django/tests/regressiontests/multiple_database/tests.py

706 lines
33 KiB
Python

import datetime
import pickle
from django.conf import settings
from django.contrib.auth.models import User
from django.db import connections
from django.test import TestCase
from models import Book, Person, Review, UserProfile
try:
# we only have these models if the user is using multi-db, it's safe the
# run the tests without them though.
from models import Article, article_using
except ImportError:
pass
class QueryTestCase(TestCase):
multi_db = True
def test_default_creation(self):
"Objects created on the default database don't leak onto other databases"
# Create a book on the default database using create()
Book.objects.create(title="Pro Django",
published=datetime.date(2008, 12, 16))
# Create a book on the default database using a save
dive = Book()
dive.title="Dive into Python"
dive.published = datetime.date(2009, 5, 4)
dive.save()
# Check that book exists on the default database, but not on other database
try:
Book.objects.get(title="Pro Django")
Book.objects.using('default').get(title="Pro Django")
except Book.DoesNotExist:
self.fail('"Dive Into Python" should exist on default database')
self.assertRaises(Book.DoesNotExist,
Book.objects.using('other').get,
title="Pro Django"
)
try:
Book.objects.get(title="Dive into Python")
Book.objects.using('default').get(title="Dive into Python")
except Book.DoesNotExist:
self.fail('"Dive into Python" should exist on default database')
self.assertRaises(Book.DoesNotExist,
Book.objects.using('other').get,
title="Dive into Python"
)
def test_other_creation(self):
"Objects created on another database don't leak onto the default database"
# Create a book on the second database
Book.objects.using('other').create(title="Pro Django",
published=datetime.date(2008, 12, 16))
# Create a book on the default database using a save
dive = Book()
dive.title="Dive into Python"
dive.published = datetime.date(2009, 5, 4)
dive.save(using='other')
# Check that book exists on the default database, but not on other database
try:
Book.objects.using('other').get(title="Pro Django")
except Book.DoesNotExist:
self.fail('"Dive Into Python" should exist on other database')
self.assertRaises(Book.DoesNotExist,
Book.objects.get,
title="Pro Django"
)
self.assertRaises(Book.DoesNotExist,
Book.objects.using('default').get,
title="Pro Django"
)
try:
Book.objects.using('other').get(title="Dive into Python")
except Book.DoesNotExist:
self.fail('"Dive into Python" should exist on other database')
self.assertRaises(Book.DoesNotExist,
Book.objects.get,
title="Dive into Python"
)
self.assertRaises(Book.DoesNotExist,
Book.objects.using('default').get,
title="Dive into Python"
)
def test_basic_queries(self):
"Queries are constrained to a single database"
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
dive = Book.objects.using('other').get(published=datetime.date(2009, 5, 4))
self.assertEqual(dive.title, "Dive into Python")
self.assertRaises(Book.DoesNotExist, Book.objects.using('default').get, published=datetime.date(2009, 5, 4))
dive = Book.objects.using('other').get(title__icontains="dive")
self.assertEqual(dive.title, "Dive into Python")
self.assertRaises(Book.DoesNotExist, Book.objects.using('default').get, title__icontains="dive")
dive = Book.objects.using('other').get(title__iexact="dive INTO python")
self.assertEqual(dive.title, "Dive into Python")
self.assertRaises(Book.DoesNotExist, Book.objects.using('default').get, title__iexact="dive INTO python")
dive = Book.objects.using('other').get(published__year=2009)
self.assertEqual(dive.title, "Dive into Python")
self.assertEqual(dive.published, datetime.date(2009, 5, 4))
self.assertRaises(Book.DoesNotExist, Book.objects.using('default').get, published__year=2009)
years = Book.objects.using('other').dates('published', 'year')
self.assertEqual([o.year for o in years], [2009])
years = Book.objects.using('default').dates('published', 'year')
self.assertEqual([o.year for o in years], [])
months = Book.objects.using('other').dates('published', 'month')
self.assertEqual([o.month for o in months], [5])
months = Book.objects.using('default').dates('published', 'month')
self.assertEqual([o.month for o in months], [])
def test_m2m_separation(self):
"M2M fields are constrained to a single database"
# Create a book and author on the default database
pro = Book.objects.create(title="Pro Django",
published=datetime.date(2008, 12, 16))
marty = Person.objects.create(name="Marty Alchin")
# Create a book and author on the other database
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
mark = Person.objects.using('other').create(name="Mark Pilgrim")
# Save the author relations
pro.authors = [marty]
dive.authors = [mark]
