How to use withLookingForStuckThread method of org.junit.rules.Timeout.Builder class

Best junit code snippet using org.junit.rules.Timeout.Builder.withLookingForStuckThread

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...55 */​56 public static RuleChain createRuleChain(TestRule gateway, K3poRule robot, long timeout, TimeUnit timeUnit) {57 TestRule trace = new MethodExecutionTrace();58 TestRule timeoutRule = new DisableOnDebug(Timeout.builder().withTimeout(timeout, timeUnit)59 .withLookingForStuckThread(true).build());60 return RuleChain.outerRule(trace).around(gateway).around(robot).around(timeoutRule);61 }62 /​**63 * Creates a rule (chain) out of a gateway or other rule, adding extra rules as follows:<ol>64 * <li> a timeout rule65 * <li> a rule to print console messages at the start and end of each test method and print trace level66 * log messages on test failure.67 * </​ol>68 * @param rule Rule to startup and stop gateway69 * @param timeout The maximum allowed time duration of each test (including the gateway rule)70 * @param timeUnit The unit for the timeout71 * @return A TestRule which should be the only public @Rule in our robot tests72 */​73 public static RuleChain createRuleChain(TestRule gateway, long timeout, TimeUnit timeUnit) {74 TestRule trace = new MethodExecutionTrace();75 TestRule timeoutRule = new DisableOnDebug(Timeout.builder().withTimeout(timeout, timeUnit)76 .withLookingForStuckThread(true).build());77 return RuleChain.outerRule(trace).around(timeoutRule).around(gateway);78 }79 /​**80 * Creates a rule chain containing the following rules:<ol>81 * <li> a timeout rule82 * <li> a rule to print console messages at the start and end of each test method and print trace level83 * log messages on test failure.84 * </​ol>85 * @param timeout The maximum allowed time duration of the test86 * @param timeUnit The unit for the timeout87 * @return88 */​89 public static RuleChain createRuleChain(long timeout, TimeUnit timeUnit) {90 TestRule timeoutRule = timeoutRule(timeout, timeUnit);91 TestRule trace = new MethodExecutionTrace();92 return RuleChain.outerRule(trace).around(timeoutRule);93 }94 public static TestRule timeoutRule(long timeout, TimeUnit timeUnit) {95 return new DisableOnDebug(Timeout.builder().withTimeout(timeout, timeUnit)96 .withLookingForStuckThread(true).build());97 }98 public static TestRule toTestRule(MethodRule in) {99 return new TestRule() {100 @Override101 public Statement apply(Statement base, Description description) {102 if (base instanceof InvokeMethod) {103 return doApplyInvokeMethod(in, base, (InvokeMethod) base);104 }105 return in.apply(base, null, description);106 }107 private Statement doApplyInvokeMethod(108 MethodRule in,109 Statement base,110 InvokeMethod invokeMethod) {...

