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82 lines
3.9 KiB
Python
82 lines
3.9 KiB
Python
from datetime import datetime, timedelta, timezone
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from zoneinfo import ZoneInfo
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from django.utils.translation import override as override_language
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from zerver.lib.test_classes import ZulipTestCase
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from zerver.lib.timestamp import (
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TimeZoneMissingError,
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TimeZoneNotUTCError,
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ceiling_to_hour,
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convert_to_UTC,
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datetime_to_global_time,
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datetime_to_timestamp,
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floor_to_day,
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floor_to_hour,
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format_datetime_to_string,
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timestamp_to_datetime,
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)
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class TestTimestamp(ZulipTestCase):
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def test_datetime_and_timestamp_conversions(self) -> None:
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timestamp = 1483228800
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for dt in [
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datetime.fromisoformat("2017-01-01 00:00:00.123+00:00"),
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]:
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self.assertEqual(timestamp_to_datetime(timestamp), dt - timedelta(microseconds=123000))
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self.assertEqual(datetime_to_timestamp(dt), timestamp)
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for dt in [
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datetime.fromisoformat("2017-01-01 00:00:00.123+01:00"),
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datetime.fromisoformat("2017-01-01 00:00:00.123"),
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]:
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with self.assertRaises(TimeZoneNotUTCError):
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datetime_to_timestamp(dt)
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def test_convert_to_UTC(self) -> None:
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utc_datetime = datetime.fromisoformat("2017-01-01 00:00:00.123+00:00")
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for dt in [
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datetime.fromisoformat("2017-01-01 00:00:00.123+00:00"),
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datetime.fromisoformat("2017-01-01 00:00:00.123"),
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datetime.fromisoformat("2017-01-01T05:00:00.123+05:00"),
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]:
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self.assertEqual(convert_to_UTC(dt), utc_datetime)
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def test_enforce_UTC(self) -> None:
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non_utc_datetime = datetime.fromisoformat("2017-01-01 00:00:00.123")
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for function in [floor_to_hour, floor_to_day, ceiling_to_hour, ceiling_to_hour]:
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with self.assertRaises(TimeZoneNotUTCError):
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function(non_utc_datetime)
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def test_format_datetime_to_string(self) -> None:
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=timezone.utc)
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self.assertEqual(format_datetime_to_string(dt, True), "Sat, Feb 3, 2001, 04:05 GMT")
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=timezone(timedelta(hours=7, minutes=8)))
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self.assertEqual(format_datetime_to_string(dt, True), "Sat, Feb 3, 2001, 04:05 GMT+7:08")
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=timezone(-timedelta(hours=7, minutes=8)))
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self.assertEqual(format_datetime_to_string(dt, True), "Sat, Feb 3, 2001, 04:05 GMT-7:08")
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=ZoneInfo("America/Los_Angeles"))
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self.assertEqual(format_datetime_to_string(dt, True), "Sat, Feb 3, 2001, 04:05 PST")
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self.assertRegex(
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format_datetime_to_string(dt, False), r"^Sat, Feb 3, 2001, 4:05[ \u202f]AM PST$"
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)
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with override_language("ja-JP"):
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self.assertEqual(format_datetime_to_string(dt, True), "2001年2月3日(土) 4:05 GMT-8")
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self.assertEqual(
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format_datetime_to_string(dt, False), "2001年2月3日(土) 午前4:05 GMT-8"
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)
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def test_datetime_to_global_time(self) -> None:
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=timezone.utc)
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self.assertEqual(datetime_to_global_time(dt), "<time:2001-02-03T04:05:06+00:00>")
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=timezone(timedelta(hours=7, minutes=8)))
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self.assertEqual(datetime_to_global_time(dt), "<time:2001-02-03T04:05:06+07:08>")
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=timezone(-timedelta(hours=7, minutes=8)))
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self.assertEqual(datetime_to_global_time(dt), "<time:2001-02-03T04:05:06-07:08>")
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dt = datetime(2001, 2, 3, 4, 5, 6, tzinfo=ZoneInfo("America/Los_Angeles"))
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self.assertEqual(datetime_to_global_time(dt), "<time:2001-02-03T04:05:06-08:00>")
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with self.assertRaises(TimeZoneMissingError):
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dt = datetime(2001, 2, 3, 4, 5, 6) # noqa: DTZ001
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datetime_to_global_time(dt)
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