AngularJS Unit Test: Service, complex

serviceComplex.js

// Group by module
describe('MyModule', function () {
  
  // Initialise the module for each test
  beforeEach(module('MyModule'));
  
  // Group by service  
  describe('myService', function () {  
    var service;  
  
    // Setup for each test  
    beforeEach(inject(function (myService) {  
      // Every test I'm going to want an instance of "myService"  
      service = myService;  
    }));  
  
    // Tests for the newly constructed service  
    it('Contains property "myProperty"', function () {  
      expect(service.myProperty).not.toBeUndefined();  
    });  
  
    // Grouping tests by method  
    describe('myMethod(input)', function () {     
      it('Returns the input', function () {  
        var a = {};  
        expect(service.myMethod(a)).toBe(a);  
      });  
    });  
  });
});