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from __future__ import annotations
from datetime import datetime
import pytest
import zoneinfo
import pendulum
from pendulum import timezone
from pendulum.helpers import PreciseDiff
from pendulum.helpers import days_in_year
from pendulum.helpers import precise_diff
from pendulum.helpers import week_day
def assert_diff(
diff: PreciseDiff,
years: int = 0,
months: int = 0,
days: int = 0,
hours: int = 0,
minutes: int = 0,
seconds: int = 0,
microseconds: int = 0,
) -> None:
assert diff.years == years
assert diff.months == months
assert diff.days == days
assert diff.hours == hours
assert diff.minutes == minutes
assert diff.seconds == seconds
assert diff.microseconds == microseconds
def test_precise_diff() -> None:
dt1 = datetime(2003, 3, 1, 0, 0, 0)
dt2 = datetime(2003, 1, 31, 23, 59, 59)
diff = precise_diff(dt1, dt2)
assert_diff(diff, months=-1, seconds=-1)
diff = precise_diff(dt2, dt1)
assert_diff(diff, months=1, seconds=1)
dt1 = datetime(2012, 3, 1, 0, 0, 0)
dt2 = datetime(2012, 1, 31, 23, 59, 59)
diff = precise_diff(dt1, dt2)
assert_diff(diff, months=-1, seconds=-1)
assert diff.total_days == -30
diff = precise_diff(dt2, dt1)
assert_diff(diff, months=1, seconds=1)
dt1 = datetime(2001, 1, 1)
dt2 = datetime(2003, 9, 17, 20, 54, 47, 282310)
diff = precise_diff(dt1, dt2)
assert_diff(
diff,
years=2,
months=8,
days=16,
hours=20,
minutes=54,
seconds=47,
microseconds=282310,
)
dt1 = datetime(2017, 2, 17, 16, 5, 45, 123456)
dt2 = datetime(2018, 2, 17, 16, 5, 45, 123256)
diff = precise_diff(dt1, dt2)
assert_diff(
diff, months=11, days=30, hours=23, minutes=59, seconds=59, microseconds=999800
)
# DST
tz = timezone("America/Toronto")
dt1 = tz.datetime(2017, 3, 7)
dt2 = tz.datetime(2017, 3, 13)
diff = precise_diff(dt1, dt2)
assert_diff(diff, days=6, hours=0)
def test_precise_diff_timezone() -> None:
paris = pendulum.timezone("Europe/Paris")
toronto = pendulum.timezone("America/Toronto")
dt1 = paris.datetime(2013, 3, 31, 1, 30)
dt2 = paris.datetime(2013, 4, 1, 1, 30)
diff = precise_diff(dt1, dt2)
assert_diff(diff, days=1, hours=0)
assert diff.total_days == 1
dt2 = toronto.datetime(2013, 4, 1, 1, 30)
diff = precise_diff(dt1, dt2)
assert_diff(diff, days=1, hours=5)
assert diff.total_days == 1
paris_tz = zoneinfo.ZoneInfo("Europe/Paris")
toronto_tz = zoneinfo.ZoneInfo("America/Toronto")
dt1 = datetime(2013, 3, 31, 1, 30, tzinfo=paris_tz)
dt2 = datetime(2013, 4, 1, 1, 30, tzinfo=paris_tz)
diff = precise_diff(dt1, dt2)
assert_diff(diff, days=1, hours=0)
assert diff.total_days == 1
dt2 = datetime(2013, 4, 1, 1, 30, tzinfo=toronto_tz)
diff = precise_diff(dt1, dt2)
assert_diff(diff, days=1, hours=5)
# Issue238
dt1 = timezone("UTC").datetime(2018, 6, 20, 1, 30)
dt2 = timezone("Europe/Paris").datetime(2018, 6, 20, 3, 40) # UTC+2
diff = precise_diff(dt1, dt2)
assert_diff(diff, minutes=10)
assert diff.total_days == 0
def test_week_day() -> None:
assert week_day(2017, 6, 2) == 5
assert week_day(2017, 1, 1) == 7
def test_days_in_years() -> None:
assert days_in_year(2017) == 365
assert days_in_year(2016) == 366
def test_locale() -> None:
dt = pendulum.datetime(2000, 11, 10, 12, 34, 56, 123456)
pendulum.set_locale("fr")
assert pendulum.get_locale() == "fr"
assert dt.format("MMMM") == "novembre"
assert dt.date().format("MMMM") == "novembre"
def test_set_locale_invalid() -> None:
with pytest.raises(ValueError):
pendulum.set_locale("invalid")
@pytest.mark.parametrize(
"locale", ["DE", "pt-BR", "pt-br", "PT-br", "PT-BR", "pt_br", "PT_BR", "PT_BR"]
)
def test_set_locale_malformed_locale(locale: str) -> None:
pendulum.set_locale(locale)
pendulum.set_locale("en")
def test_week_starts_at() -> None:
pendulum.week_starts_at(pendulum.SATURDAY)
dt = pendulum.now().start_of("week")
assert dt.day_of_week == pendulum.SATURDAY
assert dt.date().day_of_week == pendulum.SATURDAY
def test_week_starts_at_invalid_value() -> None:
with pytest.raises(ValueError):
pendulum.week_starts_at(-1) # type: ignore[arg-type]
with pytest.raises(ValueError):
pendulum.week_starts_at(11) # type: ignore[arg-type]
def test_week_ends_at() -> None:
pendulum.week_ends_at(pendulum.SATURDAY)
dt = pendulum.now().end_of("week")
assert dt.day_of_week == pendulum.SATURDAY
assert dt.date().day_of_week == pendulum.SATURDAY
def test_week_ends_at_invalid_value() -> None:
with pytest.raises(ValueError):
pendulum.week_ends_at(-1) # type: ignore[arg-type]
with pytest.raises(ValueError):
pendulum.week_ends_at(11) # type: ignore[arg-type]
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