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Code Issues 25 Releases Wiki Activity

Removed DatabaseFeatures.supports_microsecond_precision.

Browse Source 
MySQL 5.5 (refs #28552) was the last database to use it.
This commit is contained in:
Tim Graham 2017-09-22 15:34:24 -04:00
parent 8a1768432b
commit a80903b711
8 changed files with 89 additions and 199 deletions
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3
django/db/backends/base/features.py
View File

@ -70,9 +70,6 @@ class BaseDatabaseFeatures:
# by returning the type used to store duration field? # by returning the type used to store duration field?
supports_temporal_subtraction = False supports_temporal_subtraction = False
# Do time/datetime fields have microsecond precision?
supports_microsecond_precision = True
# Does the __regex lookup support backreferencing and grouping? # Does the __regex lookup support backreferencing and grouping?
supports_regex_backreferencing = True supports_regex_backreferencing = True

44
tests/basic/tests.py
View File

@ -6,8 +6,7 @@ from django.db import DEFAULT_DB_ALIAS, DatabaseError, connections
from django.db.models.manager import BaseManager from django.db.models.manager import BaseManager
from django.db.models.query import EmptyQuerySet, QuerySet from django.db.models.query import EmptyQuerySet, QuerySet
from django.test import ( from django.test import (
SimpleTestCase, TestCase, TransactionTestCase, skipIfDBFeature, SimpleTestCase, TestCase, TransactionTestCase, skipUnlessDBFeature,
skipUnlessDBFeature,
) )
from django.utils.translation import gettext_lazy from django.utils.translation import gettext_lazy
@ -164,9 +163,7 @@ class ModelTest(TestCase):
self.assertNotEqual(Article.objects.get(id__exact=a1.id), Article.objects.get(id__exact=a2.id)) self.assertNotEqual(Article.objects.get(id__exact=a1.id), Article.objects.get(id__exact=a2.id))
@skipUnlessDBFeature('supports_microsecond_precision')
def test_microsecond_precision(self): def test_microsecond_precision(self):
# In PostgreSQL, microsecond-level precision is available.
a9 = Article( a9 = Article(
headline='Article 9', headline='Article 9',
pub_date=datetime(2005, 7, 31, 12, 30, 45, 180), pub_date=datetime(2005, 7, 31, 12, 30, 45, 180),
@ -174,33 +171,6 @@ class ModelTest(TestCase):
a9.save() a9.save()
self.assertEqual(Article.objects.get(pk=a9.pk).pub_date, datetime(2005, 7, 31, 12, 30, 45, 180)) self.assertEqual(Article.objects.get(pk=a9.pk).pub_date, datetime(2005, 7, 31, 12, 30, 45, 180))
@skipIfDBFeature('supports_microsecond_precision')
def test_microsecond_precision_not_supported(self):
# In MySQL, microsecond-level precision isn't always available. You'll
# lose microsecond-level precision once the data is saved.
a9 = Article(
headline='Article 9',
pub_date=datetime(2005, 7, 31, 12, 30, 45, 180),
)
a9.save()
self.assertEqual(
Article.objects.get(id__exact=a9.id).pub_date,
datetime(2005, 7, 31, 12, 30, 45),
)
@skipIfDBFeature('supports_microsecond_precision')
def test_microsecond_precision_not_supported_edge_case(self):
# In MySQL, microsecond-level precision isn't always available. You'll
# lose microsecond-level precision once the data is saved.
a = Article.objects.create(
headline='Article',
pub_date=datetime(2008, 12, 31, 23, 59, 59, 999999),
)
self.assertEqual(
Article.objects.get(pk=a.pk).pub_date,
datetime(2008, 12, 31, 23, 59, 59),
)
def test_manually_specify_primary_key(self): def test_manually_specify_primary_key(self):
# You can manually specify the primary key when creating a new object. # You can manually specify the primary key when creating a new object.
a101 = Article( a101 = Article(
@ -667,14 +637,10 @@ class SelectOnSaveTests(TestCase):
class ModelRefreshTests(TestCase): class ModelRefreshTests(TestCase):
def _truncate_ms(self, val):
# MySQL < 5.6.4 removes microseconds from the datetimes which can cause
# problems when comparing the original value to that loaded from DB
return val - timedelta(microseconds=val.microsecond)
def test_refresh(self): def test_refresh(self):
a = Article.objects.create(pub_date=self._truncate_ms(datetime.now())) a = Article.objects.create(pub_date=datetime.now())
Article.objects.create(pub_date=self._truncate_ms(datetime.now())) Article.objects.create(pub_date=datetime.now())
Article.objects.filter(pk=a.pk).update(headline='new headline') Article.objects.filter(pk=a.pk).update(headline='new headline')
with self.assertNumQueries(1): with self.assertNumQueries(1):
a.refresh_from_db() a.refresh_from_db()
@ -722,7 +688,7 @@ class ModelRefreshTests(TestCase):
self.assertEqual(s2.selfref, s1) self.assertEqual(s2.selfref, s1)
def test_refresh_unsaved(self): def test_refresh_unsaved(self):
pub_date = self._truncate_ms(datetime.now()) pub_date = datetime.now()
a = Article.objects.create(pub_date=pub_date) a = Article.objects.create(pub_date=pub_date)
a2 = Article(id=a.pk) a2 = Article(id=a.pk)
with self.assertNumQueries(1): with self.assertNumQueries(1):
@ -742,6 +708,6 @@ class ModelRefreshTests(TestCase):
self.assertIsNone(s1.article) self.assertIsNone(s1.article)
def test_refresh_no_fields(self): def test_refresh_no_fields(self):
a = Article.objects.create(pub_date=self._truncate_ms(datetime.now())) a = Article.objects.create(pub_date=datetime.now())
with self.assertNumQueries(0): with self.assertNumQueries(0):
a.refresh_from_db(fields=[]) a.refresh_from_db(fields=[])