# Inspect the m2m tables directly.
# There should be 1 entry in each database
self.assertEquals(Book.authors.through.objects.using('default').count(), 1)
self.assertEquals(Book.authors.through.objects.using('other').count(), 1)
# Check that queries work across m2m joins
self.assertEquals(list(Book.objects.using('default').filter(authors__name='Marty Alchin').values_list('title', flat=True)),
[u'Pro Django'])
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Marty Alchin').values_list('title', flat=True)),
[])
self.assertEquals(list(Book.objects.using('default').filter(authors__name='Mark Pilgrim').values_list('title', flat=True)),
[])
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Mark Pilgrim').values_list('title', flat=True)),
[u'Dive into Python'])
# Reget the objects to clear caches
dive = Book.objects.using('other').get(title="Dive into Python")
mark = Person.objects.using('other').get(name="Mark Pilgrim")
# Retrive related object by descriptor. Related objects should be database-baound
self.assertEquals(list(dive.authors.all().values_list('name', flat=True)),
[u'Mark Pilgrim'])
self.assertEquals(list(mark.book_set.all().values_list('title', flat=True)),
[u'Dive into Python'])
def test_m2m_forward_operations(self):
"M2M forward manipulations are all constrained to a single DB"
# Create a book and author on the other database
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
mark = Person.objects.using('other').create(name="Mark Pilgrim")
# Save the author relations
dive.authors = [mark]
# Add a second author
john = Person.objects.using('other').create(name="John Smith")
self.assertEquals(list(Book.objects.using('other').filter(authors__name='John Smith').values_list('title', flat=True)),
[])
dive.authors.add(john)
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Mark Pilgrim').values_list('title', flat=True)),
[u'Dive into Python'])
self.assertEquals(list(Book.objects.using('other').filter(authors__name='John Smith').values_list('title', flat=True)),
[u'Dive into Python'])
# Remove the second author
dive.authors.remove(john)
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Mark Pilgrim').values_list('title', flat=True)),
[u'Dive into Python'])
self.assertEquals(list(Book.objects.using('other').filter(authors__name='John Smith').values_list('title', flat=True)),
[])
# Clear all authors
dive.authors.clear()
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Mark Pilgrim').values_list('title', flat=True)),
[])
self.assertEquals(list(Book.objects.using('other').filter(authors__name='John Smith').values_list('title', flat=True)),
[])
# Create an author through the m2m interface
dive.authors.create(name='Jane Brown')
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Mark Pilgrim').values_list('title', flat=True)),
[])
self.assertEquals(list(Book.objects.using('other').filter(authors__name='Jane Brown').values_list('title', flat=True)),
[u'Dive into Python'])
def test_m2m_reverse_operations(self):
"M2M reverse manipulations are all constrained to a single DB"
# Create a book and author on the other database
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
mark = Person.objects.using('other').create(name="Mark Pilgrim")
# Save the author relations
dive.authors = [mark]
# Create a second book on the other database
grease = Book.objects.using('other').create(title="Greasemonkey Hacks",
published=datetime.date(2005, 11, 1))
# Add a books to the m2m
mark.book_set.add(grease)
self.assertEquals(list(Person.objects.using('other').filter(book__title='Dive into Python').values_list('name', flat=True)),
[u'Mark Pilgrim'])
self.assertEquals(list(Person.objects.using('other').filter(book__title='Greasemonkey Hacks').values_list('name', flat=True)),
[u'Mark Pilgrim'])
# Remove a book from the m2m
mark.book_set.remove(grease)
self.assertEquals(list(Person.objects.using('other').filter(book__title='Dive into Python').values_list('name', flat=True)),
