TestMu Conference is Back! Future of Testing + AI LambdaTest G2 Announcement

How to use setUp method of org.mockitousage.bugs.ConcurrentModificationExceptionOnMultiThreadedVerificationTest class

Best Mockito code snippet using org.mockitousage.bugs.ConcurrentModificationExceptionOnMultiThreadedVerificationTest.setUp

Source:MockitoTest.java

...25	ClassLoader classLoader = null;26	File dataDir = null;27	28	@Before29	public void setUp(){30		classLoader = getClass().getClassLoader();31		dataDir = new File(classLoader.getResource("data_projects").getPath());32	}33	34	35	36	public List<String> getParticularIssueLibs(File f ){37		if(!f.exists())38			throw new IllegalAccessError(f.getAbsolutePath() + " not found");39		List<String> otherlibs = new ArrayList<>();40		if(f.isFile())41			return otherlibs;42		for(File folder : f.listFiles()){43			if(folder.getName().endsWith(".jar")){...

Source:ConcurrentModificationExceptionOnMultiThreadedVerificationTest.java

...23    static final int INTERVAL_MILLIS = 10;24    ITarget target = Mockito.mock(ITarget.class);25    ExecutorService fixedThreadPool;26    @Before27    public void setUp() {28        target = Mockito.mock(ITarget.class);29        fixedThreadPool = Executors.newFixedThreadPool(nThreads);30    }31    @Test32    public void shouldSuccessfullyVerifyConcurrentInvocationsWithTimeout() throws Exception {33        int potentialOverhead = 1000; // Leave 1000ms extra before timing out as leeway for test overheads34        int expectedMaxTestLength = TIMES * INTERVAL_MILLIS + potentialOverhead;35        reset(target);36        startInvocations();37        verify(target, timeout(expectedMaxTestLength).times(TIMES * nThreads)).targetMethod("arg");38        verifyNoMoreInteractions(target);39    }40    private void startInvocations() throws InterruptedException,41            ExecutionException {...

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import org.junit.Test;3import org.mockito.Mockito;4import org.mockitousage.IMethods;5import java.util.concurrent.ExecutorService;6import java.util.concurrent.Executors;7import java.util.concurrent.TimeUnit;8import static org.mockito.Mockito.times;9import static org.mockito.Mockito.verify;10public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {11    public void test() throws InterruptedException {12        ExecutorService executorService = Executors.newCachedThreadPool();13        IMethods mock = Mockito.mock(IMethods.class);14        for (int i = 0; i < 100; i++) {15            executorService.submit(new Runnable() {16                public void run() {17                    mock.simpleMethod();18                }19            });20        }21        executorService.shutdown();22        executorService.awaitTermination(1, TimeUnit.MINUTES);23        verify(mock, times(100)).simpleMethod();24    }25}26package org.mockitousage.bugs;27import org.junit.Test;28import org.mockito.Mockito;29import org.mockitousage.IMethods;30import java.util.concurrent.ExecutorService;31import java.util.concurrent.Executors;32import java.util.concurrent.TimeUnit;33import static org.mockito.Mockito.times;34import static org.mockito.Mockito.verify;35public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {36    public void test() throws InterruptedException {37        ExecutorService executorService = Executors.newCachedThreadPool();38        IMethods mock = Mockito.mock(IMethods.class);39        for (int i = 0; i < 100; i++) {40            executorService.submit(new Runnable() {41                public void run() {42                    mock.simpleMethod();43                }44            });45        }46        executorService.shutdown();47        executorService.awaitTermination(1, TimeUnit.MINUTES);48        verify(mock, times(100)).simpleMethod();49    }50}51package org.mockitousage.bugs;52import org.junit.Test;53import org.mockito.Mockito;54import org.mockitousage.IMethods;55import java.util.concurrent.ExecutorService;56import java.util.concurrent.Executors;57import java.util.concurrent.TimeUnit;58import static org.mockito.Mockito.times;59import static org.mockito.Mockito.verify;60public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {61    public void test() throws InterruptedException {62        ExecutorService executorService = Executors.newCachedThreadPool();63        IMethods mock = Mockito.mock(IMethods.class);64        for (int

