199 lines
7.7 KiB
Python
199 lines
7.7 KiB
Python
from __future__ import unicode_literals
|
|
|
|
from datetime import date
|
|
import traceback
|
|
import warnings
|
|
|
|
from django.db import IntegrityError, DatabaseError
|
|
from django.utils.encoding import DjangoUnicodeDecodeError
|
|
from django.test import TestCase, TransactionTestCase
|
|
|
|
from .models import DefaultPerson, Person, ManualPrimaryKeyTest, Profile, Tag, Thing
|
|
|
|
|
|
class GetOrCreateTests(TestCase):
|
|
|
|
def test_get_or_create(self):
|
|
p = Person.objects.create(
|
|
first_name='John', last_name='Lennon', birthday=date(1940, 10, 9)
|
|
)
|
|
|
|
p, created = Person.objects.get_or_create(
|
|
first_name="John", last_name="Lennon", defaults={
|
|
"birthday": date(1940, 10, 9)
|
|
}
|
|
)
|
|
self.assertFalse(created)
|
|
self.assertEqual(Person.objects.count(), 1)
|
|
|
|
p, created = Person.objects.get_or_create(
|
|
first_name='George', last_name='Harrison', defaults={
|
|
'birthday': date(1943, 2, 25)
|
|
}
|
|
)
|
|
self.assertTrue(created)
|
|
self.assertEqual(Person.objects.count(), 2)
|
|
|
|
# If we execute the exact same statement, it won't create a Person.
|
|
p, created = Person.objects.get_or_create(
|
|
first_name='George', last_name='Harrison', defaults={
|
|
'birthday': date(1943, 2, 25)
|
|
}
|
|
)
|
|
self.assertFalse(created)
|
|
self.assertEqual(Person.objects.count(), 2)
|
|
|
|
# If you don't specify a value or default value for all required
|
|
# fields, you will get an error.
|
|
self.assertRaises(IntegrityError,
|
|
Person.objects.get_or_create, first_name="Tom", last_name="Smith"
|
|
)
|
|
|
|
# If you specify an existing primary key, but different other fields,
|
|
# then you will get an error and data will not be updated.
|
|
ManualPrimaryKeyTest.objects.create(id=1, data="Original")
|
|
self.assertRaises(IntegrityError,
|
|
ManualPrimaryKeyTest.objects.get_or_create, id=1, data="Different"
|
|
)
|
|
self.assertEqual(ManualPrimaryKeyTest.objects.get(id=1).data, "Original")
|
|
|
|
# get_or_create should raise IntegrityErrors with the full traceback.
|
|
# This is tested by checking that a known method call is in the traceback.
|
|
# We cannot use assertRaises/assertRaises here because we need to inspect
|
|
# the actual traceback. Refs #16340.
|
|
try:
|
|
ManualPrimaryKeyTest.objects.get_or_create(id=1, data="Different")
|
|
except IntegrityError:
|
|
formatted_traceback = traceback.format_exc()
|
|
self.assertIn(str('obj.save'), formatted_traceback)
|
|
|
|
def test_savepoint_rollback(self):
|
|
# Regression test for #20463: the database connection should still be
|
|
# usable after a DataError or ProgrammingError in .get_or_create().
|
|
try:
|
|
# Hide warnings when broken data is saved with a warning (MySQL).
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter('ignore')
|
|
Person.objects.get_or_create(
|
|
birthday=date(1970, 1, 1),
|
|
defaults={'first_name': b"\xff", 'last_name': b"\xff"})
|
|
except (DatabaseError, DjangoUnicodeDecodeError):
|
|
Person.objects.create(
|
|
first_name="Bob", last_name="Ross", birthday=date(1950, 1, 1))
|
|
else:
|
|
self.skipTest("This backend accepts broken utf-8.")
|
|
|
|
def test_get_or_create_empty(self):
|
|
# Regression test for #16137: get_or_create does not require kwargs.
|
|
try:
|
|
DefaultPerson.objects.get_or_create()
|
|
except AssertionError:
|
|
self.fail("If all the attributes on a model have defaults, we "
|
|
"shouldn't need to pass any arguments.")
