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test_period.py
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import pytest
import pytz
import numpy as np
from datetime import datetime, date, timedelta
import pandas as pd
import pandas.util.testing as tm
import pandas.core.indexes.period as period
from pandas.compat import text_type, iteritems
from pandas.compat.numpy import np_datetime64_compat
from pandas._libs import tslib, period as libperiod
from pandas import Period, Timestamp, offsets
from pandas.tseries.frequencies import DAYS, MONTHS
class TestPeriodProperties(object):
"Test properties such as year, month, weekday, etc...."
def test_is_leap_year(self):
# GH 13727
for freq in ['A', 'M', 'D', 'H']:
p = Period('2000-01-01 00:00:00', freq=freq)
assert p.is_leap_year
assert isinstance(p.is_leap_year, bool)
p = Period('1999-01-01 00:00:00', freq=freq)
assert not p.is_leap_year
p = Period('2004-01-01 00:00:00', freq=freq)
assert p.is_leap_year
p = Period('2100-01-01 00:00:00', freq=freq)
assert not p.is_leap_year
def test_quarterly_negative_ordinals(self):
p = Period(ordinal=-1, freq='Q-DEC')
assert p.year == 1969
assert p.quarter == 4
assert isinstance(p, Period)
p = Period(ordinal=-2, freq='Q-DEC')
assert p.year == 1969
assert p.quarter == 3
assert isinstance(p, Period)
p = Period(ordinal=-2, freq='M')
assert p.year == 1969
assert p.month == 11
assert isinstance(p, Period)
def test_period_cons_quarterly(self):
# bugs in scikits.timeseries
for month in MONTHS:
freq = 'Q-%s' % month
exp = Period('1989Q3', freq=freq)
assert '1989Q3' in str(exp)
stamp = exp.to_timestamp('D', how='end')
p = Period(stamp, freq=freq)
assert p == exp
stamp = exp.to_timestamp('3D', how='end')
p = Period(stamp, freq=freq)
assert p == exp
def test_period_cons_annual(self):
# bugs in scikits.timeseries
for month in MONTHS:
freq = 'A-%s' % month
exp = Period('1989', freq=freq)
stamp = exp.to_timestamp('D', how='end') + timedelta(days=30)
p = Period(stamp, freq=freq)
assert p == exp + 1
assert isinstance(p, Period)
def test_period_cons_weekly(self):
for num in range(10, 17):
daystr = '2011-02-%d' % num
for day in DAYS:
freq = 'W-%s' % day
result = Period(daystr, freq=freq)
expected = Period(daystr, freq='D').asfreq(freq)
assert result == expected
assert isinstance(result, Period)
def test_period_from_ordinal(self):
p = pd.Period('2011-01', freq='M')
res = pd.Period._from_ordinal(p.ordinal, freq='M')
assert p == res
assert isinstance(res, Period)
def test_period_cons_nat(self):
p = Period('NaT', freq='M')
assert p is pd.NaT
p = Period('nat', freq='W-SUN')
assert p is pd.NaT
p = Period(tslib.iNaT, freq='D')
assert p is pd.NaT
p = Period(tslib.iNaT, freq='3D')
assert p is pd.NaT
p = Period(tslib.iNaT, freq='1D1H')
assert p is pd.NaT
p = Period('NaT')
assert p is pd.NaT
p = Period(tslib.iNaT)
assert p is pd.NaT
def test_period_cons_mult(self):
p1 = Period('2011-01', freq='3M')
p2 = Period('2011-01', freq='M')
assert p1.ordinal == p2.ordinal
assert p1.freq == offsets.MonthEnd(3)
assert p1.freqstr == '3M'
assert p2.freq == offsets.MonthEnd()
assert p2.freqstr == 'M'
result = p1 + 1
assert result.ordinal == (p2 + 3).ordinal
assert result.freq == p1.freq
assert result.freqstr == '3M'
result = p1 - 1
assert result.ordinal == (p2 - 3).ordinal
assert result.freq == p1.freq
assert result.freqstr == '3M'
