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Ayxan
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from datetime import timedelta
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from itertools import product
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import numpy as np
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import pytest
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from pandas._libs.tslibs import OutOfBoundsTimedelta
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from pandas import (
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Timedelta,
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offsets,
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to_timedelta,
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)
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def test_construction():
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expected = np.timedelta64(10, "D").astype("m8[ns]").view("i8")
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assert Timedelta(10, unit="d").value == expected
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assert Timedelta(10.0, unit="d").value == expected
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assert Timedelta("10 days").value == expected
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assert Timedelta(days=10).value == expected
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assert Timedelta(days=10.0).value == expected
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expected += np.timedelta64(10, "s").astype("m8[ns]").view("i8")
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assert Timedelta("10 days 00:00:10").value == expected
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assert Timedelta(days=10, seconds=10).value == expected
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assert Timedelta(days=10, milliseconds=10 * 1000).value == expected
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assert Timedelta(days=10, microseconds=10 * 1000 * 1000).value == expected
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# rounding cases
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assert Timedelta(82739999850000).value == 82739999850000
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assert "0 days 22:58:59.999850" in str(Timedelta(82739999850000))
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assert Timedelta(123072001000000).value == 123072001000000
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assert "1 days 10:11:12.001" in str(Timedelta(123072001000000))
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# string conversion with/without leading zero
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# GH#9570
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assert Timedelta("0:00:00") == timedelta(hours=0)
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assert Timedelta("00:00:00") == timedelta(hours=0)
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assert Timedelta("-1:00:00") == -timedelta(hours=1)
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assert Timedelta("-01:00:00") == -timedelta(hours=1)
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# more strings & abbrevs
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# GH#8190
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assert Timedelta("1 h") == timedelta(hours=1)
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assert Timedelta("1 hour") == timedelta(hours=1)
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assert Timedelta("1 hr") == timedelta(hours=1)
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assert Timedelta("1 hours") == timedelta(hours=1)
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assert Timedelta("-1 hours") == -timedelta(hours=1)
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assert Timedelta("1 m") == timedelta(minutes=1)
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assert Timedelta("1.5 m") == timedelta(seconds=90)
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assert Timedelta("1 minute") == timedelta(minutes=1)
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assert Timedelta("1 minutes") == timedelta(minutes=1)
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assert Timedelta("1 s") == timedelta(seconds=1)
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assert Timedelta("1 second") == timedelta(seconds=1)
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assert Timedelta("1 seconds") == timedelta(seconds=1)
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assert Timedelta("1 ms") == timedelta(milliseconds=1)
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assert Timedelta("1 milli") == timedelta(milliseconds=1)
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assert Timedelta("1 millisecond") == timedelta(milliseconds=1)
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assert Timedelta("1 us") == timedelta(microseconds=1)
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assert Timedelta("1 µs") == timedelta(microseconds=1)
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assert Timedelta("1 micros") == timedelta(microseconds=1)
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assert Timedelta("1 microsecond") == timedelta(microseconds=1)
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assert Timedelta("1.5 microsecond") == Timedelta("00:00:00.000001500")
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assert Timedelta("1 ns") == Timedelta("00:00:00.000000001")
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assert Timedelta("1 nano") == Timedelta("00:00:00.000000001")
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assert Timedelta("1 nanosecond") == Timedelta("00:00:00.000000001")
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# combos
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assert Timedelta("10 days 1 hour") == timedelta(days=10, hours=1)
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assert Timedelta("10 days 1 h") == timedelta(days=10, hours=1)
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assert Timedelta("10 days 1 h 1m 1s") == timedelta(
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days=10, hours=1, minutes=1, seconds=1
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)
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assert Timedelta("-10 days 1 h 1m 1s") == -timedelta(
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days=10, hours=1, minutes=1, seconds=1
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)
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assert Timedelta("-10 days 1 h 1m 1s") == -timedelta(
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days=10, hours=1, minutes=1, seconds=1
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)
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assert Timedelta("-10 days 1 h 1m 1s 3us") == -timedelta(
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days=10, hours=1, minutes=1, seconds=1, microseconds=3
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)
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assert Timedelta("-10 days 1 h 1.5m 1s 3us") == -timedelta(
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days=10, hours=1, minutes=1, seconds=31, microseconds=3
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)
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# Currently invalid as it has a - on the hh:mm:dd part
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# (only allowed on the days)
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msg = "only leading negative signs are allowed"
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with pytest.raises(ValueError, match=msg):
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Timedelta("-10 days -1 h 1.5m 1s 3us")
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# only leading neg signs are allowed
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with pytest.raises(ValueError, match=msg):
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Timedelta("10 days -1 h 1.5m 1s 3us")
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# no units specified
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msg = "no units specified"
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with pytest.raises(ValueError, match=msg):
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Timedelta("3.1415")
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# invalid construction
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msg = "cannot construct a Timedelta"
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with pytest.raises(ValueError, match=msg):
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Timedelta()
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msg = "unit abbreviation w/o a number"
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with pytest.raises(ValueError, match=msg):
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Timedelta("foo")
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msg = (
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"cannot construct a Timedelta from "
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"the passed arguments, allowed keywords are "
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)
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with pytest.raises(ValueError, match=msg):
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Timedelta(day=10)
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# floats
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expected = np.timedelta64(10, "s").astype("m8[ns]").view("i8") + np.timedelta64(
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500, "ms"
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).astype("m8[ns]").view("i8")
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assert Timedelta(10.5, unit="s").value == expected
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# offset
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assert to_timedelta(offsets.Hour(2)) == Timedelta(hours=2)
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assert Timedelta(offsets.Hour(2)) == Timedelta(hours=2)
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assert Timedelta(offsets.Second(2)) == Timedelta(seconds=2)
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# GH#11995: unicode
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expected = Timedelta("1H")
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result = Timedelta("1H")
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assert result == expected
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assert to_timedelta(offsets.Hour(2)) == Timedelta("0 days, 02:00:00")
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msg = "unit abbreviation w/o a number"
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with pytest.raises(ValueError, match=msg):
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Timedelta("foo bar")
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@pytest.mark.parametrize(
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"item",
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list(
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{
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"days": "D",
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"seconds": "s",
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"microseconds": "us",
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"milliseconds": "ms",
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"minutes": "m",
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"hours": "h",
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"weeks": "W",
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}.items()
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),
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)
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@pytest.mark.parametrize(
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"npdtype", [np.int64, np.int32, np.int16, np.float64, np.float32, np.float16]
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)