127
tests/db_functions/test_datetime.py
View File

@ -3,7 +3,6 @@ from datetime import datetime
import pytz import pytz
from django.conf import settings from django.conf import settings
from django.db import connection
from django.db.models import DateField, DateTimeField, IntegerField, TimeField from django.db.models import DateField, DateTimeField, IntegerField, TimeField
from django.db.models.functions import ( from django.db.models.functions import (
Extract, ExtractDay, ExtractHour, ExtractMinute, ExtractMonth, Extract, ExtractDay, ExtractHour, ExtractMinute, ExtractMonth,
@ -19,10 +18,6 @@ from django.utils import timezone
from .models import DTModel from .models import DTModel
def microsecond_support(value):
return value if connection.features.supports_microsecond_precision else value.replace(microsecond=0)
def truncate_to(value, kind, tzinfo=None): def truncate_to(value, kind, tzinfo=None):
# Convert to target timezone before truncation # Convert to target timezone before truncation
if tzinfo is not None: if tzinfo is not None:
@ -138,8 +133,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(str(qs.query).count('extract'), 0) self.assertEqual(str(qs.query).count('extract'), 0)
def test_extract_func(self): def test_extract_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -212,8 +207,8 @@ class DateFunctionTests(TestCase):
@skipUnlessDBFeature('has_native_duration_field') @skipUnlessDBFeature('has_native_duration_field')
def test_extract_duration(self): def test_extract_duration(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -241,8 +236,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(extracted=Extract('duration', 'second'))) list(DTModel.objects.annotate(extracted=Extract('duration', 'second')))
def test_extract_year_func(self): def test_extract_year_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -261,8 +256,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__year=ExtractYear('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__year=ExtractYear('start_datetime')).count(), 2)
def test_extract_month_func(self): def test_extract_month_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -281,8 +276,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__month=ExtractMonth('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__month=ExtractMonth('start_datetime')).count(), 2)
def test_extract_day_func(self): def test_extract_day_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -301,8 +296,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__day=ExtractDay('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__day=ExtractDay('start_datetime')).count(), 2)
def test_extract_week_func(self): def test_extract_week_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -322,8 +317,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__week=ExtractWeek('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__week=ExtractWeek('start_datetime')).count(), 2)
def test_extract_quarter_func(self): def test_extract_quarter_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 8, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 8, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -342,12 +337,12 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__quarter=ExtractQuarter('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__quarter=ExtractQuarter('start_datetime')).count(), 2)
def test_extract_quarter_func_boundaries(self): def test_extract_quarter_func_boundaries(self):
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
last_quarter_2014 = microsecond_support(datetime(2014, 12, 31, 13, 0)) last_quarter_2014 = datetime(2014, 12, 31, 13, 0)
first_quarter_2015 = microsecond_support(datetime(2015, 1, 1, 13, 0)) first_quarter_2015 = datetime(2015, 1, 1, 13, 0)
if settings.USE_TZ: if settings.USE_TZ:
last_quarter_2014 = timezone.make_aware(last_quarter_2014, is_dst=False) last_quarter_2014 = timezone.make_aware(last_quarter_2014, is_dst=False)
first_quarter_2015 = timezone.make_aware(first_quarter_2015, is_dst=False) first_quarter_2015 = timezone.make_aware(first_quarter_2015, is_dst=False)
@ -363,13 +358,13 @@ class DateFunctionTests(TestCase):
], lambda m: (m.start_datetime, m.extracted)) ], lambda m: (m.start_datetime, m.extracted))
def test_extract_week_func_boundaries(self): def test_extract_week_func_boundaries(self):
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
week_52_day_2014 = microsecond_support(datetime(2014, 12, 27, 13, 0)) # Sunday week_52_day_2014 = datetime(2014, 12, 27, 13, 0) # Sunday
week_1_day_2014_2015 = microsecond_support(datetime(2014, 12, 31, 13, 0)) # Wednesday week_1_day_2014_2015 = datetime(2014, 12, 31, 13, 0) # Wednesday
week_53_day_2015 = microsecond_support(datetime(2015, 12, 31, 13, 0)) # Thursday week_53_day_2015 = datetime(2015, 12, 31, 13, 0) # Thursday