msg = ('Frequency must be positive, because it'
' represents span: -3M')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='-3M')
msg = ('Frequency must be positive, because it' ' represents span: 0M')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='0M')
def test_period_cons_combined(self):
p = [(Period('2011-01', freq='1D1H'),
Period('2011-01', freq='1H1D'),
Period('2011-01', freq='H')),
(Period(ordinal=1, freq='1D1H'),
Period(ordinal=1, freq='1H1D'),
Period(ordinal=1, freq='H'))]
for p1, p2, p3 in p:
assert p1.ordinal == p3.ordinal
assert p2.ordinal == p3.ordinal
assert p1.freq == offsets.Hour(25)
assert p1.freqstr == '25H'
assert p2.freq == offsets.Hour(25)
assert p2.freqstr == '25H'
assert p3.freq == offsets.Hour()
assert p3.freqstr == 'H'
result = p1 + 1
assert result.ordinal == (p3 + 25).ordinal
assert result.freq == p1.freq
assert result.freqstr == '25H'
result = p2 + 1
assert result.ordinal == (p3 + 25).ordinal
assert result.freq == p2.freq
assert result.freqstr == '25H'
result = p1 - 1
assert result.ordinal == (p3 - 25).ordinal
assert result.freq == p1.freq
assert result.freqstr == '25H'
result = p2 - 1
assert result.ordinal == (p3 - 25).ordinal
assert result.freq == p2.freq
assert result.freqstr == '25H'
msg = ('Frequency must be positive, because it'
' represents span: -25H')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='-1D1H')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='-1H1D')
with tm.assert_raises_regex(ValueError, msg):
Period(ordinal=1, freq='-1D1H')
with tm.assert_raises_regex(ValueError, msg):
Period(ordinal=1, freq='-1H1D')
msg = ('Frequency must be positive, because it'
' represents span: 0D')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='0D0H')
with tm.assert_raises_regex(ValueError, msg):
Period(ordinal=1, freq='0D0H')
# You can only combine together day and intraday offsets
msg = ('Invalid frequency: 1W1D')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='1W1D')
msg = ('Invalid frequency: 1D1W')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='1D1W')
def test_timestamp_tz_arg(self):
for case in ['Europe/Brussels', 'Asia/Tokyo', 'US/Pacific']:
p = Period('1/1/2005', freq='M').to_timestamp(tz=case)
exp = Timestamp('1/1/2005', tz='UTC').tz_convert(case)
exp_zone = pytz.timezone(case).normalize(p)
assert p == exp
assert p.tz == exp_zone.tzinfo
assert p.tz == exp.tz
p = Period('1/1/2005', freq='3H').to_timestamp(tz=case)
exp = Timestamp('1/1/2005', tz='UTC').tz_convert(case)
exp_zone = pytz.timezone(case).normalize(p)
assert p == exp
assert p.tz == exp_zone.tzinfo
assert p.tz == exp.tz
p = Period('1/1/2005', freq='A').to_timestamp(freq='A', tz=case)
exp = Timestamp('31/12/2005', tz='UTC').tz_convert(case)
exp_zone = pytz.timezone(case).normalize(p)
assert p == exp
assert p.tz == exp_zone.tzinfo
assert p.tz == exp.tz
p = Period('1/1/2005', freq='A').to_timestamp(freq='3H', tz=case)
exp = Timestamp('1/1/2005', tz='UTC').tz_convert(case)
exp_zone = pytz.timezone(case).normalize(p)
assert p == exp
assert p.tz == exp_zone.tzinfo
assert p.tz == exp.tz
def test_timestamp_tz_arg_dateutil(self):
from pandas._libs.tslib import _dateutil_gettz as gettz
from pandas._libs.tslib import maybe_get_tz
for case in ['dateutil/Europe/Brussels', 'dateutil/Asia/Tokyo',
'dateutil/US/Pacific']:
p = Period('1/1/2005', freq='M').to_timestamp(
