angular.module('artists',[]).
  factory('Artists',['imageStore',function(imageStore){
    return {
      thumb:function(){
        return imageStore.thumbnailUrl(id)
      }
    }
  }])

beforeEach(module(function($provide){
  $provide.value('imageStore',{
    thumbnailUrl:function(id){
      url='/thumb/'+id
    }
  })
})

 beforeEach(inject(function($inject){
  Artists=$inject.get('Artists');
 }))

it('return the correct artist thumbnailUrl',function(){
  Artists.thumb('1');
  expect(url).toBe('/thumbs/1');
 })

describe('factory:artists',function(){
  var url;
  var Artists;
  beforeEach(module('artist'));
  beforeEach(module(function($provide){
    $provide.value('imageStore',{
      thumbnailUrl: function (id) {
      url = '/thumbs/' + id;
      }  
    })
  }));
  beforeEach(inject(function($injector){
    Artists=$injector.get('Artists')
  }))
  it('return the correct artist thumbnailUrl',function(){
    Artists.thumb('1');
    expect(url).toBe('/thumb/1')
  })

 })

 angular.module('hiphop',[])
  .factory('deejays',['$rootscope','scratch',function($rootscope,scratch){
    return{
      originator: 'DJ Kool Herc',
      technique: scratch.technique()
    }
  }])
  .factory('scratch',['$rootscope',function($rootscope){
    return{
      technique:function(){
        return 'breakbeat';
      }
    }
  }])

describe('Service: deejays',function(){
  beforeEach(module('hiphop'))；
  var deejays;
  beforeEach(inject(function($injector){
    deejays=$injector.get('deejays');
  }))
  beforeEach(inject(function($provide) {
    $provide.value('scratch',jasmine.createSpyObj('scratch', ['technique']));
  }));
  it('should return the correct originator',function(){
    expect(deejays.originator).toBe('DJ Kool Herc');
  })
 })