import pytest from pandas.errors import OutOfBoundsDatetime import pandas as pd from pandas import Period, offsets from pandas.util import testing as tm from pandas._libs.tslibs.frequencies import _period_code_map class TestFreqConversion(object): """Test frequency conversion of date objects""" @pytest.mark.parametrize('freq', ['A', 'Q', 'M', 'W', 'B', 'D']) def test_asfreq_near_zero(self, freq): # GH#19643, GH#19650 per = Period('0001-01-01', freq=freq) tup1 = (per.year, per.hour, per.day) prev = per - 1 assert (per - 1).ordinal == per.ordinal - 1 tup2 = (prev.year, prev.month, prev.day) assert tup2 < tup1 def test_asfreq_near_zero_weekly(self): # GH#19834 per1 = Period('0001-01-01', 'D') + 6 per2 = Period('0001-01-01', 'D') - 6 week1 = per1.asfreq('W') week2 = per2.asfreq('W') assert week1 != week2 assert week1.asfreq('D', 'E') >= per1 assert week2.asfreq('D', 'S') <= per2 @pytest.mark.xfail(reason='GH#19643 period_helper asfreq functions fail ' 'to check for overflows') def test_to_timestamp_out_of_bounds(self): # GH#19643, currently gives Timestamp('1754-08-30 22:43:41.128654848') per = Period('0001-01-01', freq='B') with pytest.raises(OutOfBoundsDatetime): per.to_timestamp() def test_asfreq_corner(self): val = Period(freq='A', year=2007) result1 = val.asfreq('5t') result2 = val.asfreq('t') expected = Period('2007-12-31 23:59', freq='t') assert result1.ordinal == expected.ordinal assert result1.freqstr == '5T' assert result2.ordinal == expected.ordinal assert result2.freqstr == 'T' def test_conv_annual(self): # frequency conversion tests: from Annual Frequency ival_A = Period(freq='A', year=2007) ival_AJAN = Period(freq="A-JAN", year=2007) ival_AJUN = Period(freq="A-JUN", year=2007) ival_ANOV = Period(freq="A-NOV", year=2007) ival_A_to_Q_start = Period(freq='Q', year=2007, quarter=1) ival_A_to_Q_end = Period(freq='Q', year=2007, quarter=4) ival_A_to_M_start = Period(freq='M', year=2007, month=1) ival_A_to_M_end = Period(freq='M', year=2007, month=12) ival_A_to_W_start = Period(freq='W', year=2007, month=1, day=1) ival_A_to_W_end = Period(freq='W', year=2007, month=12, day=31) ival_A_to_B_start = Period(freq='B', year=2007, month=1, day=1) ival_A_to_B_end = Period(freq='B', year=2007, month=12, day=31) ival_A_to_D_start = Period(freq='D', year=2007, month=1, day=1) ival_A_to_D_end = Period(freq='D', year=2007, month=12, day=31) ival_A_to_H_start = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_A_to_H_end = Period(freq='H', year=2007, month=12, day=31, hour=23) ival_A_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_A_to_T_end = Period(freq='Min', year=2007, month=12, day=31, hour=23, minute=59) ival_A_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_A_to_S_end = Period(freq='S', year=2007, month=12, day=31, hour=23, minute=59, second=59) ival_AJAN_to_D_end = Period(freq='D', year=2007, month=1, day=31) ival_AJAN_to_D_start = Period(freq='D', year=2006, month=2, day=1) ival_AJUN_to_D_end = Period(freq='D', year=2007, month=6, day=30) ival_AJUN_to_D_start = Period(freq='D', year=2006, month=7, day=1) ival_ANOV_to_D_end = Period(freq='D', year=2007, month=11, day=30) ival_ANOV_to_D_start = Period(freq='D', year=2006, month=12, day=1) assert ival_A.asfreq('Q', 'S') == ival_A_to_Q_start assert ival_A.asfreq('Q', 'e') == ival_A_to_Q_end assert ival_A.asfreq('M', 's') == ival_A_to_M_start assert ival_A.asfreq('M', 'E') == ival_A_to_M_end assert ival_A.asfreq('W', 'S') == ival_A_to_W_start assert ival_A.asfreq('W', 'E') == ival_A_to_W_end assert ival_A.asfreq('B', 'S') == ival_A_to_B_start assert ival_A.asfreq('B', 'E') == ival_A_to_B_end assert ival_A.asfreq('D', 