if settings.USE_TZ: if settings.USE_TZ:
week_1_day_2014_2015 = timezone.make_aware(week_1_day_2014_2015, is_dst=False) week_1_day_2014_2015 = timezone.make_aware(week_1_day_2014_2015, is_dst=False)
week_52_day_2014 = timezone.make_aware(week_52_day_2014, is_dst=False) week_52_day_2014 = timezone.make_aware(week_52_day_2014, is_dst=False)
@ -389,8 +384,8 @@ class DateFunctionTests(TestCase):
], lambda m: (m.start_datetime, m.extracted)) ], lambda m: (m.start_datetime, m.extracted))
def test_extract_weekday_func(self): def test_extract_weekday_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -415,8 +410,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__week_day=ExtractWeekDay('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__week_day=ExtractWeekDay('start_datetime')).count(), 2)
def test_extract_hour_func(self): def test_extract_hour_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -435,8 +430,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__hour=ExtractHour('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__hour=ExtractHour('start_datetime')).count(), 2)
def test_extract_minute_func(self): def test_extract_minute_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -455,8 +450,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__minute=ExtractMinute('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__minute=ExtractMinute('start_datetime')).count(), 2)
def test_extract_second_func(self): def test_extract_second_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -475,8 +470,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__second=ExtractSecond('start_datetime')).count(), 2) self.assertEqual(DTModel.objects.filter(start_datetime__second=ExtractSecond('start_datetime')).count(), 2)
def test_trunc_func(self): def test_trunc_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -557,8 +552,8 @@ class DateFunctionTests(TestCase):
self.assertEqual(qs.count(), 2) self.assertEqual(qs.count(), 2)
def test_trunc_year_func(self): def test_trunc_year_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'year') end_datetime = truncate_to(datetime(2016, 6, 15, 14, 10, 50, 123), 'year')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -589,10 +584,10 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncYear('start_time', output_field=TimeField()))) list(DTModel.objects.annotate(truncated=TruncYear('start_time', output_field=TimeField())))
def test_trunc_quarter_func(self): def test_trunc_quarter_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 10, 15, 14, 10, 50, 123)), 'quarter') end_datetime = truncate_to(datetime(2016, 10, 15, 14, 10, 50, 123), 'quarter')
last_quarter_2015 = truncate_to(microsecond_support(datetime(2015, 12, 31, 14, 10, 50, 123)), 'quarter') last_quarter_2015 = truncate_to(datetime(2015, 12, 31, 14, 10, 50, 123), 'quarter')
first_quarter_2016 = truncate_to(microsecond_support(datetime(2016, 1, 1, 14, 10, 50, 123)), 'quarter') first_quarter_2016 = truncate_to(datetime(2016, 1, 1, 14, 10, 50, 123), 'quarter')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -630,8 +625,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncQuarter('start_time', output_field=TimeField()))) list(DTModel.objects.annotate(truncated=TruncQuarter('start_time', output_field=TimeField())))
def test_trunc_month_func(self): def test_trunc_month_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'month') end_datetime = truncate_to(datetime(2016, 6, 15, 14, 10, 50, 123), 'month')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -662,8 +657,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncMonth('start_time', output_field=TimeField()))) list(DTModel.objects.annotate(truncated=TruncMonth('start_time', output_field=TimeField())))
def test_trunc_date_func(self): def test_trunc_date_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -686,8 +681,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncDate('start_time', output_field=TimeField()))) list(DTModel.objects.annotate(truncated=TruncDate('start_time', output_field=TimeField())))
def test_trunc_time_func(self): def test_trunc_time_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -710,8 +705,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncTime('start_date', output_field=DateField()))) list(DTModel.objects.annotate(truncated=TruncTime('start_date', output_field=DateField())))
def test_trunc_day_func(self): def test_trunc_day_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'day') end_datetime = truncate_to(datetime(2016, 6, 15, 14, 10, 50, 123), 'day')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -734,8 +729,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncDay('start_time', output_field=TimeField()))) list(DTModel.objects.annotate(truncated=TruncDay('start_time', output_field=TimeField())))
