Jasmine和angularjs,不能存根$ httpBackend用于服务

Question

在查询$ httpBackend后我似乎无法返回预期的结果,我不知道测试有什么问题.你能看一下这个失败的最小例子吗？

链接演示

http://jsfiddle.net/paos/kTNF5/

茉莉花输出

query() Expected [ ] to equal [ { hello : 'world' } ].

码

依赖资源

<script src="https://raw.github.com/pivotal/jasmine/master/lib/jasmine-core/jasmine.js"></script>
<script src="https://raw.github.com/pivotal/jasmine/master/lib/jasmine-core/jasmine-html.js"></script>

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.2/angular.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.2/angular-resource.min.js"></script>
<script src="http://code.angularjs.org/1.0.1/angular-mocks-1.0.1.js"></script>

测试javascript

var mod = angular.module('mod', ['ngResource']);                                                                                                                               

mod.factory('Brief', function($resource) {
   var Brief = $resource('http://some_test/:id');                                                                                                                              
   return Brief;                                                                                                                                                               
});                                                                                                                                                                            

beforeEach(function() {
    module('mod');                                                                                                                                                             

    inject(function($injector) {
        resource = $injector.get('$resource');                                                                                                                                 
        $httpBackend = $injector.get('$httpBackend');                                                                                                                          
        Brief = $injector.get('Brief');                                                                                                                                        
    });                                                                                                                                                                        

});                                                                                                                                                                            

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

describe("Brief", function() {
    it("query()", function() {
        var getRequest = 'http://some_test';                                                                                                                                   
        var fakeGetResponse = [{
            "hello": "world"}];                                                                                                                                                

        $httpBackend.when('GET', getRequest).respond(fakeGetResponse);                                                                                                         

        var briefs = Brief.query();                                                                                                                                            
        expect(briefs).toEqual(fakeGetResponse);                                                                                                                               
        $httpBackend.flush();                                                                                                                                                  
    });                                                                                                                                                                        
});                                                                                                                                                                            


// KICK OFF JASMINE
var jasmineEnv = jasmine.getEnv();                                                                                                                                             
var trivialReporter = new jasmine.TrivialReporter();                                                                                                                           

jasmineEnv.addReporter(trivialReporter);                                                                                                                                       

jasmineEnv.specFilter = function(spec) {
    return trivialReporter.specFilter(spec);                                                                                                                                   
};                                                                                                                                                                             

jasmineEnv.execute();?               

谢谢!

Answer 1

你几乎就在那里,但你的测试中仍有2个问题:

• 在$httpBackend被冲洗之前,期望得到了验证.它$httpBackend.flush();模拟了传入的响应
• 在您的期望中,您正在比较对象实例(而不是它们的值),但AngularJS $resource将创建一个新数组,如/sf/answers/837655871/中所述.您需要比较对象的值而不是引用.这样做的一种方法是:expect(angular.equals(briefs, fakeGetResponse)).toBeTruthy();

最后这里有一个测试传递的jsFiddle:http://jsfiddle.net/VFqFU/