From 96301d21bb2ec7c5e06e3cea54fa2cdcd25a464d Mon Sep 17 00:00:00 2001
From: Claude Paroz <claude@2xlibre.net>
Date: Fri, 4 Jan 2013 13:55:20 +0100
Subject: [PATCH] [1.5.x] Fixed #19192 -- Allowed running tests with dummy db
 backend
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Thanks Simon Charette for the initial patch, and Jan Bednařík for
his work on the ticket.
Backport of b740da3504 from master.
---
 AUTHORS                                    |  1 +
 django/db/backends/dummy/base.py           |  6 +++++-
 tests/regressiontests/test_runner/tests.py | 18 ++++++++++++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/AUTHORS b/AUTHORS
index a4bd387bd25..070ec7003a7 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -125,6 +125,7 @@ answer newbie questions, and generally made Django that much better:
     Chris Chamberlin <dja@cdc.msbx.net>
     Amit Chakradeo <http://amit.chakradeo.net/>
     ChaosKCW
+    Simon Charette <charette.s@gmail.com>
     Kowito Charoenratchatabhan <kowito@felspar.com>
     Sengtha Chay <sengtha@e-khmer.com>
     ivan.chelubeev@gmail.com
diff --git a/django/db/backends/dummy/base.py b/django/db/backends/dummy/base.py
index 12a940d3a22..b648aae9c9c 100644
--- a/django/db/backends/dummy/base.py
+++ b/django/db/backends/dummy/base.py
@@ -31,6 +31,10 @@ class DatabaseOperations(BaseDatabaseOperations):
 class DatabaseClient(BaseDatabaseClient):
     runshell = complain
 
+class DatabaseCreation(BaseDatabaseCreation):
+    create_test_db = ignore
+    destroy_test_db = ignore
+
 class DatabaseIntrospection(BaseDatabaseIntrospection):
     get_table_list = complain
     get_table_description = complain
@@ -64,6 +68,6 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         self.features = BaseDatabaseFeatures(self)
         self.ops = DatabaseOperations(self)
         self.client = DatabaseClient(self)
-        self.creation = BaseDatabaseCreation(self)
+        self.creation = DatabaseCreation(self)
         self.introspection = DatabaseIntrospection(self)
         self.validation = BaseDatabaseValidation(self)
diff --git a/tests/regressiontests/test_runner/tests.py b/tests/regressiontests/test_runner/tests.py
index c723f162a42..5ef4d5537de 100644
--- a/tests/regressiontests/test_runner/tests.py
+++ b/tests/regressiontests/test_runner/tests.py
@@ -261,6 +261,24 @@ class Sqlite3InMemoryTestDbs(unittest.TestCase):
                 db.connections = old_db_connections
 
 
+class DummyBackendTest(unittest.TestCase):
+    def test_setup_databases(self):
+        """
+        Test that setup_databases() doesn't fail with dummy database backend.
+        """
+        runner = DjangoTestSuiteRunner(verbosity=0)
+        old_db_connections = db.connections
+        try:
+            db.connections = db.ConnectionHandler({})
+            old_config = runner.setup_databases()
+            runner.teardown_databases(old_config)
+        except Exception as e:
+            self.fail("setup_databases/teardown_databases unexpectedly raised "
+                      "an error: %s" % e)
+        finally:
+            db.connections = old_db_connections
+
+
 class AutoIncrementResetTest(TransactionTestCase):
     """
     Here we test creating the same model two times in different test methods,