def test_trunc_hour_func(self): def test_trunc_hour_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'hour') end_datetime = truncate_to(datetime(2016, 6, 15, 14, 10, 50, 123), 'hour')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -766,8 +761,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncHour('start_date', output_field=DateField()))) list(DTModel.objects.annotate(truncated=TruncHour('start_date', output_field=DateField())))
def test_trunc_minute_func(self): def test_trunc_minute_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'minute') end_datetime = truncate_to(datetime(2016, 6, 15, 14, 10, 50, 123), 'minute')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -798,8 +793,8 @@ class DateFunctionTests(TestCase):
list(DTModel.objects.annotate(truncated=TruncMinute('start_date', output_field=DateField()))) list(DTModel.objects.annotate(truncated=TruncMinute('start_date', output_field=DateField())))
def test_trunc_second_func(self): def test_trunc_second_func(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'second') end_datetime = truncate_to(datetime(2016, 6, 15, 14, 10, 50, 123), 'second')
if settings.USE_TZ: if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
@ -821,9 +816,7 @@ class DateFunctionTests(TestCase):
], ],
lambda m: (m.start_datetime, m.extracted) lambda m: (m.start_datetime, m.extracted)
) )
self.assertEqual(DTModel.objects.filter(start_datetime=TruncSecond('start_datetime')).count(), 1)
result = 1 if connection.features.supports_microsecond_precision else 2
self.assertEqual(DTModel.objects.filter(start_datetime=TruncSecond('start_datetime')).count(), result)
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"): with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
list(DTModel.objects.annotate(truncated=TruncSecond('start_date'))) list(DTModel.objects.annotate(truncated=TruncSecond('start_date')))
@ -836,8 +829,8 @@ class DateFunctionTests(TestCase):
class DateFunctionWithTimeZoneTests(DateFunctionTests): class DateFunctionWithTimeZoneTests(DateFunctionTests):
def test_extract_func_with_timezone(self): def test_extract_func_with_timezone(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 23, 30, 1, 321)) start_datetime = datetime(2015, 6, 15, 23, 30, 1, 321)
end_datetime = microsecond_support(datetime(2015, 6, 16, 13, 11, 27, 123)) end_datetime = datetime(2015, 6, 16, 13, 11, 27, 123)
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
self.create_model(start_datetime, end_datetime) self.create_model(start_datetime, end_datetime)
@ -877,8 +870,8 @@ class DateFunctionWithTimeZoneTests(DateFunctionTests):
self.assertEqual(melb_model.hour_melb, 9) self.assertEqual(melb_model.hour_melb, 9)
def test_extract_func_explicit_timezone_priority(self): def test_extract_func_explicit_timezone_priority(self):
start_datetime = microsecond_support(datetime(2015, 6, 15, 23, 30, 1, 321)) start_datetime = datetime(2015, 6, 15, 23, 30, 1, 321)
end_datetime = microsecond_support(datetime(2015, 6, 16, 13, 11, 27, 123)) end_datetime = datetime(2015, 6, 16, 13, 11, 27, 123)
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
self.create_model(start_datetime, end_datetime) self.create_model(start_datetime, end_datetime)
@ -893,8 +886,8 @@ class DateFunctionWithTimeZoneTests(DateFunctionTests):
self.assertEqual(model.day_utc, 15) self.assertEqual(model.day_utc, 15)
def test_trunc_timezone_applied_before_truncation(self): def test_trunc_timezone_applied_before_truncation(self):
start_datetime = microsecond_support(datetime(2016, 1, 1, 1, 30, 50, 321)) start_datetime = datetime(2016, 1, 1, 1, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
self.create_model(start_datetime, end_datetime) self.create_model(start_datetime, end_datetime)
@ -919,8 +912,8 @@ class DateFunctionWithTimeZoneTests(DateFunctionTests):
If the truncated datetime transitions to a different offset (daylight If the truncated datetime transitions to a different offset (daylight
saving) then the returned value will have that new timezone/offset. saving) then the returned value will have that new timezone/offset.
""" """
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321)) start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)) end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
start_datetime = timezone.make_aware(start_datetime, is_dst=False) start_datetime = timezone.make_aware(start_datetime, is_dst=False)
end_datetime = timezone.make_aware(end_datetime, is_dst=False) end_datetime = timezone.make_aware(end_datetime, is_dst=False)
self.create_model(start_datetime, end_datetime) self.create_model(start_datetime, end_datetime)

