Angularjs 单元测试中的动态$httpBackend响应

我创建了一个模拟后端并允许内容分页的服务：

angular.module('testedApp')
    .service('mockedResponses', function mockedResponses() {

   var _mediaResponse = {"total":84,"media":[...], groups: {}, keywords: {}};


    return {
        getMediaResponse: function(method, url, data, headers){
            var mediaResponse = angular.copy(_mediaResponse),
                start = headers.skip_current || 0,
                end = headers.limit || 8;

            mediaResponse['media'] = _mediaResponse['media'].splice(start, end);
            return mediaResponse;
        }
    }
});

测试：

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我得到的不是预期的数据（媒体），而是作用域上的“null”，尝试访问null的属性会引发异常。

好的，找到了解决方案，根据，函数的响应应该是以下stascure[（str）StatusCode，（str，obj）response，（obj）Headers]的数组

以下代码工作：

angular.module('testedApp')
    .service('mockedResponses', function mockedResponses() {

   var _mediaResponse = {"total":84,"media":[...], groups: {}, keywords: {}};


    return {
        getMediaResponse: function(method, url, data, headers){
            var mediaResponse = angular.copy(_mediaResponse),
                start = headers.skip_current || 0,
                end = headers.limit || 8;

            mediaResponse['media'] = _mediaResponse['media'].splice(start, end);
            return arguments.length ? ['200', mediaResponse, {}] : mediaResponse;
        }
    }
});

angular.module('testedApp')
    .service('mockedResponses', function mockedResponses() {

   var _mediaResponse = {"total":84,"media":[...], groups: {}, keywords: {}};


    return {
        getMediaResponse: function(method, url, data, headers){
            var mediaResponse = angular.copy(_mediaResponse),
                start = headers.skip_current || 0,
                end = headers.limit || 8;

            mediaResponse['media'] = _mediaResponse['media'].splice(start, end);
            return arguments.length ? ['200', mediaResponse, {}] : mediaResponse;
        }
    }
});