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import os
import pytest
from django import forms
from django.db import models
from timezone_field import TimeZoneField, backends
USA_TZS = [
"US/Alaska",
"US/Arizona",
"US/Central",
"US/Eastern",
"US/Hawaii",
"US/Mountain",
"US/Pacific",
]
# we have to define these Models at import time, so django will create the DB table
# we then redefine-the model at runtime to customize the fields further
class _Model(models.Model):
tz = TimeZoneField()
tz_opt = TimeZoneField()
tz_opt_default = TimeZoneField()
class _ModelChoice(models.Model):
tz_superset = TimeZoneField()
tz_subset = TimeZoneField()
class _ModelOldChoiceFormat(models.Model):
tz_superset = TimeZoneField()
tz_subset = TimeZoneField()
@pytest.fixture
def Model(use_pytz):
class _Model(models.Model):
tz = TimeZoneField(use_pytz=use_pytz)
tz_opt = TimeZoneField(blank=True, use_pytz=use_pytz)
tz_opt_default = TimeZoneField(blank=True, default="America/Los_Angeles", use_pytz=use_pytz)
yield _Model
@pytest.fixture
def ModelChoice(use_pytz, all_tzstrs):
class _ModelChoice(models.Model):
tz_superset = TimeZoneField(
choices=[(tz, tz) for tz in all_tzstrs],
blank=True,
use_pytz=use_pytz,
)
tz_subset = TimeZoneField(
choices=[(tz, tz) for tz in USA_TZS],
blank=True,
use_pytz=use_pytz,
)
yield _ModelChoice
@pytest.fixture
def ModelOldChoiceFormat(use_pytz, all_tzstrs, to_tzobj):
class _ModelOldChoiceFormat(models.Model):
tz_superset = TimeZoneField(
choices=[(to_tzobj(tz), tz) for tz in all_tzstrs],
blank=True,
use_pytz=use_pytz,
)
tz_subset = TimeZoneField(
choices=[(to_tzobj(tz), tz) for tz in USA_TZS],
blank=True,
use_pytz=use_pytz,
)
yield _ModelOldChoiceFormat
@pytest.fixture
def ModelForm(Model):
class _ModelForm(forms.ModelForm):
class Meta:
model = Model
fields = "__all__"
yield _ModelForm
@pytest.fixture(params=[(os.environ["TZ_ENGINE"])] if "TZ_ENGINE" in os.environ else ["pytz", "zoneinfo"])
def use_pytz(request):
yield request.param == "pytz"
@pytest.fixture
def to_tzobj(use_pytz):
tz_backend = backends.get_tz_backend(use_pytz)
yield tz_backend.to_tzobj
@pytest.fixture
def utc_tzobj(use_pytz):
tz_backend = backends.get_tz_backend(use_pytz)
yield tz_backend.utc_tzobj
@pytest.fixture
def all_tzstrs(use_pytz):
tz_backend = backends.get_tz_backend(use_pytz)
yield tz_backend.all_tzstrs
@pytest.fixture
def base_tzstrs(use_pytz):
tz_backend = backends.get_tz_backend(use_pytz)
yield tz_backend.base_tzstrs
@pytest.fixture
def pst():
yield "America/Los_Angeles"
@pytest.fixture
def pst_tz(to_tzobj, pst):
yield to_tzobj(pst) # for pytz: pytz.tzinfo.DstTzInfo
@pytest.fixture
def gmt():
yield "GMT"
@pytest.fixture
def gmt_tz(to_tzobj, gmt):
yield to_tzobj(gmt) # for pytz: pytz.tzinfo.StaticTzInfo
@pytest.fixture
def utc():
yield "UTC"
@pytest.fixture
def utc_tz(utc_tzobj):
yield utc_tzobj # for pytz: pytz.utc singleton
@pytest.fixture
def uncommon_tz(use_pytz):
# there are no Zoneinfo "uncommon" tzs
yield "Singapore" if use_pytz else "foobar"
@pytest.fixture
def invalid_tz():
yield "foobar"
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