Added tests for using attnames to assign OneToOne and Foreign Key fields.

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/one_to_one/tests.py b/tests/one_to_one/tests.py
index 51e358c7f9..78b3ff1135 100644
--- a/tests/one_to_one/tests.py
+++ b/tests/one_to_one/tests.py
@@ -205,6 +205,18 @@ class OneToOneTests(TestCase):
         # reverse cache has a value of None.
         p.undergroundbar = None
 
+    def test_assign_o2o_id_value(self):
+        b = UndergroundBar.objects.create(place=self.p1)
+        b.place_id = self.p2.pk
+        b.save()
+        self.assertEqual(b.place_id, self.p2.pk)
+        self.assertFalse(UndergroundBar.place.is_cached(b))
+        self.assertEqual(b.place, self.p2)
+        self.assertTrue(UndergroundBar.place.is_cached(b))
+        # Reassigning the same value doesn't clear a cached instance.
+        b.place_id = self.p2.pk
+        self.assertTrue(UndergroundBar.place.is_cached(b))
+
     def test_related_object_cache(self):
         """ Regression test for #6886 (the related-object cache) """