add test for instance groups service

awx/ui/test/spec/instance-groups/instance-groups.service-test.js

@@ -0,0 +1,73 @@
+'use strict';
+
+const mockUrl = '';
+const mockSavedInstanceGroups = {
+    data: {
+        results: [
+            { id: 1 },
+            { id: 2 },
+            { id: 3 },
+            { id: 4 },
+            { id: 5 },
+            { id: 6 },
+        ]
+    }
+};
+
+const _postData = [];
+function MockRest() {
+    return {
+        setUrl (){},
+        get () {
+            return Promise.resolve(mockSavedInstanceGroups);
+        },
+        post (data) {
+            _postData.push(data);
+            return Promise.resolve({});    
+        },
+    }
+}
+
+describe('instanceGroupsService', () => {
+    let instanceGroupsService;
+
+    beforeEach(() => {
+        angular.mock.module('awApp');
+        angular.mock.module($provide => {
+            $provide.service('Rest', MockRest);
+        });
+        angular.mock.module('instanceGroups');
+        angular.mock.inject($injector => {
+            instanceGroupsService = $injector.get('InstanceGroupsService');
+        });
+    });
+
+    describe('editInstanceGroups', () => {
+        it('makes the expected requests', (done) => {
+            const selectedInstanceGroups = [
+                { id: 1 },
+                { id: 2 },
+                { id: 4 },
+                { id: 5 },
+                { id: 6 },
+                { id: 7 },
+                { id: 3 },
+            ];
+            instanceGroupsService.editInstanceGroups(mockUrl, selectedInstanceGroups)
+                .then(() => {
+                    expect(_postData).toEqual([
+                        { id: 3, disassociate: true },
+                        { id: 4, disassociate: true },
+                        { id: 5, disassociate: true },
+                        { id: 6, disassociate: true },
+                        { id: 4, associate: true },
+                        { id: 5, associate: true },
+                        { id: 6, associate: true },
+                        { id: 7, associate: true },
+                        { id: 3, associate: true },
+                    ]);
+                })
+                .finally(() => done());
+        });
+    });
+});