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How to use Interface RunnerScheduler class of org.junit.runners.model package

Best junit code snippet using org.junit.runners.model.Interface RunnerScheduler

Source:ParallelInterface.java

1package pers.rdara.parets;2import java.lang.annotation.ElementType;3import java.lang.annotation.Inherited;4import java.lang.annotation.Retention;5import java.lang.annotation.RetentionPolicy;6import java.lang.annotation.Target;7import java.util.concurrent.ExecutorService;8import java.util.concurrent.Executors;9import java.util.concurrent.TimeUnit;10import org.junit.internal.AssumptionViolatedException;11import org.junit.internal.runners.model.EachTestNotifier;12import org.junit.runner.Description;13import org.junit.runner.notification.RunNotifier;14import org.junit.runners.model.InitializationError;15import org.junit.runners.model.RunnerScheduler;16import org.junit.runners.model.Statement;17import org.slf4j.Logger;18import org.slf4j.LoggerFactory;19/*20 ParallelInterface is more kind of super class that has common definition/implementation21 for both the ParallelRunner and ParameterizedParallelRunner classes.22 As multiple inheritance is not supported by Java, chosen an interface and used newly introduced "default"23 and making this interface to behave more like trait in scala.24 */25public interface ParallelInterface {26	String JUNIT_PARALLEL_THREDS_PROPERTY = "junit.parallel.threads";27	String DEFAULT_JUNIT_PARALLEL_THREDS_PROPERTY = "8";28	String JUNIT_WAITTIME_FOR_TERMINATION = "junit.waittime.for.termination";29	String DEFAULT_JUNIT_WAITTIME_FOR_TERMINATION = "10"; //Minutes30	String JUNIT_FAILED_ATTEMPTS_PROPERTY = "junit.failed.attempts";31	String DEFAULT_JUNIT_FAILED_ATTEMPTS_PROPERTY = "1";32    Logger LOGGER = LoggerFactory.getLogger(ParallelInterface.class);33	34	int failedAttempts = 1;35	36	int getFailedAttempts();37	38	@Retention(RetentionPolicy.RUNTIME)39    @Target(ElementType.TYPE)40    @Inherited41    @interface ParallelThreads {42        /**43         * @return the junit.parallel.threads size44         */45        int value() default 8;46    }47	48	@Retention(RetentionPolicy.RUNTIME)49    @Target(ElementType.TYPE)50    @Inherited51    @interface WaitTimeForTermination {52        /**53         * @return the junit.waittime.for.termination value in minutes54         */55        int value() default 10;56    }57	@Retention(RetentionPolicy.RUNTIME)58    @Target(ElementType.TYPE)59    @Inherited60    @interface FailedAttempts {61        /**62         * @return the junit.failed.attempts size63         */64        int value() default 1;65    }66	//User defined annotation, System property and then default value.67	default int getParallelThreadsSize(Class<?> klass) throws InitializationError {68        ParallelThreads annotationPT = klass.getAnnotation(ParallelThreads.class);69        if (annotationPT == null) {70        	String threads = System.getProperty(JUNIT_PARALLEL_THREDS_PROPERTY, DEFAULT_JUNIT_PARALLEL_THREDS_PROPERTY);71        	return Integer.parseInt(threads);72        } else {73        	return annotationPT.value();74        }75    }76	77	//WaitTime for termination in minutes. User defined annotation, System property and then default value78	default int getWaitTimeForTermination(Class<?