12
tests/db_functions/tests.py
View File

@ -20,10 +20,6 @@ lorem_ipsum = """
tempor incididunt ut labore et dolore magna aliqua.""" tempor incididunt ut labore et dolore magna aliqua."""
def truncate_microseconds(value):
return value if connection.features.supports_microsecond_precision else value.replace(microsecond=0)
class FunctionTests(TestCase): class FunctionTests(TestCase):
def test_coalesce(self): def test_coalesce(self):
@ -121,7 +117,7 @@ class FunctionTests(TestCase):
articles = Article.objects.annotate( articles = Article.objects.annotate(
last_updated=Greatest('written', 'published'), last_updated=Greatest('written', 'published'),
) )
self.assertEqual(articles.first().last_updated, truncate_microseconds(now)) self.assertEqual(articles.first().last_updated, now)
@skipUnlessDBFeature('greatest_least_ignores_nulls') @skipUnlessDBFeature('greatest_least_ignores_nulls')
def test_greatest_ignores_null(self): def test_greatest_ignores_null(self):
@ -174,7 +170,7 @@ class FunctionTests(TestCase):
Coalesce('published', past_sql), Coalesce('published', past_sql),
), ),
) )
self.assertEqual(articles.first().last_updated, truncate_microseconds(now)) self.assertEqual(articles.first().last_updated, now)
def test_greatest_all_null(self): def test_greatest_all_null(self):
Article.objects.create(title="Testing with Django", written=timezone.now()) Article.objects.create(title="Testing with Django", written=timezone.now())
@ -225,7 +221,7 @@ class FunctionTests(TestCase):
articles = Article.objects.annotate( articles = Article.objects.annotate(
first_updated=Least('written', 'published'), first_updated=Least('written', 'published'),
) )
self.assertEqual(articles.first().first_updated, truncate_microseconds(before)) self.assertEqual(articles.first().first_updated, before)
@skipUnlessDBFeature('greatest_least_ignores_nulls') @skipUnlessDBFeature('greatest_least_ignores_nulls')
def test_least_ignores_null(self): def test_least_ignores_null(self):
@ -278,7 +274,7 @@ class FunctionTests(TestCase):
Coalesce('published', future_sql), Coalesce('published', future_sql),
), ),
) )
self.assertEqual(articles.first().last_updated, truncate_microseconds(now)) self.assertEqual(articles.first().last_updated, now)
def test_least_all_null(self): def test_least_all_null(self):
Article.objects.create(title="Testing with Django", written=timezone.now()) Article.objects.create(title="Testing with Django", written=timezone.now())