'S') == ival_A_to_D_start assert ival_A.asfreq('D', 'E') == ival_A_to_D_end assert ival_A.asfreq('H', 'S') == ival_A_to_H_start assert ival_A.asfreq('H', 'E') == ival_A_to_H_end assert ival_A.asfreq('min', 'S') == ival_A_to_T_start assert ival_A.asfreq('min', 'E') == ival_A_to_T_end assert ival_A.asfreq('T', 'S') == ival_A_to_T_start assert ival_A.asfreq('T', 'E') == ival_A_to_T_end assert ival_A.asfreq('S', 'S') == ival_A_to_S_start assert ival_A.asfreq('S', 'E') == ival_A_to_S_end assert ival_AJAN.asfreq('D', 'S') == ival_AJAN_to_D_start assert ival_AJAN.asfreq('D', 'E') == ival_AJAN_to_D_end assert ival_AJUN.asfreq('D', 'S') == ival_AJUN_to_D_start assert ival_AJUN.asfreq('D', 'E') == ival_AJUN_to_D_end assert ival_ANOV.asfreq('D', 'S') == ival_ANOV_to_D_start assert ival_ANOV.asfreq('D', 'E') == ival_ANOV_to_D_end assert ival_A.asfreq('A') == ival_A def test_conv_quarterly(self): # frequency conversion tests: from Quarterly Frequency ival_Q = Period(freq='Q', year=2007, quarter=1) ival_Q_end_of_year = Period(freq='Q', year=2007, quarter=4) ival_QEJAN = Period(freq="Q-JAN", year=2007, quarter=1) ival_QEJUN = Period(freq="Q-JUN", year=2007, quarter=1) ival_Q_to_A = Period(freq='A', year=2007) ival_Q_to_M_start = Period(freq='M', year=2007, month=1) ival_Q_to_M_end = Period(freq='M', year=2007, month=3) ival_Q_to_W_start = Period(freq='W', year=2007, month=1, day=1) ival_Q_to_W_end = Period(freq='W', year=2007, month=3, day=31) ival_Q_to_B_start = Period(freq='B', year=2007, month=1, day=1) ival_Q_to_B_end = Period(freq='B', year=2007, month=3, day=30) ival_Q_to_D_start = Period(freq='D', year=2007, month=1, day=1) ival_Q_to_D_end = Period(freq='D', year=2007, month=3, day=31) ival_Q_to_H_start = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_Q_to_H_end = Period(freq='H', year=2007, month=3, day=31, hour=23) ival_Q_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_Q_to_T_end = Period(freq='Min', year=2007, month=3, day=31, hour=23, minute=59) ival_Q_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_Q_to_S_end = Period(freq='S', year=2007, month=3, day=31, hour=23, minute=59, second=59) ival_QEJAN_to_D_start = Period(freq='D', year=2006, month=2, day=1) ival_QEJAN_to_D_end = Period(freq='D', year=2006, month=4, day=30) ival_QEJUN_to_D_start = Period(freq='D', year=2006, month=7, day=1) ival_QEJUN_to_D_end = Period(freq='D', year=2006, month=9, day=30) assert ival_Q.asfreq('A') == ival_Q_to_A assert ival_Q_end_of_year.asfreq('A') == ival_Q_to_A assert ival_Q.asfreq('M', 'S') == ival_Q_to_M_start assert ival_Q.asfreq('M', 'E') == ival_Q_to_M_end assert ival_Q.asfreq('W', 'S') == ival_Q_to_W_start assert ival_Q.asfreq('W', 'E') == ival_Q_to_W_end assert ival_Q.asfreq('B', 'S') == ival_Q_to_B_start assert ival_Q.asfreq('B', 'E') == ival_Q_to_B_end assert ival_Q.asfreq('D', 'S') == ival_Q_to_D_start assert ival_Q.asfreq('D', 'E') == ival_Q_to_D_end assert ival_Q.asfreq('H', 'S') == ival_Q_to_H_start assert ival_Q.asfreq('H', 'E') == ival_Q_to_H_end assert ival_Q.asfreq('Min', 'S') == ival_Q_to_T_start assert ival_Q.asfreq('Min', 'E') == ival_Q_to_T_end assert ival_Q.asfreq('S', 'S') == ival_Q_to_S_start assert ival_Q.asfreq('S', 'E') == ival_Q_to_S_end assert ival_QEJAN.asfreq('D', 'S') == ival_QEJAN_to_D_start assert ival_QEJAN.asfreq('D', 'E') == ival_QEJAN_to_D_end assert ival_QEJUN.asfreq('D', 'S') == ival_QEJUN_to_D_start assert ival_QEJUN.asfreq('D', 'E') == ival_QEJUN_to_D_end assert ival_Q.asfreq('Q') == ival_Q def test_conv_monthly(self): # frequency conversion tests: from Monthly Frequency ival_M = Period(freq='M', year=2007, month=1) ival_M_end_of_year = Period(freq='M', year=2007, month=12) ival_M_end_of_quarter = Period(freq='M', year=2007, month=3) ival_M_to_A = Period(freq='A', year=2007) ival_M_to_Q = Period(freq='Q', year=2007, quarter=1) ival_M_to_W_start = Period(freq='W', year=2007, month=1, day=1) ival_M_to_W_end = Period(freq='W', year=2007, month=1, day=31) ival_M_to_B_start = Period(freq='B', year=2007, month=1, day=1) ival_M_to_B_end = Period(freq='B', year=2007, month=1, day=31) ival_M_to_D_start = Period(freq='D', year=2007, month=1, day=1) ival_M_to_D_end = Period(freq='D', year=2007, month=1, day=31) ival_M_to_H_start = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_M_to_H_end = Period(freq='H', year=2007, month=1, day=31, hour=23) ival_M_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_M_to_T_end = Period(freq='Min', year=2007, month=1, day=31, hour=23, minute=59) ival_M_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_M_to_S_end = Period(freq='S', year=2007, month=1, day=31, hour=23, minute=59, second=59) assert ival_M.asfreq('A') == ival_M_to_A assert ival_M_end_of_year.asfreq('A') == ival_M_to_A assert ival_M.asfreq('Q') == ival_M_to_Q assert ival_M_end_of_quarter.asfreq('Q') == ival_M_to_Q assert ival_M.asfreq('W', 'S') == ival_M_to_W_start assert ival_M.asfreq('W', 'E') == ival_M_to_W_end assert ival_M.asfreq('B', 'S') == ival_M_to_B_start assert ival_M.asfreq('B', 'E') == ival_M_to_B_end assert ival_M.asfreq('D', 'S') == ival_M_to_D_start assert ival_M.asfreq('D', 'E') == ival_M_to_D_end assert ival_M.asfreq('H', 'S') == ival_M_to_H_start assert ival_M.asfreq('H', 'E') == ival_M_to_H_end assert ival_M.asfreq('Min', 'S') == ival_M_to_T_start assert ival_M.asfreq('Min', 'E') == ival_M_to_T_end assert ival_M.asfreq('S', 'S') == ival_M_to_S_start assert ival_M.asfreq('S', 'E') == ival_M_to_S_end assert ival_M.asfreq('M') == ival_M def test_conv_weekly(self): # frequency conversion tests: from Weekly Frequency ival_W = Period(freq='W', year=2007, month=1, day=1) ival_WSUN = Period(freq='W', year=2007, month=1, day=7) ival_WSAT = Period(freq='W-SAT', year=2007, month=1, day=6) ival_WFRI = Period(freq='W-FRI', year=2007, month=1, day=5) ival_WTHU = Period(freq='W-THU', year=2007, month=1, day=4) ival_WWED = Period(freq='W-WED', year=2007, month=1, day=3) ival_WTUE = Period(freq='W-TUE', year=2007, month=1, day=2) ival_WMON = Period(freq='W-MON', year=2007, month=1, day=1) ival_WSUN_to_D_start = Period(freq='D', year=2007, month=1, day=1) ival_WSUN_to_D_end = Period(freq='D', year=2007, month=1, day=7) ival_WSAT_to_D_start = Period(freq='D', year=2006, month=12, day=31) ival_WSAT_to_D_end = Period(freq='D', year=2007, month=1, day=6) ival_WFRI_to_D_start = Period(freq='D', year=2006, month=12, day=30) ival_WFRI_to_D_end = Period(freq='D', year=2007, month=1, day=5) ival_WTHU_to_D_start = Period(freq='D', year=2006, month=12, day=29) ival_WTHU_to_D_end = Period(freq='D', year=2007, month=1, day=4) ival_WWED_to_D_start = Period(freq='D', year=2006, month=12, day=28) ival_WWED_to_D_end = Period(freq='D', year=2007, month=1, day=3) ival_WTUE_to_D_start = Period(freq='D', year=2006, month=12, day=27) ival_WTUE_to_D_end = Period(freq='D', year=2007, month=1, day=2) ival_WMON_to_D_start = Period(freq='D', year=2006, month=12, day=26) ival_WMON_to_D_end = Period(freq='D', year=2007, month=1, day=1) ival_W_end_of_year = Period(freq='W', year=2007, month=12, day=31) ival_W_end_of_quarter = Period(freq='W', year=2007, month=3, day=31) ival_W_end_of_month = Period(freq='W', year=2007, month=1, day=31) ival_W_to_A = Period(freq='A', year=2007) ival_W_to_Q = Period(freq='Q', year=2007, quarter=1) ival_W_to_M = Period(freq='M', year=2007, month=1) if Period(freq='D', year=2007, month=12, day=31).weekday == 6: ival_W_to_A_end_of_year = Period(freq='A', year=2007) else: ival_W_to_A_end_of_year = Period(freq='A', year=2008) if Period(freq='D', year=2007, month=3, day=31).weekday == 6: ival_W_to_Q_end_of_quarter = Period(freq='Q', year=2007, quarter=1) else: ival_W_to_Q_end_of_quarter = Period(freq='Q', year=2007, quarter=2) if Period(freq='D', year=2007, month=1, day=31).weekday == 6: ival_W_to_M_end_of_month = Period(freq='M', year=2007, month=1) else: ival_W_to_M_end_of_month = Period(freq='M', year=2007, month=2) ival_W_to_B_start = Period(freq='B', year=2007, month=1, day=1) ival_W_to_B_end = Period(freq='B', year=2007, month=1, day=5) ival_W_to_D_start = Period(freq='D', year=2007, month=1, day=1) ival_W_to_D_end = Period(freq='D', year=2007, month=1, day=7) ival_W_to_H_start = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_W_to_H_end = Period(freq='H', year=2007, month=1, day=7, hour=23) ival_W_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_W_to_T_end = Period(freq='Min', year=2007, month=1, day=7, hour=23, minute=59) ival_W_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_W_to_S_end = Period(freq='S', year=2007, month=1, day=7, hour=23, minute=59, second=59) assert ival_W.asfreq('A') == ival_W_to_A assert ival_W_end_of_year.asfreq('A') == ival_W_to_A_end_of_year assert ival_W.asfreq('Q') == ival_W_to_Q assert ival_W_end_of_quarter.asfreq('Q') == ival_W_to_Q_end_of_quarter assert ival_W.asfreq('M') == ival_W_to_M assert ival_W_end_of_month.asfreq('M') == ival_W_to_M_end_of_month assert ival_W.asfreq('B', 'S') == ival_W_to_B_start assert ival_W.asfreq('B', 'E') == ival_W_to_B_end assert ival_W.asfreq('D', 'S') == ival_W_to_D_start assert ival_W.asfreq('D', 'E') == ival_W_to_D_end assert ival_WSUN.asfreq('D', 'S') == ival_WSUN_to_D_start assert ival_WSUN.asfreq('D', 'E') == ival_WSUN_to_D_end assert ival_WSAT.asfreq('D', 'S') == ival_WSAT_to_D_start assert ival_WSAT.asfreq('D', 'E') == ival_WSAT_to_D_end assert ival_WFRI.asfreq('D', 'S') == ival_WFRI_to_D_start assert ival_WFRI.asfreq('D', 'E') == ival_WFRI_to_D_end assert ival_WTHU.asfreq('D', 'S') == ival_WTHU_to_D_start assert ival_WTHU.asfreq('D', 'E') == ival_WTHU_to_D_end assert ival_WWED.asfreq('D', 'S') == ival_WWED_to_D_start assert ival_WWED.asfreq('D', 'E') == ival_WWED_to_D_end assert ival_WTUE.asfreq('D', 'S') == ival_WTUE_to_D_start assert ival_WTUE.asfreq('D', 'E') == ival_WTUE_to_D_end assert ival_WMON.asfreq('D', 'S') == ival_WMON_to_D_start assert ival_WMON.asfreq('D', 'E') == ival_WMON_to_D_end assert ival_W.asfreq('H', 'S') == ival_W_to_H_start assert ival_W.asfreq('H', 'E') == ival_W_to_H_end assert ival_W.asfreq('Min', 'S') == ival_W_to_T_start assert ival_W.asfreq('Min', 'E') == ival_W_to_T_end assert ival_W.asfreq('S', 'S') == ival_W_to_S_start assert ival_W.asfreq('S', 'E') == ival_W_to_S_end assert ival_W.asfreq('W') == ival_W msg = pd._libs.tslibs.frequencies._INVALID_FREQ_ERROR with tm.assert_raises_regex(ValueError, msg): ival_W.asfreq('WK') def test_conv_weekly_legacy(self): # frequency conversion tests: from Weekly Frequency msg = pd._libs.tslibs.frequencies._INVALID_FREQ_ERROR with tm.assert_raises_regex(ValueError, msg): Period(freq='WK', year=2007, month=1, day=1) with tm.assert_raises_regex(ValueError, msg): Period(freq='WK-SAT', year=2007, month=1, day=6) with tm.assert_raises_regex(ValueError, msg): Period(freq='WK-FRI', year=2007, month=1, day=5) with tm.assert_raises_regex(ValueError, msg): Period(freq='WK-THU', year=2007, month=1, day=4) with