angularjs单元测试错误与角度缓存模块

Question

   describe("unit test", function () {
        it('should have a GuestsAndRoomsController controller', function (){
            expect(guestsAndRoomsController).not.toBe(null);
        });
        it('should have default editPackageInclusions flag', function(){
            expect(guestsAndRoomsController).toEqual(null);

        });
    })

模块与angular-cache有依赖关系，当我运行此单元测试时，会弹出如下错误：

  

defaultCache已经存在！在node_modules / angular-cache / dist / angular-cache.js

中