50
tests/expressions/tests.py
View File

@ -1028,19 +1028,16 @@ class FTimeDeltaTests(TestCase):
# e1: started one day after assigned, tiny duration, data # e1: started one day after assigned, tiny duration, data
# set so that end time has no fractional seconds, which # set so that end time has no fractional seconds, which
# tests an edge case on sqlite. This Experiment is only # tests an edge case on sqlite.
# included in the test data when the DB supports microsecond delay = datetime.timedelta(1)
# precision. end = stime + delay + delta1
if connection.features.supports_microsecond_precision: e1 = Experiment.objects.create(
delay = datetime.timedelta(1) name='e1', assigned=sday, start=stime + delay, end=end,
end = stime + delay + delta1 completed=end.date(), estimated_time=delta1,
e1 = Experiment.objects.create( )
name='e1', assigned=sday, start=stime + delay, end=end, cls.deltas.append(delta1)
completed=end.date(), estimated_time=delta1, cls.delays.append(e1.start - datetime.datetime.combine(e1.assigned, midnight))
) cls.days_long.append(e1.completed - e1.assigned)
cls.deltas.append(delta1)
cls.delays.append(e1.start - datetime.datetime.combine(e1.assigned, midnight))
cls.days_long.append(e1.completed - e1.assigned)
# e2: started three days after assigned, small duration # e2: started three days after assigned, small duration
end = stime + delta2 end = stime + delta2
@ -1144,8 +1141,6 @@ class FTimeDeltaTests(TestCase):
def test_mixed_comparisons1(self): def test_mixed_comparisons1(self):
for i in range(len(self.delays)): for i in range(len(self.delays)):
delay = self.delays[i] delay = self.delays[i]
if not connection.features.supports_microsecond_precision:
delay = datetime.timedelta(delay.days, delay.seconds)
test_set = [e.name for e in Experiment.objects.filter(assigned__gt=F('start') - delay)] test_set = [e.name for e in Experiment.objects.filter(assigned__gt=F('start') - delay)]
self.assertEqual(test_set, self.expnames[:i]) self.assertEqual(test_set, self.expnames[:i])
@ -1213,27 +1208,21 @@ class FTimeDeltaTests(TestCase):
self.assertEqual(at_least_120_days, {'e5'}) self.assertEqual(at_least_120_days, {'e5'})
less_than_5_days = {e.name for e in queryset.filter(completion_duration__lt=datetime.timedelta(days=5))} less_than_5_days = {e.name for e in queryset.filter(completion_duration__lt=datetime.timedelta(days=5))}
expected = {'e0', 'e2'} self.assertEqual(less_than_5_days, {'e0', 'e1', 'e2'})
if connection.features.supports_microsecond_precision:
expected.add('e1')
self.assertEqual(less_than_5_days, expected)
@skipUnlessDBFeature('supports_temporal_subtraction') @skipUnlessDBFeature('supports_temporal_subtraction')
def test_time_subtraction(self): def test_time_subtraction(self):
if connection.features.supports_microsecond_precision: Time.objects.create(time=datetime.time(12, 30, 15, 2345))
time = datetime.time(12, 30, 15, 2345)
timedelta = datetime.timedelta(hours=1, minutes=15, seconds=15, microseconds=2345)
else:
time = datetime.time(12, 30, 15)
timedelta = datetime.timedelta(hours=1, minutes=15, seconds=15)
Time.objects.create(time=time)
queryset = Time.objects.annotate( queryset = Time.objects.annotate(
difference=ExpressionWrapper( difference=ExpressionWrapper(
F('time') - Value(datetime.time(11, 15, 0), output_field=models.TimeField()), F('time') - Value(datetime.time(11, 15, 0), output_field=models.TimeField()),
output_field=models.DurationField(), output_field=models.DurationField(),
) )
) )
self.assertEqual(queryset.get().difference, timedelta) self.assertEqual(
queryset.get().difference,
datetime.timedelta(hours=1, minutes=15, seconds=15, microseconds=2345)
)
@skipUnlessDBFeature('supports_temporal_subtraction') @skipUnlessDBFeature('supports_temporal_subtraction')
def test_datetime_subtraction(self): def test_datetime_subtraction(self):
@ -1274,10 +1263,9 @@ class FTimeDeltaTests(TestCase):
new_start=F('start_sub_hours') + datetime.timedelta(days=-2), new_start=F('start_sub_hours') + datetime.timedelta(days=-2),
) )
expected_start = datetime.datetime(2010, 6, 23, 9, 45, 0) expected_start = datetime.datetime(2010, 6, 23, 9, 45, 0)
if connection.features.supports_microsecond_precision: # subtract 30 microseconds
# subtract 30 microseconds experiments = experiments.annotate(new_start=F('new_start') + datetime.timedelta(microseconds=-30))
experiments = experiments.annotate(new_start=F('new_start') + datetime.timedelta(microseconds=-30)) expected_start += datetime.timedelta(microseconds=+746970)
expected_start += datetime.timedelta(microseconds=+746970)
experiments.update(start=F('new_start')) experiments.update(start=F('new_start'))
e0 = Experiment.objects.get(name='e0') e0 = Experiment.objects.get(name='e0')
self.assertEqual(e0.start, expected_start) self.assertEqual(e0.start, expected_start)