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def test_td_construction_with_np_dtypes(npdtype, item):
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# GH#8757: test construction with np dtypes
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pykwarg, npkwarg = item
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expected = np.timedelta64(1, npkwarg).astype("m8[ns]").view("i8")
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assert Timedelta(**{pykwarg: npdtype(1)}).value == expected
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@pytest.mark.parametrize(
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"val",
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[
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"1s",
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"-1s",
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"1us",
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"-1us",
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"1 day",
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"-1 day",
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"-23:59:59.999999",
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"-1 days +23:59:59.999999",
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"-1ns",
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"1ns",
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"-23:59:59.999999999",
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],
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)
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def test_td_from_repr_roundtrip(val):
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# round-trip both for string and value
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td = Timedelta(val)
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assert Timedelta(td.value) == td
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assert Timedelta(str(td)) == td
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assert Timedelta(td._repr_base(format="all")) == td
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assert Timedelta(td._repr_base()) == td
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def test_overflow_on_construction():
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msg = "int too (large|big) to convert"
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# GH#3374
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value = Timedelta("1day").value * 20169940
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with pytest.raises(OverflowError, match=msg):
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Timedelta(value)
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# xref GH#17637
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with pytest.raises(OverflowError, match=msg):
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Timedelta(7 * 19999, unit="D")
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with pytest.raises(OutOfBoundsTimedelta, match=msg):
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Timedelta(timedelta(days=13 * 19999))
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@pytest.mark.parametrize(
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"val, unit, name",
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[
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(3508, "M", " months"),
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(15251, "W", " weeks"), # 1
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(106752, "D", " days"), # change from previous:
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(2562048, "h", " hours"), # 0 hours
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(153722868, "m", " minutes"), # 13 minutes
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(9223372037, "s", " seconds"), # 44 seconds
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],
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)
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def test_construction_out_of_bounds_td64(val, unit, name):
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# TODO: parametrize over units just above/below the implementation bounds
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# once GH#38964 is resolved
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# Timedelta.max is just under 106752 days
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td64 = np.timedelta64(val, unit)
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assert td64.astype("m8[ns]").view("i8") < 0 # i.e. naive astype will be wrong
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msg = str(val) + name
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with pytest.raises(OutOfBoundsTimedelta, match=msg):
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Timedelta(td64)
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# But just back in bounds and we are OK
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assert Timedelta(td64 - 1) == td64 - 1
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td64 *= -1
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assert td64.astype("m8[ns]").view("i8") > 0 # i.e. naive astype will be wrong
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with pytest.raises(OutOfBoundsTimedelta, match="-" + msg):
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Timedelta(td64)
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# But just back in bounds and we are OK
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assert Timedelta(td64 + 1) == td64 + 1
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@pytest.mark.parametrize(
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"fmt,exp",
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[
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(
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"P6DT0H50M3.010010012S",
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Timedelta(
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days=6,
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minutes=50,
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seconds=3,
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milliseconds=10,
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microseconds=10,
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nanoseconds=12,
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),
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),
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(
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"P-6DT0H50M3.010010012S",
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Timedelta(
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days=-6,
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minutes=50,
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seconds=3,
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milliseconds=10,
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microseconds=10,
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nanoseconds=12,
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),
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),
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("P4DT12H30M5S", Timedelta(days=4, hours=12, minutes=30, seconds=5)),
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("P0DT0H0M0.000000123S", Timedelta(nanoseconds=123)),
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("P0DT0H0M0.00001S", Timedelta(microseconds=10)),
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("P0DT0H0M0.001S", Timedelta(milliseconds=1)),
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("P0DT0H1M0S", Timedelta(minutes=1)),
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("P1DT25H61M61S", Timedelta(days=1, hours=25, minutes=61, seconds=61)),
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("PT1S", Timedelta(seconds=1)),
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("PT0S", Timedelta(seconds=0)),
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("P1WT0S", Timedelta(days=7, seconds=0)),
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("P1D", Timedelta(days=1)),
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("P1DT1H", Timedelta(days=1, hours=1)),
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("P1W", Timedelta(days=7)),
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("PT300S", Timedelta(seconds=300)),
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("P1DT0H0M00000000000S", Timedelta(days=1)),
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("PT-6H3M", Timedelta(hours=-6, minutes=3)),
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("-PT6H3M", Timedelta(hours=-6, minutes=-3)),
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("-PT-6H+3M", Timedelta(hours=6, minutes=-3)),
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],
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)
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def test_iso_constructor(fmt, exp):
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assert Timedelta(fmt) == exp
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@pytest.mark.parametrize(
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"fmt",
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[
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"PPPPPPPPPPPP",
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"PDTHMS",
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"P0DT999H999M999S",
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"P1DT0H0M0.0000000000000S",
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"P1DT0H0M0.S",
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"P",
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"-P",
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],
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)
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def test_iso_constructor_raises(fmt):
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msg = f"Invalid ISO 8601 Duration format - {fmt}"
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with pytest.raises(ValueError, match=msg):
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Timedelta(fmt)
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@pytest.mark.parametrize(
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"constructed_td, conversion",
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[
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(Timedelta(nanoseconds=100), "100ns"),
|
||||
(
|
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Timedelta(
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days=1,
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hours=1,
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minutes=1,
|
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weeks=1,
|
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seconds=1,
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milliseconds=1,
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microseconds=1,
|
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nanoseconds=1,
|
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),
|
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694861001001001,
|
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),
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(Timedelta(microseconds=1) + Timedelta(nanoseconds=1), "1us1ns"),
|
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(Timedelta(microseconds=1) - Timedelta(nanoseconds=1), "999ns"),
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(Timedelta(microseconds=1) + 5 * Timedelta(nanoseconds=-2), "990ns"),
|
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],
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)
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def test_td_constructor_on_nanoseconds(constructed_td, conversion):
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# GH#9273
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assert constructed_td == Timedelta(conversion)
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def test_td_constructor_value_error():
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msg = "Invalid type <class 'str'>. Must be int or float."