> klass) throws InitializationError {79		WaitTimeForTermination annotationWaitTime = klass.getAnnotation(WaitTimeForTermination.class);80        if (annotationWaitTime == null) {81        	String threads = System.getProperty(JUNIT_WAITTIME_FOR_TERMINATION, DEFAULT_JUNIT_WAITTIME_FOR_TERMINATION);82        	return Integer.parseInt(threads);83        } else {84        	return annotationWaitTime.value();85        }86    }87		88	89	//Number of times a failed test should repeat. User defined annotation, System property and then default value90	default int getFailedAttempts(Class<?> klass) throws InitializationError {91		FailedAttempts annotationFailedAttempts = klass.getAnnotation(FailedAttempts.class);92        if (annotationFailedAttempts == null) {93        	String threads = System.getProperty(JUNIT_FAILED_ATTEMPTS_PROPERTY, DEFAULT_JUNIT_FAILED_ATTEMPTS_PROPERTY);94        	return Integer.parseInt(threads);95        } else {96        	return annotationFailedAttempts.value();97        }98    }99	100    //Scheduler that provides a thread pool with configured number of parallel threads101    class ThreadPoolScheduler implements RunnerScheduler102    {103        private ExecutorService executor; 104        private int waitTime = 10;105        106        public ThreadPoolScheduler(int numThreads, int waitTime)107        {108        	this.waitTime = waitTime;109            executor = Executors.newFixedThreadPool(numThreads);110        }111        112        @Override113        public void finished()114        {115            executor.shutdown();116            try117            {118                executor.awaitTermination(waitTime, TimeUnit.MINUTES);119            } catch (InterruptedException exc) {120                throw new RuntimeException(exc);121            }122        }123        @Override124        public void schedule(Runnable childStatement)125        {126            executor.submit(childStatement);127        }128    }129    130    /**131     * Runs a {@link Statement} that represents a leaf (aka atomic) test.132     */133    default void runTestUnit(Statement statement, Description description,134            RunNotifier notifier) {135        EachTestNotifier eachNotifier = new EachTestNotifier(notifier, description);136        eachNotifier.fireTestStarted();137        try {138            statement.evaluate();139        } catch (AssumptionViolatedException e) {140            eachNotifier.addFailedAssumption(e);141        } catch (Throwable e) {142            retry(eachNotifier, statement, description, e);143        } finally {144            eachNotifier.fireTestFinished();145        }146    }147    //Retry tests until they are successful or exhausted the configured failed attempts.148    default void retry(EachTestNotifier notifier, Statement statement, Description description, Throwable currentThrowable) {149        Throwable caughtThrowable = currentThrowable;150        151        for (int i = 0; i < getFailedAttempts(); i++) {152            try {153            	LOGGER.info("Repeating (" + (i+1) + ") time(s) for the failed test: " + description.getDisplayName());154                statement.evaluate();155                return;156            } catch (Throwable t) {157                caughtThrowable = t;158            }159        }160        notifier.addFailure(caughtThrowable);161    }162    163}...

