--- a/test.py	Mon Jul 25 16:24:07 2016 +0800
+++ b/test.py	Mon Jul 25 16:42:36 2016 +0800
@@ -26,9 +26,12 @@
     item_url = ''
     all_url = '/%s/all/'
 
+    def json_payload(self, data):
+        return {'content_type': 'application/json', 'data': json.dumps(data)}
+
     def create_resource(self, new_resource):
         url = self.list_url % self.workspace
-        response = self.c.post(url, content_type='application/json', data=json.dumps(new_resource))
+        response = self.c.post(url, **self.json_payload(new_resource))
         data = json.loads(response.data)
 
         self.assertIn('_t', data)
@@ -66,7 +69,7 @@
 
     def update_resource(self, resource_id, resource_update):
         url = self.item_url % (self.workspace, resource_id)
-        response = self.c.put(url, content_type='application/json', data=json.dumps(resource_update))
+        response = self.c.put(url, **self.json_payload(resource_update))
         data = json.loads(response.data)
 
         self.assertEqual(data['_id'], resource_id)