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authorNishanth Amuluru2011-01-08 11:20:57 +0530
committerNishanth Amuluru2011-01-08 11:20:57 +0530
commit65411d01d448ff0cd4abd14eee14cf60b5f8fc20 (patch)
treeb4c404363c4c63a61d6e2f8bd26c5b057c1fb09d /parts/django/tests/regressiontests/delete_regress/tests.py
parent2e35094d43b4cc6974172e1febf76abb50f086ec (diff)
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Added buildout stuff and made changes accordingly
--HG-- rename : profile/management/__init__.py => eggs/djangorecipe-0.20-py2.6.egg/EGG-INFO/dependency_links.txt rename : profile/management/__init__.py => eggs/djangorecipe-0.20-py2.6.egg/EGG-INFO/not-zip-safe rename : profile/management/__init__.py => eggs/infrae.subversion-1.4.5-py2.6.egg/EGG-INFO/dependency_links.txt rename : profile/management/__init__.py => eggs/infrae.subversion-1.4.5-py2.6.egg/EGG-INFO/not-zip-safe rename : profile/management/__init__.py => eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/EGG-INFO/dependency_links.txt rename : profile/management/__init__.py => eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/EGG-INFO/not-zip-safe rename : profile/management/__init__.py => eggs/py-1.4.0-py2.6.egg/EGG-INFO/dependency_links.txt rename : profile/management/__init__.py => eggs/py-1.4.0-py2.6.egg/EGG-INFO/not-zip-safe rename : profile/management/__init__.py => eggs/zc.buildout-1.5.2-py2.6.egg/EGG-INFO/dependency_links.txt rename : profile/management/__init__.py => eggs/zc.buildout-1.5.2-py2.6.egg/EGG-INFO/not-zip-safe rename : profile/management/__init__.py => eggs/zc.recipe.egg-1.3.2-py2.6.egg/EGG-INFO/dependency_links.txt rename : profile/management/__init__.py => eggs/zc.recipe.egg-1.3.2-py2.6.egg/EGG-INFO/not-zip-safe rename : profile/management/__init__.py => parts/django/Django.egg-info/dependency_links.txt rename : taskapp/models.py => parts/django/django/conf/app_template/models.py rename : taskapp/tests.py => parts/django/django/conf/app_template/tests.py rename : taskapp/views.py => parts/django/django/conf/app_template/views.py rename : taskapp/views.py => parts/django/django/contrib/gis/tests/geo3d/views.py rename : profile/management/__init__.py => parts/django/tests/modeltests/delete/__init__.py rename : profile/management/__init__.py => parts/django/tests/modeltests/files/__init__.py rename : profile/management/__init__.py => parts/django/tests/modeltests/invalid_models/__init__.py rename : profile/management/__init__.py => parts/django/tests/modeltests/m2m_signals/__init__.py rename : profile/management/__init__.py => parts/django/tests/modeltests/model_package/__init__.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/bash_completion/__init__.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/bash_completion/management/__init__.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/bash_completion/management/commands/__init__.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/bash_completion/models.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/delete_regress/__init__.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/file_storage/__init__.py rename : profile/management/__init__.py => parts/django/tests/regressiontests/max_lengths/__init__.py rename : profile/forms.py => pytask/profile/forms.py rename : profile/management/__init__.py => pytask/profile/management/__init__.py rename : profile/management/commands/seed_db.py => pytask/profile/management/commands/seed_db.py rename : profile/models.py => pytask/profile/models.py rename : profile/templatetags/user_tags.py => pytask/profile/templatetags/user_tags.py rename : taskapp/tests.py => pytask/profile/tests.py rename : profile/urls.py => pytask/profile/urls.py rename : profile/utils.py => pytask/profile/utils.py rename : profile/views.py => pytask/profile/views.py rename : static/css/base.css => pytask/static/css/base.css rename : taskapp/tests.py => pytask/taskapp/tests.py rename : taskapp/views.py => pytask/taskapp/views.py rename : templates/base.html => pytask/templates/base.html rename : templates/profile/browse_notifications.html => pytask/templates/profile/browse_notifications.html rename : templates/profile/edit.html => pytask/templates/profile/edit.html rename : templates/profile/view.html => pytask/templates/profile/view.html rename : templates/profile/view_notification.html => pytask/templates/profile/view_notification.html rename : templates/registration/activate.html => pytask/templates/registration/activate.html rename : templates/registration/activation_email.txt => pytask/templates/registration/activation_email.txt rename : templates/registration/activation_email_subject.txt => pytask/templates/registration/activation_email_subject.txt rename : templates/registration/logged_out.html => pytask/templates/registration/logged_out.html rename : templates/registration/login.html => pytask/templates/registration/login.html rename : templates/registration/logout.html => pytask/templates/registration/logout.html rename : templates/registration/password_change_done.html => pytask/templates/registration/password_change_done.html rename : templates/registration/password_change_form.html => pytask/templates/registration/password_change_form.html rename : templates/registration/password_reset_complete.html => pytask/templates/registration/password_reset_complete.html rename : templates/registration/password_reset_confirm.html => pytask/templates/registration/password_reset_confirm.html rename : templates/registration/password_reset_done.html => pytask/templates/registration/password_reset_done.html rename : templates/registration/password_reset_email.html => pytask/templates/registration/password_reset_email.html rename : templates/registration/password_reset_form.html => pytask/templates/registration/password_reset_form.html rename : templates/registration/registration_complete.html => pytask/templates/registration/registration_complete.html rename : templates/registration/registration_form.html => pytask/templates/registration/registration_form.html rename : utils.py => pytask/utils.py
Diffstat (limited to 'parts/django/tests/regressiontests/delete_regress/tests.py')
-rw-r--r--parts/django/tests/regressiontests/delete_regress/tests.py116
1 files changed, 116 insertions, 0 deletions
diff --git a/parts/django/tests/regressiontests/delete_regress/tests.py b/parts/django/tests/regressiontests/delete_regress/tests.py
new file mode 100644
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+++ b/parts/django/tests/regressiontests/delete_regress/tests.py
@@ -0,0 +1,116 @@
+import datetime
+
+from django.conf import settings
+from django.db import backend, connection, transaction, DEFAULT_DB_ALIAS
+from django.test import TestCase, TransactionTestCase
+
+from models import Book, Award, AwardNote, Person, Child, Toy, PlayedWith, PlayedWithNote
+
+# Can't run this test under SQLite, because you can't
+# get two connections to an in-memory database.
