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How to use MultithreadedStubbingHalfManualTest class of org.mockitousage.bugs package

Best Mockito code snippet using org.mockitousage.bugs.MultithreadedStubbingHalfManualTest

Source:MultithreadedStubbingHalfManualTest.java

...12import org.junit.Ignore;13import org.junit.Test;14import org.mockito.Mockito;15@Ignore16public class MultithreadedStubbingHalfManualTest {17    /**18     * Class with two methods, one of them is repeatedly mocked while another is repeatedly called.19     */20    public interface ToMock {21        Integer getValue(Integer param);22        List<Integer> getValues(Integer param);23    }24    /**25     * Thread pool for concurrent invocations.26     */27    private Executor executor;28    private List<Exception> exceptions = Collections.synchronizedList(new LinkedList<Exception>());29    // this problem shows at 4 out of 5 executions30    // it is not strictly a bug because Mockito does not support simultanous stubbing (see FAQ)31    // however I decided to synchronize some calls in order to make the exceptions nicer32    @Test33    public void tryToRevealTheProblem() {34        MultithreadedStubbingHalfManualTest.ToMock toMock = Mockito.mock(MultithreadedStubbingHalfManualTest.ToMock.class);35        for (int i = 0; i < 100; i++) {36            int j = i % 11;37            // Repeated mocking38            Mockito.when(toMock.getValue(i)).thenReturn(j);39            // TODO make it also showing errors for doReturn()40            // doReturn(j).when(toMock).getValue(i);41            while (true) {42                try {43                    // Scheduling invocation44                    this.executor.execute(getConflictingRunnable(toMock));45                    break;46                } catch (RejectedExecutionException ex) {47                    Assert.fail();48                }...

MultithreadedStubbingHalfManualTest

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.runners.MockitoJUnitRunner;4import java.util.concurrent.ExecutorService;5import java.util.concurrent.Executors;6import java.util.concurrent.TimeUnit;7import static org.mockito.Mockito.*;8@RunWith(MockitoJUnitRunner.class)9public class MultithreadedStubbingHalfManualTest {10    public void shouldStubConcurrently() throws Exception {11        ExecutorService executorService = Executors.newFixedThreadPool(10);12        final MultithreadedStubbingHalfManualTest mock = mock(MultithreadedStubbingHalfManualTest.class);13        for (int i = 0; i < 100; i++) {14            executorService.execute(new Runnable() {15                public void run() {16                    when(mock.toString()).thenReturn("foo");17                }18            });19        }20        executorService.shutdown();21        executorService.awaitTermination(1, TimeUnit.SECONDS);22    }23}24JVM name           : Java HotSpot(TM) 64-Bit Server VM

MultithreadedStubbingHalfManualTest

Using AI Code Generation

1    at org.junit.Assert.assertEquals(Assert.java:115)2    at org.junit.Assert.assertEquals(Assert.java:144)3    at org.mockitousage.bugs.MultithreadedStubbingHalfManualTest.shouldStubInThread(MultithreadedStubbingHalfManualTest.java:36)4public class MultithreadedStubbingHalfManualTest {5    private static final String NAME = "name";6    private static final String SURNAME = "surname";7    public void shouldStubInThread() throws InterruptedException {8        final Person person = mock(Person.class);9        final ExecutorService executor = Executors.newFixedThreadPool(1);10        final CountDownLatch latch = new CountDownLatch(1);11        executor.submit(new Runnable() {12            public void run() {13                when(person.getName()).thenReturn(NAME);14                latch.countDown();15            }16        });17        latch.await();18        assertEquals(person.getName(), NAME);19    }20    interface Person {21        String getName();22    }23}24    at org.junit.Assert.assertEquals(Assert.java:115)25    at org.junit.Assert.assertEquals(Assert.java:144)26    at org.mockitousage.bugs.MultithreadedStubbingHalfManualTest.shouldStubInThread(MultithreadedStubbingHalfManualTest.java:36)

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