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with pytest.raises(TypeError, match=msg):
|
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Timedelta(nanoseconds="abc")
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|
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|
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def test_timedelta_constructor_identity():
|
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# Test for #30543
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expected = Timedelta(np.timedelta64(1, "s"))
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result = Timedelta(expected)
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assert result is expected
|
||||
|
||||
|
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@pytest.mark.parametrize(
|
||||
"constructor, value, unit, expectation",
|
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[
|
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(Timedelta, "10s", "ms", (ValueError, "unit must not be specified")),
|
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(to_timedelta, "10s", "ms", (ValueError, "unit must not be specified")),
|
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(to_timedelta, ["1", 2, 3], "s", (ValueError, "unit must not be specified")),
|
||||
],
|
||||
)
|
||||
def test_string_with_unit(constructor, value, unit, expectation):
|
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exp, match = expectation
|
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with pytest.raises(exp, match=match):
|
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_ = constructor(value, unit=unit)
|
||||
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
"value",
|
||||
[
|
||||
"".join(elements)
|
||||
for repetition in (1, 2)
|
||||
for elements in product("+-, ", repeat=repetition)
|
||||
],
|
||||
)
|
||||
def test_string_without_numbers(value):
|
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# GH39710 Timedelta input string with only symbols and no digits raises an error
|
||||
msg = (
|
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"symbols w/o a number"
|
||||
if value != "--"
|
||||
else "only leading negative signs are allowed"
|
||||
)
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
Timedelta(value)
|
||||
@ -0,0 +1,44 @@
|
||||
import pytest
|
||||
|
||||
from pandas import Timedelta
|
||||
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
"td, expected_repr",
|
||||
[
|
||||
(Timedelta(10, unit="d"), "Timedelta('10 days 00:00:00')"),
|
||||
(Timedelta(10, unit="s"), "Timedelta('0 days 00:00:10')"),
|
||||
(Timedelta(10, unit="ms"), "Timedelta('0 days 00:00:00.010000')"),
|
||||
(Timedelta(-10, unit="ms"), "Timedelta('-1 days +23:59:59.990000')"),
|
||||
],
|
||||
)
|
||||
def test_repr(td, expected_repr):
|
||||
assert repr(td) == expected_repr
|
||||
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
"td, expected_iso",
|
||||
[
|
||||
(
|
||||
Timedelta(
|
||||
days=6,
|
||||
minutes=50,
|
||||
seconds=3,
|
||||
milliseconds=10,
|
||||
microseconds=10,
|
||||
nanoseconds=12,
|
||||
),
|
||||
"P6DT0H50M3.010010012S",
|
||||
),
|
||||
(Timedelta(days=4, hours=12, minutes=30, seconds=5), "P4DT12H30M5S"),
|
||||
(Timedelta(nanoseconds=123), "P0DT0H0M0.000000123S"),
|
||||
# trim nano
|
||||
(Timedelta(microseconds=10), "P0DT0H0M0.00001S"),
|
||||
# trim micro
|
||||
(Timedelta(milliseconds=1), "P0DT0H0M0.001S"),
|
||||
# don't strip every 0
|
||||
(Timedelta(minutes=1), "P0DT0H1M0S"),
|
||||
],
|
||||
)
|
||||
def test_isoformat(td, expected_iso):
|
||||
assert td.isoformat() == expected_iso
|
||||
@ -0,0 +1,661 @@
|
||||
""" test the scalar Timedelta """
|
||||
from datetime import timedelta
|
||||
|
||||
from hypothesis import (
|
||||
given,
|
||||
strategies as st,
|
||||
)
|
||||
import numpy as np
|
||||
import pytest
|
||||
|
||||
from pandas._libs import lib
|
||||
from pandas._libs.tslibs import (
|
||||
NaT,
|
||||
iNaT,
|
||||
)
|
||||
|
||||
import pandas as pd
|
||||
from pandas import (
|
||||
Timedelta,
|
||||
TimedeltaIndex,
|
||||
offsets,
|
||||
to_timedelta,
|
||||
)
|
||||
import pandas._testing as tm
|
||||
|
||||
|
||||
class TestTimedeltaUnaryOps:
|
||||
def test_invert(self):
|
||||
