don't hard code the ordering of the tabs in the test. Take the current ordering defintion (in the test data) and reverse it

cms/djangoapps/contentstore/tests/tests.py

@@ -353,27 +353,26 @@ class ContentStoreTest(TestCase):
     def test_static_tab_reordering(self):
         import_from_xml(modulestore(), 'common/test/data/', ['full'])
         
-        # reverse the ordering
-        tabs = { 'tabs' :  ['i4x://edX/full/static_tab/resources', 'i4x://edX/full/static_tab/syllabus'] }       
-        resp = self.client.post(reverse('reorder_tabs'), json.dumps(tabs), "application/json")
-
         ms = modulestore('direct')
+        course = ms.get_item(Location(['i4x','edX','full','course','6.002_Spring_2012', None]))
+
+        # reverse the ordering
+        reverse_tabs = []
+        for tab in course.tabs:
+            if tab['type'] == 'static_tab':
+                reverse_tabs.insert(0, 'i4x://edX/full/static_tab/{0}'.format(tab['url_slug']))
+ 
+        resp = self.client.post(reverse('reorder_tabs'), json.dumps({'tabs':reverse_tabs}), "application/json")
+
         course = ms.get_item(Location(['i4x','edX','full','course','6.002_Spring_2012', None]))
         # compare to make sure that the tabs information is in the expected order after the server call
 
-        resource_idx = 0
-        syllabus_idx = 0
-        idx = 0
+        course_tabs = []
         for tab in course.tabs:
             if tab['type'] == 'static_tab':
-                if tab['url_slug'] == 'resources':
-                    resource_idx = idx
-                elif tab['url_slug'] == 'syllabus':
-                    syllabus_idx = idx
-            idx+=1
-
-        self.assertLess(resource_idx, syllabus_idx)
+                course_tabs.append('i4x://edX/full/static_tab/{0}'.format(tab['url_slug']))
 
+        self.assertEqual(reverse_tabs, course_tabs)