[u'Mark Pilgrim'])
self.assertEquals(list(Person.objects.using('other').filter(book__title='Greasemonkey Hacks').values_list('name', flat=True)),
[])
# Clear the books associated with mark
mark.book_set.clear()
self.assertEquals(list(Person.objects.using('other').filter(book__title='Dive into Python').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('other').filter(book__title='Greasemonkey Hacks').values_list('name', flat=True)),
[])
# Create a book through the m2m interface
mark.book_set.create(title="Dive into HTML5", published=datetime.date(2020, 1, 1))
self.assertEquals(list(Person.objects.using('other').filter(book__title='Dive into Python').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('other').filter(book__title='Dive into HTML5').values_list('name', flat=True)),
[u'Mark Pilgrim'])
# def test_m2m_cross_database_protection(self):
# "Operations that involve sharing M2M objects across databases raise an error"
# # Create a book and author on the default database
# pro = Book.objects.create(title="Pro Django",
# published=datetime.date(2008, 12, 16))
# marty = Person.objects.create(name="Marty Alchin")
# # Create a book and author on the other database
# dive = Book.objects.using('other').create(title="Dive into Python",
# published=datetime.date(2009, 5, 4))
# mark = Person.objects.using('other').create(name="Mark Pilgrim")
# # Set a foreign key set with an object from a different database
# try:
# marty.book_set = [pro, dive]
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # Add to an m2m with an object from a different database
# try:
# marty.book_set.add(dive)
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # Set a m2m with an object from a different database
# try:
# marty.book_set = [pro, dive]
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # Add to a reverse m2m with an object from a different database
# try:
# dive.authors.add(marty)
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # Set a reverse m2m with an object from a different database
# try:
# dive.authors = [mark, marty]
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
def test_foreign_key_separation(self):
"FK fields are constrained to a single database"
# Create a book and author on the default database
pro = Book.objects.create(title="Pro Django",
published=datetime.date(2008, 12, 16))
marty = Person.objects.create(name="Marty Alchin")
george = Person.objects.create(name="George Vilches")
# Create a book and author on the other database
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
mark = Person.objects.using('other').create(name="Mark Pilgrim")
chris = Person.objects.using('other').create(name="Chris Mills")
# Save the author's favourite books
pro.editor = george
pro.save()
dive.editor = chris
dive.save()
pro = Book.objects.using('default').get(title="Pro Django")
self.assertEquals(pro.editor.name, "George Vilches")
dive = Book.objects.using('other').get(title="Dive into Python")
self.assertEquals(dive.editor.name, "Chris Mills")
# Check that queries work across foreign key joins
self.assertEquals(list(Person.objects.using('default').filter(edited__title='Pro Django').values_list('name', flat=True)),
[u'George Vilches'])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Pro Django').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('default').filter(edited__title='Dive into Python').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into Python').values_list('name', flat=True)),
[u'Chris Mills'])
# Reget the objects to clear caches
chris = Person.objects.using('other').get(name="Chris Mills")
dive = Book.objects.using('other').get(title="Dive into Python")
# Retrive related object by descriptor. Related objects should be database-baound
self.assertEquals(list(chris.edited.values_list('title', flat=True)),
[u'Dive into Python'])
def test_foreign_key_reverse_operations(self):