td = Timedelta(10, unit="d")
|
||||
|
||||
msg = "bad operand type for unary ~"
|
||||
with pytest.raises(TypeError, match=msg):
|
||||
~td
|
||||
|
||||
# check this matches pytimedelta and timedelta64
|
||||
with pytest.raises(TypeError, match=msg):
|
||||
~(td.to_pytimedelta())
|
||||
|
||||
umsg = "ufunc 'invert' not supported for the input types"
|
||||
with pytest.raises(TypeError, match=umsg):
|
||||
~(td.to_timedelta64())
|
||||
|
||||
def test_unary_ops(self):
|
||||
td = Timedelta(10, unit="d")
|
||||
|
||||
# __neg__, __pos__
|
||||
assert -td == Timedelta(-10, unit="d")
|
||||
assert -td == Timedelta("-10d")
|
||||
assert +td == Timedelta(10, unit="d")
|
||||
|
||||
# __abs__, __abs__(__neg__)
|
||||
assert abs(td) == td
|
||||
assert abs(-td) == td
|
||||
assert abs(-td) == Timedelta("10d")
|
||||
|
||||
|
||||
class TestTimedeltas:
|
||||
@pytest.mark.parametrize(
|
||||
"unit, value, expected",
|
||||
[
|
||||
("us", 9.999, 9999),
|
||||
("ms", 9.999999, 9999999),
|
||||
("s", 9.999999999, 9999999999),
|
||||
],
|
||||
)
|
||||
def test_rounding_on_int_unit_construction(self, unit, value, expected):
|
||||
# GH 12690
|
||||
result = Timedelta(value, unit=unit)
|
||||
assert result.value == expected
|
||||
result = Timedelta(str(value) + unit)
|
||||
assert result.value == expected
|
||||
|
||||
def test_total_seconds_scalar(self):
|
||||
# see gh-10939
|
||||
rng = Timedelta("1 days, 10:11:12.100123456")
|
||||
expt = 1 * 86400 + 10 * 3600 + 11 * 60 + 12 + 100123456.0 / 1e9
|
||||
tm.assert_almost_equal(rng.total_seconds(), expt)
|
||||
|
||||
rng = Timedelta(np.nan)
|
||||
assert np.isnan(rng.total_seconds())
|
||||
|
||||
def test_conversion(self):
|
||||
|
||||
for td in [Timedelta(10, unit="d"), Timedelta("1 days, 10:11:12.012345")]:
|
||||
pydt = td.to_pytimedelta()
|
||||
assert td == Timedelta(pydt)
|
||||
assert td == pydt
|
||||
assert isinstance(pydt, timedelta) and not isinstance(pydt, Timedelta)
|
||||
|
||||
assert td == np.timedelta64(td.value, "ns")
|
||||
td64 = td.to_timedelta64()
|
||||
|
||||
assert td64 == np.timedelta64(td.value, "ns")
|
||||
assert td == td64
|
||||
|
||||
assert isinstance(td64, np.timedelta64)
|
||||
|
||||
# this is NOT equal and cannot be roundtripped (because of the nanos)
|
||||
td = Timedelta("1 days, 10:11:12.012345678")
|
||||
assert td != td.to_pytimedelta()
|
||||
|
||||
def test_fields(self):
|
||||
def check(value):
|
||||
# that we are int
|
||||
assert isinstance(value, int)
|
||||
|
||||
# compat to datetime.timedelta
|
||||
rng = to_timedelta("1 days, 10:11:12")
|
||||
assert rng.days == 1
|
||||
assert rng.seconds == 10 * 3600 + 11 * 60 + 12
|
||||
assert rng.microseconds == 0
|
||||
assert rng.nanoseconds == 0
|
||||
|
||||
msg = "'Timedelta' object has no attribute '{}'"
|
||||
with pytest.raises(AttributeError, match=msg.format("hours")):
|
||||
rng.hours
|
||||
with pytest.raises(AttributeError, match=msg.format("minutes")):
|
||||
rng.minutes
|
||||
with pytest.raises(AttributeError, match=msg.format("milliseconds")):
|
||||
rng.milliseconds
|
||||
|
||||
# GH 10050
|
||||
check(rng.days)
|
||||
check(rng.seconds)
|
||||
check(rng.microseconds)
|
||||
check(rng.nanoseconds)
|
||||
|
||||
td = Timedelta("-1 days, 10:11:12")
|
||||
assert abs(td) == Timedelta("13:48:48")
|
||||
assert str(td) == "-1 days +10:11:12"
|
||||
assert -td == Timedelta("0 days 13:48:48")
|
||||
assert -Timedelta("-1 days, 10:11:12").value == 49728000000000
|
||||
assert Timedelta("-1 days, 10:11:12").value == -49728000000000
|
||||
|
||||
rng = to_timedelta("-1 days, 10:11:12.100123456")
|
||||
assert rng.days == -1
|
||||
assert rng.seconds == 10 * 3600 + 11 * 60 + 12
|
||||
assert rng.microseconds == 100 * 1000 + 123
|
||||
assert rng.nanoseconds == 456
|
||||
msg = "'Timedelta' object has no attribute '{}'"
|
||||
with pytest.raises(AttributeError, match=msg.format("hours")):
|
||||
rng.hours
|
||||
with pytest.raises(AttributeError, match=msg.format("minutes")):
|
||||
rng.minutes
|
||||
with pytest.raises(AttributeError, match=msg.format("milliseconds")):
|
||||
rng.milliseconds
|
||||
|
||||
# components
|
||||
tup = to_timedelta(-1, "us").components
|
||||
assert tup.days == -1
|
||||
assert tup.hours == 23
|
||||
assert tup.minutes == 59
|
||||
assert tup.seconds == 59
|
||||
assert tup.milliseconds == 999
|
||||
assert tup.microseconds == 999
|
||||
assert tup.nanoseconds == 0
|
||||
|
||||
# GH 10050
|
||||
check(tup.days)
|
||||
check(tup.hours)
|
||||
check(tup.minutes)
|
||||
check(tup.seconds)
|
||||
check(tup.milliseconds)
|
||||
check(tup.microseconds)
|
||||
check(tup.nanoseconds)
|
||||
|
||||
tup = Timedelta("-1 days 1 us").components
|
||||
assert tup.days == -2
|
||||
assert tup.hours == 23
|
||||
assert tup.minutes == 59
|
||||
assert tup.seconds == 59
|
||||
assert tup.milliseconds == 999
|
||||
assert tup.microseconds == 999
|
||||
assert tup.nanoseconds == 0
|
||||
|
||||
def test_iso_conversion(self):
|
||||
# GH #21877
|
||||
expected = Timedelta(1, unit="s")
|
||||
assert to_timedelta("P0DT0H0M1S") == expected
|
||||
|
||||
def test_nat_converters(self):
|
||||
result = to_timedelta("nat").to_numpy()
|
||||
assert result.dtype.kind == "M"
|
||||
assert result.astype("int64") == iNaT
|
||||
|
||||
result = to_timedelta("nan").to_numpy()
|
||||
assert result.dtype.kind == "M"
|
||||
assert result.astype("int64") == iNaT
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
"unit, np_unit",
|
||||
[(value, "W") for value in ["W", "w"]]
|
||||
+ [(value, "D") for value in ["D", "d", "days", "day", "Days", "Day"]]
|
||||
+ [
|
||||
(value, "m")
|
||||
for value in [
|
||||
"m",
|
||||
"minute",
|
||||
"min",
|
||||
"minutes",
|
||||
"t",
|
||||
"Minute",
|
||||
"Min",
|
||||
"Minutes",
|
||||
"T",
|
||||
]
|
||||
]
|
||||
+ [
|
||||
(value, "s")
|
||||
for value in [
|
||||
"s",
|
||||
"seconds",
|
||||
"sec",
|
||||
"second",
|
||||
"S",
|
||||
"Seconds",
|
||||
"Sec",
|
||||
"Second",
|
||||
]
|
||||
]
|
||||
+ [
|
||||
(value, "ms")
|
||||
for value in [
|
||||
"ms",
|
||||
"milliseconds",
|
||||
"millisecond",
|
||||
"milli",
|
||||
"millis",
|
||||
"l",
|
||||
"MS",
|
||||
"Milliseconds",
|
||||
"Millisecond",
|
||||
"Milli",
|
||||
"Millis",
|
||||
"L",
|
||||
]
|
||||
]
|
||||
+ [
|
||||
(value, "us")
|
||||
for value in [
|
||||
"us",
|
||||
"microseconds",
|
||||
"microsecond",
|
||||
"micro",
|
||||
"micros",
|
||||
"u",
|
||||
"US",
|
||||
"Microseconds",
|
||||
"Microsecond",
|
||||
"Micro",
|
||||
"Micros",
|
||||
"U",
|
||||
]
|
||||
]
|
||||
+ [
|
||||
(value, "ns")
|
||||
for value in [
|
||||
"ns",
|
||||
"nanoseconds",
|
||||
"nanosecond",
|
||||
"nano",
|
||||
"nanos",
|
||||
"n",
|
||||
"NS",
|
||||
"Nanoseconds",
|
||||
"Nanosecond",
|
||||
"Nano",
|
||||
"Nanos",
|
||||
"N",
|
||||
]
|
||||
],
|
||||
)
|
||||
@pytest.mark.parametrize("wrapper", [np.array, list, pd.Index])
|
||||
def test_unit_parser(self, unit, np_unit, wrapper):
|
||||
# validate all units, GH 6855, GH 21762
|
||||
# array-likes
|
||||
expected = TimedeltaIndex(
|
||||
[np.timedelta64(i, np_unit) for i in np.arange(5).tolist()]
|
||||
)
|
||||
result = to_timedelta(wrapper(range(5)), unit=unit)
|
||||
tm.assert_index_equal(result, expected)
|
||||
result = TimedeltaIndex(wrapper(range(5)), unit=unit)
|
||||
tm.assert_index_equal(result, expected)
|
||||
|
||||
str_repr = [f"{x}{unit}" for x in np.arange(5)]
|
||||
result = to_timedelta(wrapper(str_repr))
|
||||
tm.assert_index_equal(result, expected)
|
||||
result = to_timedelta(wrapper(str_repr))
|
||||
tm.assert_index_equal(result, expected)
|
||||
|
||||
# scalar
|
||||
expected = Timedelta(np.timedelta64(2, np_unit).astype("timedelta64[ns]"))
|
||||
result = to_timedelta(2, unit=unit)
|
||||
assert result == expected
|
||||
result = Timedelta(2, unit=unit)
|
||||
assert result == expected
|
||||
|
||||
result = to_timedelta(f"2{unit}")
|
||||
assert result == expected
|
||||
result = Timedelta(f"2{unit}")
|
||||
assert result == expected
|
||||
|
||||
@pytest.mark.parametrize("unit", ["Y", "y", "M"])
|
||||
def test_unit_m_y_raises(self, unit):
|
||||
msg = "Units 'M', 'Y', and 'y' are no longer supported"
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
Timedelta(10, unit)
|
||||
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
to_timedelta(10, unit)
|
||||
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
to_timedelta([1, 2], unit)
|
||||
|
||||
def test_numeric_conversions(self):
|
||||
assert Timedelta(0) == np.timedelta64(0, "ns")
