Unit-testing nested services with Jasmine 2.3.4 in AngularJS 1.4.6

[Krizzo]

I have problems to test services of the app because I don't know how to do it.
In google search results I've found many tutorials and examples but nothing was useful for my purpose.

Also, I don't know when to use the $httpBackend and why I need to define a fake service?!

However my intention is to test the services whether they're return a response or not as well as you define an item and make a GET request to see if the value exists and so on.
But the main issue is to understand how can I define a unit test for services in my examples.

To have a better imagine, I put the code in this post:

Firstly testing the CRUDService:

angular.module('testApp')
    .factory('CrudService', ['ResService',
        function (ResService) {
            var service = {
                getAllCompanies: getAllCompanies,
                getAllGroups: getAllGroups
            };

            return service;

            function getAllCompanies() {
                return ResService.company.query();
            }
           
            function getAllGroups() {
                return ResService.group.query();
            }
    }]);

Following the Service who communicates with the backend: ResService:

angular.module('testApp')
    .factory('ResService', ['$resource', 'baseUrl',
        function ($resource, baseUrl) {
            return {

               company: $resource(baseUrl + '/api/company/:Id/:code', {
                    Id: '@Id',
                    code: '@code'
                }, {
                    'update': {
                        method: 'PUT'
                    }
                }),

                group: $resource(baseUrl + '/api/group/:Id', {
                    Id: '@Id'
                }, {})
...

Do anyone have an idea? I've tried this example to integrate in my test but it was not the correct way..

[Luke Winikates]

Hi Krizzo,

I'd refer to the Angular docs to get a sense of Google's suggested strategy for testing Angular code that makes http requests: https://docs.angularjs.org/api/ngMock/service/$httpBackend

If that doc doesn't get you past the current hurdle, you may find it useful to track down a google group related to Angular, or to ask your question on StackOverflow. Test code for Angular uses a lot of Angular-specific patterns. Those aren't part of Jasmine itself, so the best place to find expertise on your specific situation is probably within the Angular community.

Hope that helps.