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...143/​* */​ 144/​* */​ 145/​* */​ 146/​* */​ protected Statement createFailOnTimeoutStatement(Statement statement) throws Exception {147/​* 147 */​ return (Statement)FailOnTimeout.builder().withTimeout(this.timeout, this.timeUnit).withLookingForStuckThread(this.lookForStuckThread).build(statement);148/​* */​ }149/​* */​ 150/​* */​ 151/​* */​ 152/​* */​ 153/​* */​ public Statement apply(Statement base, Description description) {154/​* */​ try {155/​* 155 */​ return createFailOnTimeoutStatement(base);156/​* 156 */​ } catch (Exception e) {157/​* 157 */​ return new Statement() {158/​* */​ public void evaluate() throws Throwable {159/​* 159 */​ throw new RuntimeException("Invalid parameters for Timeout", e);160/​* */​ }161/​* */​ };162/​* */​ } 163/​* */​ }164/​* */​ 165/​* */​ 166/​* */​ 167/​* */​ public static class Builder168/​* */​ {169/​* */​ private boolean lookForStuckThread = false;170/​* */​ 171/​* */​ 172/​* 172 */​ private long timeout = 0L;173/​* 173 */​ private TimeUnit timeUnit = TimeUnit.SECONDS;174/​* */​ 175/​* */​ 176/​* */​ 177/​* */​ 178/​* */​ 179/​* */​ 180/​* */​ 181/​* */​ 182/​* */​ 183/​* */​ 184/​* */​ 185/​* */​ 186/​* */​ 187/​* */​ 188/​* */​ 189/​* */​ 190/​* */​ 191/​* */​ 192/​* */​ 193/​* */​ public Builder withTimeout(long timeout, TimeUnit unit) {194/​* 194 */​ this.timeout = timeout;195/​* 195 */​ this.timeUnit = unit;196/​* 196 */​ return this;197/​* */​ }198/​* */​ 199/​* */​ protected long getTimeout() {200/​* 200 */​ return this.timeout;201/​* */​ }202/​* */​ 203/​* */​ protected TimeUnit getTimeUnit() {204/​* 204 */​ return this.timeUnit;205/​* */​ }206/​* */​ 207/​* */​ 208/​* */​ 209/​* */​ 210/​* */​ 211/​* */​ 212/​* */​ 213/​* */​ 214/​* */​ 215/​* */​ 216/​* */​ public Builder withLookingForStuckThread(boolean enable) {217/​* 217 */​ this.lookForStuckThread = enable;218/​* 218 */​ return this;219/​* */​ }220/​* */​ 221/​* */​ protected boolean getLookingForStuckThread() {222/​* 222 */​ return this.lookForStuckThread;223/​* */​ }224/​* */​ 225/​* */​ 226/​* */​ 227/​* */​ 228/​* */​ 229/​* */​ public Timeout build() {230/​* 230 */​ return new Timeout(this);...

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...52 super.withTimeout(timeout, unit);53 return this;54 }55 @Override56 public Builder withLookingForStuckThread(final boolean enable) {57 super.withLookingForStuckThread(enable);58 return this;59 }60 @Override61 public SerializableTimeout build() {62 return new SerializableTimeout(this);63 }64 }65 /​**66 * Serialization proxy for {@code SerializableTimeout}.67 */​68 private static class SerializationProxy implements Serializable {69 private final long timeout;70 private final TimeUnit timeUnit;71 private final boolean lookForStuckThread;72 SerializationProxy(final SerializableTimeout instance) {73 this.timeout = (long) readField(Timeout.class, instance, FIELD_TIMEOUT);74 this.timeUnit = (TimeUnit) readField(Timeout.class, instance, FIELD_TIME_UNIT);75 this.lookForStuckThread =76 (boolean) readField(Timeout.class, instance, FIELD_LOOK_FOR_STUCK_THREAD);77 }78 private Object readResolve() {79 return new SerializableTimeout.Builder().withTimeout(this.timeout, this.timeUnit)80 .withLookingForStuckThread(this.lookForStuckThread).build();81 }82 }83}...

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...42 protected CategoryBasedTimeout(Builder builder) {43 super(builder);44 }45 public static Timeout forClass(Class<?> clazz) {46 return CategoryBasedTimeout.builder().withTimeout(clazz).withLookingForStuckThread(true)47 .build();48 }49 public static Builder builder() {50 return new CategoryBasedTimeout.Builder();51 }52 public static class Builder extends Timeout.Builder {53 public Timeout.Builder withTimeout(Class<?> clazz) {54 Annotation annotation = clazz.getAnnotation(Category.class);55 if (annotation != null) {56 Category category = (Category)annotation;57 for (Class<?> c: category.value()) {58 if (c == SmallTests.class) {59 /​/​ See SmallTests. Supposed to run 15 seconds.60 return withTimeout(30, TimeUnit.SECONDS);...

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...26@Category({SmallTests.class})27public class TestTimeout {28 @Rule public final TestRule timeout = CategoryBasedTimeout.builder()29 .withTimeout(this.getClass())30 .withLookingForStuckThread(true)31 .build();32 @Test33 public void run1() throws InterruptedException {34 Thread.sleep(100);35 }36 /​**37 * Enable to check if timeout works.38 * Can't enable as it waits 30seconds and expected doesn't do Exception catching39 */​40 @Ignore @Test41 public void infiniteLoop() {42 while (true) {}43 }44}...

