How to use testThreadSafety method of org.testcontainers.utility.LazyFutureTest class

Best Testcontainers-java code snippet using org.testcontainers.utility.LazyFutureTest.testThreadSafety

Source:LazyFutureTest.java

...38        assertThrows("Should timeout", TimeoutException.class, () -> lazyFuture.get(10, TimeUnit.MILLISECONDS));39        pass("timeout works");40    }41    @Test(timeout = 5_000)42    public void testThreadSafety() throws Exception {43        final int numOfThreads = 3;44        CountDownLatch latch = new CountDownLatch(numOfThreads);45        AtomicInteger counter = new AtomicInteger();46        Future<Integer> lazyFuture = new LazyFuture<Integer>() {47            @Override48            @SneakyThrows(InterruptedException.class)49            protected Integer resolve() {50                latch.await();51                return counter.incrementAndGet();52            }53        };54        Future<List<Integer>> task = new ForkJoinPool(numOfThreads).submit(() -> {55            return IntStream.rangeClosed(1, numOfThreads).parallel().mapToObj(i -> Futures.getUnchecked(lazyFuture)).collect(toList());56        });...

testThreadSafety

Using AI Code Generation

1public class LazyFutureTest {2    public void testThreadSafety() {3        LazyFuture<String> lazyFuture = new LazyFuture<>(() -> {4            try {5                Thread.sleep(1000);6            } catch (InterruptedException e) {7                e.printStackTrace();8            }9            return "hello";10        });11        Thread t1 = new Thread(() -> {12            try {13                System.out.println("t1: " + lazyFuture.get());14            } catch (InterruptedException | ExecutionException e) {15                e.printStackTrace();16            }17        });18        Thread t2 = new Thread(() -> {19            try {20                System.out.println("t2: " + lazyFuture.get());21            } catch (InterruptedException | ExecutionException e) {22                e.printStackTrace();23            }24        });25        t1.start();26        t2.start();27    }28}

testThreadSafety

Using AI Code Generation

1package org.testcontainers.utility;2import org.junit.Test;3import java.util.concurrent.CountDownLatch;4import java.util.concurrent.ExecutorService;5import java.util.concurrent.Executors;6import java.util.concurrent.atomic.AtomicInteger;7import static org.junit.Assert.assertEquals;8public class LazyFutureTest {9    public void testThreadSafety() throws InterruptedException {10        final int threadCount = 10;11        final int iterationCount = 1000;12        final AtomicInteger counter = new AtomicInteger();13        final ExecutorService executorService = Executors.newFixedThreadPool(threadCount);14        final CountDownLatch countDownLatch = new CountDownLatch(threadCount);15        for (int i = 0; i < threadCount; i++) {16            executorService.execute(() -> {17                for (int j = 0; j < iterationCount; j++) {18                    counter.addAndGet(new LazyFuture<>(() -> 1).get());19                }20                countDownLatch.countDown();21            });22        }23        countDownLatch.await();24        assertEquals(threadCount * iterationCount, counter.get());25    }26}27package org.testcontainers.utility;28import java.util.concurrent.ExecutionException;29import java.util.concurrent.FutureTask;30import java.util.function.Supplier;31public class LazyFuture<T> extends FutureTask<T> {32    private final Supplier<T> supplier;33    public LazyFuture(Supplier<T> supplier) {34        super(() -> supplier.get());35        this.supplier = supplier;36    }37    public T get() {38        if (!isDone()) {39            run();40        }41        try {42            return super.get();43        } catch (InterruptedException | ExecutionException e) {44            throw new RuntimeException("Exception while computing value", e);45        }46    }47}

