无法在jasmine测试用例中访问范围变量

时间:2015-10-10 17:25:51

标签: javascript angularjs jasmine

我的模块中定义了一个控制器,如下所示,

myTestApp.controller("LoginController", function($scope,$http,$location) {

$scope.submitForm = function(){ 

    var userEmail = $scope.user.email;
    var userPassword = $scope.user.password;

    $http({
        url:'api/login/',
        headers: {'Content-Type': 'application/json'},
        method:'POST',
        data:{
            username:userEmail,
            password:userPassword
        }})
        .success(function(data){
            $scope.loginResult = data;
        });
     };   
});

我正在尝试使用httpBackend编写用于模拟HTTP调用的测试用例。

这是我的jasmine测试代码:

 describe('make HTTP mock call', function() {

var scope, httpBackend, http, controller;

beforeEach(module('myTestApp'));

describe('with httpBackend', function() {

    beforeEach(inject(function ($rootScope, $controller, $httpBackend, $http) {
        scope = $rootScope.$new();
        httpBackend = $httpBackend;
        http = $http;
        controller = $controller('LoginController', {$scope : scope} );
        httpBackend.when("POST", "api/login/",{'username':'test@gmail.com', 'password':'test'}, function(headers) {
           return {
            'Content-Type': 'application/json',
           };
        }).respond(200);
    }));

    afterEach(inject(function ($httpBackend){
        $httpBackend.verifyNoOutstandingExpectation();
        $httpBackend.verifyNoOutstandingRequest();
    }));

    it('to check if user is valid', inject(function ($http) {   

        var expectedResponse = { success: true };

        httpBackend.expectPOST('api/login/', {
            "username": "test@gmail.com",
            "password": "test"
        }, function(headers){
            return headers['Content-Type'] === 'application/json';
        }).respond(function(method, url, data, headers, params){
            return [200, {}, {}];
        });         

        //actual HTTP call
        $http({
        url:'api/login/',
        headers: {'Content-Type': 'application/json'},
        method:'POST',
        data:{
            username:"test@gmail.com",
            password:"test"
        }});

        //flush response
        httpBackend.flush();
        expect(scope.loginResult).toEqual(expectedResponse);
    }));    
  });

});

但是,当我运行测试用例时,我收到以下错误

  

预期未定义为等于Object({success:true})。

我想将HTTP调用的响应数据与expectedResponse进行比较,如果两者相等则测试应该通过。

但是,我无法从我的测试用例中访问$scope变量loginResult。谁能告诉我我在这里做错了什么?

有人可以描述使用Jasmine模拟HTTP调用的最佳方法吗?

1 个答案:

答案 0 :(得分:2)

只有在调用函数submitForm时才会填充您的登录数据。因此,在测试中,在执​​行flush()之前调用该函数。

更新: 确保您已定义

$scope.user={email :'test@gmail.com,password:'test'} 

在测试的第一行(就在it('to check if user is valid', inject(function ($http) {之后)