如何使用Retrofit 2.0和新的MockRetrofit类模拟服务？

如何使用Retrofit 2.0和新的MockRetrofit类模拟服务？

假设接口定义如下：

public interface MyService {    @GET("/name")    rx.Observable<String> name();}

通话将被转发到

MyServiceMock

使用

BehaviorDelegate

。将

BehaviorDelegate

适用

NetworkBehavior

于由模拟产生的反应。请注意，下面的模拟实现将

BehaviorDelegate

用作构造函数参数，并使用它返回响应。

public class MyServiceMock implements MyService {    private final BehaviorDelegate<MyService> delegate;    public MyServiceMock(BehaviorDelegate<MyService> delegate) {        this.delegate = delegate;    }    public Observable<String> name() {        return delegate.returningResponse("test").name();    }}

使用模拟服务的测试示例如下所示：

public class MyServiceTest {    private final NetworkBehavior behavior = NetworkBehavior.create();    private final rx.observers.TestSubscriber<String> testSubscriber = TestSubscriber.create();    private MyService mockService;    @Before    public void setUp() throws Exception {        Retrofit retrofit = new Retrofit.Builder()     .addCallAdapterFactory(RxJavaCallAdapterFactory.create())     .baseUrl("http://example.com").build();        MockRetrofit mockRetrofit = new MockRetrofit.Builder(retrofit)     .networkBehavior(behavior).build();        final BehaviorDelegate<MyService> delegate = mockRetrofit.create(MyService.class);        mockService = new MyServiceMock(delegate);    }    @Test    public void testSuccessResponse() throws Exception {        givenNetworkFailurePercentIs(0);        mockService.name().subscribe(testSubscriber);        testSubscriber.assertValue("test");        testSubscriber.assertCompleted();    }    @Test    public void testFailureResponse() throws Exception {        givenNetworkFailurePercentIs(100);        mockService.name().subscribe(testSubscriber);        testSubscriber.assertNoValues();        testSubscriber.assertError(IOException.class);    }    private void givenNetworkFailurePercentIs(int failurePercent) {        behavior.setDelay(0, MILLISECONDS);        behavior.setVariancePercent(0);        behavior.setFailurePercent(failurePercent);    }}