tz=maybe_get_tz(case))
exp = Timestamp('1/1/2005', tz='UTC').tz_convert(case)
assert p == exp
assert p.tz == gettz(case.split('/', 1)[1])
assert p.tz == exp.tz
p = Period('1/1/2005',
freq='M').to_timestamp(freq='3H', tz=maybe_get_tz(case))
exp = Timestamp('1/1/2005', tz='UTC').tz_convert(case)
assert p == exp
assert p.tz == gettz(case.split('/', 1)[1])
assert p.tz == exp.tz
def test_timestamp_tz_arg_dateutil_from_string(self):
from pandas._libs.tslib import _dateutil_gettz as gettz
p = Period('1/1/2005',
freq='M').to_timestamp(tz='dateutil/Europe/Brussels')
assert p.tz == gettz('Europe/Brussels')
def test_timestamp_mult(self):
p = pd.Period('2011-01', freq='M')
assert p.to_timestamp(how='S') == pd.Timestamp('2011-01-01')
assert p.to_timestamp(how='E') == pd.Timestamp('2011-01-31')
p = pd.Period('2011-01', freq='3M')
assert p.to_timestamp(how='S') == pd.Timestamp('2011-01-01')
assert p.to_timestamp(how='E') == pd.Timestamp('2011-03-31')
def test_construction(self):
i1 = Period('1/1/2005', freq='M')
i2 = Period('Jan 2005')
assert i1 == i2
i1 = Period('2005', freq='A')
i2 = Period('2005')
i3 = Period('2005', freq='a')
assert i1 == i2
assert i1 == i3
i4 = Period('2005', freq='M')
i5 = Period('2005', freq='m')
pytest.raises(ValueError, i1.__ne__, i4)
assert i4 == i5
i1 = Period.now('Q')
i2 = Period(datetime.now(), freq='Q')
i3 = Period.now('q')
assert i1 == i2
assert i1 == i3
i1 = Period('1982', freq='min')
i2 = Period('1982', freq='MIN')
assert i1 == i2
i2 = Period('1982', freq=('Min', 1))
assert i1 == i2
i1 = Period(year=2005, month=3, day=1, freq='D')
i2 = Period('3/1/2005', freq='D')
assert i1 == i2
i3 = Period(year=2005, month=3, day=1, freq='d')
assert i1 == i3
i1 = Period('2007-01-01 09:00:00.001')
expected = Period(datetime(2007, 1, 1, 9, 0, 0, 1000), freq='L')
assert i1 == expected
expected = Period(np_datetime64_compat(
'2007-01-01 09:00:00.001Z'), freq='L')
assert i1 == expected
i1 = Period('2007-01-01 09:00:00.00101')
expected = Period(datetime(2007, 1, 1, 9, 0, 0, 1010), freq='U')
assert i1 == expected
expected = Period(np_datetime64_compat('2007-01-01 09:00:00.00101Z'),
freq='U')
assert i1 == expected
pytest.raises(ValueError, Period, ordinal=200701)
pytest.raises(ValueError, Period, '2007-1-1', freq='X')
def test_construction_bday(self):
# Biz day construction, roll forward if non-weekday
i1 = Period('3/10/12', freq='B')
i2 = Period('3/10/12', freq='D')
assert i1 == i2.asfreq('B')
i2 = Period('3/11/12', freq='D')
assert i1 == i2.asfreq('B')
i2 = Period('3/12/12', freq='D')
assert i1 == i2.asfreq('B')
i3 = Period('3/10/12', freq='b')
assert i1 == i3
i1 = Period(year=2012, month=3, day=10, freq='B')
i2 = Period('3/12/12', freq='B')
assert i1 == i2
def test_construction_quarter(self):
i1 = Period(year=2005, quarter=1, freq='Q')
i2 = Period('1/1/2005', freq='Q')
assert i1 == i2
i1 = Period(year=2005, quarter=3, freq='Q')
i2 = Period('9/1/2005', freq='Q')
assert i1 == i2
i1 = Period('2005Q1')
i2 = Period(year=2005, quarter=1, freq='Q')
i3 = Period('2005q1')
assert i1 == i2
assert i1 == i3
i1 = Period('05Q1')
assert i1 == i2
lower = Period('05q1')
assert i1 == lower
i1 = Period('1Q2005')
assert i1 == i2
lower = Period('1q2005')
assert i1 == lower
i1 = Period('1Q05')
assert i1 == i2
lower = Period('1q05')
assert i1 == lower
i1 = Period('4Q1984')
