import pytest from pandas._libs.tslibs.dtypes import _period_code_map from pandas._libs.tslibs.period import INVALID_FREQ_ERR_MSG from pandas.errors import OutOfBoundsDatetime from pandas import ( Period, Timestamp, offsets, ) class TestFreqConversion: """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 prev.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 def test_to_timestamp_out_of_bounds(self): # GH#19643, used to incorrectly give Timestamp in 1754 per = Period("0001-01-01", freq="B") msg = "Out of bounds nanosecond timestamp" with pytest.raises(OutOfBoundsDatetime, match=msg): 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 = INVALID_FREQ_ERR_MSG with pytest.raises(ValueError, match=msg): ival_W.asfreq("WK") def test_conv_weekly_legacy(self): # frequency conversion tests: from Weekly Frequency msg = INVALID_FREQ_ERR_MSG with pytest.raises(ValueError, match=msg): Period(freq="WK", year=2007, month=1, day=1) with pytest.raises(ValueError, match=msg): Period(freq="WK-SAT", year=2007, month=1, day=6) with pytest.raises(ValueError, match=msg): Period(freq="WK-FRI", year=2007, month=1, day=5) with pytest.raises(ValueError, match=msg): Period(freq="WK-THU", year=2007, month=1, day=4) with pytest.raises(ValueError, match=msg): Period(freq="WK-WED", year=2007, month=1, day=3) with pytest.raises(ValueError, match=msg): Period(freq="WK-TUE", year=2007, month=1, day=2) with pytest.raises(ValueError, match=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) 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_conv_microsecond(self): # GH#31475 Avoid floating point errors dropping the start_time to # before the beginning of the Period per = Period("2020-01-30 15:57:27.576166", freq="U") assert per.ordinal == 1580399847576166 start = per.start_time expected = Timestamp("2020-01-30 15:57:27.576166") assert start == expected assert start.value == per.ordinal * 1000 per2 = Period("2300-01-01", "us") msg = "2300-01-01" with pytest.raises(OutOfBoundsDatetime, match=msg): per2.start_time with pytest.raises(OutOfBoundsDatetime, match=msg): per2.end_time 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 = INVALID_FREQ_ERR_MSG with pytest.raises(ValueError, match=msg): initial.asfreq(freq="MS", how="S") with pytest.raises(ValueError, match=msg): Period("2013-01", "MS") assert _period_code_map.get("MS") is None