"FK reverse manipulations are all constrained to a single DB"
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
mark = Person.objects.using('other').create(name="Mark Pilgrim")
chris = Person.objects.using('other').create(name="Chris Mills")
# Save the author relations
dive.editor = chris
dive.save()
# Add a second book edited by chris
html5 = Book.objects.using('other').create(title="Dive into HTML5", published=datetime.date(2010, 3, 15))
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into HTML5').values_list('name', flat=True)),
[])
chris.edited.add(html5)
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into HTML5').values_list('name', flat=True)),
[u'Chris Mills'])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into Python').values_list('name', flat=True)),
[u'Chris Mills'])
# Remove the second editor
chris.edited.remove(html5)
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into HTML5').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into Python').values_list('name', flat=True)),
[u'Chris Mills'])
# Clear all edited books
chris.edited.clear()
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into HTML5').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into Python').values_list('name', flat=True)),
[])
# Create an author through the m2m interface
chris.edited.create(title='Dive into Water', published=datetime.date(2010, 3, 15))
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into HTML5').values_list('name', flat=True)),
[])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into Water').values_list('name', flat=True)),
[u'Chris Mills'])
self.assertEquals(list(Person.objects.using('other').filter(edited__title='Dive into Python').values_list('name', flat=True)),
[])
# def test_foreign_key_cross_database_protection(self):
# "Operations that involve sharing FK objects across databases raise an error"
# # Create a book and author on the default database
# pro = Book.objects.create(title="Pro Django",
# published=datetime.date(2008, 12, 16))
# marty = Person.objects.create(name="Marty Alchin")
# # Create a book and author on the other database
# dive = Book.objects.using('other').create(title="Dive into Python",
# published=datetime.date(2009, 5, 4))
# mark = Person.objects.using('other').create(name="Mark Pilgrim")
# # Set a foreign key with an object from a different database
# try:
# dive.editor = marty
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # Set a foreign key set with an object from a different database
# try:
# marty.edited = [pro, dive]
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # Add to a foreign key set with an object from a different database
# try:
# marty.edited.add(dive)
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # BUT! if you assign a FK object when the base object hasn't
# # been saved yet, you implicitly assign the database for the
# # base object.
# chris = Person(name="Chris Mills")
# html5 = Book(title="Dive into HTML5", published=datetime.date(2010, 3, 15))
# # initially, no db assigned
# self.assertEquals(chris._state.db, None)
# self.assertEquals(html5._state.db, None)
# # old object comes from 'other', so the new object is set to use 'other'...
# dive.editor = chris
# html5.editor = mark
# # self.assertEquals(chris._state.db, 'other')
# self.assertEquals(html5._state.db, 'other')
# # ... but it isn't saved yet
# self.assertEquals(list(Person.objects.using('other').values_list('name',flat=True)),
# [u'Mark Pilgrim'])
# self.assertEquals(list(Book.objects.using('other').values_list('title',flat=True)),
# [u'Dive into Python'])
# # When saved (no using required), new objects goes to 'other'
# chris.save()
# html5.save()
# self.assertEquals(list(Person.objects.using('default').values_list('name',flat=True)),
# [u'Marty Alchin'])
# self.assertEquals(list(Person.objects.using('other').values_list('name',flat=True)),
