lomq_aug_sat_4, datetime(2009, 8, 28), False),
(lomq_aug_sat_4, datetime(2010, 8, 27), False),
(lomq_aug_sat_4, datetime(2011, 8, 26), False),
(lomq_aug_sat_4, datetime(2019, 8, 30), False),
# From GMCR
(lomq_sep_sat_4, datetime(2010, 9, 25), True),
(lomq_sep_sat_4, datetime(2011, 9, 24), True),
(lomq_sep_sat_4, datetime(2012, 9, 29), True),
(lomq_sep_sat_4, datetime(2013, 6, 29), True),
(lomq_sep_sat_4, datetime(2012, 6, 23), True),
(lomq_sep_sat_4, datetime(2012, 6, 30), False),
(lomq_sep_sat_4, datetime(2013, 3, 30), True),
(lomq_sep_sat_4, datetime(2012, 3, 24), True),
(lomq_sep_sat_4, datetime(2012, 12, 29), True),
(lomq_sep_sat_4, datetime(2011, 12, 24), True),
# INTC (extra week in Q1)
# See: http://www.intc.com/releasedetail.cfm?ReleaseID=542844
(
makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
),
datetime(2011, 4, 2),
True,
),
# see: http://google.brand.edgar-online.com/?sym=INTC&formtypeID=7
(
makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
),
datetime(2012, 12, 29),
True,
),
(
makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
),
datetime(2011, 12, 31),
True,
),
(
makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
),
datetime(2010, 12, 25),
True,
),
]
@pytest.mark.parametrize("case", on_offset_cases)
def test_onOffset(self, case):
offset, dt, expected = case
assert_onOffset(offset, dt, expected)
def test_year_has_extra_week(self):
# End of long Q1
assert makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(2011, 4, 2))
# Start of long Q1
assert makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(2010, 12, 26))
# End of year before year with long Q1
assert not makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(2010, 12, 25))
for year in [
x for x in range(1994, 2011 + 1) if x not in [2011, 2005, 2000, 1994]
]:
assert not makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(year, 4, 2))
# Other long years
assert makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(2005, 4, 2))
assert makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(2000, 4, 2))
assert makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
).year_has_extra_week(datetime(1994, 4, 2))
def test_get_weeks(self):
sat_dec_1 = makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=1
)
sat_dec_4 = makeFY5253LastOfMonthQuarter(
1, startingMonth=12, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
assert sat_dec_1.get_weeks(datetime(2011, 4, 2)) == [14, 13, 13, 13]
assert sat_dec_4.get_weeks(datetime(2011, 4, 2)) == [13, 13, 13, 14]
assert sat_dec_1.get_weeks(datetime(2010, 12, 25)) == [13, 13, 13, 13]
class TestFY5253NearestEndMonthQuarter(Base):
offset_nem_sat_aug_4 = makeFY5253NearestEndMonthQuarter(
1, startingMonth=8, weekday=WeekDay.SAT, qtr_with_extra_week=4
)
offset_nem_thu_aug_4 = makeFY5253NearestEndMonthQuarter(
1, startingMonth=8, weekday=WeekDay.THU, qtr_with_extra_week=4
)
offset_n = FY5253(weekday=WeekDay.TUE, startingMonth=12, variation="nearest")
on_offset_cases = [
# From Wikipedia
(offset_nem_sat_aug_4, datetime(2006, 9, 2), True),
(offset_nem_sat_aug_4, datetime(2007, 9, 1), True),
(offset_nem_sat_aug_4, datetime(2008, 8, 30), True),
(offset_nem_sat_aug_4, datetime(2009, 8, 29), True),
(offset_nem_sat_aug_4, datetime(2010, 8, 28), True),
(offset_nem_sat_aug_4, datetime(2011, 9, 3), True),
(offset_nem_sat_aug_4, datetime(2016, 9, 3), True),
(offset_nem_sat_aug_4, datetime(2017, 9, 2), True),
(offset_nem_sat_aug_4, datetime(2018, 9, 1), True),
(offset_nem_sat_aug_4, datetime(2019, 8, 31), True),
(offset_nem_sat_aug_4, datetime(2006, 8, 27), False),
(offset_nem_sat_aug_4, datetime(2007, 8, 28), False),
(offset_nem_sat_aug_4, datetime(2008, 8, 31), False),
(offset_nem_sat_aug_4, datetime(2009, 8, 30), False),
(offset_nem_sat_aug_4, datetime(2010, 8, 29), False),
(offset_nem_sat_aug_4, datetime(2011, 8, 28), False),
(offset_nem_sat_aug_4, datetime(2006, 8, 25), False),