testThreadSafety

Using AI Code Generation

1import org.testcontainers.containers.GenericContainer;2import org.testcontainers.containers.wait.strategy.Wait;3import org.testcontainers.utility.LazyFutureTest;4public class TestContainer {5    public static void main(String[] args) throws Exception {6        GenericContainer container = new GenericContainer("alpine:3.5")7                .withCommand("sh", "-c", "while true; do sleep 1; done")8                .waitingFor(Wait.forLogMessage(".*", 1));9        container.start();10        LazyFutureTest test = new LazyFutureTest();11        test.testThreadSafety();12    }13}14	at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:22)15	at org.testcontainers.utility.LazyFutureTest.testThreadSafety(LazyFutureTest.java:27)16	at org.testcontainers.utility.LazyFutureTest.lambda$testThreadSafety$0(LazyFutureTest.java:44)17	at java.lang.Thread.run(Thread.java:748)18	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)20	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21	at java.lang.reflect.Method.invoke(Method.java:498)22	at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:20)23	at org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1014)24	at org.testcontainers.containers.GenericContainer.logger(GenericContainer.java:1010)25	at org.testcontainers.containers.GenericContainer.logger(GenericContainer.java:52)26	at org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1014)

testThreadSafety

Using AI Code Generation

1    public void testThreadSafety() throws Exception {2        LazyFutureTest lazyFutureTest = new LazyFutureTest();3        lazyFutureTest.testThreadSafety();4    }5	at com.github.dockerjava.shaded.com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:168)6	at com.github.dockerjava.shaded.com.google.common.util.concurrent.AbstractFuture$TrustedFuture.setException(AbstractFuture.java:106)7	at com.github.dockerjava.shaded.com.google.common.util.concurrent.SettableFuture.setException(SettableFuture.java:68)8	at org.testcontainers.utility.LazyFutureTest$1.run(LazyFutureTest.java:30)9	at java.lang.Thread.run(Thread.java:748)

testThreadSafety

Using AI Code Generation

1    "testThreadSafety"() {2        def lazyFuture = new LazyFuture<String>({3            Thread.sleep(1000)4        })5        def thread1 = new Thread({6            lazyFuture.get()7        })8        def thread2 = new Thread({9            lazyFuture.get()10        })11        thread1.start()12        thread2.start()13        thread1.join()14        thread2.join()15        lazyFuture.get()16        notThrown(Exception)17    }18}

testThreadSafety

Using AI Code Generation

1import org.junit.Test;2import org.testcontainers.utility.LazyFuture;3import java.util.concurrent.CountDownLatch;4import java.util.concurrent.TimeUnit;5import static org.rnorth.visibleassertions.VisibleAssertions.assertEquals;6public class LazyFutureTest {7    public void testThreadSafety() throws InterruptedException {8        final CountDownLatch startLatch = new CountDownLatch(1);9        final CountDownLatch endLatch = new CountDownLatch(2);10        final LazyFuture<String> lazyFuture = new LazyFuture<>(() -> {11            startLatch.await();12            endLatch.countDown();13            return "Hello";14        });15        Thread thread1 = new Thread(() -> {16            assertEquals("Hello", lazyFuture.get());17        });18        Thread thread2 = new Thread(() -> {19            assertEquals("Hello", lazyFuture.get());20        });21        thread1.start();22        thread2.start();23        startLatch.countDown();24        endLatch.await(10, TimeUnit.SECONDS);25    }26}27	at org.rnorth.visibleassertions.VisibleAssertions.fail(VisibleAssertions.java:44)28	at org.rnorth.visibleassertions.VisibleAssertions.assertEquals(VisibleAssertions.java:89)29	at org.rnorth.visibleassertions.VisibleAssertions.assertEquals(VisibleAssertions.java:75)30	at org.testcontainers.utility.LazyFutureTest.lambda$testThreadSafety$0(LazyFutureTest.java:25)31	at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:31)32	at org.testcontainers.utility.LazyFutureTest.lambda$testThreadSafety$1(LazyFutureTest.java:29)33	at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:31)34	at org.testcontainers.utility.LazyFutureTest.testThreadSafety(LazyFutureTest.java:35)35	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)36	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)37	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)38	at java.lang.reflect.Method.invoke(Method.java:498)39	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)40	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

testThreadSafety

Using AI Code Generation

1import org.testcontainers.utility.LazyFutureTest;2public class LazyFutureTestCode {3    public static void main(String[] args) throws Exception {4        LazyFutureTest test = new LazyFutureTest();5        test.testThreadSafety();6    }7}

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