assert i1.year == 1984
lower = Period('4q1984')
assert i1 == lower
def test_construction_month(self):
expected = Period('2007-01', freq='M')
i1 = Period('200701', freq='M')
assert i1 == expected
i1 = Period('200701', freq='M')
assert i1 == expected
i1 = Period(200701, freq='M')
assert i1 == expected
i1 = Period(ordinal=200701, freq='M')
assert i1.year == 18695
i1 = Period(datetime(2007, 1, 1), freq='M')
i2 = Period('200701', freq='M')
assert i1 == i2
i1 = Period(date(2007, 1, 1), freq='M')
i2 = Period(datetime(2007, 1, 1), freq='M')
i3 = Period(np.datetime64('2007-01-01'), freq='M')
i4 = Period(np_datetime64_compat('2007-01-01 00:00:00Z'), freq='M')
i5 = Period(np_datetime64_compat('2007-01-01 00:00:00.000Z'), freq='M')
assert i1 == i2
assert i1 == i3
assert i1 == i4
assert i1 == i5
def test_period_constructor_offsets(self):
assert (Period('1/1/2005', freq=offsets.MonthEnd()) ==
Period('1/1/2005', freq='M'))
assert (Period('2005', freq=offsets.YearEnd()) ==
Period('2005', freq='A'))
assert (Period('2005', freq=offsets.MonthEnd()) ==
Period('2005', freq='M'))
assert (Period('3/10/12', freq=offsets.BusinessDay()) ==
Period('3/10/12', freq='B'))
assert (Period('3/10/12', freq=offsets.Day()) ==
Period('3/10/12', freq='D'))
assert (Period(year=2005, quarter=1,
freq=offsets.QuarterEnd(startingMonth=12)) ==
Period(year=2005, quarter=1, freq='Q'))
assert (Period(year=2005, quarter=2,
freq=offsets.QuarterEnd(startingMonth=12)) ==
Period(year=2005, quarter=2, freq='Q'))
assert (Period(year=2005, month=3, day=1, freq=offsets.Day()) ==
Period(year=2005, month=3, day=1, freq='D'))
assert (Period(year=2012, month=3, day=10, freq=offsets.BDay()) ==
Period(year=2012, month=3, day=10, freq='B'))
expected = Period('2005-03-01', freq='3D')
assert (Period(year=2005, month=3, day=1,
freq=offsets.Day(3)) == expected)
assert Period(year=2005, month=3, day=1, freq='3D') == expected
assert (Period(year=2012, month=3, day=10,
freq=offsets.BDay(3)) ==
Period(year=2012, month=3, day=10, freq='3B'))
assert (Period(200701, freq=offsets.MonthEnd()) ==
Period(200701, freq='M'))
i1 = Period(ordinal=200701, freq=offsets.MonthEnd())
i2 = Period(ordinal=200701, freq='M')
assert i1 == i2
assert i1.year == 18695
assert i2.year == 18695
i1 = Period(datetime(2007, 1, 1), freq='M')
i2 = Period('200701', freq='M')
assert i1 == i2
i1 = Period(date(2007, 1, 1), freq='M')
i2 = Period(datetime(2007, 1, 1), freq='M')
i3 = Period(np.datetime64('2007-01-01'), freq='M')
i4 = Period(np_datetime64_compat('2007-01-01 00:00:00Z'), freq='M')
i5 = Period(np_datetime64_compat('2007-01-01 00:00:00.000Z'), freq='M')
assert i1 == i2
assert i1 == i3
assert i1 == i4
assert i1 == i5
i1 = Period('2007-01-01 09:00:00.001')
expected = Period(datetime(2007, 1, 1, 9, 0, 0, 1000), freq='L')
assert i1 == expected
expected = Period(np_datetime64_compat(
'2007-01-01 09:00:00.001Z'), freq='L')
assert i1 == expected
i1 = Period('2007-01-01 09:00:00.00101')
expected = Period(datetime(2007, 1, 1, 9, 0, 0, 1010), freq='U')
assert i1 == expected
expected = Period(np_datetime64_compat('2007-01-01 09:00:00.00101Z'),
freq='U')
assert i1 == expected
pytest.raises(ValueError, Period, ordinal=200701)
pytest.raises(ValueError, Period, '2007-1-1', freq='X')
def test_freq_str(self):
i1 = Period('1982', freq='Min')
assert i1.freq == offsets.Minute()