Source:ConjureSubfolderRunner.java

1/*2 * (c) Copyright 2018 Palantir Technologies Inc. All rights reserved.3 *4 * Licensed under the Apache License, Version 2.0 (the "License");5 * you may not use this file except in compliance with the License.6 * You may obtain a copy of the License at7 *8 *     http://www.apache.org/licenses/LICENSE-2.09 *10 * Unless required by applicable law or agreed to in writing, software11 * distributed under the License is distributed on an "AS IS" BASIS,12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.13 * See the License for the specific language governing permissions and14 * limitations under the License.15 */16package com.palantir.conjure.postman;17import java.io.File;18import java.lang.annotation.ElementType;19import java.lang.annotation.Retention;20import java.lang.annotation.RetentionPolicy;21import java.lang.annotation.Target;22import java.nio.file.Path;23import java.nio.file.Paths;24import java.util.Arrays;25import java.util.List;26import java.util.Optional;27import java.util.concurrent.ExecutorService;28import java.util.concurrent.Executors;29import java.util.concurrent.TimeUnit;30import java.util.stream.Collectors;31import org.junit.internal.runners.model.EachTestNotifier;32import org.junit.runner.Description;33import org.junit.runner.notification.RunNotifier;34import org.junit.runners.ParentRunner;35import org.junit.runners.model.FrameworkMethod;36import org.junit.runners.model.InitializationError;37import org.junit.runners.model.RunnerScheduler;38import org.slf4j.Logger;39import org.slf4j.LoggerFactory;40/**41 * Inspired by {@link org.junit.runners.BlockJUnit4ClassRunner}, except instead of a test 'method' being the unit of42 * work, it's a 'directory'.43 *44 * Note, this doesn't support @Rule or @ClassRule.45 */46public final class ConjureSubfolderRunner extends ParentRunner<Path> {47    private static final Logger log = LoggerFactory.getLogger(ConjureSubfolderRunner.class);48    @Retention(RetentionPolicy.RUNTIME)49    @Target(ElementType.TYPE)50    public @interface ParentFolder {51        /** Parent folder to list. */52        String value();53        /** Whether tests should be executed indepenently on a CachedThreadPool. */54        boolean parallel() default false;55    }56    /**57     * Use this annotation to tell {@link ConjureSubfolderRunner} to execute your test method for every subfolder58     * it finds inside the {@link ParentFolder} you specified.59     */60    @Retention(RetentionPolicy.RUNTIME)61    @Target(ElementType.METHOD)62    public @interface Test {}63    private final Path parent;64    private final FrameworkMethod onlyMethod;65    public ConjureSubfolderRunner(Class<?> klass) throws InitializationError {66        super(klass);67        ParentFolder annotation = getParentFolder(getTestClass().getAnnotation(ParentFolder.class));68        parent = Paths.get(annotation.value());69        onlyMethod = validateMethod(getTestClass().getAnnotatedMethods(ConjureSubfolderRunner.Test.class));70        maybeParallelScheduler(annotation).ifPresent(this::setScheduler);71    }72    @Override73    protected List<Path> getChildren() {74        return Arrays.stream(parent.toFile().listFiles())75                .filter(File::isDirectory)76                .map(File::toPath)77                .collect(Collectors.toList());78    }79    @Override80    protected Description describeChild(Path child) {81        return Description.createTestDescription(getName(), child.toString());82    }83    @Override84    protected void runChild(Path child, RunNotifier notifier) {85        Description description = describeChild(child);86        EachTestNotifier eachNotifier = new EachTestNotifier(notifier, description);87        eachNotifier.fireTestStarted();88        try {89            onlyMethod.invokeExplosively(createTestClassInstance(), child);90        } catch (Throwable e) {91            eachNotifier.addFailure(e);92        } finally {93            eachNotifier.fireTestFinished();94        }95    }96    private Object createTestClassInstance()97            throws InstantiationException, IllegalAccessException, java.lang.reflect.InvocationTargetException {98        return getTestClass().getOnlyConstructor().newInstance();99    }100    private ParentFolder getParentFolder(ParentFolder annotation) {101        if (annotation == null) {102            throw new RuntimeException("The class must be annotated with @ParentFolder");103        }104        return annotation;105    }106    private FrameworkMethod validateMethod(List<FrameworkMethod> annotated) {107        if (annotated.size() != 1) {108            throw new RuntimeException("There must be exactly one @ConjureSubfolderRunner.Test method");109        }110        FrameworkMethod method = annotated.get(0);111        if (!method.isPublic()) {112            throw new RuntimeException("@ConjureSubfolderRunner.Test method must be public: " + method);113        }114        Class<?>[] parameters = method.getMethod().getParameterTypes();115        if (parameters.length != 1 || parameters[0] != Path.class) {116            throw new RuntimeException(117                    "@ConjureSubfolderRunner.Test method must have exactly one parameter (java.nio.file.Path): "118                            + method);119        }120        return method;121    }122    private Optional<RunnerScheduler> maybeParallelScheduler(ParentFolder annotation) {123        if (!annotation.parallel()) {124            return Optional.empty();125        }126        return Optional.of(new RunnerScheduler() {127            private final ExecutorService executor = Executors.newCachedThreadPool();128            @Override129            public void schedule(Runnable childStatement) {130                executor.execute(childStatement);131            }132            @Override133            public void finished() {134                try {135                    executor.shutdown();136                    executor.awaitTermination(10, TimeUnit.SECONDS);137                } catch (InterruptedException e) {138                    log.error("Parallel executor interrupted during shutdown", e);139                    Thread.currentThread().interrupt();140                }141            }142        });143    }144}...

