Add javascript tests for clusterOverviewController

This patch adds javascript tests for the following modules.
 - horizon.dashboard.container-infra.clusters.details
   .overview.controller

In addition, it has changed the ".success()"  to the ".then()".

Change-Id: Ia08a22febef04b8279d658e927789eff2ce8b9cf

magnum_ui/static/dashboard/container-infra/clusters/details/overview.controller.js

@@ -35,7 +35,7 @@
 
     function onGetCluster(cluster) {
       ctrl.cluster = cluster.data;
-      magnum.getClusterTemplate(ctrl.cluster.cluster_template_id).success(onGetClusterTemplate);
+      magnum.getClusterTemplate(ctrl.cluster.cluster_template_id).then(onGetClusterTemplate);
     }
 
     function onGetClusterTemplate(clusterTemplate) {

magnum_ui/static/dashboard/container-infra/clusters/details/overview.controller.spec.js

@@ -0,0 +1,45 @@
+/**
+ * (c) Copyright 2016 NEC Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+(function() {
+  'use strict';
+
+  describe('cluster overview controller', function() {
+
+    var ctrl, magnum, deferred;
+
+    beforeEach(module('horizon.dashboard.container-infra.clusters'));
+
+    beforeEach(inject(function($controller, $q, $injector) {
+      magnum = $injector.get('horizon.app.core.openstack-service-api.magnum');
+      deferred = $q.defer();
+      deferred.resolve({data: {image_id: 1},items:{1:{name:1,id:1},2:{name:2,id:2}}});
+      spyOn(magnum, 'getClusterTemplate').and.returnValue(deferred.promise);
+      ctrl = $controller('ClusterOverviewController',
+        {
+          '$scope' : {context : {loadPromise: deferred.promise}}
+        }
+      );
+    }));
+
+    it('sets ctrl', inject(function($timeout) {
+      $timeout.flush();
+      expect(ctrl.cluster_template).toBeDefined();
+      expect(ctrl.cluster).toBeDefined();
+    }));
+
+  });
+})();