|
|
|
|
|
|
class GetOrCreateTransactionTests(TransactionTestCase):
|
|
|
|
available_apps = ['get_or_create']
|
|
|
|
def test_get_or_create_integrityerror(self):
|
|
# Regression test for #15117. Requires a TransactionTestCase on
|
|
# databases that delay integrity checks until the end of transactions,
|
|
# otherwise the exception is never raised.
|
|
try:
|
|
Profile.objects.get_or_create(person=Person(id=1))
|
|
except IntegrityError:
|
|
pass
|
|
else:
|
|
self.skipTest("This backend does not support integrity checks.")
|
|
|
|
|
|
class GetOrCreateThroughManyToMany(TestCase):
|
|
|
|
def test_get_get_or_create(self):
|
|
tag = Tag.objects.create(text='foo')
|
|
a_thing = Thing.objects.create(name='a')
|
|
a_thing.tags.add(tag)
|
|
obj, created = a_thing.tags.get_or_create(text='foo')
|
|
|
|
self.assertFalse(created)
|
|
self.assertEqual(obj.pk, tag.pk)
|
|
|
|
def test_create_get_or_create(self):
|
|
a_thing = Thing.objects.create(name='a')
|
|
obj, created = a_thing.tags.get_or_create(text='foo')
|
|
|
|
self.assertTrue(created)
|
|
self.assertEqual(obj.text, 'foo')
|
|
self.assertIn(obj, a_thing.tags.all())
|
|
|
|
def test_something(self):
|
|
Tag.objects.create(text='foo')
|
|
a_thing = Thing.objects.create(name='a')
|
|
self.assertRaises(IntegrityError, a_thing.tags.get_or_create, text='foo')
|
|
|
|
|
|
class UpdateOrCreateTests(TestCase):
|
|
|
|
def test_update(self):
|
|
Person.objects.create(
|
|
first_name='John', last_name='Lennon', birthday=date(1940, 10, 9)
|
|
)
|
|
p, created = Person.objects.update_or_create(
|
|
first_name='John', last_name='Lennon', defaults={
|
|
'birthday': date(1940, 10, 10)
|
|
}
|
|
)
|
|
self.assertFalse(created)
|
|
self.assertEqual(p.first_name, 'John')
|
|
self.assertEqual(p.last_name, 'Lennon')
|
|
self.assertEqual(p.birthday, date(1940, 10, 10))
|
|
|
|
def test_create(self):
|
|
p, created = Person.objects.update_or_create(
|
|
first_name='John', last_name='Lennon', defaults={
|
|
'birthday': date(1940, 10, 10)
|
|
}
|
|
)
|
|
self.assertTrue(created)
|
|
self.assertEqual(p.first_name, 'John')
|
|
self.assertEqual(p.last_name, 'Lennon')
|
|
self.assertEqual(p.birthday, date(1940, 10, 10))
|
|
|
|
def test_create_twice(self):
|
|
params = {
|
|
'first_name': 'John',
|
|
'last_name': 'Lennon',
|
|
'birthday': date(1940, 10, 10),
|
|
}
|
|
Person.objects.update_or_create(**params)
|
|
# If we execute the exact same statement, it won't create a Person.
|
|
p, created = Person.objects.update_or_create(**params)
|
|
self.assertFalse(created)
|
|
|
|
def test_integrity(self):
|
|
# If you don't specify a value or default value for all required
|
|
# fields, you will get an error.
|
|
self.assertRaises(IntegrityError,
|
|
Person.objects.update_or_create, first_name="Tom", last_name="Smith")
|
|
|
|
def test_manual_primary_key_test(self):
|
|
# If you specify an existing primary key, but different other fields,
|
|
# then you will get an error and data will not be updated.
|
|
ManualPrimaryKeyTest.objects.create(id=1, data="Original")
|
|
self.assertRaises(IntegrityError,
|
|
ManualPrimaryKeyTest.objects.update_or_create, id=1, data="Different"
|
|
)
|
|
self.assertEqual(ManualPrimaryKeyTest.objects.get(id=1).data, "Original")
|
|
|
|
def test_error_contains_full_traceback(self):
|
|
# update_or_create should raise IntegrityErrors with the full traceback.
|
|
# This is tested by checking that a known method call is in the traceback.
|
|
# We cannot use assertRaises/assertRaises here because we need to inspect
|
|
# the actual traceback. Refs #16340.
|
|
try:
|
|
ManualPrimaryKeyTest.objects.update_or_create(id=1, data="Different")
|
|
except IntegrityError:
|
|
formatted_traceback = traceback.format_exc()
|
|
self.assertIn('obj.save', formatted_traceback)
|