# [u'Chris Mills', u'Mark Pilgrim'])
# self.assertEquals(list(Book.objects.using('default').values_list('title',flat=True)),
# [u'Pro Django'])
# self.assertEquals(list(Book.objects.using('other').values_list('title',flat=True)),
# [u'Dive into HTML5', u'Dive into Python'])
# # This also works if you assign the FK in the constructor
# water = Book(title="Dive into Water", published=datetime.date(2001, 1, 1), editor=mark)
# self.assertEquals(water._state.db, 'other')
# # ... but it isn't saved yet
# self.assertEquals(list(Book.objects.using('default').values_list('title',flat=True)),
# [u'Pro Django'])
# self.assertEquals(list(Book.objects.using('other').values_list('title',flat=True)),
# [u'Dive into HTML5', u'Dive into Python'])
# # When saved, the new book goes to 'other'
# water.save()
# self.assertEquals(list(Book.objects.using('default').values_list('title',flat=True)),
# [u'Pro Django'])
# self.assertEquals(list(Book.objects.using('other').values_list('title',flat=True)),
# [u'Dive into HTML5', u'Dive into Python', u'Dive into Water'])
def test_generic_key_separation(self):
"Generic fields are constrained to a single database"
# Create a book and author on the default database
pro = Book.objects.create(title="Pro Django",
published=datetime.date(2008, 12, 16))
review1 = Review.objects.create(source="Python Monthly", content_object=pro)
# Create a book and author on the other database
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
review2 = Review.objects.using('other').create(source="Python Weekly", content_object=dive)
review1 = Review.objects.using('default').get(source="Python Monthly")
self.assertEquals(review1.content_object.title, "Pro Django")
review2 = Review.objects.using('other').get(source="Python Weekly")
self.assertEquals(review2.content_object.title, "Dive into Python")
# Reget the objects to clear caches
dive = Book.objects.using('other').get(title="Dive into Python")
# Retrive related object by descriptor. Related objects should be database-bound
self.assertEquals(list(dive.reviews.all().values_list('source', flat=True)),
[u'Python Weekly'])
def test_generic_key_reverse_operations(self):
"Generic reverse manipulations are all constrained to a single DB"
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
temp = Book.objects.using('other').create(title="Temp",
published=datetime.date(2009, 5, 4))
review1 = Review.objects.using('other').create(source="Python Weekly", content_object=dive)
review2 = Review.objects.using('other').create(source="Python Monthly", content_object=temp)
self.assertEquals(list(Review.objects.using('default').filter(object_id=dive.pk).values_list('source', flat=True)),
[])
self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source', flat=True)),
[u'Python Weekly'])
# Add a second review
dive.reviews.add(review2)
self.assertEquals(list(Review.objects.using('default').filter(object_id=dive.pk).values_list('source', flat=True)),
[])
self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source', flat=True)),
[u'Python Monthly', u'Python Weekly'])
# Remove the second author
dive.reviews.remove(review1)
self.assertEquals(list(Review.objects.using('default').filter(object_id=dive.pk).values_list('source', flat=True)),
[])
self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source', flat=True)),
[u'Python Monthly'])
# Clear all reviews
dive.reviews.clear()
self.assertEquals(list(Review.objects.using('default').filter(object_id=dive.pk).values_list('source', flat=True)),
[])
self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source', flat=True)),
[])
# Create an author through the generic interface
dive.reviews.create(source='Python Daily')
self.assertEquals(list(Review.objects.using('default').filter(object_id=dive.pk).values_list('source', flat=True)),
[])
self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source', flat=True)),
[u'Python Daily'])