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import org.junit.Test;3import org.mockito.exceptions.base.MockitoException;4import org.mockitousage.IMethods;5import org.mockitoutil.TestBase;6import java.util.concurrent.CountDownLatch;7import java.util.concurrent.ExecutorService;8import java.util.concurrent.Executors;9import java.util.concurrent.TimeUnit;10import static org.mockito.Mockito.mock;11import static org.mockito.Mockito.verify;12public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest extends TestBase {13    public void shouldNotThrowConcurrentModificationException() throws InterruptedException {14        final IMethods mock = mock(IMethods.class);15        ExecutorService executorService = Executors.newFixedThreadPool(2);16        final CountDownLatch startLatch = new CountDownLatch(1);17        final CountDownLatch endLatch = new CountDownLatch(2);18        executorService.execute(new Runnable() {19            public void run() {20                try {21                    startLatch.await();22                    verify(mock).simpleMethod();23                } catch (InterruptedException e) {24                    throw new RuntimeException(e);25                } finally {26                    endLatch.countDown();27                }28            }29        });30        executorService.execute(new Runnable() {31            public void run() {32                try {33                    startLatch.await();34                    verify(mock).simpleMethod();35                } catch (InterruptedException e) {36                    throw new RuntimeException(e);37                } finally {38                    endLatch.countDown();39                }40            }41        });42        startLatch.countDown();43        endLatch.await();44        executorService.shutdown();45        executorService.awaitTermination(1, TimeUnit.MINUTES);46    }47    public void shouldNotThrowConcurrentModificationExceptionInMultiThreadedTest() throws InterruptedException {48        final IMethods mock = mock(IMethods.class);49        ExecutorService executorService = Executors.newFixedThreadPool(2);50        final CountDownLatch startLatch = new CountDownLatch(1);51        final CountDownLatch endLatch = new CountDownLatch(2);52        executorService.execute(new Runnable() {53            public void run() {54                try {55                    startLatch.await();56                    mock.simpleMethod();57                } catch (InterruptedException e) {58                    throw new RuntimeException(e);59                } finally {60                    endLatch.countDown();61                }62            }63        });64        executorService.execute(new Runnable() {65            public void run() {66                try {67                    startLatch.await();68                    mock.simpleMethod();69                } catch (InterruptedException e) {

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import org.junit.Test;3import org.mockito.Mockito;4import org.mockitousage.IMethods;5import org.mockitousage.IMethodsImpl;6public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {7    public void shouldNotFail() throws Exception {8        IMethods mock = Mockito.mock(IMethods.class);9        Mockito.when(mock.simpleMethod(Mockito.anyInt())).thenReturn("foo");10        IMethodsImpl impl = new IMethodsImpl();11        impl.simpleMethod(1);12        impl.simpleMethod(2);13        impl.simpleMethod(3);14        impl.simpleMethod(4);15        impl.simpleMethod(5);16        impl.simpleMethod(6);17        impl.simpleMethod(7);18        impl.simpleMethod(8);19        impl.simpleMethod(9);20        impl.simpleMethod(10);21        impl.simpleMethod(11);22        impl.simpleMethod(12);23        impl.simpleMethod(13);24        impl.simpleMethod(14);25        impl.simpleMethod(15);26        impl.simpleMethod(16);27        impl.simpleMethod(17);28        impl.simpleMethod(18);29        impl.simpleMethod(19);30        impl.simpleMethod(20);31        impl.simpleMethod(21);32        impl.simpleMethod(22);33        impl.simpleMethod(23);34        impl.simpleMethod(24);35        impl.simpleMethod(25);36        impl.simpleMethod(26);37        impl.simpleMethod(27);38        impl.simpleMethod(28);39        impl.simpleMethod(29);40        impl.simpleMethod(30);41        impl.simpleMethod(31);42        impl.simpleMethod(32);43        impl.simpleMethod(33);44        impl.simpleMethod(34);45        impl.simpleMethod(35);46        impl.simpleMethod(36);47        impl.simpleMethod(37);48        impl.simpleMethod(38);49        impl.simpleMethod(39);50        impl.simpleMethod(40);51        impl.simpleMethod(41);52        impl.simpleMethod(42);53        impl.simpleMethod(43);54        impl.simpleMethod(44);55        impl.simpleMethod(45);56        impl.simpleMethod(46);57        impl.simpleMethod(47);58        impl.simpleMethod(48);59        impl.simpleMethod(49);60        impl.simpleMethod(50);61        impl.simpleMethod(51);62        impl.simpleMethod(52);63        impl.simpleMethod(53);64        impl.simpleMethod(54);65        impl.simpleMethod(55);66        impl.simpleMethod(56);67        impl.simpleMethod(

