如何使用sinon.js模拟框架在回调函数中测试代码？JSFiddle:http://jsfiddle.net/ruslans/CE5e2/varservice=function(){return{getData:function(callback){returncallback([1,2,3,4,5]);}}};varmodel=function(svc){return{data:[],init:function(){varself=this;svc.getData(function(serviceData){self.data=serviceData;//***testthisli