如何嘲弄与$ promise.then茉莉规格AngularJS $资源

问题描述

我用 $资源来设置一些API调用，虽然测试中，我都采用注射的一般方法 $ Q ，然后做

I use $resource to set up some API calls, and while testing I have adopted the general approach of injecting $qand then doing

mockMyService.doSomethingAsync.andReturnValue（$ q.when（successResponse））

此已经工作了pretty好，但是，我有一个类似如下的方法：

This has been working out pretty well, however, I have a method that looks like the following:

# MyService
MyService.doSomethingAsync(params).$promise.then ->
    $scope.isLoading = false

# MyService Spec
mockMyService =
  doSomethingAsync: jasmine.createSpy('doSomethingAsync')

it 'calls service #doSomethingAsync', ->
  inject ($q) -> mockMyService.doSomethingAsync.and.returnValue($q.when(response))
  controller.methodThatWrapsServiceCall()
  scope.$apply()

  expect(mockMyService.doSomethingAsync).toHaveBeenCalled()

不幸的是上面提到的嘲讽的策略似乎并没有当 $ promise.then 末被链接。我结束工作与以下错误：

and unfortunately the mocking strategy outlined above doesn't seem to work when a $promise.then is chained at the end. I end up with the following error:

TypeError: 'undefined' is not an object (evaluating 'MyService.doSomethingAsync(params).$promise.then')

中的方法简单地用结束doSomethingAsync（）。$承诺通过测试，而无需使用这种嘲讽的战略问题。

Methods that simply end with doSomethingAsync().$promise pass the tests without issues using this mocking strategy.

（其他信息：这是茉莉花测试，因果报应和PhantomJS运行）

(Other info: These are Jasmine tests run with Karma and PhantomJS)

推荐答案

其实，想通了！

我只是改变了我的模拟返回 and.returnValue（{$承诺：$ q.when（响应）}）

I just changed my mock to return and.returnValue( { $promise: $q.when(response) } )

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