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from __future__ import annotations
from datetime import timedelta
import pytest
import pendulum
from tests.conftest import assert_datetime
def test_add_years_positive():
assert pendulum.datetime(1975, 1, 1).add(years=1).year == 1976
def test_add_years_zero():
assert pendulum.datetime(1975, 1, 1).add(years=0).year == 1975
def test_add_years_negative():
assert pendulum.datetime(1975, 1, 1).add(years=-1).year == 1974
def test_add_months_positive():
assert pendulum.datetime(1975, 12, 1).add(months=1).month == 1
def test_add_months_zero():
assert pendulum.datetime(1975, 12, 1).add(months=0).month == 12
def test_add_months_negative():
assert pendulum.datetime(1975, 12, 1).add(months=-1).month == 11
def test_add_month_with_overflow():
assert pendulum.datetime(2012, 1, 31).add(months=1).month == 2
def test_add_days_positive():
assert pendulum.datetime(1975, 5, 31).add(days=1).day == 1
def test_add_days_zero():
assert pendulum.datetime(1975, 5, 31).add(days=0).day == 31
def test_add_days_negative():
assert pendulum.datetime(1975, 5, 31).add(days=-1).day == 30
def test_add_weeks_positive():
assert pendulum.datetime(1975, 5, 21).add(weeks=1).day == 28
def test_add_weeks_zero():
assert pendulum.datetime(1975, 5, 21).add(weeks=0).day == 21
def test_add_weeks_negative():
assert pendulum.datetime(1975, 5, 21).add(weeks=-1).day == 14
def test_add_hours_positive():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(hours=1).hour == 1
def test_add_hours_zero():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(hours=0).hour == 0
def test_add_hours_negative():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(hours=-1).hour == 23
def test_add_minutes_positive():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(minutes=1).minute == 1
def test_add_minutes_zero():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(minutes=0).minute == 0
def test_add_minutes_negative():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(minutes=-1).minute == 59
def test_add_seconds_positive():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(seconds=1).second == 1
def test_add_seconds_zero():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(seconds=0).second == 0
def test_add_seconds_negative():
assert pendulum.datetime(1975, 5, 21, 0, 0, 0).add(seconds=-1).second == 59
def test_add_timedelta():
delta = timedelta(days=6, seconds=45, microseconds=123456)
d = pendulum.datetime(2015, 3, 14, 3, 12, 15, 654321)
d = d + delta
assert d.day == 20
assert d.minute == 13
assert d.second == 0
assert d.microsecond == 777777
def test_add_duration():
duration = pendulum.duration(
years=2, months=3, days=6, seconds=45, microseconds=123456
)
d = pendulum.datetime(2015, 3, 14, 3, 12, 15, 654321)
d = d + duration
assert d.year == 2017
assert d.month == 6
assert d.day == 20
assert d.hour == 3
assert d.minute == 13
assert d.second == 0
assert d.microsecond == 777777
def test_addition_invalid_type():
d = pendulum.datetime(2015, 3, 14, 3, 12, 15, 654321)
with pytest.raises(TypeError):
d + 3
with pytest.raises(TypeError):
3 + d
def test_add_to_fixed_timezones():
dt = pendulum.parse("2015-03-08T01:00:00-06:00")
dt = dt.add(weeks=1)
dt = dt.add(hours=1)
assert_datetime(dt, 2015, 3, 15, 2, 0, 0)
assert dt.timezone_name == "-06:00"
assert dt.offset == -6 * 3600
def test_add_time_to_new_transition_skipped():
dt = pendulum.datetime(2013, 3, 31, 1, 59, 59, 999999, tz="Europe/Paris")
