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from datetime import datetime
import pytest
from timezone_field.choices import standard, with_gmt_offset
@pytest.fixture
def tzs1():
# test timezones out of order, but they should appear in order in result.
# avoiding an timezones that go through a Daylight Savings change here
yield [
"Asia/Kathmandu", # 45 min off the hour
"Asia/Kolkata", # 30 min off the hour
"America/Argentina/Buenos_Aires", # on the hour
"Asia/Qatar", # on the hour
]
@pytest.fixture
def tzs2():
# test timezones out of order, but they should appear in order in result.
yield [
"Europe/London",
"Canada/Newfoundland", # 30 min off the hour
"America/Los_Angeles", # on the hour
"America/Santiago", # southern hemisphere
]
@pytest.fixture
def tzs3_names():
yield [
"America/Los_Angeles",
"Europe/London",
"America/Argentina/Buenos_Aires",
]
@pytest.fixture
def tzs3_names_sorted():
yield [
"America/Argentina/Buenos_Aires",
"America/Los_Angeles",
"Europe/London",
]
@pytest.fixture
def tzs3_standard_displays():
yield [
"America/Argentina/Buenos Aires",
"America/Los Angeles",
"Europe/London",
]
def test_with_gmt_offset_using_timezone_names(tzs1, use_pytz):
assert with_gmt_offset(tzs1, use_pytz=use_pytz) == [
("America/Argentina/Buenos_Aires", "GMT-03:00 America/Argentina/Buenos Aires"),
("Asia/Qatar", "GMT+03:00 Asia/Qatar"),
("Asia/Kolkata", "GMT+05:30 Asia/Kolkata"),
("Asia/Kathmandu", "GMT+05:45 Asia/Kathmandu"),
]
def test_with_gmt_offset_using_timezone_objects(tzs1, use_pytz, to_tzobj):
tz_objects = [to_tzobj(name) for name in tzs1]
assert with_gmt_offset(tz_objects, use_pytz=use_pytz) == [
(
to_tzobj("America/Argentina/Buenos_Aires"),
"GMT-03:00 America/Argentina/Buenos Aires",
),
(to_tzobj("Asia/Qatar"), "GMT+03:00 Asia/Qatar"),
(to_tzobj("Asia/Kolkata"), "GMT+05:30 Asia/Kolkata"),
(to_tzobj("Asia/Kathmandu"), "GMT+05:45 Asia/Kathmandu"),
]
def test_with_gmt_offset_in_northern_summer(tzs2, use_pytz, utc_tzobj):
now = datetime(2020, 7, 15, tzinfo=utc_tzobj)
assert with_gmt_offset(tzs2, now=now, use_pytz=use_pytz) == [
("America/Los_Angeles", "GMT-07:00 America/Los Angeles"),
("America/Santiago", "GMT-04:00 America/Santiago"),
("Canada/Newfoundland", "GMT-02:30 Canada/Newfoundland"),
("Europe/London", "GMT+01:00 Europe/London"),
]
def test_with_gmt_offset_in_northern_winter(tzs2, use_pytz, utc_tzobj):
now = datetime(2020, 1, 15, tzinfo=utc_tzobj)
assert with_gmt_offset(tzs2, now=now, use_pytz=use_pytz) == [
("America/Los_Angeles", "GMT-08:00 America/Los Angeles"),
("Canada/Newfoundland", "GMT-03:30 Canada/Newfoundland"),
("America/Santiago", "GMT-03:00 America/Santiago"),
("Europe/London", "GMT+00:00 Europe/London"),
]
def test_with_gmt_offset_transition_forward(use_pytz, utc_tzobj):
tz_names = ["Europe/London"]
before = datetime(2021, 3, 28, 0, 59, 59, 999999, tzinfo=utc_tzobj)
after = datetime(2021, 3, 28, 1, 0, 0, 0, tzinfo=utc_tzobj)
assert with_gmt_offset(tz_names, now=before, use_pytz=use_pytz) == [("Europe/London", "GMT+00:00 Europe/London")]
assert with_gmt_offset(tz_names, now=after, use_pytz=use_pytz) == [("Europe/London", "GMT+01:00 Europe/London")]
def test_with_gmt_offset_transition_backward(use_pytz, utc_tzobj):
tz_names = ["Europe/London"]
before = datetime(2021, 10, 31, 0, 59, 59, 999999, tzinfo=utc_tzobj)
after = datetime(2021, 10, 31, 1, 0, 0, 0, tzinfo=utc_tzobj)
assert with_gmt_offset(tz_names, now=before, use_pytz=use_pytz) == [("Europe/London", "GMT+01:00 Europe/London")]
assert with_gmt_offset(tz_names, now=after, use_pytz=use_pytz) == [("Europe/London", "GMT+00:00 Europe/London")]
def test_standard_using_timezone_names(tzs3_names, tzs3_names_sorted, tzs3_standard_displays):
assert standard(tzs3_names) == list(zip(tzs3_names_sorted, tzs3_standard_displays))
def test_standard_using_timezone_objects(tzs3_names, tzs3_names_sorted, tzs3_standard_displays, to_tzobj):
tzs3_objects = [to_tzobj(tz) for tz in tzs3_names]
tzs3_objects_sorted = [to_tzobj(tz) for tz in tzs3_names_sorted]
assert standard(tzs3_objects) == list(zip(tzs3_objects_sorted, tzs3_standard_displays))
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