Fixed #31750 -- Made models.Field equality compare models for inherited fields.

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/model_fields/tests.py b/tests/model_fields/tests.py
index b97c99d42d..af2634dd63 100644
--- a/tests/model_fields/tests.py
+++ b/tests/model_fields/tests.py
@@ -102,6 +102,36 @@ class BasicFieldTests(SimpleTestCase):
         name, path, args, kwargs = Nested.Field().deconstruct()
         self.assertEqual(path, 'model_fields.tests.Nested.Field')
 
+    def test_abstract_inherited_fields(self):
+        """Field instances from abstract models are not equal."""
+        class AbstractModel(models.Model):
+            field = models.IntegerField()
+
+            class Meta:
+                abstract = True
+
+        class InheritAbstractModel1(AbstractModel):
+            pass
+
+        class InheritAbstractModel2(AbstractModel):
+            pass
+
+        abstract_model_field = AbstractModel._meta.get_field('field')
+        inherit1_model_field = InheritAbstractModel1._meta.get_field('field')
+        inherit2_model_field = InheritAbstractModel2._meta.get_field('field')
+
+        self.assertNotEqual(abstract_model_field, inherit1_model_field)
+        self.assertNotEqual(abstract_model_field, inherit2_model_field)
+        self.assertNotEqual(inherit1_model_field, inherit2_model_field)
+
+        self.assertLess(abstract_model_field, inherit1_model_field)
+        self.assertLess(abstract_model_field, inherit2_model_field)
+        self.assertLess(inherit1_model_field, inherit2_model_field)
+
+        self.assertNotEqual(hash(abstract_model_field), hash(inherit1_model_field))
+        self.assertNotEqual(hash(abstract_model_field), hash(inherit2_model_field))
+        self.assertNotEqual(hash(inherit1_model_field), hash(inherit2_model_field))
+
 
 class ChoicesTests(SimpleTestCase):