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我试着写一些单元测试像一个服务:angular2单元测试
export class Service1 {
...
public constructor(service2: Service2, service3: Service3) {}
...
}
其中服务2包含反过来,服务3:
export class Service2 {
...
public constructor(service3: Service3, stringa: string) {}
...
}
我开始测试 在真正可怕的方式,如:
it("check XXX",() => {
let service3: Service3= new Service3();
let service2: service2= new service2(service3, "stringa");
let service1: Service1 = new Service1(service2, service3);
expect(X).toEqual(X);
});
,但现在,我使用beforeEachProviders什么HAPP恩与此:
beforeEachProviders(() => {
return [
provide(Service2, { useclass: MockService2}),
provide(Service3, { useclass: MockService3}),
provide('stringa', { useValue: "stringa"}),
Service1
];
});
it('check XXX ', inject(
[Service2, Service3], (service2: Service2, service3: Service3) => {
expect(true).toEqual(true);
}));
是:
Failed: No provider for String! (Service2-> String).
能someboby帮助我吗?
在此先感谢。
我已经在构造函数中使用了@Inject装饰器,但不是在模拟服务中!真的非常感谢你! – AntuJitsu