assert i1.freqstr == 'T'
def test_period_deprecated_freq(self):
cases = {"M": ["MTH", "MONTH", "MONTHLY", "Mth", "month", "monthly"],
"B": ["BUS", "BUSINESS", "BUSINESSLY", "WEEKDAY", "bus"],
"D": ["DAY", "DLY", "DAILY", "Day", "Dly", "Daily"],
"H": ["HR", "HOUR", "HRLY", "HOURLY", "hr", "Hour", "HRly"],
"T": ["minute", "MINUTE", "MINUTELY", "minutely"],
"S": ["sec", "SEC", "SECOND", "SECONDLY", "second"],
"L": ["MILLISECOND", "MILLISECONDLY", "millisecond"],
"U": ["MICROSECOND", "MICROSECONDLY", "microsecond"],
"N": ["NANOSECOND", "NANOSECONDLY", "nanosecond"]}
msg = pd.tseries.frequencies._INVALID_FREQ_ERROR
for exp, freqs in iteritems(cases):
for freq in freqs:
with tm.assert_raises_regex(ValueError, msg):
Period('2016-03-01 09:00', freq=freq)
with tm.assert_raises_regex(ValueError, msg):
Period(ordinal=1, freq=freq)
# check supported freq-aliases still works
p1 = Period('2016-03-01 09:00', freq=exp)
p2 = Period(ordinal=1, freq=exp)
assert isinstance(p1, Period)
assert isinstance(p2, Period)
def test_hash(self):
assert (hash(Period('2011-01', freq='M')) ==
hash(Period('2011-01', freq='M')))
assert (hash(Period('2011-01-01', freq='D')) !=
hash(Period('2011-01', freq='M')))
assert (hash(Period('2011-01', freq='3M')) !=
hash(Period('2011-01', freq='2M')))
assert (hash(Period('2011-01', freq='M')) !=
hash(Period('2011-02', freq='M')))
def test_repr(self):
p = Period('Jan-2000')
assert '2000-01' in repr(p)
p = Period('2000-12-15')
assert '2000-12-15' in repr(p)
def test_repr_nat(self):
p = Period('nat', freq='M')
assert repr(tslib.NaT) in repr(p)
def test_millisecond_repr(self):
p = Period('2000-01-01 12:15:02.123')
assert repr(p) == "Period('2000-01-01 12:15:02.123', 'L')"
def test_microsecond_repr(self):
p = Period('2000-01-01 12:15:02.123567')
assert repr(p) == "Period('2000-01-01 12:15:02.123567', 'U')"
def test_strftime(self):
p = Period('2000-1-1 12:34:12', freq='S')
res = p.strftime('%Y-%m-%d %H:%M:%S')
assert res == '2000-01-01 12:34:12'
assert isinstance(res, text_type) # GH3363
def test_sub_delta(self):
left, right = Period('2011', freq='A'), Period('2007', freq='A')
result = left - right
assert result == 4
with pytest.raises(period.IncompatibleFrequency):
left - Period('2007-01', freq='M')
def test_to_timestamp(self):
p = Period('1982', freq='A')
start_ts = p.to_timestamp(how='S')
aliases = ['s', 'StarT', 'BEGIn']
for a in aliases:
assert start_ts == p.to_timestamp('D', how=a)
# freq with mult should not affect to the result
assert start_ts == p.to_timestamp('3D', how=a)
end_ts = p.to_timestamp(how='E')
aliases = ['e', 'end', 'FINIsH']
for a in aliases:
assert end_ts == p.to_timestamp('D', how=a)
assert end_ts == p.to_timestamp('3D', how=a)
from_lst = ['A', 'Q', 'M', 'W', 'B', 'D', 'H', 'Min', 'S']
def _ex(p):
return Timestamp((p + 1).start_time.value - 1)
for i, fcode in enumerate(from_lst):
p = Period('1982', freq=fcode)
result = p.to_timestamp().to_period(fcode)
assert result == p
assert p.start_time == p.to_timestamp(how='S')
assert p.end_time == _ex(p)
# Frequency other than daily
p = Period('1985', freq='A')
result = p.to_timestamp('H', how='end')
expected = datetime(1985, 12, 31, 23)
assert result == expected
result = p.to_timestamp('3H', how='end')
assert result == expected
result = p.to_timestamp('T', how='end')
expected = datetime(1985, 12, 31, 23, 59)
