How do you mock a service in AngularJS when unit testing with jasmine?

Solution 1:

beforeEach(function () {
  module(function ($provide) {
    $provide.value('schedule', mockSchedule);
  });
});

Module is a function provided by the angular-mocks module. If you pass in a string argument a module with the corresponding name is loaded and all providers, controllers, services, etc are available for the spec. Generally they are loaded using the inject function. If you pass in a callback function it will be invoked using Angular's $injector service. This service then looks at the arguments passed to the callback function and tries to infer what dependencies should be passed into the callback.

Solution 2:

Improving upon Atilla's answer and in direct answer to KevSheedy's comment, in the context of module('myApplicationModule') you would do the following:

beforeEach(module('myApplicationModule', function ($provide) {
  $provide.value('schedule', mockSchedule);
}));

Solution 3:

With CoffeeScript I run in some issues so I use null at the end:

beforeEach ->
  module ($provide) ->
    $provide.value 'someService',
      mockyStuff:
        value : 'AWESOME'
    null

Solution 4:

You can look here for more info

https://docs.angularjs.org/guide/services#unit-testing

You want to utilize the $provide service. In your case

$provide.value('schedule', mockSchedule);

Solution 5:

As you are using jasmine, there is an alternative way to mock the calls with jasmine's spies (https://jasmine.github.io/2.0/introduction.html#section-Spies).

Using these you can be targeted with your function calls, and allow call throughs to the original object if required. It avoids clogging up the top of your test file with $provide and mock implementations.

In the beforeEach of your test I would have something like:

var mySchedule, myWarehouse;

beforeEach(inject(function(schedule, warehouse) {

  mySchedule = schedule;
  myWarehouse = warehouse;

  spyOn(mySchedule, 'isShopOpen').and.callFake(function() {
    return true;
  });

  spyOn(myWarehouse, 'numAvailableSweets').and.callFake(function() {
    return 10;
  });

}));

and this should work in similar fashion to the $provide mechanism, noting you have to provide local instances of the injected variables to spy on.