(offset_nem_sat_aug_4, datetime(2007, 8, 24), False),
(offset_nem_sat_aug_4, datetime(2008, 8, 29), False),
(offset_nem_sat_aug_4, datetime(2009, 8, 28), False),
(offset_nem_sat_aug_4, datetime(2010, 8, 27), False),
(offset_nem_sat_aug_4, datetime(2011, 8, 26), False),
(offset_nem_sat_aug_4, datetime(2019, 8, 30), False),
# From Micron, see:
# http://google.brand.edgar-online.com/?sym=MU&formtypeID=7
(offset_nem_thu_aug_4, datetime(2012, 8, 30), True),
(offset_nem_thu_aug_4, datetime(2011, 9, 1), True),
# See: http://google.brand.edgar-online.com/?sym=MU&formtypeID=13
(offset_nem_thu_aug_4, datetime(2013, 5, 30), True),
(offset_nem_thu_aug_4, datetime(2013, 2, 28), True),
(offset_nem_thu_aug_4, datetime(2012, 11, 29), True),
(offset_nem_thu_aug_4, datetime(2012, 5, 31), True),
(offset_nem_thu_aug_4, datetime(2007, 3, 1), True),
(offset_nem_thu_aug_4, datetime(1994, 3, 3), True),
(offset_n, datetime(2012, 12, 31), False),
(offset_n, datetime(2013, 1, 1), True),
(offset_n, datetime(2013, 1, 2), False),
]
@pytest.mark.parametrize("case", on_offset_cases)
def test_onOffset(self, case):
offset, dt, expected = case
assert_onOffset(offset, dt, expected)
def test_offset(self):
offset = makeFY5253NearestEndMonthQuarter(
1, startingMonth=8, weekday=WeekDay.THU, qtr_with_extra_week=4
)
MU = [
datetime(2012, 5, 31),
datetime(2012, 8, 30),
datetime(2012, 11, 29),
datetime(2013, 2, 28),
datetime(2013, 5, 30),
]
date = MU[0] + relativedelta(days=-1)
for expected in MU:
assert_offset_equal(offset, date, expected)
date = date + offset
assert_offset_equal(offset, datetime(2012, 5, 31), datetime(2012, 8, 30))
assert_offset_equal(offset, datetime(2012, 5, 30), datetime(2012, 5, 31))
offset2 = FY5253Quarter(
weekday=5, startingMonth=12, variation="last", qtr_with_extra_week=4
)
assert_offset_equal(offset2, datetime(2013, 1, 15), datetime(2013, 3, 30))
def test_bunched_yearends():
# GH#14774 cases with two fiscal year-ends in the same calendar-year
fy = FY5253(n=1, weekday=5, startingMonth=12, variation="nearest")
dt = Timestamp("2004-01-01")
assert fy.rollback(dt) == Timestamp("2002-12-28")
assert (-fy).apply(dt) == Timestamp("2002-12-28")
assert dt - fy == Timestamp("2002-12-28")
assert fy.rollforward(dt) == Timestamp("2004-01-03")
assert fy.apply(dt) == Timestamp("2004-01-03")
assert fy + dt == Timestamp("2004-01-03")
assert dt + fy == Timestamp("2004-01-03")
# Same thing, but starting from a Timestamp in the previous year.
dt = Timestamp("2003-12-31")
assert fy.rollback(dt) == Timestamp("2002-12-28")
assert (-fy).apply(dt) == Timestamp("2002-12-28")
assert dt - fy == Timestamp("2002-12-28")
def test_fy5253_last_onoffset():
# GH#18877 dates on the year-end but not normalized to midnight
offset = FY5253(n=-5, startingMonth=5, variation="last", weekday=0)
ts = Timestamp("1984-05-28 06:29:43.955911354+0200", tz="Europe/San_Marino")
fast = offset.onOffset(ts)
slow = (ts + offset) - offset == ts
assert fast == slow
def test_fy5253_nearest_onoffset():
# GH#18877 dates on the year-end but not normalized to midnight
offset = FY5253(n=3, startingMonth=7, variation="nearest", weekday=2)
ts = Timestamp("2032-07-28 00:12:59.035729419+0000", tz="Africa/Dakar")
fast = offset.onOffset(ts)
slow = (ts + offset) - offset == ts
assert fast == slow
def test_fy5253qtr_onoffset_nearest():
# GH#19036
ts = Timestamp("1985-09-02 23:57:46.232550356-0300", tz="Atlantic/Bermuda")
offset = FY5253Quarter(
n=3, qtr_with_extra_week=1, startingMonth=2, variation="nearest", weekday=0
)
fast = offset.onOffset(ts)
slow = (ts + offset) - offset == ts
assert fast == slow
def test_fy5253qtr_onoffset_last():
# GH#19036
offset = FY5253Quarter(
n=-2, qtr_with_extra_week=1, startingMonth=7, variation="last", weekday=2
)
ts = Timestamp("2011-01-26 19:03:40.331096129+0200", tz="Africa/Windhoek")
slow = (ts + offset) - offset == ts
fast = offset.onOffset(ts)
assert fast == slow