assert result == expected
result = p.to_timestamp('2T', how='end')
assert result == expected
result = p.to_timestamp(how='end')
expected = datetime(1985, 12, 31)
assert result == expected
expected = datetime(1985, 1, 1)
result = p.to_timestamp('H', how='start')
assert result == expected
result = p.to_timestamp('T', how='start')
assert result == expected
result = p.to_timestamp('S', how='start')
assert result == expected
result = p.to_timestamp('3H', how='start')
assert result == expected
result = p.to_timestamp('5S', how='start')
assert result == expected
def test_start_time(self):
freq_lst = ['A', 'Q', 'M', 'D', 'H', 'T', 'S']
xp = datetime(2012, 1, 1)
for f in freq_lst:
p = Period('2012', freq=f)
assert p.start_time == xp
assert Period('2012', freq='B').start_time == datetime(2012, 1, 2)
assert Period('2012', freq='W').start_time == datetime(2011, 12, 26)
def test_end_time(self):
p = Period('2012', freq='A')
def _ex(*args):
return Timestamp(Timestamp(datetime(*args)).value - 1)
xp = _ex(2013, 1, 1)
assert xp == p.end_time
p = Period('2012', freq='Q')
xp = _ex(2012, 4, 1)
assert xp == p.end_time
p = Period('2012', freq='M')
xp = _ex(2012, 2, 1)
assert xp == p.end_time
p = Period('2012', freq='D')
xp = _ex(2012, 1, 2)
assert xp == p.end_time
p = Period('2012', freq='H')
xp = _ex(2012, 1, 1, 1)
assert xp == p.end_time
p = Period('2012', freq='B')
xp = _ex(2012, 1, 3)
assert xp == p.end_time
p = Period('2012', freq='W')
xp = _ex(2012, 1, 2)
assert xp == p.end_time
# Test for GH 11738
p = Period('2012', freq='15D')
xp = _ex(2012, 1, 16)
assert xp == p.end_time
p = Period('2012', freq='1D1H')
xp = _ex(2012, 1, 2, 1)
assert xp == p.end_time
p = Period('2012', freq='1H1D')
xp = _ex(2012, 1, 2, 1)
assert xp == p.end_time
def test_anchor_week_end_time(self):
def _ex(*args):
return Timestamp(Timestamp(datetime(*args)).value - 1)
p = Period('2013-1-1', 'W-SAT')
xp = _ex(2013, 1, 6)
assert p.end_time == xp
def test_properties_annually(self):
# Test properties on Periods with annually frequency.
a_date = Period(freq='A', year=2007)
assert a_date.year == 2007
def test_properties_quarterly(self):
# Test properties on Periods with daily frequency.
qedec_date = Period(freq="Q-DEC", year=2007, quarter=1)
qejan_date = Period(freq="Q-JAN", year=2007, quarter=1)
qejun_date = Period(freq="Q-JUN", year=2007, quarter=1)
#
for x in range(3):
for qd in (qedec_date, qejan_date, qejun_date):
assert (qd + x).qyear == 2007
assert (qd + x).quarter == x + 1
def test_properties_monthly(self):
# Test properties on Periods with daily frequency.
m_date = Period(freq='M', year=2007, month=1)
for x in range(11):
m_ival_x = m_date + x
assert m_ival_x.year == 2007
if 1 <= x + 1 <= 3:
assert m_ival_x.quarter == 1
elif 4 <= x + 1 <= 6:
assert m_ival_x.quarter == 2
elif 7 <= x + 1 <= 9:
assert m_ival_x.quarter == 3
elif 10 <= x + 1 <= 12:
assert m_ival_x.quarter == 4
assert m_ival_x.month == x + 1
def test_properties_weekly(self):
# Test properties on Periods with daily frequency.
w_date = Period(freq='W', year=2007, month=1, day=7)
#
assert w_date.year == 2007
assert w_date.quarter == 1
assert w_date.month == 1
assert w_date.week == 1
assert (w_date - 1).week == 52
assert w_date.days_in_month == 31
assert Period(freq='W', year=2012,
month=2, day=1).days_in_month == 29
def test_properties_weekly_legacy(self):