tm.assert_raises_regex(ValueError, msg): Period(freq='WK-WED', year=2007, month=1, day=3) with tm.assert_raises_regex(ValueError, msg): Period(freq='WK-TUE', year=2007, month=1, day=2) with tm.assert_raises_regex(ValueError, msg): Period(freq='WK-MON', year=2007, month=1, day=1) def test_conv_business(self): # frequency conversion tests: from Business Frequency" ival_B = Period(freq='B', year=2007, month=1, day=1) ival_B_end_of_year = Period(freq='B', year=2007, month=12, day=31) ival_B_end_of_quarter = Period(freq='B', year=2007, month=3, day=30) ival_B_end_of_month = Period(freq='B', year=2007, month=1, day=31) ival_B_end_of_week = Period(freq='B', year=2007, month=1, day=5) ival_B_to_A = Period(freq='A', year=2007) ival_B_to_Q = Period(freq='Q', year=2007, quarter=1) ival_B_to_M = Period(freq='M', year=2007, month=1) ival_B_to_W = Period(freq='W', year=2007, month=1, day=7) ival_B_to_D = Period(freq='D', year=2007, month=1, day=1) ival_B_to_H_start = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_B_to_H_end = Period(freq='H', year=2007, month=1, day=1, hour=23) ival_B_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_B_to_T_end = Period(freq='Min', year=2007, month=1, day=1, hour=23, minute=59) ival_B_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_B_to_S_end = Period(freq='S', year=2007, month=1, day=1, hour=23, minute=59, second=59) assert ival_B.asfreq('A') == ival_B_to_A assert ival_B_end_of_year.asfreq('A') == ival_B_to_A assert ival_B.asfreq('Q') == ival_B_to_Q assert ival_B_end_of_quarter.asfreq('Q') == ival_B_to_Q assert ival_B.asfreq('M') == ival_B_to_M assert ival_B_end_of_month.asfreq('M') == ival_B_to_M assert ival_B.asfreq('W') == ival_B_to_W assert ival_B_end_of_week.asfreq('W') == ival_B_to_W assert ival_B.asfreq('D') == ival_B_to_D assert ival_B.asfreq('H', 'S') == ival_B_to_H_start assert ival_B.asfreq('H', 'E') == ival_B_to_H_end assert ival_B.asfreq('Min', 'S') == ival_B_to_T_start assert ival_B.asfreq('Min', 'E') == ival_B_to_T_end assert ival_B.asfreq('S', 'S') == ival_B_to_S_start assert ival_B.asfreq('S', 'E') == ival_B_to_S_end assert ival_B.asfreq('B') == ival_B def test_conv_daily(self): # frequency conversion tests: from Business Frequency" ival_D = Period(freq='D', year=2007, month=1, day=1) ival_D_end_of_year = Period(freq='D', year=2007, month=12, day=31) ival_D_end_of_quarter = Period(freq='D', year=2007, month=3, day=31) ival_D_end_of_month = Period(freq='D', year=2007, month=1, day=31) ival_D_end_of_week = Period(freq='D', year=2007, month=1, day=7) ival_D_friday = Period(freq='D', year=2007, month=1, day=5) ival_D_saturday = Period(freq='D', year=2007, month=1, day=6) ival_D_sunday = Period(freq='D', year=2007, month=1, day=7) # TODO: unused? # ival_D_monday = Period(freq='D', year=2007, month=1, day=8) ival_B_friday = Period(freq='B', year=2007, month=1, day=5) ival_B_monday = Period(freq='B', year=2007, month=1, day=8) ival_D_to_A = Period(freq='A', year=2007) ival_Deoq_to_AJAN = Period(freq='A-JAN', year=2008) ival_Deoq_to_AJUN = Period(freq='A-JUN', year=2007) ival_Deoq_to_ADEC = Period(freq='A-DEC', year=2007) ival_D_to_QEJAN = Period(freq="Q-JAN", year=2007, quarter=4) ival_D_to_QEJUN = Period(freq="Q-JUN", year=2007, quarter=3) ival_D_to_QEDEC = Period(freq="Q-DEC", year=2007, quarter=1) ival_D_to_M = Period(freq='M', year=2007, month=1) ival_D_to_W = Period(freq='W', year=2007, month=1, day=7) ival_D_to_H_start = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_D_to_H_end = Period(freq='H', year=2007, month=1, day=1, hour=23) ival_D_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_D_to_T_end = Period(freq='Min', year=2007, month=1, day=1, hour=23, minute=59) ival_D_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_D_to_S_end = Period(freq='S', year=2007, month=1, day=1, hour=23, minute=59, second=59) assert ival_D.asfreq('A') == ival_D_to_A assert ival_D_end_of_quarter.asfreq('A-JAN') == ival_Deoq_to_AJAN assert ival_D_end_of_quarter.asfreq('A-JUN') == ival_Deoq_to_AJUN assert ival_D_end_of_quarter.asfreq('A-DEC') == ival_Deoq_to_ADEC assert ival_D_end_of_year.asfreq('A') == ival_D_to_A assert ival_D_end_of_quarter.asfreq('Q') == ival_D_to_QEDEC assert ival_D.asfreq("Q-JAN") == ival_D_to_QEJAN assert ival_D.asfreq("Q-JUN") == ival_D_to_QEJUN assert ival_D.asfreq("Q-DEC") == ival_D_to_QEDEC assert ival_D.asfreq('M') == ival_D_to_M assert ival_D_end_of_month.asfreq('M') == ival_D_to_M assert ival_D.asfreq('W') == ival_D_to_W assert ival_D_end_of_week.asfreq('W') == ival_D_to_W assert ival_D_friday.asfreq('B') == ival_B_friday assert ival_D_saturday.asfreq('B', 'S') == ival_B_friday assert ival_D_saturday.asfreq('B', 'E') == ival_B_monday assert ival_D_sunday.asfreq('B', 'S') == ival_B_friday assert ival_D_sunday.asfreq('B', 'E') == ival_B_monday assert ival_D.asfreq('H', 'S') == ival_D_to_H_start assert ival_D.asfreq('H', 'E') == ival_D_to_H_end assert ival_D.asfreq('Min', 'S') == ival_D_to_T_start assert ival_D.asfreq('Min', 'E') == ival_D_to_T_end assert ival_D.asfreq('S', 'S') == ival_D_to_S_start assert ival_D.asfreq('S', 'E') == ival_D_to_S_end assert ival_D.asfreq('D') == ival_D def test_conv_hourly(self): # frequency conversion tests: from Hourly Frequency" ival_H = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_H_end_of_year = Period(freq='H', year=2007, month=12, day=31, hour=23) ival_H_end_of_quarter = Period(freq='H', year=2007, month=3, day=31, hour=23) ival_H_end_of_month = Period(freq='H', year=2007, month=1, day=31, hour=23) ival_H_end_of_week = Period(freq='H', year=2007, month=1, day=7, hour=23) ival_H_end_of_day = Period(freq='H', year=2007, month=1, day=1, hour=23) ival_H_end_of_bus = Period(freq='H', year=2007, month=1, day=1, hour=23) ival_H_to_A = Period(freq='A', year=2007) ival_H_to_Q = Period(freq='Q', year=2007, quarter=1) ival_H_to_M = Period(freq='M', year=2007, month=1) ival_H_to_W = Period(freq='W', year=2007, month=1, day=7) ival_H_to_D = Period(freq='D', year=2007, month=1, day=1) ival_H_to_B = Period(freq='B', year=2007, month=1, day=1) ival_H_to_T_start = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_H_to_T_end = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=59) ival_H_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_H_to_S_end = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=59, second=59) assert ival_H.asfreq('A') == ival_H_to_A assert ival_H_end_of_year.asfreq('A') == ival_H_to_A assert ival_H.asfreq('Q') == ival_H_to_Q assert ival_H_end_of_quarter.asfreq('Q') == ival_H_to_Q assert ival_H.asfreq('M') == ival_H_to_M assert ival_H_end_of_month.asfreq('M') == ival_H_to_M assert ival_H.asfreq('W') == ival_H_to_W assert ival_H_end_of_week.asfreq('W') == ival_H_to_W assert ival_H.asfreq('D') == ival_H_to_D assert ival_H_end_of_day.asfreq('D') == ival_H_to_D assert ival_H.asfreq('B') == ival_H_to_B assert ival_H_end_of_bus.asfreq('B') == ival_H_to_B assert ival_H.asfreq('Min', 'S') == ival_H_to_T_start assert ival_H.asfreq('Min', 'E') == ival_H_to_T_end assert ival_H.asfreq('S', 'S') == ival_H_to_S_start assert ival_H.asfreq('S', 'E') == ival_H_to_S_end assert ival_H.asfreq('H') == ival_H def test_conv_minutely(self): # frequency conversion tests: from Minutely Frequency" ival_T = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) ival_T_end_of_year = Period(freq='Min', year=2007, month=12, day=31, hour=23, minute=59) ival_T_end_of_quarter = Period(freq='Min', year=2007, month=3, day=31, hour=23, minute=59) ival_T_end_of_month = Period(freq='Min', year=2007, month=1, day=31, hour=23, minute=59) ival_T_end_of_week = Period(freq='Min', year=2007, month=1, day=7, hour=23, minute=59) ival_T_end_of_day = Period(freq='Min', year=2007, month=1, day=1, hour=23, minute=59) ival_T_end_of_bus = Period(freq='Min', year=2007, month=1, day=1, hour=23, minute=59) ival_T_end_of_hour = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=59) ival_T_to_A = Period(freq='A', year=2007) ival_T_to_Q = Period(freq='Q', year=2007, quarter=1) ival_T_to_M = Period(freq='M', year=2007, month=1) ival_T_to_W = Period(freq='W', year=2007, month=1, day=7) ival_T_to_D = Period(freq='D', year=2007, month=1, day=1) ival_T_to_B = Period(freq='B', year=2007, month=1, day=1) ival_T_to_H = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_T_to_S_start = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_T_to_S_end = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=59) assert ival_T.asfreq('A') == ival_T_to_A assert ival_T_end_of_year.asfreq('A') == ival_T_to_A assert ival_T.asfreq('Q') == ival_T_to_Q assert ival_T_end_of_quarter.asfreq('Q') == ival_T_to_Q assert ival_T.asfreq('M') == ival_T_to_M assert ival_T_end_of_month.asfreq('M') == ival_T_to_M assert ival_T.asfreq('W') == ival_T_to_W assert ival_T_end_of_week.asfreq('W') == ival_T_to_W assert ival_T.asfreq('D') == ival_T_to_D assert ival_T_end_of_day.asfreq('D') == ival_T_to_D assert ival_T.asfreq('B') == ival_T_to_B assert ival_T_end_of_bus.asfreq('B') == ival_T_to_B assert ival_T.asfreq('H') == ival_T_to_H assert ival_T_end_of_hour.asfreq('H') == ival_T_to_H assert ival_T.asfreq('S', 'S') == ival_T_to_S_start assert ival_T.asfreq('S', 'E') == ival_T_to_S_end assert ival_T.asfreq('Min') == ival_T def test_conv_secondly(self): # frequency conversion tests: from Secondly Frequency" ival_S = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=0) ival_S_end_of_year = Period(freq='S', year=2007, month=12, day=31, hour=23, minute=59, second=59) ival_S_end_of_quarter = Period(freq='S', year=2007, month=3, day=31, hour=23, minute=59, second=59) ival_S_end_of_month = Period(freq='S', year=2007, month=1, day=31, hour=23, minute=59, second=59) ival_S_end_of_week = Period(freq='S', year=2007, month=1, day=7, hour=23, minute=59, second=59) ival_S_end_of_day = Period(freq='S', year=2007, month=1, day=1, hour=23, minute=59, second=59) ival_S_end_of_bus = Period(freq='S', year=2007, month=1, day=1, hour=23, minute=59, second=59) ival_S_end_of_hour = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=59, second=59) ival_S_end_of_minute = Period(freq='S', year=2007, month=1, day=1, hour=0, minute=0, second=59) ival_S_to_A = Period(freq='A', year=2007) ival_S_to_Q = Period(freq='Q', year=2007, quarter=1) ival_S_to_M = Period(freq='M', year=2007, month=1) ival_S_to_W = Period(freq='W', year=2007, month=1, day=7) ival_S_to_D = Period(freq='D', year=2007, month=1, day=1) ival_S_to_B = Period(freq='B', year=2007, month=1, day=1) ival_S_to_H = Period(freq='H', year=2007, month=1, day=1, hour=0) ival_S_to_T = Period(freq='Min', year=2007, month=1, day=1, hour=0, minute=0) assert ival_S.asfreq('A') == ival_S_to_A assert ival_S_end_of_year.asfreq('A') == ival_S_to_A assert ival_S.asfreq('Q') == ival_S_to_Q assert ival_S_end_of_quarter.asfreq('Q') == ival_S_to_Q assert ival_S.asfreq('M') == ival_S_to_M assert ival_S_end_of_month.asfreq('M') == ival_S_to_M assert ival_S.asfreq('W') == ival_S_to_W