more unit test work

src/test/specs/overview-ctrl-specs.js

@@ -6,6 +6,7 @@ define([
   describe('OverviewCtrl', function() {
     var _controller;
     var _scope;
+    var _datasource;
 
     beforeEach(module('grafana.services'));
     beforeEach(module('grafana.panels.overview'));
@@ -15,14 +16,22 @@ define([
         getMetricSources: function() {
         },
         get: function() {
-          return {};
+          return _datasource;
         }
       });
     }));
 
-    beforeEach(inject(function($controller, $rootScope) {
+    beforeEach(inject(function($controller, $rootScope, $q) {
       _scope = $rootScope.$new();
       _scope.panel = { targets: [] };
+      _scope.filter = {
+        timeRange: function() { }
+      };
+      _scope.datasource = {
+        query: function() {
+          return $q.resolve('hej');
+        }
+      };
       _controller = $controller('OverviewCtrl', {
         $scope: _scope
       });

src/test/test-main.js

@@ -124,6 +124,7 @@ require([
     'specs/filterSrv-specs',
     'specs/kbn-format-specs',
     'specs/dashboardModel-specs',
+    'specs/overview-ctrl-specs',
     'specs/influxSeries-specs'
   ], function () {
     window.__karma__.start();