# Test properties on Periods with daily frequency.
w_date = Period(freq='W', year=2007, month=1, day=7)
assert w_date.year == 2007
assert w_date.quarter == 1
assert w_date.month == 1
assert w_date.week == 1
assert (w_date - 1).week == 52
assert w_date.days_in_month == 31
exp = Period(freq='W', year=2012, month=2, day=1)
assert exp.days_in_month == 29
msg = pd.tseries.frequencies._INVALID_FREQ_ERROR
with tm.assert_raises_regex(ValueError, msg):
Period(freq='WK', year=2007, month=1, day=7)
def test_properties_daily(self):
# Test properties on Periods with daily frequency.
b_date = Period(freq='B', year=2007, month=1, day=1)
#
assert b_date.year == 2007
assert b_date.quarter == 1
assert b_date.month == 1
assert b_date.day == 1
assert b_date.weekday == 0
assert b_date.dayofyear == 1
assert b_date.days_in_month == 31
assert Period(freq='B', year=2012,
month=2, day=1).days_in_month == 29
d_date = Period(freq='D', year=2007, month=1, day=1)
assert d_date.year == 2007
assert d_date.quarter == 1
assert d_date.month == 1
assert d_date.day == 1
assert d_date.weekday == 0
assert d_date.dayofyear == 1
assert d_date.days_in_month == 31
assert Period(freq='D', year=2012, month=2,
day=1).days_in_month == 29
def test_properties_hourly(self):
# Test properties on Periods with hourly frequency.
h_date1 = Period(freq='H', year=2007, month=1, day=1, hour=0)
h_date2 = Period(freq='2H', year=2007, month=1, day=1, hour=0)
for h_date in [h_date1, h_date2]:
assert h_date.year == 2007
assert h_date.quarter == 1
assert h_date.month == 1
assert h_date.day == 1
assert h_date.weekday == 0
assert h_date.dayofyear == 1
assert h_date.hour == 0
assert h_date.days_in_month == 31
assert Period(freq='H', year=2012, month=2, day=1,
hour=0).days_in_month == 29
def test_properties_minutely(self):
# Test properties on Periods with minutely frequency.
t_date = Period(freq='Min', year=2007, month=1, day=1, hour=0,
minute=0)
#
assert t_date.quarter == 1
assert t_date.month == 1
assert t_date.day == 1
assert t_date.weekday == 0
assert t_date.dayofyear == 1
assert t_date.hour == 0
assert t_date.minute == 0
assert t_date.days_in_month == 31
assert Period(freq='D', year=2012, month=2, day=1, hour=0,
minute=0).days_in_month == 29
def test_properties_secondly(self):
# Test properties on Periods with secondly frequency.
s_date = Period(freq='Min', year=2007, month=1, day=1, hour=0,
minute=0, second=0)
#
assert s_date.year == 2007
assert s_date.quarter == 1
assert s_date.month == 1
assert s_date.day == 1
assert s_date.weekday == 0
assert s_date.dayofyear == 1
assert s_date.hour == 0
assert s_date.minute == 0
assert s_date.second == 0
assert s_date.days_in_month == 31
assert Period(freq='Min', year=2012, month=2, day=1, hour=0,
minute=0, second=0).days_in_month == 29
def test_pnow(self):
# deprecation, xref #13790
with tm.assert_produces_warning(FutureWarning,
check_stacklevel=False):
period.pnow('D')
def test_constructor_corner(self):
expected = Period('2007-01', freq='2M')
assert Period(year=2007, month=1, freq='2M') == expected
pytest.raises(ValueError, Period, datetime.now())
pytest.raises(ValueError, Period, datetime.now().date())
pytest.raises(ValueError, Period, 1.6, freq='D')
pytest.raises(ValueError, Period, ordinal=1.6, freq='D')
pytest.raises(ValueError, Period, ordinal=2, value=1, freq='D')
assert Period(None) is pd.NaT
pytest.raises(ValueError, Period, month=1)
p = Period('2007-01-01', freq='D')
result = Period(p, freq='A')
exp = Period('2007', freq='A')
assert result == exp
def test_constructor_infer_freq(self):
