fix the error Haproxy.cls_linked_services is assigned as a list

Author: tifayuki

haproxy/helper/cloud_link_helper.py

@@ -67,11 +67,10 @@ def _get_linked_containers(cache, container_links):
 
 
 def get_linked_services(haproxy_links):
-    linked_services = []
+    linked_services = set()
     for link in haproxy_links.itervalues():
-        if link["service_uri"] not in linked_services:
-            linked_services.append(link["service_uri"])
-    return linked_services
+            linked_services.add(link["service_uri"])
+    return set(linked_services)
 
 
 def get_service_links_str(haproxy_links):

tests/unit/helper/test_cloud_link_helper.py

@@ -112,8 +112,8 @@ def test_get_linked_containers(self):
         self.assertEqual([container_b, container_a], _get_linked_containers(cache, self.container_links))
 
     def test_get_linked_service(self):
-        self.assertEqual(['/api/app/v1/service/bc091010-0054-4cc6-9038-73ea1efc5b99/',
-                          '/api/app/v1/service/0d12900d-2ae8-4244-a9c0-48466347c08a/'],
+        self.assertEqual(set(['/api/app/v1/service/bc091010-0054-4cc6-9038-73ea1efc5b99/',
+                          '/api/app/v1/service/0d12900d-2ae8-4244-a9c0-48466347c08a/']),
                          get_linked_services(self.new_links))
 
     def test_get_service_Links_str(self):