3
tests/m2m_through/tests.py
View File

@ -1,7 +1,7 @@
from datetime import datetime from datetime import datetime
from operator import attrgetter from operator import attrgetter
from django.test import TestCase, skipUnlessDBFeature from django.test import TestCase
from .models import ( from .models import (
CustomMembership, Employee, Event, Friendship, Group, Ingredient, CustomMembership, Employee, Event, Friendship, Group, Ingredient,
@ -196,7 +196,6 @@ class M2mThroughTests(TestCase):
attrgetter("name") attrgetter("name")
) )
@skipUnlessDBFeature('supports_microsecond_precision')
def test_order_by_relational_field_through_model(self): def test_order_by_relational_field_through_model(self):
CustomMembership.objects.create(person=self.jim, group=self.rock) CustomMembership.objects.create(person=self.jim, group=self.rock)
CustomMembership.objects.create(person=self.bob, group=self.rock) CustomMembership.objects.create(person=self.bob, group=self.rock)

1
tests/model_fields/test_datetimefield.py
View File

@ -24,7 +24,6 @@ class DateTimeFieldTests(TestCase):
self.assertEqual(f.to_python('01:02:03.000004'), datetime.time(1, 2, 3, 4)) self.assertEqual(f.to_python('01:02:03.000004'), datetime.time(1, 2, 3, 4))
self.assertEqual(f.to_python('01:02:03.999999'), datetime.time(1, 2, 3, 999999)) self.assertEqual(f.to_python('01:02:03.999999'), datetime.time(1, 2, 3, 999999))
@skipUnlessDBFeature('supports_microsecond_precision')
def test_datetimes_save_completely(self): def test_datetimes_save_completely(self):
dat = datetime.date(2014, 3, 12) dat = datetime.date(2014, 3, 12)
datetim = datetime.datetime(2014, 3, 12, 21, 22, 23, 240000) datetim = datetime.datetime(2014, 3, 12, 21, 22, 23, 240000)