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import org.junit.Test;3import org.mockito.Mockito;4import java.util.List;5import static org.mockito.Mockito.mock;6import static org.mockito.Mockito.verify;7public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {8    private List mock = mock(List.class);9    public void test() throws Exception {10        verify(mock, Mockito.timeout(1000).atLeast(1)).size();11    }12}13package org.mockitousage.bugs;14import org.junit.Test;15import org.mockito.Mockito;16import java.util.List;17import static org.mockito.Mockito.mock;18import static org.mockito.Mockito.verify;19public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {20    private List mock = mock(List.class);21    public void test() throws Exception {22        verify(mock, Mockito.timeout(1000).atLeast(1)).size();23    }24}25package org.mockitousage.bugs;26import org.junit.Test;27import org.mockito.Mockito;28import java.util.List;29import static org.mockito.Mockito.mock;30import static org.mockito.Mockito.verify;31public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {32    private List mock = mock(List.class);33    public void test() throws Exception {34        verify(mock, Mockito.timeout(1000).atLeast(1)).size();35    }36}37package org.mockitousage.bugs;38import org.junit.Test;39import org.mockito.Mockito;40import java.util.List;41import static org.mockito.Mockito.mock;42import static org.mockito.Mockito.verify;43public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {44    private List mock = mock(List.class);45    public void test() throws Exception {46        verify(mock, Mockito.timeout(1000).atLeast(1)).size();47    }48}49package org.mockitousage.bugs;50import org

setUp

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.junit.runners.Parameterized;4import java.util.Arrays;5import java.util.Collection;6import java.util.concurrent.ExecutorService;7import java.util.concurrent.Executors;8import java.util.concurrent.TimeUnit;9import static org.mockito.Mockito.mock;10import static org.mockito.Mockito.verify;11import static org.mockito.Mockito.when;12import static org.mockito.Mockito.withSettings;13@RunWith(Parameterized.class)14public class TestClass {15    private static final int THREADS_COUNT = 10;16    private static final int ITERATIONS = 1000;17    private final Class<?> clazz;18    public TestClass(Class<?> clazz) {19        this.clazz = clazz;20    }21    @Parameterized.Parameters(name = "{index}: {0}")22    public static Collection<Object[]> data() {23        return Arrays.asList(new Object[][]{24                {ConcurrentModificationExceptionOnMultiThreadedVerificationTest.class}25        });26    }27    public void test() throws Exception {28        ExecutorService executorService = Executors.newFixedThreadPool(THREADS_COUNT);29        for (int i = 0; i < THREADS_COUNT; i++) {30            executorService.execute(new Runnable() {31                public void run() {32                    for (int i = 0; i < ITERATIONS; i++) {33                        try {34                            testMethod();35                        } catch (Exception e) {36                            throw new RuntimeException(e);37                        }38                    }39                }40            });41        }42        executorService.shutdown();43        executorService.awaitTermination(10, TimeUnit.MINUTES);44    }45    private void testMethod() throws Exception {46        clazz.getMethod("setUp").invoke(null);47        Object o = mock(Object.class, withSettings().stubOnly());48        when(o.toString()).thenReturn("test");49        verify(o).toString();50    }51}

