2 files changed, 16 insertions, 0 deletions
diff --git a/tests/modeltests/validation/models.py b/tests/modeltests/validation/models.py
index fca2cef261..182e739daf 100644
--- a/tests/modeltests/validation/models.py
+++ b/tests/modeltests/validation/models.py
@@ -90,3 +90,13 @@ class GenericIPAddressTestModel(models.Model):
 
 class GenericIPAddrUnpackUniqueTest(models.Model):
     generic_v4unpack_ip = models.GenericIPAddressField(blank=True, unique=True, unpack_ipv4=True)
+
+
+try:
+    # A model can't have multiple AutoFields
+    # Refs #12467.
+    class MultipleAutoFields(models.Model):
+        auto1 = models.AutoField(primary_key=True)
+        auto2 = models.AutoField(primary_key=True)
+except AssertionError, e:
+    assert e.message == u"A model can't have more than one AutoField."
+\ No newline at end of file
diff --git a/tests/modeltests/validation/test_error_messages.py b/tests/modeltests/validation/test_error_messages.py
index 43b707e632..299a93a41a 100644
--- a/tests/modeltests/validation/test_error_messages.py
+++ b/tests/modeltests/validation/test_error_messages.py
@@ -12,6 +12,12 @@ class ValidationMessagesTest(TestCase):
             f.clean('foo', None)
         except ValidationError, e:
             self.assertEqual(e.messages, [u"'foo' value must be an integer."])
+        # primary_key must be True. Refs #12467.
+        self.assertRaises(AssertionError, models.AutoField, 'primary_key', False)
+        try:
+            models.AutoField(primary_key=False)
+        except AssertionError, e:
+            self.assertEqual(e.message, u"AutoFields must have primary_key=True.")
 
     def test_integer_field_raises_error_message(self):
         f = models.IntegerField()