4 files changed, 8 insertions, 5 deletions
diff --git a/djangorestframework/tests/mixins.py b/djangorestframework/tests/mixins.py
index 65cf4a45..3b814aa7 100644
--- a/djangorestframework/tests/mixins.py
+++ b/djangorestframework/tests/mixins.py
@@ -8,13 +8,15 @@ from djangorestframework.mixins import CreateModelMixin, PaginatorMixin
 from djangorestframework.resources import ModelResource
 from djangorestframework.response import Response
 from djangorestframework.tests.models import CustomUser
+from djangorestframework.tests.testcases import TestModelsTestCase
 from djangorestframework.views import View
 
 
-class TestModelCreation(TestCase):
+class TestModelCreation(TestModelsTestCase):
     """Tests on CreateModelMixin"""
 
     def setUp(self):
+        super(TestModelsTestCase, self).setUp()
         self.req = RequestFactory()
 
     def test_creation(self):
diff --git a/djangorestframework/tests/models.py b/djangorestframework/tests/models.py
index 61da1d45..39ac59e7 100644
--- a/djangorestframework/tests/models.py
+++ b/djangorestframework/tests/models.py
@@ -25,4 +25,4 @@ class UserGroupMap(models.Model):
     def get_absolute_url(self):
         return ('user_group_map', (), {
             'pk': self.id
-        })            
-\ No newline at end of file
+        })
diff --git a/djangorestframework/tests/modelviews.py b/djangorestframework/tests/modelviews.py
index 2fd1878a..3fbc8ab6 100644
--- a/djangorestframework/tests/modelviews.py
+++ b/djangorestframework/tests/modelviews.py
@@ -5,6 +5,7 @@ from django.contrib.auth.models import Group, User
 from djangorestframework.resources import ModelResource
 from djangorestframework.views import ListOrCreateModelView, InstanceModelView
 from djangorestframework.tests.models import CustomUser
+from djangorestframework.tests.testcases import TestModelsTestCase
 
 class GroupResource(ModelResource):
     model = Group
@@ -31,7 +32,7 @@ urlpatterns = patterns('',
 )
 
 
-class ModelViewTests(TestCase):
+class ModelViewTests(TestModelsTestCase):
     """Test the model views djangorestframework provides"""
     urls = 'djangorestframework.tests.modelviews'  
 
diff --git a/djangorestframework/tests/serializer.py b/djangorestframework/tests/serializer.py
index fff72c02..5f42e7e2 100644
--- a/djangorestframework/tests/serializer.py
+++ b/djangorestframework/tests/serializer.py
@@ -56,8 +56,8 @@ class TestFieldNesting(TestCase):
         self.serialize = self.serializer.serialize
 
         class M1(models.Model):
-            field1 = models.CharField()
-            field2 = models.CharField()
+            field1 = models.CharField(max_length=256)
+            field2 = models.CharField(max_length=256)
 
         class M2(models.Model):
             field = models.OneToOneField(M1)