CODEWITHSUNDEEP
androidandroid-testingandroid-workmanager
billst
billst

Reputation: 659

The use of WorkManagerTestInitHelper prevents the WorkManager from completing the retry of the work

When I use:

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

to get the WorkManager instance, the WorkManager fail to achieve retry. I will present the simplest test:

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;
    }
}

}

In the Logcat I see:

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

I take the same results even when I execute the 2 tests independently. We see that the use of WorkManagerTestInitHelper prevents the WorkManager from completing the retry of the work.

Do I use WorkManagerTestInitHelper correctly?

Upvotes: 3

Views: 1383

Answers (1)

Rahul
Rahul

Reputation: 21134

You cannot simulate retries in test mode. This is intentional because you should be testing your Worker and not testing WorkManager. You cannot use WorkManagerTestInitHelper for this. If you want to test that your Worker returns a Result.retry() then you could also use the new TestWorkerBuilder<> and the TestListenableWorkerBuilder APIs.

Here is an example. https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/work/workmanager-testing/src/androidTest/java/androidx/work/testing/TestWorkerBuilderTest.kt

Upvotes: 1

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