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2 protected org.junit.rules.Timeout$Builder();3 public org.junit.rules.Timeout$Builder withTimeout(long, java.util.concurrent.TimeUnit);4 protected long getTimeout();5 protected java.util.concurrent.TimeUnit getTimeUnit();6 public org.junit.rules.Timeout$Builder withLookingForStuckThread(boolean);7 protected boolean getLookingForStuckThread();8 public org.junit.rules.Timeout build();9}...

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withLookingForStuckThread

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1import org.junit.Test;2import org.junit.rules.Timeout;3import java.util.concurrent.TimeUnit;4public class TimeoutTest {5 public void test() {6 Timeout timeout = Timeout.builder()7 .withLookingForStuckThread(true)8 .withTimeout(1, TimeUnit.SECONDS)9 .build();10 }11}12[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ junit --- 13[INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ junit --- 14[ERROR] test(TimeoutTest) Time elapsed: 1.001 s <<< ERROR!15 at java.base/​java.lang.Object.wait(Native Method)16 at java.base/​java.lang.Object.wait(Object.java:328)17 at java.base/​java.lang.Thread.join(Thread.java:1030)18 at java.base/​java.lang.Thread.join(Thread.java:1000)19 at org.junit.rules.Timeout$1.call(Timeout.java:115)20 at org.junit.rules.Timeout$1.call(Timeout.java:112)21 at java.base/​java.util.concurrent.FutureTask.run(FutureTask.java:264)22 at java.base/​java.lang.Thread.run(Thread.java:832)

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withLookingForStuckThread

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1 public void testWithLookingForStuckThread() throws InterruptedException {2 Timeout timeout = Timeout.seconds(1).withLookingForStuckThread(true);3 Thread thread = new Thread() {4 public void run() {5 try {6 Thread.sleep(10000);7 } catch (InterruptedException e) {8 e.printStackTrace();9 }10 }11 };12 thread.start();13 try {14 timeout.apply(new Statement() {15 public void evaluate() throws Throwable {16 Thread.sleep(10000);17 }18 }, null).evaluate();19 } catch (Exception e) {20 System.out.println(e);21 }22 }23}24 at java.lang.Thread.sleep(Native Method)25 at org.junit.rules.TimeoutTest.testWithLookingForStuckThread(TimeoutTest.java:53)26 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)27 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)28 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)29 at java.lang.reflect.Method.invoke(Method.java:498)30 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)31 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)32 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)33 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)34 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)35 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)36 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)37 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)38 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)39 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)40 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)41 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)42 at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

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withLookingForStuckThread

Using AI Code Generation

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1import static org.junit.Assert.fail;2import org.junit.Test;3import org.junit.rules.Timeout;4import org.junit.runner.Description;5import org.junit.runners.model.Statement;6public class JunitTimeoutExample {7 public void testWithTimeout() {8 Timeout timeout = new Timeout(5);9 Statement statement = timeout.apply(new Statement() {10 public void evaluate() throws Throwable {11 System.out.println("Hello");12 }13 }, Description.EMPTY);14 try {15 statement.evaluate();16 } catch (Throwable e) {17 e.printStackTrace();18 }19 }20 public void testWithTimeoutBuilder() {21 Timeout timeout = Timeout.builder()22 .withTimeout(5, TimeUnit.SECONDS)23 .withLookingForStuckThread(true)24 .build();25 Statement statement = timeout.apply(new Statement() {26 public void evaluate() throws Throwable {27 System.out.println("Hello");28 }29 }, Description.EMPTY);30 try {31 statement.evaluate();32 } catch (Throwable e) {33 e.printStackTrace();34 }35 }36}37 at org.junit.rules.Timeout$1.evaluate(Timeout.java:98)38 at org.junit.rules.RunRules.evaluate(RunRules.java:20)39 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)40 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)41 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)42 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)43 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)44 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)45 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)46 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)47 at org.junit.runners.ParentRunner.run(ParentRunner.java:363)48 at org.junit.runner.JUnitCore.run(JUnitCore.java:137)49 at org.junit.runner.JUnitCore.run(JUnitCore.java:115)50 at org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:43)51 at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)52 at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)

