1 files changed, 28 insertions, 0 deletions
diff --git a/tests/test_utils/test_transactiontestcase.py b/tests/test_utils/test_transactiontestcase.py
new file mode 100644
index 0000000000..34588ddefd
--- /dev/null
+++ b/tests/test_utils/test_transactiontestcase.py
@@ -0,0 +1,28 @@
+from django.test import TransactionTestCase, mock
+
+
+class TestSerializedRollbackInhibitsPostMigrate(TransactionTestCase):
+    """
+    TransactionTestCase._fixture_teardown() inhibits the post_migrate signal
+    for test classes with serialized_rollback=True.
+    """
+    available_apps = ['test_utils']
+    serialized_rollback = True
+
+    def setUp(self):
+        # self.available_apps must be None to test the serialized_rollback
+        # condition.
+        self.available_apps = None
+
+    def tearDown(self):
+        self.available_apps = ['test_utils']
+
+    @mock.patch('django.test.testcases.call_command')
+    def test(self, call_command):
+        # with a mocked call_command(), this doesn't have any effect.
+        self._fixture_teardown()
+        call_command.assert_called_with(
+            'flush', interactive=False, allow_cascade=False,
+            reset_sequences=False, inhibit_post_migrate=True,
+            database='default', verbosity=0,
+        )