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import datetime
from django.test import TestCase, skipIfDBFeature
from django.utils.timezone import utc
from .models import Donut, RumBaba
class DataTypesTestCase(TestCase):
def test_boolean_type(self):
d = Donut(name="Apple Fritter")
self.assertFalse(d.is_frosted)
self.assertIsNone(d.has_sprinkles)
d.has_sprinkles = True
self.assertTrue(d.has_sprinkles)
d.save()
d2 = Donut.objects.get(name="Apple Fritter")
self.assertFalse(d2.is_frosted)
self.assertTrue(d2.has_sprinkles)
def test_date_type(self):
d = Donut(name="Apple Fritter")
d.baked_date = datetime.date(year=1938, month=6, day=4)
d.baked_time = datetime.time(hour=5, minute=30)
d.consumed_at = datetime.datetime(
year=2007, month=4, day=20, hour=16, minute=19, second=59
)
d.save()
d2 = Donut.objects.get(name="Apple Fritter")
self.assertEqual(d2.baked_date, datetime.date(1938, 6, 4))
self.assertEqual(d2.baked_time, datetime.time(5, 30))
self.assertEqual(d2.consumed_at, datetime.datetime(2007, 4, 20, 16, 19, 59))
def test_time_field(self):
# Test for ticket #12059: TimeField wrongly handling datetime.datetime object.
d = Donut(name="Apple Fritter")
d.baked_time = datetime.datetime(
year=2007, month=4, day=20, hour=16, minute=19, second=59
)
d.save()
d2 = Donut.objects.get(name="Apple Fritter")
self.assertEqual(d2.baked_time, datetime.time(16, 19, 59))
def test_year_boundaries(self):
"""Year boundary tests (ticket #3689)"""
Donut.objects.create(
name="Date Test 2007",
baked_date=datetime.datetime(year=2007, month=12, day=31),
consumed_at=datetime.datetime(
year=2007, month=12, day=31, hour=23, minute=59, second=59
),
)
Donut.objects.create(
name="Date Test 2006",
baked_date=datetime.datetime(year=2006, month=1, day=1),
consumed_at=datetime.datetime(year=2006, month=1, day=1),
)
self.assertEqual(
"Date Test 2007", Donut.objects.filter(baked_date__year=2007)[0].name
)
self.assertEqual(
"Date Test 2006", Donut.objects.filter(baked_date__year=2006)[0].name
)
Donut.objects.create(
name="Apple Fritter",
consumed_at=datetime.datetime(
year=2007, month=4, day=20, hour=16, minute=19, second=59
),
)
self.assertEqual(
["Apple Fritter", "Date Test 2007"],
list(
Donut.objects.filter(consumed_at__year=2007)
.order_by("name")
.values_list("name", flat=True)
),
)
self.assertEqual(0, Donut.objects.filter(consumed_at__year=2005).count())
self.assertEqual(0, Donut.objects.filter(consumed_at__year=2008).count())
def test_textfields_str(self):
"""TextField values returned from the database should be str."""
d = Donut.objects.create(name="Jelly Donut", review="Outstanding")
newd = Donut.objects.get(id=d.id)
self.assertIsInstance(newd.review, str)
@skipIfDBFeature("supports_timezones")
def test_error_on_timezone(self):
"""Regression test for #8354: the MySQL and Oracle backends should raise
an error if given a timezone-aware datetime object."""
dt = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=utc)
d = Donut(name="Bear claw", consumed_at=dt)
# MySQL backend does not support timezone-aware datetimes.
with self.assertRaises(ValueError):
d.save()
def test_datefield_auto_now_add(self):
"""Regression test for #10970, auto_now_add for DateField should store
a Python datetime.date, not a datetime.datetime"""
b = RumBaba.objects.create()
# Verify we didn't break DateTimeField behavior
self.assertIsInstance(b.baked_timestamp, datetime.datetime)
# We need to test this way because datetime.datetime inherits
# from datetime.date:
self.assertIsInstance(b.baked_date, datetime.date)
self.assertNotIsInstance(b.baked_date, datetime.datetime)
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