p = Period('2007-01-01')
assert p.freq == 'D'
p = Period('2007-01-01 07')
assert p.freq == 'H'
p = Period('2007-01-01 07:10')
assert p.freq == 'T'
p = Period('2007-01-01 07:10:15')
assert p.freq == 'S'
p = Period('2007-01-01 07:10:15.123')
assert p.freq == 'L'
p = Period('2007-01-01 07:10:15.123000')
assert p.freq == 'L'
p = Period('2007-01-01 07:10:15.123400')
assert p.freq == 'U'
def test_badinput(self):
pytest.raises(ValueError, Period, '-2000', 'A')
pytest.raises(tslib.DateParseError, Period, '0', 'A')
pytest.raises(tslib.DateParseError, Period, '1/1/-2000', 'A')
def test_multiples(self):
result1 = Period('1989', freq='2A')
result2 = Period('1989', freq='A')
assert result1.ordinal == result2.ordinal
assert result1.freqstr == '2A-DEC'
assert result2.freqstr == 'A-DEC'
assert result1.freq == offsets.YearEnd(2)
assert result2.freq == offsets.YearEnd()
assert (result1 + 1).ordinal == result1.ordinal + 2
assert (1 + result1).ordinal == result1.ordinal + 2
assert (result1 - 1).ordinal == result2.ordinal - 2
assert (-1 + result1).ordinal == result2.ordinal - 2
def test_round_trip(self):
p = Period('2000Q1')
new_p = tm.round_trip_pickle(p)
assert new_p == p
class TestPeriodField(object):
def test_get_period_field_raises_on_out_of_range(self):
pytest.raises(ValueError, libperiod.get_period_field, -1, 0, 0)
def test_get_period_field_array_raises_on_out_of_range(self):
pytest.raises(ValueError, libperiod.get_period_field_arr, -1,
np.empty(1), 0)
class TestComparisons(object):
def setup_method(self, method):
self.january1 = Period('2000-01', 'M')
self.january2 = Period('2000-01', 'M')
self.february = Period('2000-02', 'M')
self.march = Period('2000-03', 'M')
self.day = Period('2012-01-01', 'D')
def test_equal(self):
assert self.january1 == self.january2
def test_equal_Raises_Value(self):
with pytest.raises(period.IncompatibleFrequency):
self.january1 == self.day
def test_notEqual(self):
assert self.january1 != 1
assert self.january1 != self.february
def test_greater(self):
assert self.february > self.january1
def test_greater_Raises_Value(self):
with pytest.raises(period.IncompatibleFrequency):
self.january1 > self.day
def test_greater_Raises_Type(self):
with pytest.raises(TypeError):
self.january1 > 1
def test_greaterEqual(self):
assert self.january1 >= self.january2
def test_greaterEqual_Raises_Value(self):
with pytest.raises(period.IncompatibleFrequency):
self.january1 >= self.day
with pytest.raises(TypeError):
print(self.january1 >= 1)
def test_smallerEqual(self):
assert self.january1 <= self.january2
def test_smallerEqual_Raises_Value(self):
with pytest.raises(period.IncompatibleFrequency):
self.january1 <= self.day
def test_smallerEqual_Raises_Type(self):
with pytest.raises(TypeError):
self.january1 <= 1
def test_smaller(self):
assert self.january1 < self.february
def test_smaller_Raises_Value(self):
with pytest.raises(period.IncompatibleFrequency):
self.january1 < self.day
def test_smaller_Raises_Type(self):
with pytest.raises(TypeError):
self.january1 < 1
def test_sort(self):
periods = [self.march, self.january1, self.february]
correctPeriods = [self.january1, self.february, self.march]
assert sorted(periods) == correctPeriods
def test_period_nat_comp(self):
p_nat = Period('NaT', freq='D')
p = Period('2011-01-01', freq='D')
nat = pd.Timestamp('NaT')
t = pd.Timestamp('2011-01-01')
# confirm Period('NaT') work identical with Timestamp('NaT')
for left, right in [(p_nat, p), (p, p_nat), (p_nat, p_nat), (nat, t),
(t, nat), (nat, nat)]:
assert not left < right