Question

我已经成功创建了一个自定义espresso测试运行器，如下所示：

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wundeclared-selector"
[self performSelector:@selector(jsq_updateCollectionViewInsets)];
#pragma clang diagnostic pop

我的应用程序的网络层是用rxjava2编写的，所以我需要一种方法来将espresso调度与rxjava链接起来，所以我选择使用Rx2Idler

但我遇到的问题是，当我运行测试时，我收到以下错误：

public class PomeloTestRunner extends AndroidJUnitRunner {

    @Override
    public void onCreate(Bundle arguments) {
        RxJavaPlugins.setInitComputationSchedulerHandler(
                Rx2Idler.create("RxJava 2.x Computation Scheduler"));

        RxJavaPlugins.setInitIoSchedulerHandler(Rx2Idler.create("RxJava 2.x Computation Scheduler"));
        RxJavaPlugins.setInitNewThreadSchedulerHandler(Rx2Idler.create("RxJava 2.x Computation Scheduler"));
        RxJavaPlugins.setInitSingleSchedulerHandler(Rx2Idler.create("RxJava 2.x Computation Scheduler"));

        super.onCreate(arguments);
    }
}

这是我的实际测试，如果它有任何重要性。测试失败，但是如果我删除了调度程序覆盖，则它适用于sleep：

FATAL EXCEPTION: RxCachedThreadScheduler-1
                                                   Process: com.mobile.pomelo.labs, PID: 11611
                                                   java.lang.NullPointerException: Attempt to invoke interface method 'void android.support.test.espresso.IdlingResource$ResourceCallback.onTransitionToIdle()' on a null object reference
                                                       at com.squareup.rx2.idler.DelegatingIdlingResourceScheduler.stopWork(DelegatingIdlingResourceScheduler.java:96)
                                                       at com.squareup.rx2.idler.DelegatingIdlingResourceScheduler$ScheduledWork.run(DelegatingIdlingResourceScheduler.java:142)
                                                       at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:61)
                                                       at io.reactivex.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:52)
                                                       at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                                                       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
                                                       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
                                                       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
                                                       at java.lang.Thread.run(Thread.java:818)

另请注意，我的所有rxjava调用如下所示：

    @RunWith(AndroidJUnit4.class)

public class AuthenticationActivityTest {

    @Before
    public void setUp() throws Exception {
        mIntentsTestRule.getActivity().sharedPrefRepo.clearAll();
    }


    @Rule
    public IntentsTestRule<AuthenticationActivity> mIntentsTestRule =
            new IntentsTestRule<AuthenticationActivity>(AuthenticationActivity.class) {
                @Override
                protected Intent getActivityIntent() {
                    Context targetContext = InstrumentationRegistry.getInstrumentation()
                            .getTargetContext();
                    Intent result = new Intent(targetContext, AuthenticationActivity.class);
                    Bundle b = new Bundle();
                    b.putSerializable("action", AuthenticationActivity.LoginActions.LOGIN);

                    result.putExtras(b);
                    return result;
                }
            };



    @Test
    public void signupWithFacebook() {

        final Intent resultData = new Intent();
        resultData.putExtra("com.facebook.LoginFragment:Result", LoginClientCreator.createResult());
        intending(hasComponent(FacebookActivity.class.getName()))
                .respondWith(new Instrumentation.ActivityResult(Activity.RESULT_OK, resultData));

        // click signup fb button
        onView(withId(R.id.fb_login_button))
                .perform(click());

        // check facebook intent was hit
        intended(hasComponent(FacebookActivity.class.getName()), times(1));

        try {
            Thread.sleep(14000); // i dont want this to sleep,  i would rather the espresso idle sync work with rxjava2
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        ViewInteraction appCompatTextView = onView(allOf(withText("COLLECTIONS"), isDisplayed()));
        appCompatTextView.perform(click());
    }
}

更新：我想知道它的firebase网络调用是否同步空闲。这些调用没有使用rxjava，所以它们不能由Rx2Idler处理吗？

Answer 1

我尝试了各种选项，例如在Test Runner类的template <typename T> struct S { private: T t; void print_helper (std::true_type) // T is std::string { std::cout << "string: " << t << std::endl; } void print_helper (std::false_type) // T isn't std::string { std::cout << t << std::endl; } public: S (T const & t0) : t{t0} { } void print () { print_helper(std::is_same<T, std::string>{}); } };中设置RxJava插件，或在所有资源上注册ResourceCallback。

但是对我有用的解决方案是在onCreate()

之后设置RxJavaPlugins

请在此处检查代码

super.onStart()

espresso自定义TestRunner与RxJava2 - 使用Rx2Idler获取空指针异常

1 个答案: