android - WorkManagerTestInitHelper を使用すると、WorkManager が作業の再試行を完了できなくなります。

Question

私が使用する場合：

    WorkManagerTestInitHelper.initializeTestWorkManager(context);
    WorkManager workManager =  WorkManager.getInstance();

WorkManager インスタンスを取得しようとすると、WorkManager は再試行に失敗します。最も簡単なテストを提示します。

public class WorkManagerTest {



   Context context;


@Before
public void setUp() throws Exception {

    context = InstrumentationRegistry.getTargetContext();


}






@Test
public   void testWorker1(){
    Constraints constraints = new Constraints.Builder()
                .build();
    OneTimeWorkRequest.Builder updateorderworkerBuilder =
            new OneTimeWorkRequest.Builder(TestWorker1.class)
                    .setConstraints(constraints)
                    //MIN_BACKOFF_MILLIS == 10000
                    .setBackoffCriteria(BackoffPolicy.LINEAR,10000, TimeUnit.MILLISECONDS);




    OneTimeWorkRequest workRequest = updateorderworkerBuilder.build();
    WorkManager workManager =  WorkManager.getInstance();
    workManager.enqueue(workRequest);

    try {
        Thread.sleep(50000);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }


}


@Test
public   void testWorker2(){
    Constraints constraints = new Constraints.Builder()
                           .build();
    OneTimeWorkRequest.Builder updateorderworkerBuilder =
            new OneTimeWorkRequest.Builder(TestWorker2.class)
                    .setConstraints(constraints)
                    //MIN_BACKOFF_MILLIS == 10000
                    .setBackoffCriteria(BackoffPolicy.LINEAR,10000, TimeUnit.MILLISECONDS);




    OneTimeWorkRequest workRequest = updateorderworkerBuilder.build();
    WorkManagerTestInitHelper.initializeTestWorkManager(context);
    WorkManager workManager =  WorkManager.getInstance();
    workManager.enqueue(workRequest);

    try {
        Thread.sleep(50000);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }


}


public static class TestWorker1 extends Worker {

    /**
     * Override this method to do your actual background processing.
     *
     * @return The result of the work, corresponding to a {@link Result} value.  If a
     * different value is returned, the result shall be defaulted to
     * {@link Result#FAILURE}.
     */
    @NonNull
    @Override
    public Result doWork() {
        Log.d("TEST_WORKER", "inside doWork()1");
        return Result.RETRY;
    }
}


public static class TestWorker2 extends Worker {

    /**
     * Override this method to do your actual background processing.
     *
     * @return The result of the work, corresponding to a {@link Result} value.  If a
     * different value is returned, the result shall be defaulted to
     * {@link Result#FAILURE}.
     */
    @NonNull
    @Override
    public Result doWork() {
        Log.d("TEST_WORKER", "inside doWork()2");
        return Result.RETRY;
    }
}

}

Logcat には次のように表示されます。

07-22 23:34:25.184 5346-5388/com.billst.app.debug D/TEST_WORKER: inside doWork()1
07-22 23:34:30.178 5346-5391/com.billst.app.debug D/TEST_WORKER: inside doWork()1
07-22 23:34:40.238 5346-5388/com.billst.app.debug D/TEST_WORKER: inside doWork()1
07-22 23:35:00.300 5346-5391/com.billst.app.debug D/TEST_WORKER: inside doWork()1
07-22 23:35:15.130 5346-5372/com.billst.app.debug D/TEST_WORKER: inside doWork()2

2 つのテストを個別に実行しても、同じ結果が得られます。WorkManagerTestInitHelperを使用すると 、WorkManager が作業の再試行を完了できないことがわかります。

WorkManagerTestInitHelperを正しく使用していますか?