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"""Test that zoneinfo timezones can be used.
See also Issue https://github.com/niccokunzmann/python-recurring-ical-events/issues/57
"""
import sys
from datetime import datetime, timedelta
import pytest
import pytz
from icalendar import Calendar, Event, vDDDTypes
import recurring_ical_events
def test_zoneinfo_example_yields_events(ZoneInfo): # noqa: N803
"""Test that there is no error.
Source code is taken from Issue 57.
"""
tz = ZoneInfo("Europe/London")
cal = Calendar()
event = Event()
cal.add_component(event)
dt = datetime(2021, 6, 24, 21, 15).astimezone().astimezone(tz)
# datetime.datetime(2021, 6, 24, 21, 15, tzinfo=zoneinfo.ZoneInfo(key='Europe/London'))
d = dt.date()
event["dtstart"] = vDDDTypes(dt)
events = recurring_ical_events.of(cal).between(d, d + timedelta(1))
assert len(events) == 1, "The event was found."
def test_zoneinfo_must_be_installed_if_it_is_possible():
"""Make sure that zoneinfo and tzdata are installed if possible."""
python_version = sys.version_info[:2]
if python_version < (3, 7):
return # no zoneinfo
from importlib.util import find_spec as module_exists
if python_version <= (3, 8):
assert module_exists(
"backports.zoneinfo"
), "zoneinfo should be installed with pip install backports.zoneinfo"
else:
assert module_exists("zoneinfo"), "We assume that zoneinfo exists."
assert module_exists(
"tzdata"
), "tzdata is necessary to test current time zone understanding."
@pytest.mark.parametrize(
"dt1",
[
datetime(2019, 4, 24, 19),
pytz.timezone("Europe/Berlin").localize(datetime(2019, 4, 24, 19)),
pytz.timezone("America/New_York").localize(datetime(2019, 4, 24, 19)),
],
)
def test_zoneinfo_consistent_conversion(calendars, dt1):
"""Make sure that the conversion function actually works."""
dt2 = calendars.consistent_tz(dt1)
assert dt1.year == dt2.year
assert dt1.month == dt2.month
assert dt1.day == dt2.day
assert dt1.hour == dt2.hour
assert dt1.minute == dt2.minute
assert dt1.second == dt2.second
ATTRS = "year,month,day,hour,minute,second".split(",")
@pytest.mark.parametrize(
("dt", "tz", "times"),
[
(datetime(2019, 2, 22, 4, 30), "Europe/Berlin", (2019, 2, 22, 4, 30)),
(datetime(2019, 2, 22, 4, 30), "UTC", (2019, 2, 22, 4, 30)),
],
)
def test_convert_to_date(dt, tz, times, ZoneInfo): # noqa: N803
"""Check that a datetime conversion takes place properly."""
new = recurring_ical_events.convert_to_datetime(dt, ZoneInfo(tz))
converted = ()
for attr, _ in zip(ATTRS, times):
converted += (getattr(new, attr),)
assert converted == times
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