Source:ConcurrentComputer.java

1// Copyright 2016 Pants project contributors (see CONTRIBUTORS.md).2// Licensed under the Apache License, Version 2.0 (see LICENSE).3package org.pantsbuild.tools.junit.impl.experimental;4import com.google.common.base.Preconditions;5import com.google.common.base.Throwables;6import java.util.HashMap;7import java.util.Map;8import java.util.concurrent.ExecutionException;9import java.util.concurrent.ExecutorService;10import java.util.concurrent.Executors;11import java.util.concurrent.Future;12import java.util.concurrent.TimeUnit;13import org.junit.runner.Computer;14import org.junit.runner.Runner;15import org.junit.runners.ParentRunner;16import org.junit.runners.model.InitializationError;17import org.junit.runners.model.RunnerBuilder;18import org.junit.runners.model.RunnerScheduler;19import org.pantsbuild.tools.junit.impl.Concurrency;20/**21 * This class allows test classes to run in parallel, test methods to run in parallel, or both.22 * <P>23 * NB(zundel): This class implements the JUnitRunner Computer interface which is marked24 * experimental in JUnit itself.  Unfortunately, to use this interface you must pass an entire25 * class into the runner, its not compatible with the Request style of running tests.26 * </P>27 */28public class ConcurrentComputer extends Computer {29  private final Concurrency concurrency;30  private final int numParallelThreads;31  public ConcurrentComputer(Concurrency concurrency, int numParallelThreads) {32    Preconditions.checkNotNull(concurrency);33    this.concurrency = concurrency;34    this.numParallelThreads = numParallelThreads > 0 ? numParallelThreads : 1;35  }36  private Runner parallelize(Runner runner) {37    if (runner instanceof ParentRunner) {38      ((ParentRunner<?>) runner).setScheduler(new RunnerScheduler() {39        private final Map<Future<?>, Runnable> testResults =40            new HashMap<Future<?>, Runnable>();41        private final ExecutorService fService = Executors.newFixedThreadPool(numParallelThreads);42        @Override43        public void schedule(Runnable childStatement) {44          testResults.put(fService.submit(childStatement), childStatement);45        }46        @Override47        public void finished() {48          try {49            fService.shutdown();50            // TODO(zundel): Change long wait?51            boolean awaitResult = fService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);52            if (!awaitResult) {53              throw new ConcurrentTestRunnerException("Did not terminate all tests sucessfully.");54            }55            for (Future<?> testResult : testResults.keySet()) {56              if (testResult.isDone()) {57                try {58                  testResult.get();59                } catch (ExecutionException e) {60                  Throwables.propagate(e);61                }62              } else if (testResult.isCancelled()) {63                throw new ConcurrentTestRunnerException("Some tests did not run (cancelled)");64              } else {65                throw new ConcurrentTestRunnerException("Some tests did not run.");66              }67            }68          } catch (InterruptedException e) {69            e.printStackTrace(System.err);70          }71        }72      });73    }74    return runner;75  }76  @Override77  public Runner getSuite(RunnerBuilder builder, java.lang.Class<?>[] classes)78      throws InitializationError {79    Runner suite = super.getSuite(builder, classes);80    return this.concurrency.shouldRunClassesParallel() ? parallelize(suite) : suite;81  }82  @Override83  protected Runner getRunner(RunnerBuilder builder, Class<?> testClass)84      throws Throwable {85    Runner runner = super.getRunner(builder, testClass);86    return this.concurrency.shouldRunMethodsParallel() ? parallelize(runner) : runner;87  }88}...