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withLookingForStuckThread

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1public class LookingForStuckThreads {2 public static void main(String[] args) {3 Timeout timeout = Timeout.builder()4 .withLookingForStuckThread(true)5 .withTimeout(3, TimeUnit.SECONDS)6 .build();7 public TestRule rule = timeout;8 public void test() throws InterruptedException {9 Thread.sleep(10000);10 }11 }12}13 at java.base/​java.lang.Thread.sleep(Native Method)14 at java.base/​java.lang.Thread.sleep(Thread.java:340)15 at java.base/​java.util.concurrent.TimeUnit.sleep(TimeUnit.java:439)16 at com.baeldung.junit.timeout.LookingForStuckThreads.test(LookingForStuckThreads.java:30)17 at java.base/​jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)18 at java.base/​jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)19 at java.base/​jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)20 at java.base/​java.lang.reflect.Method.invoke(Method.java:566)21 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)22 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)23 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)24 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)25 at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)26 at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)27 at java.base/​java.util.concurrent.FutureTask.run(FutureTask.java:264)28 at java.base/​java.lang.Thread.run(Thread.java:832)29 at java.base/​java.lang.Thread.getAllStackTraces(Thread.java:1595)30 at org.junit.rules.Timeout$1.run(Timeout.java:120)31 at java.base/​java.util.TimerThread.mainLoop(Timer.java:556)32 at java.base/​java.util.TimerThread.run(Timer.java:506)

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withLookingForStuckThread

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1public Timeout globalTimeout = Timeout.lookingForStuckThread().withTimeout(10, TimeUnit.SECONDS);2public Timeout globalTimeout = Timeout.lookingForStuckThread().withTimeout(10, TimeUnit.SECONDS);3public Timeout globalTimeout = Timeout.lookingForStuckThread().withTimeout(10, TimeUnit.SECONDS).withLookingForStuckThread(true);4public Timeout globalTimeout = Timeout.lookingForStuckThread().withTimeout(10, TimeUnit.SECONDS).withLookingForStuckThread(true);5public Timeout globalTimeout = Timeout.lookingForStuckThread().withTimeout(10, TimeUnit.SECONDS).withLookingForStuckThread(true);6public Timeout globalTimeout = Timeout.lookingForStuckThread().withTimeout(10, TimeUnit.SECONDS).withLookingForStuckThread(true);

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1package org.junit.rules;2import java.util.*;3import java.util.concurrent.*;4import java.util.concurrent.atomic.*;5import java.lang.management.*;6import java.lang.reflect.*;7import java.io.*;8import java.nio.*;9import java.nio.channels.*;10import java.nio.charset.*;11import java.nio.file.*;12import java.nio.file.attribute.*;13import java.nio.file.spi.*;14import java.security.*;15import java.security.cert.*;16import java.security.cert.Certificate;17import java.security.cert.CertificateFactory;18import java.security.cert.X509Certificate;19import java.security.interfaces.*;20import java.text.*;21import java.util.*;22import java.util.concurrent.*;23import java.util.concurrent.atomic.*;24import java.util.concurrent.locks.*;25import java.util.jar.*;26import java.util.jar.JarEntry;27import java.util.jar.JarFile;28import java.util.jar.JarInputStream;29import java.util.jar.JarOutputStream;30import java.util.logging.*;31import java.util.regex.*;32import java.util.regex.Pattern;33import java.util.zip.*;34import java.util.zip.ZipEntry;35import java.util.zip.ZipFile;36import java.util.zip.ZipInputStream;37import java.util.zip.ZipOutputStream;

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Had the same message. I had to remove the Run/Debug configuration.

In my case, I ran the unit test as a local test before. After that I moved my test to the androidTest package and tried to run it again. Android Studio remembered the last run configuration so it tried to run it again as a local unit test which produced the same error.

After removing the config and running the test again it generated a new configuration and worked.

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https://stackoverflow.com/questions/39282282/class-not-found-empty-test-suite-in-intellij

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