Ticket #16818: 16818_test.diff

tests/regressiontests/transactions_regress/models.py

@@ -2 +2 @@
 
 class Mod(models.Model):
     fld = models.IntegerField()
+
+class M2mA(models.Model):
+    others = models.ManyToManyField('M2mB')
+
+class M2mB(models.Model):
+    fld = models.IntegerField()

tests/regressiontests/transactions_regress/tests.py

@@ -5 +5 @@
 from django.db.transaction import commit_on_success, commit_manually, TransactionManagementError
 from django.test import TransactionTestCase, skipUnlessDBFeature
 
-from .models import Mod
+from .models import Mod, M2mA, M2mB
 
 
 class TestTransactionClosing(TransactionTestCase):
@@ -164 +164 @@
             _ = User.objects.all()[0]
         except:
             self.fail("A transaction consisting of a failed operation was not closed.")
+
+class TestManyToManyAddTransaction(TransactionTestCase):
+    def test_manyrelated_add_commit(self):
+        """test for 16818"""
+        a = M2mA.objects.create()
+        b = M2mB.objects.create(fld=10)
+        a.others.add(b)
+        transaction.rollback()
+        self.assertQuerysetEqual(a.others.all(),['<M2mB: M2mB object>'])