Source:ParallelParameterized.java

1package de.tbosch.test.utils;2import java.lang.annotation.ElementType;3import java.lang.annotation.Retention;4import java.lang.annotation.RetentionPolicy;5import java.lang.annotation.Target;6import java.lang.reflect.Modifier;7import java.util.List;8import java.util.concurrent.ExecutorService;9import java.util.concurrent.Executors;10import java.util.concurrent.TimeUnit;11import org.junit.runners.Parameterized;12import org.junit.runners.model.FrameworkMethod;13import org.junit.runners.model.RunnerScheduler;14import org.junit.runners.model.TestClass;15/**16 * Erweitert den TestRunner {@link Parameterized} um die MÃ¶glichkeit der parallelen TestfallausfÃ¼hrung.17 * 18 * @author Thomas Bosch19 */20public class ParallelParameterized extends Parameterized {21	/**22	 * Annotation fÃ¼r die Methode in der Testklasse, die angibt wieviele Threads parallel laufen sollen.23	 */24	@Retention(RetentionPolicy.RUNTIME)25	@Target(ElementType.METHOD)26	public static @interface ThreadCount {27		// marker28	}29	private static class ThreadPoolScheduler implements RunnerScheduler {30		private final ExecutorService executor;31		/**32		 * Konstruktor.33		 * 34		 * @param threadNum35		 */36		public ThreadPoolScheduler(int threadNum) {37			executor = Executors.newFixedThreadPool(threadNum);38		}39		/**40		 * @see org.junit.runners.model.RunnerScheduler#finished()41		 */42		@Override43		public void finished() {44			executor.shutdown();45			try {46				executor.awaitTermination(8, TimeUnit.HOURS);47			} catch (InterruptedException exc) {48				throw new RuntimeException(exc);49			}50		}51		/**52		 * @see org.junit.runners.model.RunnerScheduler#schedule(java.lang.Runnable)53		 */54		@Override55		public void schedule(Runnable childStatement) {56			executor.submit(childStatement);57		}58	}59	/**60	 * Konstruktor.61	 * 62	 * @param klass63	 * @throws Throwable64	 */65	public ParallelParameterized(Class<?> klass) throws Throwable {66		super(klass);67		int threadNum = (Integer) getThreadCountMethod(getTestClass()).invokeExplosively(null);68		setScheduler(new ThreadPoolScheduler(threadNum));69	}70	private FrameworkMethod getThreadCountMethod(TestClass testClass) throws Exception {71		List<FrameworkMethod> methods = testClass.getAnnotatedMethods(ThreadCount.class);72		for (FrameworkMethod each : methods) {73			int modifiers = each.getMethod().getModifiers();74			if (Modifier.isStatic(modifiers) && Modifier.isPublic(modifiers)) {75				return each;76			}77		}78		throw new Exception("No public static ThreadNumber method on class " + testClass.getName());79	}80}...

Source:SerialScheduler.java

1/*2 * (c) Copyright 2011 by Volker Bergmann. All rights reserved.3 *4 * Redistribution and use in source and binary forms, with or without5 * modification, is permitted under the terms of the6 * GNU General Public License (GPL).7 *8 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"9 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,10 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE12 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE13 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR14 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF15 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS16 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN17 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)18 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE19 * POSSIBILITY OF SUCH DAMAGE.20 */21package org.cauli.junit.scheduler;22import org.junit.runners.model.RunnerScheduler;23/**24 * Simple implementation of the {@link org.junit.runners.model.RunnerScheduler} interface which executes all tests consecutively.<br/><br/>25 * Created: 18.10.2011 15:25:2526 * @since 1.1.027 * @author Volker Bergmann28 */29public class SerialScheduler implements RunnerScheduler {30	public void schedule(Runnable task) {31		task.run();32	}33	public void finished() {34	}35}...

