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How to use refInstance method of org.mockitoinline.bugs.SelfSpyReferenceMemoryLeakTest class

Best Mockito code snippet using org.mockitoinline.bugs.SelfSpyReferenceMemoryLeakTest.refInstance

Source:SelfSpyReferenceMemoryLeakTest.java

...10    @Test11    public void no_memory_leak_when_spy_holds_reference_to_self() {12        for (int i = 0; i < 100; ++i) {13            final SelfSpyReferenceMemoryLeakTest.DeepRefSelfClass instance = Mockito.spy(new SelfSpyReferenceMemoryLeakTest.DeepRefSelfClass());14            instance.refInstance(instance);15            clearInlineMocks();16        }17    }18    private static class DeepRefSelfClass {19        private final SelfSpyReferenceMemoryLeakTest.DeepRefSelfClass[] array = new SelfSpyReferenceMemoryLeakTest.DeepRefSelfClass[1];20        private final int[] largeArray = new int[SelfSpyReferenceMemoryLeakTest.ARRAY_LENGTH];21        private void refInstance(SelfSpyReferenceMemoryLeakTest.DeepRefSelfClass instance) {22            array[0] = instance;23        }24    }25}...

refInstance

Using AI Code Generation

1package org.mockitoinline.bugs;2import static org.mockito.Mockito.spy;3import static org.mockito.Mockito.when;4import java.lang.ref.WeakReference;5import java.util.ArrayList;6import java.util.List;7import java.util.concurrent.ExecutorService;8import java.util.concurrent.Executors;9import java.util.concurrent.ThreadFactory;10import java.util.concurrent.TimeUnit;11import java.util.concurrent.atomic.AtomicInteger;12import java.util.stream.IntStream;13import org.junit.jupiter.api.Test;14public class SelfSpyReferenceMemoryLeakTest {15    private static final int THREADS = 100;16    private static final int ITERATIONS = 1000;17    public void testLeak() throws InterruptedException {18        ExecutorService executorService = Executors.newFixedThreadPool(THREADS, new ThreadFactory() {19            private final AtomicInteger threadNumber = new AtomicInteger(1);20            public Thread newThread(Runnable r) {21                Thread t = new Thread(r, "SelfSpyReferenceMemoryLeakTest-" + threadNumber.getAndIncrement());22                t.setDaemon(true);23                return t;24            }25        });26        List<WeakReference<Leak>> weakReferences = new ArrayList<>();27        IntStream.range(0, ITERATIONS).forEach(i -> {28            executorService.submit(() -> {29                Leak leak = spy(Leak.class);30                when(leak.refInstance()).thenReturn(leak);31                weakReferences.add(new WeakReference<>(leak));32            });33        });34        executorService.shutdown();35        executorService.awaitTermination(1, TimeUnit.MINUTES);36    }37    private static class Leak {38        public Leak refInstance() {39            return this;40        }41    }42}

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