+if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'] != 'django.db.backends.sqlite3':
+ class DeleteLockingTest(TransactionTestCase):
+ def setUp(self):
+ # Create a second connection to the default database
+ conn_settings = settings.DATABASES[DEFAULT_DB_ALIAS]
+ self.conn2 = backend.DatabaseWrapper({
+ 'HOST': conn_settings['HOST'],
+ 'NAME': conn_settings['NAME'],
+ 'OPTIONS': conn_settings['OPTIONS'],
+ 'PASSWORD': conn_settings['PASSWORD'],
+ 'PORT': conn_settings['PORT'],
+ 'USER': conn_settings['USER'],
+ 'TIME_ZONE': settings.TIME_ZONE,
+ })
+
+ # Put both DB connections into managed transaction mode
+ transaction.enter_transaction_management()
+ transaction.managed(True)
+ self.conn2._enter_transaction_management(True)
+
+ def tearDown(self):
+ # Close down the second connection.
+ transaction.leave_transaction_management()
+ self.conn2.close()
+
+ def test_concurrent_delete(self):
+ "Deletes on concurrent transactions don't collide and lock the database. Regression for #9479"
+
+ # Create some dummy data
+ b1 = Book(id=1, pagecount=100)
+ b2 = Book(id=2, pagecount=200)
+ b3 = Book(id=3, pagecount=300)
+ b1.save()
+ b2.save()
+ b3.save()
+
+ transaction.commit()
+
+ self.assertEquals(3, Book.objects.count())
+
+ # Delete something using connection 2.
+ cursor2 = self.conn2.cursor()
+ cursor2.execute('DELETE from delete_regress_book WHERE id=1')
+ self.conn2._commit();
+
+ # Now perform a queryset delete that covers the object
+ # deleted in connection 2. This causes an infinite loop
+ # under MySQL InnoDB unless we keep track of already
+ # deleted objects.
+ Book.objects.filter(pagecount__lt=250).delete()
+ transaction.commit()
+ self.assertEquals(1, Book.objects.count())
+
+class DeleteCascadeTests(TestCase):
+ def test_generic_relation_cascade(self):
+ """
+ Test that Django cascades deletes through generic-related
+ objects to their reverse relations.
+
+ This might falsely succeed if the database cascades deletes
+ itself immediately; the postgresql_psycopg2 backend does not
+ give such a false success because ForeignKeys are created with
+ DEFERRABLE INITIALLY DEFERRED, so its internal cascade is
+ delayed until transaction commit.
+
+ """
+ person = Person.objects.create(name='Nelson Mandela')
+ award = Award.objects.create(name='Nobel', content_object=person)
+ note = AwardNote.objects.create(note='a peace prize',
+ award=award)
+ self.assertEquals(AwardNote.objects.count(), 1)
+ person.delete()
+ self.assertEquals(Award.objects.count(), 0)
+ # first two asserts are just sanity checks, this is the kicker:
+ self.assertEquals(AwardNote.objects.count(), 0)
+
+ def test_fk_to_m2m_through(self):
+ """
+ Test that if a M2M relationship has an explicitly-specified
+ through model, and some other model has an FK to that through
+ model, deletion is cascaded from one of the participants in
+ the M2M, to the through model, to its related model.
+
+ Like the above test, this could in theory falsely succeed if
+ the DB cascades deletes itself immediately.
+
+ """
+ juan = Child.objects.create(name='Juan')
+ paints = Toy.objects.create(name='Paints')
+ played = PlayedWith.objects.create(child=juan, toy=paints,
+ date=datetime.date.today())
+ note = PlayedWithNote.objects.create(played=played,
+ note='the next Jackson Pollock')
+ self.assertEquals(PlayedWithNote.objects.count(), 1)
+ paints.delete()
+ self.assertEquals(PlayedWith.objects.count(), 0)
+ # first two asserts just sanity checks, this is the kicker:
+ self.assertEquals(PlayedWithNote.objects.count(), 0)
+
+class LargeDeleteTests(TestCase):
+ def test_large_deletes(self):
+ "Regression for #13309 -- if the number of objects > chunk size, deletion still occurs"
+ for x in range(300):
+ track = Book.objects.create(pagecount=x+100)
+ Book.objects.all().delete()
+ self.assertEquals(Book.objects.count(), 0)