javascript - karma 测试因良好的值(value)观而失败？

Question

我开始使用 karma 进行一些单元测试，但我不明白为什么我的第一个测试没有通过。

这是一个 Controller 文件:

angular.module('balrogApp.requests', [
  /* Dependancies */
])
  // Routes configuration
  .config(['$routeProvider', function($routeProvider) {
    /* $routeProvider configuration */
  }])
  .controller('requestsController', function(Requests, Users, Projects, RequestsComments, CostEstimations,
                                             Regions, growl, $route, $rootScope, $scope, $location) {
    this.requestTypesList = [
  {name: "New", trigram: "NEW"},
  {name: "Enhancement", trigram: "ENH"}
];
     this.requestPrioritiesList = [
  {name: "Low", trigram: "LOW"},
  {name: "Medium", trigram: "MED"},
  {name: "High", trigram: "HIG"}
];

/* ... */

});

这是测试文件:

describe('Requests controller', function() {
  beforeEach(module('balrogApp.requests'));

  var ctrl;
  var scope;

  var requestTypesList = [
    {name: "New", trigram: "NEW"},
    {name: "Enhancement", trigram: "ENH"}
  ];

  var requestPrioritiesList = [
    {name: "Low", trigram: "LOW"},
    {name: "Medium", trigram: "MED"},
    {name: "High", trigram: "HIG"}
  ];

  beforeEach(inject(function($rootScope, $controller) {
    scope = $rootScope.$new();
    ctrl = $controller('requestsController', { $scope: scope });
  }));

  afterEach(function() {
    scope.$destroy();
  });

  it('should have proper requestTypesList value', function(){
    expect(ctrl.requestTypesList).toBe(requestTypesList);
  });

  it('should have proper requestPrioritiesList value', function(){
    expect(ctrl.requestPrioritiesList).toBe(requestPrioritiesList);
  });
});

但这是测试结果:

Chrome 43.0.2357 (Windows 7 0.0.0) Requests controller should have proper requestTypesList value FAILED

Expected

[ Object({ name: 'New', trigram: 'NEW' }), Object({ name: 'Enhancement', trigram: 'ENH' }) ]

to be

[ Object({ name: 'New', trigram: 'NEW' }), Object({ name: 'Enhancement', trigram: 'ENH' }) ].

at Object. (C:/Users/aazor102115/Desktop/Dev/Balrog/tests/requests.js:28:35)

Chrome 43.0.2357 (Windows 7 0.0.0) Requests controller should have proper requestPrioritiesList value FAILED

Expected [ Object({ name: 'Low', trigram: 'LOW' }), Object({ name: 'Medium', trigram: 'MED' }), Object({ name: 'High', trigram: 'HIG' }) ]

to be

[ Object({ name: 'Low', trigram: 'LOW' }), Object({ name: 'Medium', trigram: 'MED' }), Object({ name: 'High', trigram: 'HIG' }) ].

at Object. (C:/Users/aazor102115/Desktop/Dev/Balrog/tests/requests.js:32:40) Chrome 43.0.2357 (Windows 7 0.0.0): Executed 2 of 2 (2 FAILED) ERROR (0.12 secs / 0.105 secs)

因此，即使日志中的值相同，测试也会失败。为什么会这样以及如何解决它？

Answer 1

将您的 toBe 断言更改为 toEqual，它们在内存中不是同一个对象。