spyOn给出方法不存在错误

Question

我在角度应用程序上运行Karma测试,在测试中我有以下内容:

return inject(function($injector) {
   this.Service = {
      functionWithPromise: function(postdata){
         var deferred = $q.defer();
         deferred.resolve({
            data: {}
          });
          return deferred.promise;
         }
      };
};

和

it('should call the functionWithPromise function when the create function is called', function() {
    res = {}
    this.scope.create(res);
    this.scope.$digest();
    spyOn(Service, "functionWithPromise");
    expect(this.Service.functionWithPromise).toHaveBeenCalled();  
  });

当我运行测试时它会给出这个错误:

functionWithPromise() method does not exist

如何让测试识别functionWithPromise()函数？

Answer 1

想出来,我需要监视this.Service而不是服务,像这样:

spyOn(this.Service, "functionWithPromise");