|
||||
assert Timedelta(10) == np.timedelta64(10, "ns")
|
||||
assert Timedelta(10, unit="ns") == np.timedelta64(10, "ns")
|
||||
|
||||
assert Timedelta(10, unit="us") == np.timedelta64(10, "us")
|
||||
assert Timedelta(10, unit="ms") == np.timedelta64(10, "ms")
|
||||
assert Timedelta(10, unit="s") == np.timedelta64(10, "s")
|
||||
assert Timedelta(10, unit="d") == np.timedelta64(10, "D")
|
||||
|
||||
def test_timedelta_conversions(self):
|
||||
assert Timedelta(timedelta(seconds=1)) == np.timedelta64(1, "s").astype(
|
||||
"m8[ns]"
|
||||
)
|
||||
assert Timedelta(timedelta(microseconds=1)) == np.timedelta64(1, "us").astype(
|
||||
"m8[ns]"
|
||||
)
|
||||
assert Timedelta(timedelta(days=1)) == np.timedelta64(1, "D").astype("m8[ns]")
|
||||
|
||||
def test_to_numpy_alias(self):
|
||||
# GH 24653: alias .to_numpy() for scalars
|
||||
td = Timedelta("10m7s")
|
||||
assert td.to_timedelta64() == td.to_numpy()
|
||||
|
||||
# GH#44460
|
||||
msg = "dtype and copy arguments are ignored"
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
td.to_numpy("m8[s]")
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
td.to_numpy(copy=True)
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
"freq,s1,s2",
|
||||
[
|
||||
# This first case has s1, s2 being the same as t1,t2 below
|
||||
(
|
||||
"N",
|
||||
Timedelta("1 days 02:34:56.789123456"),
|
||||
Timedelta("-1 days 02:34:56.789123456"),
|
||||
),
|
||||
(
|
||||
"U",
|
||||
Timedelta("1 days 02:34:56.789123000"),
|
||||
Timedelta("-1 days 02:34:56.789123000"),
|
||||
),
|
||||
(
|
||||
"L",
|
||||
Timedelta("1 days 02:34:56.789000000"),
|
||||
Timedelta("-1 days 02:34:56.789000000"),
|
||||
),
|
||||
("S", Timedelta("1 days 02:34:57"), Timedelta("-1 days 02:34:57")),
|
||||
("2S", Timedelta("1 days 02:34:56"), Timedelta("-1 days 02:34:56")),
|
||||
("5S", Timedelta("1 days 02:34:55"), Timedelta("-1 days 02:34:55")),
|
||||
("T", Timedelta("1 days 02:35:00"), Timedelta("-1 days 02:35:00")),
|
||||
("12T", Timedelta("1 days 02:36:00"), Timedelta("-1 days 02:36:00")),
|
||||
("H", Timedelta("1 days 03:00:00"), Timedelta("-1 days 03:00:00")),
|
||||
("d", Timedelta("1 days"), Timedelta("-1 days")),
|
||||
],
|
||||
)
|
||||
def test_round(self, freq, s1, s2):
|
||||
|
||||
t1 = Timedelta("1 days 02:34:56.789123456")
|
||||
t2 = Timedelta("-1 days 02:34:56.789123456")
|
||||
|
||||
r1 = t1.round(freq)
|
||||
assert r1 == s1
|
||||
r2 = t2.round(freq)
|
||||
assert r2 == s2
|
||||
|
||||
def test_round_invalid(self):
|
||||
t1 = Timedelta("1 days 02:34:56.789123456")
|
||||
|
||||
for freq, msg in [
|
||||
("Y", "<YearEnd: month=12> is a non-fixed frequency"),
|
||||
("M", "<MonthEnd> is a non-fixed frequency"),
|
||||
("foobar", "Invalid frequency: foobar"),
|
||||
]:
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
t1.round(freq)
|
||||
|
||||
def test_round_implementation_bounds(self):
|
||||
# See also: analogous test for Timestamp
|
||||
# GH#38964
|
||||
result = Timedelta.min.ceil("s")
|
||||
expected = Timedelta.min + Timedelta(seconds=1) - Timedelta(145224193)
|
||||
assert result == expected
|
||||
|
||||
result = Timedelta.max.floor("s")
|
||||
expected = Timedelta.max - Timedelta(854775807)
|
||||
assert result == expected
|
||||
|
||||
with pytest.raises(OverflowError, match="value too large"):
|
||||
Timedelta.min.floor("s")
|
||||
|
||||
# the second message here shows up in windows builds
|
||||
msg = "|".join(
|
||||
["Python int too large to convert to C long", "int too big to convert"]
|
||||
)
|
||||
with pytest.raises(OverflowError, match=msg):
|
||||
Timedelta.max.ceil("s")
|
||||
|
||||
@given(val=st.integers(min_value=iNaT + 1, max_value=lib.i8max))
|
||||
@pytest.mark.parametrize(
|
||||
"method", [Timedelta.round, Timedelta.floor, Timedelta.ceil]
|
||||
)
|
||||
def test_round_sanity(self, val, method):
|
||||
val = np.int64(val)
|
||||
td = Timedelta(val)
|
||||
|
||||
assert method(td, "ns") == td
|
||||
|
||||
res = method(td, "us")
|
||||
nanos = 1000
|
||||
assert np.abs((res - td).value) < nanos
|
||||
assert res.value % nanos == 0
|
||||
|
||||
res = method(td, "ms")
|
||||
nanos = 1_000_000
|
||||
assert np.abs((res - td).value) < nanos
|
||||
assert res.value % nanos == 0
|
||||
|
||||