assert ival_S_end_of_week.asfreq('W') == ival_S_to_W assert ival_S.asfreq('D') == ival_S_to_D assert ival_S_end_of_day.asfreq('D') == ival_S_to_D assert ival_S.asfreq('B') == ival_S_to_B assert ival_S_end_of_bus.asfreq('B') == ival_S_to_B assert ival_S.asfreq('H') == ival_S_to_H assert ival_S_end_of_hour.asfreq('H') == ival_S_to_H assert ival_S.asfreq('Min') == ival_S_to_T assert ival_S_end_of_minute.asfreq('Min') == ival_S_to_T assert ival_S.asfreq('S') == ival_S def test_asfreq_mult(self): # normal freq to mult freq p = Period(freq='A', year=2007) # ordinal will not change for freq in ['3A', offsets.YearEnd(3)]: result = p.asfreq(freq) expected = Period('2007', freq='3A') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq # ordinal will not change for freq in ['3A', offsets.YearEnd(3)]: result = p.asfreq(freq, how='S') expected = Period('2007', freq='3A') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq # mult freq to normal freq p = Period(freq='3A', year=2007) # ordinal will change because how=E is the default for freq in ['A', offsets.YearEnd()]: result = p.asfreq(freq) expected = Period('2009', freq='A') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq # ordinal will not change for freq in ['A', offsets.YearEnd()]: result = p.asfreq(freq, how='S') expected = Period('2007', freq='A') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq p = Period(freq='A', year=2007) for freq in ['2M', offsets.MonthEnd(2)]: result = p.asfreq(freq) expected = Period('2007-12', freq='2M') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq for freq in ['2M', offsets.MonthEnd(2)]: result = p.asfreq(freq, how='S') expected = Period('2007-01', freq='2M') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq p = Period(freq='3A', year=2007) for freq in ['2M', offsets.MonthEnd(2)]: result = p.asfreq(freq) expected = Period('2009-12', freq='2M') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq for freq in ['2M', offsets.MonthEnd(2)]: result = p.asfreq(freq, how='S') expected = Period('2007-01', freq='2M') assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq def test_asfreq_combined(self): # normal freq to combined freq p = Period('2007', freq='H') # ordinal will not change expected = Period('2007', freq='25H') for freq, how in zip(['1D1H', '1H1D'], ['E', 'S']): result = p.asfreq(freq, how=how) assert result == expected assert result.ordinal == expected.ordinal assert result.freq == expected.freq # combined freq to normal freq p1 = Period(freq='1D1H', year=2007) p2 = Period(freq='1H1D', year=2007) # ordinal will change because how=E is the default result1 = p1.asfreq('H') result2 = p2.asfreq('H') expected = Period('2007-01-02', freq='H') assert result1 == expected assert result1.ordinal == expected.ordinal assert result1.freq == expected.freq assert result2 == expected assert result2.ordinal == expected.ordinal assert result2.freq == expected.freq # ordinal will not change result1 = p1.asfreq('H', how='S') result2 = p2.asfreq('H', how='S') expected = Period('2007-01-01', freq='H') assert result1 == expected assert result1.ordinal == expected.ordinal assert result1.freq == expected.freq assert result2 == expected assert result2.ordinal == expected.ordinal assert result2.freq == expected.freq def test_asfreq_MS(self): initial = Period("2013") assert initial.asfreq(freq="M", how="S") == Period('2013-01', 'M') msg = pd._libs.tslibs.frequencies._INVALID_FREQ_ERROR with tm.assert_raises_regex(ValueError, msg): initial.asfreq(freq="MS", how="S") with tm.assert_raises_regex(ValueError, msg): pd.Period('2013-01', 'MS') assert _period_code_map.get("MS") is None