我如何做一個 sinon 存根來替換承諾以便響應被嘲笑？

Question

我希望整個諾言都被扼殺。

我正在使用帶有 javascript、jasemine 和 karma 的 angular js 版本 1。

這是我的代碼：

appcontrolmod.controller('loginCtrl', ['$rootScope', '$scope', 'personService', 
    function ($rootScope, $scope personService) {   

    $scope.getUser= function(){

        //I want to stub this to return an expected response?
        personService.getUser().then((response) => {

                //I want to stub the response of this promise?
                console.log(response);

                if(response){
                    //update model
                }else{
                    //show error message
                }

        });

    }

    $scope.getUser();
}]);

提前致謝！

Answer 1

我會說那個地方監視方法，然后從那個間諜那里返回一些假數據

//place spy over it & return fakedata, it should be in global before each
var getUserSpy = spyOn(personService, 'getUser').and.callFake(function() {
  return {
    then: function(callback) { return callback({Id: 1, Name: 'Something'}); }
  };
});

it('should show success when modal login returns success response', function() {
    scope.getUser();
    //do assert by calling expect statement
    expect(personService.getUser).toHaveBeenCalled();
    expect(scope.user.Id).toBe(1); //assuming scope.user has filled with response user data
});