How to inject a mock service into another service in unit test

[Di Peng]

Hi,

   I have created two services, A and B. B depends on A but I need to mock out A when unit testing B. How do I inject into B this mockA instead of the real A? Can someone point me to any code examples? 
Thank you very much

Di

[Lee Byrd]

+1

[Peter Bacon Darwin]

Either get hold of the original service A in your beforeEach and modify it or simply recreate it before your test runs.  Something like this:

angular.module('MockAModule', []).factory('A', function() {

 // Mock out A here

});

// This will load the BModule, and potential the original AModule if it is a dependency

beforeEach(module('BModule'));

// This will load the MockAModule, which will overwrite the original A service with your mock.

beforeEach(module('MockAModule'));

var B;

beforeEach(inject(B, function(_B_) {

 B = _B_;

});

describe('B', function() {

  // Test B

}

+1

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