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.Mock;5import org.mockito.junit.MockitoJUnitRunner;6import org.mockito.quality.Strictness;7import java.util.concurrent.ExecutorService;8import java.util.concurrent.Executors;9import java.util.concurrent.TimeUnit;10import static org.mockito.Mockito.times;11import static org.mockito.Mockito.verify;12@RunWith(MockitoJUnitRunner.class)13public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {14    private Runnable runnable;15    public void test() throws Exception {16        ExecutorService executorService = Executors.newFixedThreadPool(4);17        for (int i = 0; i < 1000; i++) {18            executorService.execute(runnable);19        }20        executorService.shutdown();21        executorService.awaitTermination(5, TimeUnit.SECONDS);22        verify(runnable, times(1000)).run();23    }24}25package org.mockitousage.bugs;26import org.junit.Test;27import org.junit.runner.RunWith;28import org.mockito.Mock;29import org.mockito.junit.MockitoJUnitRunner;30import org.mockito.quality.Strictness;31import java.util.concurrent.ExecutorService;32import java.util.concurrent.Executors;33import java.util.concurrent.TimeUnit;34import static org.mockito.Mockito.times;35import static org.mockito.Mockito.verify;36@RunWith(MockitoJUnitRunner.class)37public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {38    private Runnable runnable;39    public void test() throws Exception {40        ExecutorService executorService = Executors.newFixedThreadPool(4);41        for (int i = 0; i < 1000; i++) {42            executorService.execute(runnable);43        }44        executorService.shutdown();45        executorService.awaitTermination(5, TimeUnit.SECONDS);46        verify(runnable, times(1000)).run();47    }48}49package org.mockitousage.bugs;50import org.junit.Test;51import org.junit.runner.RunWith;52import org.mockito.Mock;53import org.mockito.junit.MockitoJUnitRunner;54import org.mockito.quality.Strictness;55import java.util.concurrent.ExecutorService;56import java.util.concurrent.Executors;57import java.util.concurrent.TimeUnit;58import static org.mockito.Mockito.times;

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import java.util.concurrent.CountDownLatch;3import org.junit.Test;4import org.mockito.Mock;5import org.mockito.Mockito;6import org.mockito.internal.util.concurrent.DetachedThreadLocal;7import org.mockito.internal.util.concurrent.WeakConcurrentSet;8import org.mockitousage.IMethods;9import org.mockitoutil.TestBase;10public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest extends TestBase {11    private IMethods mock;12    public void shouldNotThrowConcurrentModificationException() throws InterruptedException {13        final int numberOfThreads = 100;14        final int numberOfInvocations = 100;15        final CountDownLatch start = new CountDownLatch(1);16        final CountDownLatch end = new CountDownLatch(numberOfThreads);17        for (int i = 0; i < numberOfThreads; i++) {18            new Thread(new Runnable() {19                public void run() {20                    try {21                        start.await();22                        for (int i = 0; i < numberOfInvocations; i++) {23                            mock.simpleMethod();24                        }25                    } catch (InterruptedException e) {26                        throw new RuntimeException(e);27                    } finally {28                        end.countDown();29                    }30                }31            }).start();32        }33        start.countDown();34        end.await();35        Mockito.verify(mock, Mockito.times(numberOfInvocations * numberOfThreads)).simpleMethod();36    }37    protected void setUp() {38        DetachedThreadLocal.INSTANCE.set(new WeakConcurrentSet<Object>());39    }40}

setUp

Using AI Code Generation

1package org.mockitousage.bugs;2import org.junit.Before;3import org.junit.Test;4import org.mockito.Mockito;5import org.mockitousage.IMethods;6import java.util.concurrent.CountDownLatch;7import java.util.concurrent.ExecutorService;8import java.util.concurrent.Executors;9import java.util.concurrent.TimeUnit;10import static org.junit.Assert.fail;11import static org.mockito.Mockito.*;12public class ConcurrentModificationExceptionOnMultiThreadedVerificationTest {13    private IMethods mock;14    public void setUp() {15        mock = mock(IMethods.class);16    }17    public void testConcurrentModificationExceptionOnMultiThreadedVerification() throws Exception {18        final CountDownLatch startLatch = new CountDownLatch(1);19        ExecutorService executorService = Executors.newFixedThreadPool(2);20        executorService.submit(new Runnable() {21            public void run() {22                try {23                    startLatch.await();24                } catch (InterruptedException e) {25                    throw new RuntimeException(e);26                }27                mock.simpleMethod();28            }29        });30        executorService.submit(new Runnable() {31            public void run() {32                try {33                    startLatch.await();34                } catch (InterruptedException e) {35                    throw new RuntimeException(e);36                }37                mock.simpleMethod();38            }39        });40        startLatch.countDown();41        executorService.shutdown();42        executorService.awaitTermination(1, TimeUnit.SECONDS);43        verify(mock, times(2)).simpleMethod();44    }45    public void testConcurrentModificationExceptionOnMultiThreadedVerificationWithUnfinishedStubbing() throws Exception {46        final CountDownLatch startLatch = new CountDownLatch(1);47        ExecutorService executorService = Executors.newFixedThreadPool(2);48        executorService.submit(new Runnable() {49            public void run() {50                try {51                    startLatch.await();52                } catch (InterruptedException e) {53                    throw new RuntimeException(e);54                }

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.