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"""Test timezone aware recurrence date times."""
from datetime import datetime
from dateutil import tz
from django.test import TestCase
from django.test import override_settings
import recurrence
from recurrence import Recurrence, Rule
from recurrence.forms import RecurrenceField
from tests.models import EventWithNoNulls
@override_settings(RECURRENCE_USE_TZ=True, USE_TZ=True)
class FieldTest(TestCase):
def test_strip_dtstart_and_dtend_if_required(self):
"""Test that naive datetimes will get converted to UTC and returned as UTC."""
rule = Rule(
recurrence.WEEKLY
)
limits = Recurrence(
dtstart=datetime(2014, 1, 1, 0, 0, 0),
dtend=datetime(2014, 2, 3, 0, 0, 0),
rrules=[rule]
)
value = recurrence.serialize(limits)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.rrules == [rule]
assert cleaned_value.dtstart == datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz.UTC)
assert cleaned_value.dtend == datetime(2014, 2, 3, 0, 0, 0, tzinfo=tz.UTC)
field = RecurrenceField(accept_dtstart=False, accept_dtend=False)
cleaned_value = field.clean(value)
assert cleaned_value != limits
assert cleaned_value.dtstart is None
assert cleaned_value.dtend is None
def test_dt_start_and_dtend_converts_to_utc(self):
"""Convert the values for dtstart and dtend to UTC."""
tz_adak = tz.gettz('America/Adak')
limits = Recurrence(
dtstart=datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak),
dtend=datetime(2014, 2, 3, 0, 0, 0, tzinfo=tz_adak),
)
value = recurrence.serialize(limits)
field = RecurrenceField(required=False)
cleaned_value = field.clean(value)
assert cleaned_value.dtstart == datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak).astimezone(tz.UTC)
assert cleaned_value.dtend == datetime(2014, 2, 3, 0, 0, 0, tzinfo=tz_adak).astimezone(tz.UTC)
assert cleaned_value.dtstart.tzname() == 'UTC'
assert cleaned_value.dtend.tzname() == 'UTC'
def test_naive_rdates_converted_to_utc(self):
limits = Recurrence(
rdates=[
datetime(2014, 1, 1, 0, 0, 0),
datetime(2014, 1, 2, 0, 0, 0),
],
)
value = recurrence.serialize(limits)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.rdates == [
datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz.UTC),
datetime(2014, 1, 2, 0, 0, 0, tzinfo=tz.UTC),
]
for rdate in cleaned_value.rdates:
assert rdate.tzname() == 'UTC'
def test_aware_rdates_converted_to_utc(self):
tz_adak = tz.gettz('America/Adak')
limits = Recurrence(
rdates=[
datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak),
datetime(2014, 1, 2, 0, 0, 0, tzinfo=tz_adak),
],
)
value = recurrence.serialize(limits)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.rdates == [
datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak).astimezone(tz.UTC),
datetime(2014, 1, 2, 0, 0, 0, tzinfo=tz_adak).astimezone(tz.UTC),
]
for rdate in cleaned_value.rdates:
assert rdate.tzname() == 'UTC'
def test_naive_exdates_converted_to_utc(self):
limits = Recurrence(
exdates=[
datetime(2014, 1, 1, 0, 0, 0),
datetime(2014, 1, 2, 0, 0, 0),
],
)
value = recurrence.serialize(limits)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.exdates == [
datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz.UTC),
datetime(2014, 1, 2, 0, 0, 0, tzinfo=tz.UTC),
]
for rdate in cleaned_value.exdates:
assert rdate.tzname() == 'UTC'
def test_aware_exdates_converted_to_utc(self):
tz_adak = tz.gettz('America/Adak')
limits = Recurrence(
exdates=[
datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak),
datetime(2014, 1, 2, 0, 0, 0, tzinfo=tz_adak),
],
)
value = recurrence.serialize(limits)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.exdates == [
datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak).astimezone(tz.UTC),
datetime(2014, 1, 2, 0, 0, 0, tzinfo=tz_adak).astimezone(tz.UTC),
]
for rdate in cleaned_value.exdates:
assert rdate.tzname() == 'UTC'
def test_naive_until_gets_converted_to_utc(self):
recurs = Recurrence(
rrules=[Rule(
recurrence.DAILY,
until=datetime(2014, 1, 1, 0, 0, 0))
],
)
value = recurrence.serialize(recurs)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.rrules[0].until == datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz.UTC)
def test_aware_until_gets_converted_to_utc(self):
tz_adak = tz.gettz('America/Adak')
until = datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz_adak)
recurs = Recurrence(
rrules=[Rule(
recurrence.DAILY,
until=until)
],
)
value = recurrence.serialize(recurs)
field = RecurrenceField()
cleaned_value = field.clean(value)
assert cleaned_value.rrules[0].until == until.astimezone(tz.UTC)
@override_settings(RECURRENCE_USE_TZ=True, USE_TZ=True)
class SaveTest(TestCase):
def test_recurrence_object_is_saved(self):
"""Test that naive datetimes will get converted to UTC and returned as UTC"""
rule = Rule(
recurrence.WEEKLY
)
limits = Recurrence(
dtstart=datetime(2014, 1, 1, 0, 0, 0),
dtend=datetime(2014, 2, 3, 0, 0, 0),
rrules=[rule]
)
event = EventWithNoNulls.objects.create(
recurs=limits
)
event.refresh_from_db()
instances = event.recurs.between(
datetime(2010, 1, 1, 0, 0, 0, tzinfo=tz.UTC),
datetime(2020, 12, 31, 0, 0, 0, tzinfo=tz.UTC)
)
assert instances == [
datetime(2014, 1, 1, 0, 0, tzinfo=tz.UTC),
datetime(2014, 1, 8, 0, 0, tzinfo=tz.UTC),
datetime(2014, 1, 15, 0, 0, tzinfo=tz.UTC),
datetime(2014, 1, 22, 0, 0, tzinfo=tz.UTC),
datetime(2014, 1, 29, 0, 0, tzinfo=tz.UTC),
datetime(2014, 2, 3, 0, 0, tzinfo=tz.UTC) # We always get dtend
]
event = EventWithNoNulls.objects.get(pk=event.pk)
expected_limits = Recurrence(
dtstart=datetime(2014, 1, 1, 0, 0, 0, tzinfo=tz.UTC),
dtend=datetime(2014, 2, 3, 0, 0, 0, tzinfo=tz.UTC),
rrules=[rule]
)
assert event.recurs == expected_limits
assert event.recurs.between(
datetime(2010, 1, 1, 0, 0, 0, tzinfo=tz.UTC),
datetime(2020, 12, 31, 0, 0, 0, tzinfo=tz.UTC)
) == instances
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