Best Mockito code snippet using org.mockitousage.bugs.MultithreadedStubbingHalfManualTest.synchronizedList
Source:MultithreadedStubbingHalfManualTest.java
...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 {...
synchronizedList
Using AI Code Generation
1 public void shouldSynchronizedList() throws Exception {2 List<String> list = new ArrayList<String>();3 List<String> synchronizedList = Collections.synchronizedList(list);4 synchronizedList.add("one");5 synchronizedList.add("two");6 synchronizedList.add("three");7 List<String> mock = mock(List.class);8 when(mock.size()).thenReturn(synchronizedList.size());9 when(mock.get(0)).thenReturn(synchronizedList.get(0));10 when(mock.get(1)).thenReturn(synchronizedList.get(1));11 when(mock.get(2)).thenReturn(synchronizedList.get(2));12 assertEquals(3, mock.size());13 assertEquals("one", mock.get(0));14 assertEquals("two", mock.get(1));15 assertEquals("three", mock.get(2));16 }17 public void shouldSynchronizedListWithAnswer() throws Exception {18 List<String> list = new ArrayList<String>();19 List<String> synchronizedList = Collections.synchronizedList(list);20 synchronizedList.add("one");21 synchronizedList.add("two");22 synchronizedList.add("three");23 List<String> mock = mock(List.class);24 when(mock.size()).thenAnswer(new Answer<Integer>() {25 public Integer answer(InvocationOnMock invocation) throws Throwable {26 return synchronizedList.size();27 }28 });29 when(mock.get(0)).thenAnswer(new Answer<String>() {30 public String answer(InvocationOnMock invocation) throws Throwable {31 return synchronizedList.get(0);32 }33 });34 when(mock.get(1)).thenAnswer(new Answer<String>() {35 public String answer(InvocationOnMock invocation) throws Throwable {36 return synchronizedList.get(1);37 }38 });39 when(mock.get(2)).thenAnswer(new Answer<String>() {40 public String answer(InvocationOnMock invocation) throws Throwable {41 return synchronizedList.get(2);42 }43 });44 assertEquals(3, mock.size());45 assertEquals("one", mock.get(0));46 assertEquals("two", mock.get(1));47 assertEquals("three", mock.get(2));48 }49 public void shouldSynchronizedListWithAnswerAndMatchers() throws Exception {50 List<String> list = new ArrayList<String>();51 List<String> synchronizedList = Collections.synchronizedList(list);52 synchronizedList.add("one");53 synchronizedList.add("
synchronizedList
Using AI Code Generation
1 public void shouldAllowStubbingInMultipleThreads() throws Exception {2 final List<String> list = new ArrayList<String>();3 List<String> synchronizedList = Collections.synchronizedList(list);4 final List<String> spy = spy(synchronizedList);5 doReturn("foo").when(spy).get(0);6 doReturn("bar").when(spy).get(1);7 doReturn("baz").when(spy).get(2);8 Thread t1 = new Thread(new Runnable() {9 public void run() {10 spy.get(0);11 }12 });13 Thread t2 = new Thread(new Runnable() {14 public void run() {15 spy.get(1);16 }17 });18 Thread t3 = new Thread(new Runnable() {19 public void run() {20 spy.get(2);21 }22 });23 t1.start();24 t2.start();25 t3.start();26 t1.join();27 t2.join();28 t3.join();29 assertEquals("foo", spy.get(0));30 assertEquals("bar", spy.get(1));31 assertEquals("baz", spy.get(2));32 }33}34 public void shouldAllowStubbingInMultipleThreads() throws Exception {35 final List<String> list = new ArrayList<String>();36 List<String> synchronizedList = Collections.synchronizedList(list);37 final List<String> spy = spy(synchronizedList);38 doReturn("foo").when(spy).get(0);39 doReturn("bar").when(spy).get(1);40 doReturn("baz").when(spy).get
synchronizedList
Using AI Code Generation
1 public void shouldStubConcurrently() throws InterruptedException {2 final int THREADS = 10;3 final int STUBS = 10000;4 final List<String> list = synchronizedList(new ArrayList<String>());5 final List<String> mock = mock(List.class);6 when(mock.get(anyInt())).thenAnswer(new Answer<String>() {7 public String answer(InvocationOnMock invocation) throws Throwable {8 return list.get((Integer) invocation.getArguments()[0]);9 }10 });11 Thread[] threads = new Thread[THREADS];12 for (int i = 0; i < THREADS; i++) {13 threads[i] = new Thread(new Runnable() {14 public void run() {15 for (int i = 0; i < STUBS; i++) {16 list.add("foo");17 mock.get(i);18 }19 }20 });21 }22 for (Thread thread : threads) {23 thread.start();24 }25 for (Thread thread : threads) {26 thread.join();27 }28 }29}
synchronizedList
Using AI Code Generation
1public void shouldStubConcurrently() throws Throwable {2 ExecutorService executorService = Executors.newFixedThreadPool(10);3 final List<Throwable> exceptions = Collections.synchronizedList(new ArrayList<Throwable>());4 final List<Callable<Object>> tasks = new ArrayList<Callable<Object>>();5 for (int i = 0; i < 10; i++) {6 tasks.add(new StubbingTask(exceptions));7 }8 executorService.invokeAll(tasks);9 executorService.shutdown();10 if (!exceptions.isEmpty()) {11 throw exceptions.get(0);12 }13}14class StubbingTask implements Callable<Object> {15 private final List<Throwable> exceptions;16 public StubbingTask(List<Throwable> exceptions) {17 this.exceptions = exceptions;18 }19 public Object call() throws Exception {20 try {21 List mock = mock(List.class);22 when(mock.get(0)).thenReturn("one");23 mock.get(0);24 } catch (Throwable t) {25 exceptions.add(t);26 }27 return null;28 }29}30Argument(s) are different! Wanted:31list.get(0);32-> at org.mockitousage.bugs.MultithreadedStubbingHalfManualTest$StubbingTask.call(MultithreadedStubbingHalfManualTest.java:52)33list.get(0);34-> at org.mockitousage.bugs.MultithreadedStubbingHalfManualTest$StubbingTask.call(MultithreadedStubbingHalfManualTest.java:52)35at org.junit.Assert.assertEquals(Assert.java:115)36at org.junit.Assert.assertEquals(Assert.java:144)37at org.mockito.internal.verification.VerificationOverTimeImpl.verify(VerificationOverTimeImpl.java:50)38at org.mockito.internal.verification.VerificationOverTimeImpl.verify(VerificationOverTimeImpl.java:38)39at org.mockito.internal.verification.VerificationModeFactory$7.verify(VerificationModeFactory.java:200)40at org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:91)41at org.mockito.internal.handler.NullResultGuardian.handle(NullResultGuardian.java:29)42at org.mockito.internal.handler.InvocationNotifierHandler.handle(InvocationNotifierHandler.java:32)43at org.mockito.internal.creation.cglib.MethodInterceptorFilter.intercept(MethodInterceptorFilter.java:59)
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