AngularJS、摩卡、业力。测试控制器,模拟服务承诺

AngularJS, Mocha, Karma. testing controller, mocking service promise

我正在使用 AngularJS、Karma、Mocha、Chai、Chai-as-promised、Sinon。
我正在尝试下面的控制器。我在模拟服务用户和测试控制器中的 .then() 部分时遇到问题。

控制器代码

.controller('SignupPhoneCtrl', function(User, $scope) {
  $scope.sendPhoneNumber = function(countryCode, phoneNumber){
    User.sendPhoneNumber(countryCode, phoneNumber)
    .then(function(result){
      if(result == "success"){
        //I WANT TO TEST THIS SECTION
        return "success";
      }
        //I WANT TO TEST THIS SECTION
      return "fail";
    });
  }
})

控制器测试代码

describe('Controller: Signup-phone', function() {
  var scope;
  var UserMock;
  var SignupPhoneCtrl;

  beforeEach(function() {
    module('starter.controllers');
  });

  beforeEach(inject(function($rootScope, $controller, $q){
    scope = $rootScope.$new();
    UserMock = {
      sendPhoneNumber: function(countryCode, phoneNumber){
        var deferred = $q.defer();
        // console.log("called"); //This part is being called
        deferred.resolve('foo');
        return deferred.promise;
      }
    };
    SignupPhoneCtrl = $controller("SignupPhoneCtrl", {$scope: scope, User: UserMock});
  }))

  it('should return asdf', function(){
    scope.$digest();

    //WHAT SHOULD I WRITE HERE?

  })
});


我试过下面的方法,但断言部分没有被调用。

scope.sendPhoneNumber(12, 53452123).then(function(result){
  result.should.equal("fail");  //THIS SECTION IS NOT CALLED
})

我试过下面的方法,但它给出了错误:'undefined' 不是一个函数(评估 'promise.then.bind(promise)'

scope.sendPhoneNumber(12, 53452123).should.eventually.equal("fail");

sendPhoneNumber(12, 53452123) returns Object{$$state: Object{status: 0}}


我尝试添加 sinon.spy(UserMock, 'sendPhoneNumber'),但没有任何区别。


问题是,$scope.sendPhoneNumber 没有 return 任何东西。尝试

return User.sendPhoneNumber(...

在你的控制器方法中。


此外,如果您只是想在模拟中立即解决 promise,我发现这很好用并且可以节省您设置延迟对象的时间

UserMock = {
  sendPhoneNumber: function(countryCode, phoneNumber){
    return $q.when('foo');
  }
};

也就是说,您可能希望能够控制每个测试中的解析值,这样更有意义...

var scope;
var UserMock;
var SignupPhoneCtrl;
var deferred;

// snip

inject(function($rootScope, $controller, $q) {
    deferred = $q.defer();
    UserMock = {
        sendPhoneNumber: function() {
            return deferred.promise;
        }
    };
});

// snip

it('tests for success', inject(function($rootScope) {
    deferred.resolve('success');

    scope.sendPhoneNumber(...).then(...);

    $rootScope.$apply();
}));

it('tests for failure', inject(function($rootScope) {
    deferred.resolve('not success');

    scope.sendPhoneNumber(...).then(...);

    $rootScope.$apply();
}));