res = method(td, "s")
|
||||
nanos = 1_000_000_000
|
||||
assert np.abs((res - td).value) < nanos
|
||||
assert res.value % nanos == 0
|
||||
|
||||
res = method(td, "min")
|
||||
nanos = 60 * 1_000_000_000
|
||||
assert np.abs((res - td).value) < nanos
|
||||
assert res.value % nanos == 0
|
||||
|
||||
res = method(td, "h")
|
||||
nanos = 60 * 60 * 1_000_000_000
|
||||
assert np.abs((res - td).value) < nanos
|
||||
assert res.value % nanos == 0
|
||||
|
||||
res = method(td, "D")
|
||||
nanos = 24 * 60 * 60 * 1_000_000_000
|
||||
assert np.abs((res - td).value) < nanos
|
||||
assert res.value % nanos == 0
|
||||
|
||||
def test_contains(self):
|
||||
# Checking for any NaT-like objects
|
||||
# GH 13603
|
||||
td = to_timedelta(range(5), unit="d") + offsets.Hour(1)
|
||||
for v in [NaT, None, float("nan"), np.nan]:
|
||||
assert not (v in td)
|
||||
|
||||
td = to_timedelta([NaT])
|
||||
for v in [NaT, None, float("nan"), np.nan]:
|
||||
assert v in td
|
||||
|
||||
def test_identity(self):
|
||||
|
||||
td = Timedelta(10, unit="d")
|
||||
assert isinstance(td, Timedelta)
|
||||
assert isinstance(td, timedelta)
|
||||
|
||||
def test_short_format_converters(self):
|
||||
def conv(v):
|
||||
return v.astype("m8[ns]")
|
||||
|
||||
assert Timedelta("10") == np.timedelta64(10, "ns")
|
||||
assert Timedelta("10ns") == np.timedelta64(10, "ns")
|
||||
assert Timedelta("100") == np.timedelta64(100, "ns")
|
||||
assert Timedelta("100ns") == np.timedelta64(100, "ns")
|
||||
|
||||
assert Timedelta("1000") == np.timedelta64(1000, "ns")
|
||||
assert Timedelta("1000ns") == np.timedelta64(1000, "ns")
|
||||
assert Timedelta("1000NS") == np.timedelta64(1000, "ns")
|
||||
|
||||
assert Timedelta("10us") == np.timedelta64(10000, "ns")
|
||||
assert Timedelta("100us") == np.timedelta64(100000, "ns")
|
||||
assert Timedelta("1000us") == np.timedelta64(1000000, "ns")
|
||||
assert Timedelta("1000Us") == np.timedelta64(1000000, "ns")
|
||||
assert Timedelta("1000uS") == np.timedelta64(1000000, "ns")
|
||||
|
||||
assert Timedelta("1ms") == np.timedelta64(1000000, "ns")
|
||||
assert Timedelta("10ms") == np.timedelta64(10000000, "ns")
|
||||
assert Timedelta("100ms") == np.timedelta64(100000000, "ns")
|
||||
assert Timedelta("1000ms") == np.timedelta64(1000000000, "ns")
|
||||
|
||||
assert Timedelta("-1s") == -np.timedelta64(1000000000, "ns")
|
||||
assert Timedelta("1s") == np.timedelta64(1000000000, "ns")
|
||||
assert Timedelta("10s") == np.timedelta64(10000000000, "ns")
|
||||
assert Timedelta("100s") == np.timedelta64(100000000000, "ns")
|
||||
assert Timedelta("1000s") == np.timedelta64(1000000000000, "ns")
|
||||
|
||||
assert Timedelta("1d") == conv(np.timedelta64(1, "D"))
|
||||
assert Timedelta("-1d") == -conv(np.timedelta64(1, "D"))
|
||||
assert Timedelta("1D") == conv(np.timedelta64(1, "D"))
|
||||
assert Timedelta("10D") == conv(np.timedelta64(10, "D"))
|
||||
assert Timedelta("100D") == conv(np.timedelta64(100, "D"))
|
||||
assert Timedelta("1000D") == conv(np.timedelta64(1000, "D"))
|
||||
assert Timedelta("10000D") == conv(np.timedelta64(10000, "D"))
|
||||
|
||||
# space
|
||||
assert Timedelta(" 10000D ") == conv(np.timedelta64(10000, "D"))
|
||||
assert Timedelta(" - 10000D ") == -conv(np.timedelta64(10000, "D"))
|
||||
|
||||
# invalid
|
||||
msg = "invalid unit abbreviation"
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
Timedelta("1foo")
|
||||
msg = "unit abbreviation w/o a number"
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
Timedelta("foo")
|
||||
|
||||
def test_full_format_converters(self):
|
||||
def conv(v):
|
||||
return v.astype("m8[ns]")
|
||||
|
||||
d1 = np.timedelta64(1, "D")
|
||||
|
||||
assert Timedelta("1days") == conv(d1)
|
||||
assert Timedelta("1days,") == conv(d1)
|
||||
assert Timedelta("- 1days,") == -conv(d1)
|
||||
|
||||
assert Timedelta("00:00:01") == conv(np.timedelta64(1, "s"))
|
||||
assert Timedelta("06:00:01") == conv(np.timedelta64(6 * 3600 + 1, "s"))
|
||||
assert Timedelta("06:00:01.0") == conv(np.timedelta64(6 * 3600 + 1, "s"))
|
||||
assert Timedelta("06:00:01.01") == conv(
|
||||
np.timedelta64(1000 * (6 * 3600 + 1) + 10, "ms")
|
||||
)
|
||||
|
||||
assert Timedelta("- 1days, 00:00:01") == conv(-d1 + np.timedelta64(1, "s"))