48
tests/timezones/tests.py
View File

@ -56,21 +56,12 @@ class LegacyDatabaseTests(TestCase):
event = Event.objects.get() event = Event.objects.get()
self.assertEqual(event.dt, dt) self.assertEqual(event.dt, dt)
@skipUnlessDBFeature('supports_microsecond_precision')
def test_naive_datetime_with_microsecond(self): def test_naive_datetime_with_microsecond(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060) dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060)
Event.objects.create(dt=dt) Event.objects.create(dt=dt)
event = Event.objects.get() event = Event.objects.get()
self.assertEqual(event.dt, dt) self.assertEqual(event.dt, dt)
@skipIfDBFeature('supports_microsecond_precision')
def test_naive_datetime_with_microsecond_unsupported(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060)
Event.objects.create(dt=dt)
event = Event.objects.get()
# microseconds are lost during a round-trip in the database
self.assertEqual(event.dt, dt.replace(microsecond=0))
@skipUnlessDBFeature('supports_timezones') @skipUnlessDBFeature('supports_timezones')
def test_aware_datetime_in_local_timezone(self): def test_aware_datetime_in_local_timezone(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, tzinfo=EAT) dt = datetime.datetime(2011, 9, 1, 13, 20, 30, tzinfo=EAT)
@ -81,7 +72,6 @@ class LegacyDatabaseTests(TestCase):
self.assertEqual(event.dt.replace(tzinfo=EAT), dt) self.assertEqual(event.dt.replace(tzinfo=EAT), dt)
@skipUnlessDBFeature('supports_timezones') @skipUnlessDBFeature('supports_timezones')
@skipUnlessDBFeature('supports_microsecond_precision')
def test_aware_datetime_in_local_timezone_with_microsecond(self): def test_aware_datetime_in_local_timezone_with_microsecond(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060, tzinfo=EAT) dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060, tzinfo=EAT)
Event.objects.create(dt=dt) Event.objects.create(dt=dt)
@ -90,18 +80,6 @@ class LegacyDatabaseTests(TestCase):
# interpret the naive datetime in local time to get the correct value # interpret the naive datetime in local time to get the correct value
self.assertEqual(event.dt.replace(tzinfo=EAT), dt) self.assertEqual(event.dt.replace(tzinfo=EAT), dt)
# This combination actually never happens.
@skipUnlessDBFeature('supports_timezones')
@skipIfDBFeature('supports_microsecond_precision')
def test_aware_datetime_in_local_timezone_with_microsecond_unsupported(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060, tzinfo=EAT)
Event.objects.create(dt=dt)
event = Event.objects.get()
self.assertIsNone(event.dt.tzinfo)
# interpret the naive datetime in local time to get the correct value
# microseconds are lost during a round-trip in the database
self.assertEqual(event.dt.replace(tzinfo=EAT), dt.replace(microsecond=0))
@skipUnlessDBFeature('supports_timezones') @skipUnlessDBFeature('supports_timezones')
def test_aware_datetime_in_utc(self): def test_aware_datetime_in_utc(self):
dt = datetime.datetime(2011, 9, 1, 10, 20, 30, tzinfo=UTC) dt = datetime.datetime(2011, 9, 1, 10, 20, 30, tzinfo=UTC)
@ -274,7 +252,6 @@ class NewDatabaseTests(TestCase):
self.assertEqual(event.dt, datetime.datetime(2011, 9, 1, tzinfo=EAT)) self.assertEqual(event.dt, datetime.datetime(2011, 9, 1, tzinfo=EAT))
@requires_tz_support @requires_tz_support
@skipUnlessDBFeature('supports_microsecond_precision')
def test_naive_datetime_with_microsecond(self): def test_naive_datetime_with_microsecond(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060) dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060)
with warnings.catch_warnings(record=True) as recorded: with warnings.catch_warnings(record=True) as recorded:
@ -288,43 +265,18 @@ class NewDatabaseTests(TestCase):
# naive datetimes are interpreted in local time # naive datetimes are interpreted in local time
self.assertEqual(event.dt, dt.replace(tzinfo=EAT)) self.assertEqual(event.dt, dt.replace(tzinfo=EAT))
@requires_tz_support
@skipIfDBFeature('supports_microsecond_precision')
def test_naive_datetime_with_microsecond_unsupported(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060)
with warnings.catch_warnings(record=True) as recorded:
warnings.simplefilter('always')
Event.objects.create(dt=dt)
self.assertEqual(len(recorded), 1)
msg = str(recorded[0].message)
self.assertTrue(msg.startswith("DateTimeField Event.dt received "
"a naive datetime"))
event = Event.objects.get()
# microseconds are lost during a round-trip in the database
# naive datetimes are interpreted in local time
self.assertEqual(event.dt, dt.replace(microsecond=0, tzinfo=EAT))
def test_aware_datetime_in_local_timezone(self): def test_aware_datetime_in_local_timezone(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, tzinfo=EAT) dt = datetime.datetime(2011, 9, 1, 13, 20, 30, tzinfo=EAT)
Event.objects.create(dt=dt) Event.objects.create(dt=dt)
event = Event.objects.get() event = Event.objects.get()
self.assertEqual(event.dt, dt) self.assertEqual(event.dt, dt)
@skipUnlessDBFeature('supports_microsecond_precision')
def test_aware_datetime_in_local_timezone_with_microsecond(self): def test_aware_datetime_in_local_timezone_with_microsecond(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060, tzinfo=EAT) dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060, tzinfo=EAT)
Event.objects.create(dt=dt) Event.objects.create(dt=dt)
event = Event.objects.get() event = Event.objects.get()
self.assertEqual(event.dt, dt) self.assertEqual(event.dt, dt)
@skipIfDBFeature('supports_microsecond_precision')
def test_aware_datetime_in_local_timezone_with_microsecond_unsupported(self):
dt = datetime.datetime(2011, 9, 1, 13, 20, 30, 405060, tzinfo=EAT)
Event.objects.create(dt=dt)
event = Event.objects.get()
# microseconds are lost during a round-trip in the database
self.assertEqual(event.dt, dt.replace(microsecond=0))
def test_aware_datetime_in_utc(self): def test_aware_datetime_in_utc(self):
dt = datetime.datetime(2011, 9, 1, 10, 20, 30, tzinfo=UTC) dt = datetime.datetime(2011, 9, 1, 10, 20, 30, tzinfo=UTC)
Event.objects.create(dt=dt) Event.objects.create(dt=dt)