def test_from_native(self):
     # TODO: top-level import causes Travis test to fail
     from bulbs.campaigns.serializers import PixelTypeField
     field = PixelTypeField()
     self.assertEqual(CampaignPixel.LISTING, field.to_internal_value('Listing'))
     with self.assertRaises(KeyError):
         field.to_internal_value(None)
 def test_to_native(self):
     # TODO: top-level import causes Travis test to fail
     from bulbs.campaigns.serializers import PixelTypeField
     field = PixelTypeField()
     self.assertEqual('Listing', field.to_representation(CampaignPixel.LISTING))
     with self.assertRaises(KeyError):
         field.to_representation(None)