|
||||
assert Timedelta("1days, 06:00:01") == conv(
|
||||
d1 + np.timedelta64(6 * 3600 + 1, "s")
|
||||
)
|
||||
assert Timedelta("1days, 06:00:01.01") == conv(
|
||||
d1 + np.timedelta64(1000 * (6 * 3600 + 1) + 10, "ms")
|
||||
)
|
||||
|
||||
# invalid
|
||||
msg = "have leftover units"
|
||||
with pytest.raises(ValueError, match=msg):
|
||||
Timedelta("- 1days, 00")
|
||||
|
||||
def test_pickle(self):
|
||||
|
||||
v = Timedelta("1 days 10:11:12.0123456")
|
||||
v_p = tm.round_trip_pickle(v)
|
||||
assert v == v_p
|
||||
|
||||
def test_timedelta_hash_equality(self):
|
||||
# GH 11129
|
||||
v = Timedelta(1, "D")
|
||||
td = timedelta(days=1)
|
||||
assert hash(v) == hash(td)
|
||||
|
||||
d = {td: 2}
|
||||
assert d[v] == 2
|
||||
|
||||
tds = [Timedelta(seconds=1) + Timedelta(days=n) for n in range(20)]
|
||||
assert all(hash(td) == hash(td.to_pytimedelta()) for td in tds)
|
||||
|
||||
# python timedeltas drop ns resolution
|
||||
ns_td = Timedelta(1, "ns")
|
||||
assert hash(ns_td) != hash(ns_td.to_pytimedelta())
|
||||
|
||||
def test_implementation_limits(self):
|
||||
min_td = Timedelta(Timedelta.min)
|
||||
max_td = Timedelta(Timedelta.max)
|
||||
|
||||
# GH 12727
|
||||
# timedelta limits correspond to int64 boundaries
|
||||
assert min_td.value == iNaT + 1
|
||||
assert max_td.value == lib.i8max
|
||||
|
||||
# Beyond lower limit, a NAT before the Overflow
|
||||
assert (min_td - Timedelta(1, "ns")) is NaT
|
||||
|
||||
msg = "int too (large|big) to convert"
|
||||
with pytest.raises(OverflowError, match=msg):
|
||||
min_td - Timedelta(2, "ns")
|
||||
|
||||
with pytest.raises(OverflowError, match=msg):
|
||||
max_td + Timedelta(1, "ns")
|
||||
|
||||
# Same tests using the internal nanosecond values
|
||||
td = Timedelta(min_td.value - 1, "ns")
|
||||
assert td is NaT
|
||||
|
||||
with pytest.raises(OverflowError, match=msg):
|
||||
Timedelta(min_td.value - 2, "ns")
|
||||
|
||||
with pytest.raises(OverflowError, match=msg):
|
||||
Timedelta(max_td.value + 1, "ns")
|
||||
|
||||
def test_total_seconds_precision(self):
|
||||
# GH 19458
|
||||
assert Timedelta("30S").total_seconds() == 30.0
|
||||
assert Timedelta("0").total_seconds() == 0.0
|
||||
assert Timedelta("-2S").total_seconds() == -2.0
|
||||
assert Timedelta("5.324S").total_seconds() == 5.324
|
||||
assert (Timedelta("30S").total_seconds() - 30.0) < 1e-20
|
||||
assert (30.0 - Timedelta("30S").total_seconds()) < 1e-20
|
||||
|
||||
def test_resolution_string(self):
|
||||
assert Timedelta(days=1).resolution_string == "D"
|
||||
assert Timedelta(days=1, hours=6).resolution_string == "H"
|
||||
assert Timedelta(days=1, minutes=6).resolution_string == "T"
|
||||
assert Timedelta(days=1, seconds=6).resolution_string == "S"
|
||||
assert Timedelta(days=1, milliseconds=6).resolution_string == "L"
|
||||
assert Timedelta(days=1, microseconds=6).resolution_string == "U"
|
||||
assert Timedelta(days=1, nanoseconds=6).resolution_string == "N"
|
||||
|
||||
def test_resolution_deprecated(self):
|
||||
# GH#21344
|
||||
td = Timedelta(days=4, hours=3)
|
||||
result = td.resolution
|
||||
assert result == Timedelta(nanoseconds=1)
|
||||
|
||||
# Check that the attribute is available on the class, mirroring
|
||||
# the stdlib timedelta behavior
|
||||
result = Timedelta.resolution
|
||||
assert result == Timedelta(nanoseconds=1)
|
||||
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
"value, expected",
|
||||
[
|
||||
(Timedelta("10S"), True),
|
||||
(Timedelta("-10S"), True),
|
||||
(Timedelta(10, unit="ns"), True),
|
||||
(Timedelta(0, unit="ns"), False),
|
||||
(Timedelta(-10, unit="ns"), True),
|
||||
(Timedelta(None), True),
|
||||
(NaT, True),
|
||||
],
|
||||
)
|
||||
def test_truthiness(value, expected):
|
||||
# https://github.com/pandas-dev/pandas/issues/21484
|
||||
assert bool(value) is expected
|
||||
|
||||
|
||||
def test_timedelta_attribute_precision():
|
||||
# GH 31354
|
||||
td = Timedelta(1552211999999999872, unit="ns")
|
||||
result = td.days * 86400
|
||||
result += td.seconds
|
||||
result *= 1000000
|
||||
result += td.microseconds
|
||||
result *= 1000
|
||||
result += td.nanoseconds
|
||||
expected = td.value
|
||||
assert result == expected
|
||||
Reference in New Issue
Block a user