diff --git a/graphene_django/fields.py b/graphene_django/fields.py
index 6383258..35df1e1 100644
--- a/graphene_django/fields.py
+++ b/graphene_django/fields.py
@@ -1,4 +1,4 @@
-from functools import partial
+from functools import partial, reduce
 
 from django.db.models.query import QuerySet
 from graphene.types import Field, List
diff --git a/graphene_django/forms/tests/test_mutation.py b/graphene_django/forms/tests/test_mutation.py
index 329a7c1..5d28259 100644
--- a/graphene_django/forms/tests/test_mutation.py
+++ b/graphene_django/forms/tests/test_mutation.py
@@ -133,15 +133,14 @@ class ModelFormMutationTests(TestCase):
         # A pet was not created
         self.assertEqual(Pet.objects.count(), 0)
 
-
-        fields_w_error = [e.field for e in result.errors]
+        fields_w_error = {e.field: e.messages for e in result.errors}
         self.assertEqual(len(result.errors), 3)
         self.assertIn("testCamel", fields_w_error)
-        self.assertEqual(result.errors[0].messages, ["Enter a whole number."])
+        self.assertEqual(fields_w_error['testCamel'], ["Enter a whole number."])
         self.assertIn("name", fields_w_error)
-        self.assertEqual(result.errors[1].messages, ["This field is required."])
+        self.assertEqual(fields_w_error['name'], ["This field is required."])
         self.assertIn("age", fields_w_error)
-        self.assertEqual(result.errors[2].messages, ["This field is required."])
+        self.assertEqual(fields_w_error['age'], ["This field is required."])
 
 
 class FormMutationTests(TestCase):