Fixed #28856 -- Fixed a regression in caching of a GenericForeignKey pointing to a MTI model.

Regression in b9f8635f58ad743995cad2081b3dc395e55761e5.

2 files changed, 1 insertions, 11 deletions

diff --git a/tests/serializers/test_xml.py b/tests/serializers/test_xml.py
index ea9677d87f..b11cfdd864 100644
--- a/tests/serializers/test_xml.py
+++ b/tests/serializers/test_xml.py
@@ -30,12 +30,6 @@ class XmlSerializerTestCase(SerializersTestBase, TestCase):
 </django-objects>"""  # NOQA
 
     @staticmethod
-    def _comparison_value(value):
-        # The XML serializer handles everything as strings, so comparisons
-        # need to be performed on the stringified value
-        return str(value)
-
-    @staticmethod
     def _validate_output(serial_str):
         try:
             minidom.parseString(serial_str)
diff --git a/tests/serializers/tests.py b/tests/serializers/tests.py
index 0ea60f0f64..66fc2ef40c 100644
--- a/tests/serializers/tests.py
+++ b/tests/serializers/tests.py
@@ -90,10 +90,6 @@ class SerializerRegistrationTests(SimpleTestCase):
 class SerializersTestBase:
     serializer_name = None  # Set by subclasses to the serialization format name
 
-    @staticmethod
-    def _comparison_value(value):
-        return value
-
     def setUp(self):
         sports = Category.objects.create(name="Sports")
         music = Category.objects.create(name="Music")
@@ -193,7 +189,7 @@ class SerializersTestBase:
         self.assertFalse(self._get_field_values(serial_str, 'author'))
 
         for obj in serializers.deserialize(self.serializer_name, serial_str):
-            self.assertEqual(obj.object.pk, self._comparison_value(self.joe.pk))
+            self.assertEqual(obj.object.pk, self.joe.pk)
 
     def test_serialize_field_subset(self):
         """Output can be restricted to a subset of fields"""