assert_datetime(dt, 2013, 3, 31, 1, 59, 59, 999999)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 3600
assert not dt.is_dst()
dt = dt.add(microseconds=1)
assert_datetime(dt, 2013, 3, 31, 3, 0, 0, 0)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 7200
assert dt.is_dst()
dt = pendulum.datetime(2013, 3, 10, 1, 59, 59, 999999, tz="America/New_York")
assert_datetime(dt, 2013, 3, 10, 1, 59, 59, 999999)
assert dt.timezone_name == "America/New_York"
assert dt.offset == -5 * 3600
assert not dt.is_dst()
dt = dt.add(microseconds=1)
assert_datetime(dt, 2013, 3, 10, 3, 0, 0, 0)
assert dt.timezone_name == "America/New_York"
assert dt.offset == -4 * 3600
assert dt.is_dst()
dt = pendulum.datetime(1957, 4, 28, 1, 59, 59, 999999, tz="America/New_York")
assert_datetime(dt, 1957, 4, 28, 1, 59, 59, 999999)
assert dt.timezone_name == "America/New_York"
assert dt.offset == -5 * 3600
assert not dt.is_dst()
dt = dt.add(microseconds=1)
assert_datetime(dt, 1957, 4, 28, 3, 0, 0, 0)
assert dt.timezone_name == "America/New_York"
assert dt.offset == -4 * 3600
assert dt.is_dst()
def test_add_time_to_new_transition_skipped_big():
dt = pendulum.datetime(2013, 3, 31, 1, tz="Europe/Paris")
assert_datetime(dt, 2013, 3, 31, 1, 0, 0, 0)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 3600
assert not dt.is_dst()
dt = dt.add(weeks=1)
assert_datetime(dt, 2013, 4, 7, 1, 0, 0, 0)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 7200
assert dt.is_dst()
def test_add_time_to_new_transition_repeated():
dt = pendulum.datetime(2013, 10, 27, 1, 59, 59, 999999, tz="Europe/Paris")
dt = dt.add(hours=1)
assert_datetime(dt, 2013, 10, 27, 2, 59, 59, 999999)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 7200
assert dt.is_dst()
dt = dt.add(microseconds=1)
assert_datetime(dt, 2013, 10, 27, 2, 0, 0, 0)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 3600
assert not dt.is_dst()
dt = pendulum.datetime(2013, 11, 3, 0, 59, 59, 999999, tz="America/New_York")
dt = dt.add(hours=1)
assert_datetime(dt, 2013, 11, 3, 1, 59, 59, 999999)
assert dt.timezone_name == "America/New_York"
assert dt.offset == -4 * 3600
assert dt.is_dst()
dt = dt.add(microseconds=1)
assert_datetime(dt, 2013, 11, 3, 1, 0, 0, 0)
assert dt.timezone_name == "America/New_York"
assert dt.offset == -5 * 3600
assert not dt.is_dst()
def test_add_time_to_new_transition_repeated_big():
dt = pendulum.datetime(2013, 10, 27, 1, tz="Europe/Paris")
assert_datetime(dt, 2013, 10, 27, 1, 0, 0, 0)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 7200
assert dt.is_dst()
dt = dt.add(weeks=1)
assert_datetime(dt, 2013, 11, 3, 1, 0, 0, 0)
assert dt.timezone_name == "Europe/Paris"
assert dt.offset == 3600
assert not dt.is_dst()
def test_add_duration_across_transition():
dt = pendulum.datetime(2017, 3, 11, 10, 45, tz="America/Los_Angeles")
new = dt + pendulum.duration(hours=24)
assert_datetime(new, 2017, 3, 12, 11, 45)
def test_add_duration_across_transition_days():
dt = pendulum.datetime(2017, 3, 11, 10, 45, tz="America/Los_Angeles")
new = dt + pendulum.duration(days=1)
assert_datetime(new, 2017, 3, 12, 10, 45)
dt = pendulum.datetime(2023, 11, 5, 0, 0, tz="America/Chicago")
new = dt + pendulum.duration(days=1)
assert_datetime(new, 2023, 11, 6, 0, 0)
def test_interval_over_midnight_tz():
start = pendulum.datetime(2018, 2, 25, tz="Europe/Paris")
end = start.add(hours=1)
interval = end - start
new_end = start + interval
assert new_end == end
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