From a708b8fcbe49e857d9f900d6375d56f61e22212a Mon Sep 17 00:00:00 2001
From: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Sat, 24 Nov 2012 09:48:21 +0100
Subject: [PATCH] [1.5.x] Fixed #19343 -- Deadlock with TransactionTestCase +
TEST_MIRROR + multi_db.
Thanks Jeremy Dunck for the review.
Backport of be64dd3 from master.
---
django/test/testcases.py | 37 ++++++++++++++-----------------------
1 file changed, 14 insertions(+), 23 deletions(-)
diff --git a/django/test/testcases.py b/django/test/testcases.py
index 0f76e11c1a..3bb40a5838 100644
--- a/django/test/testcases.py
+++ b/django/test/testcases.py
@@ -416,6 +416,15 @@ class TransactionTestCase(SimpleTestCase):
self._urlconf_setup()
mail.outbox = []
+ def _databases_names(self, include_mirrors=True):
+ # If the test case has a multi_db=True flag, act on all databases,
+ # including mirrors or not. Otherwise, just on the default DB.
+ if getattr(self, 'multi_db', False):
+ return [alias for alias in connections
+ if include_mirrors or not connections[alias].settings_dict['TEST_MIRROR']]
+ else:
+ return [DEFAULT_DB_ALIAS]
+
def _reset_sequences(self, db_name):
conn = connections[db_name]
if conn.features.supports_sequence_reset:
@@ -433,10 +442,7 @@ class TransactionTestCase(SimpleTestCase):
transaction.commit_unless_managed(using=db_name)
def _fixture_setup(self):
- # If the test case has a multi_db=True flag, act on all databases.
- # Otherwise, just on the default DB.
- db_names = connections if getattr(self, 'multi_db', False) else [DEFAULT_DB_ALIAS]
- for db_name in db_names:
+ for db_name in self._databases_names(include_mirrors=False):
# Reset sequences
if self.reset_sequences:
self._reset_sequences(db_name)
@@ -502,16 +508,12 @@ class TransactionTestCase(SimpleTestCase):
conn.close()
def _fixture_teardown(self):
- # If the test case has a multi_db=True flag, flush all databases.
- # Otherwise, just flush default.
- databases = connections if getattr(self, 'multi_db', False) else [DEFAULT_DB_ALIAS]
-
# Roll back any pending transactions in order to avoid a deadlock
# during flush when TEST_MIRROR is used (#18984).
for conn in connections.all():
conn.rollback_unless_managed()
- for db in databases:
+ for db in self._databases_names(include_mirrors=False):
call_command('flush', verbosity=0, interactive=False, database=db,
skip_validation=True, reset_sequences=False)
@@ -796,11 +798,7 @@ class TestCase(TransactionTestCase):
assert not self.reset_sequences, 'reset_sequences cannot be used on TestCase instances'
- # If the test case has a multi_db=True flag, setup all databases.
- # Otherwise, just use default.
- db_names = connections if getattr(self, 'multi_db', False) else [DEFAULT_DB_ALIAS]
-
- for db_name in db_names:
+ for db_name in self._databases_names():
transaction.enter_transaction_management(using=db_name)
transaction.managed(True, using=db_name)
disable_transaction_methods()
@@ -808,7 +806,7 @@ class TestCase(TransactionTestCase):
from django.contrib.sites.models import Site
Site.objects.clear_cache()
- for db in db_names:
+ for db in self._databases_names(include_mirrors=False):
if hasattr(self, 'fixtures'):
call_command('loaddata', *self.fixtures,
**{
@@ -822,15 +820,8 @@ class TestCase(TransactionTestCase):
if not connections_support_transactions():
return super(TestCase, self)._fixture_teardown()
- # If the test case has a multi_db=True flag, teardown all databases.
- # Otherwise, just teardown default.
- if getattr(self, 'multi_db', False):
- databases = connections
- else:
- databases = [DEFAULT_DB_ALIAS]
-
restore_transaction_methods()
- for db in databases:
+ for db in self._databases_names():
transaction.rollback(using=db)
transaction.leave_transaction_management(using=db)