# def test_generic_key_cross_database_protection(self):
## "Operations that involve sharing FK objects across databases raise an error"
## # Create a book and author on the default database
## pro = Book.objects.create(title="Pro Django",
## published=datetime.date(2008, 12, 16))
## review1 = Review.objects.create(source="Python Monthly", content_object=pro)
## # Create a book and author on the other database
## dive = Book.objects.using('other').create(title="Dive into Python",
## published=datetime.date(2009, 5, 4))
## review2 = Review.objects.using('other').create(source="Python Weekly", content_object=dive)
## # Set a foreign key with an object from a different database
## try:
## review1.content_object = dive
## self.fail("Shouldn't be able to assign across databases")
## except ValueError:
## pass
# # Add to a foreign key set with an object from a different database
# try:
# dive.reviews.add(review1)
# self.fail("Shouldn't be able to assign across databases")
# except ValueError:
# pass
# # BUT! if you assign a FK object when the base object hasn't
# # been saved yet, you implicitly assign the database for the
# # base object.
# review3 = Review(source="Python Daily")
# # initially, no db assigned
# self.assertEquals(review3._state.db, None)
# # Dive comes from 'other', so review3 is set to use 'other'...
# review3.content_object = dive
# self.assertEquals(review3._state.db, 'other')
# # ... but it isn't saved yet
# self.assertEquals(list(Review.objects.using('default').filter(object_id=pro.pk).values_list('source', flat=True)),
# [u'Python Monthly'])
# self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source',flat=True)),
# [u'Python Weekly'])
# # When saved, John goes to 'other'
# review3.save()
# self.assertEquals(list(Review.objects.using('default').filter(object_id=pro.pk).values_list('source', flat=True)),
# [u'Python Monthly'])
# self.assertEquals(list(Review.objects.using('other').filter(object_id=dive.pk).values_list('source',flat=True)),
# [u'Python Daily', u'Python Weekly'])
def test_ordering(self):
"get_next_by_XXX commands stick to a single database"
pro = Book.objects.create(title="Pro Django",
published=datetime.date(2008, 12, 16))
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
learn = Book.objects.using('other').create(title="Learning Python",
published=datetime.date(2008, 7, 16))
self.assertEquals(learn.get_next_by_published().title, "Dive into Python")
self.assertEquals(dive.get_previous_by_published().title, "Learning Python")
def test_raw(self):
"test the raw() method across databases"
dive = Book.objects.using('other').create(title="Dive into Python",
published=datetime.date(2009, 5, 4))
val = Book.objects.db_manager("other").raw('SELECT id FROM "multiple_database_book"')
self.assertEqual(map(lambda o: o.pk, val), [dive.pk])
val = Book.objects.raw('SELECT id FROM "multiple_database_book"').using('other')
self.assertEqual(map(lambda o: o.pk, val), [dive.pk])
class UserProfileTestCase(TestCase):
def setUp(self):
self.old_auth_profile_module = getattr(settings, 'AUTH_PROFILE_MODULE', None)
settings.AUTH_PROFILE_MODULE = 'multiple_database.UserProfile'
def tearDown(self):
settings.AUTH_PROFILE_MODULE = self.old_auth_profile_module
def test_user_profiles(self):
alice = User.objects.create_user('alice', 'alice@example.com')
bob = User.objects.db_manager('other').create_user('bob', 'bob@example.com')
alice_profile = UserProfile(user=alice, flavor='chocolate')
alice_profile.save()
bob_profile = UserProfile(user=bob, flavor='crunchy frog')
bob_profile.save()
self.assertEquals(alice.get_profile().flavor, 'chocolate')
self.assertEquals(bob.get_profile().flavor, 'crunchy frog')
class FixtureTestCase(TestCase):
multi_db = True
fixtures = ['multidb-common', 'multidb']
def test_fixture_loading(self):
"Multi-db fixtures are loaded correctly"
# Check that "Pro Django" exists on the default database, but not on other database
try:
Book.objects.get(title="Pro Django")
Book.objects.using('default').get(title="Pro Django")
except Book.DoesNotExist:
self.fail('"Pro Django" should exist on default database')
self.assertRaises(Book.DoesNotExist,
Book.objects.using('other').get,
title="Pro Django"
)
# Check that "Dive into Python" exists on the default database, but not on other database
try:
Book.objects.using('other').get(title="Dive into Python")
except Book.DoesNotExist:
self.fail('"Dive into Python" should exist on other database')
self.assertRaises(Book.DoesNotExist,
Book.objects.get,
title="Dive into Python"
)
self.assertRaises(Book.DoesNotExist,
Book.objects.using('default').get,
title="Dive into Python"
)
# Check that "Definitive Guide" exists on the both databases
try:
Book.objects.get(title="The Definitive Guide to Django")
Book.objects.using('default').get(title="The Definitive Guide to Django")
Book.objects.using('other').get(title="The Definitive Guide to Django")
except Book.DoesNotExist:
self.fail('"The Definitive Guide to Django" should exist on both databases')
class PickleQuerySetTestCase(TestCase):
multi_db = True
def test_pickling(self):
for db in connections:
Book.objects.using(db).create(title='Dive into Python', published=datetime.date(2009, 5, 4))
qs = Book.objects.all()
self.assertEqual(qs.db, pickle.loads(pickle.dumps(qs)).db)