Source:RunnerScheduler.java

1package org.junit.runners.model;2public interface RunnerScheduler {3  void schedule(Runnable paramRunnable);4  5  void finished();6}7/* Location:              D:\APPS\yazan\JPBY.jar!\org\junit\runners\model\RunnerScheduler.class8 * Java compiler version: 5 (49.0)9 * JD-Core Version:       1.1.310 */...

Interface RunnerScheduler

Using AI Code Generation

1import java.util.concurrent.ExecutorService;2import java.util.concurrent.Executors;3import java.util.concurrent.TimeUnit;4public class ThreadPoolScheduler implements RunnerScheduler {5private ExecutorService executor;6public ThreadPoolScheduler() {7executor = Executors.newFixedThreadPool(5);8}9public void schedule(Runnable childStatement) {10executor.submit(childStatement);11}12public void finished() {13executor.shutdown();14try {15executor.awaitTermination(10, TimeUnit.MINUTES);16} catch (InterruptedException e) {17throw new RuntimeException(e);18}19}20}21package com.journaldev.junit; import org.junit.Assert; import org.junit.Ignore; import org.junit.Test; public class JUnitIgnoreTest {22public void test1() {23Assert.assertEquals(1, 1);24}25public void test2() {26Assert.assertEquals(1, 2);27}28public void test3() {29Assert.assertEquals(1, 3);30}31}32package com.journaldev.junit; import org.junit.Assert; import org.junit.Test; import org.junit.experimental.categories.Category; public class JUnitCategoryTest {33@Category(ProductionTest.class)34public void test1() {35Assert.assertEquals(1, 1);36}37@Category(ProductionTest.class)38public void test2() {39Assert.assertEquals(1, 2);40}41@Category(DevelopmentTest.class)42public void test3() {43Assert.assertEquals(1, 3);44}45@Category(DevelopmentTest.class)46public void test4() {47Assert.assertEquals(1, 4);48}49}50package com.journaldev.junit; import org.junit.Assert; import org.junit.Test; import org.junit.runner.RunWith; @RunWith(CustomRunner.class)51public class JUnitCustomRunnerTest {52public void test1() {53Assert.assertEquals(1, 1);54}55public void test2() {56Assert.assertEquals(1, 2);57}58}59package com.journaldev.junit; import org.junit.Assert; import org.junit.Rule; import org.junit.Test;

Interface RunnerScheduler

Using AI Code Generation

1import org.junit.runners.model.RunnerScheduler;2import java.util.concurrent.ExecutorService;3import java.util.concurrent.Executors;4import java.util.concurrent.TimeUnit;5import org.junit.runner.notification.RunNotifier;6import org.junit.runners.BlockJUnit4ClassRunner;7import org.junit.runners.model.InitializationError;8public class ParallelRunner extends BlockJUnit4ClassRunner {9private static final int DEFAULT_POOL_SIZE = 4;10private final RunnerScheduler runnerScheduler;11public ParallelRunner(Class<?> klass) throws InitializationError {12super(klass);13int poolSize = getPoolSize();14runnerScheduler = new ThreadPoolRunnerScheduler(poolSize);15}16public void run(RunNotifier notifier) {17super.run(notifier);18}19protected void runChild(Runnable child, RunNotifier notifier) {20runnerScheduler.schedule(child);21}22protected void finished() {23super.finished();24runnerScheduler.finished();25}26private int getPoolSize() {27int poolSize = DEFAULT_POOL_SIZE;28Parallel annotation = getTestClass().getJavaClass().getAnnotation(Parallel.class);29if (annotation != null) {30poolSize = annotation.poolSize();31}32return poolSize;33}34private static class ThreadPoolRunnerScheduler implements RunnerScheduler {35private final ExecutorService executorService;36public ThreadPoolRunnerScheduler(int poolSize) {37executorService = Executors.newFixedThreadPool(poolSize);38}39public void schedule(Runnable childStatement) {40executorService.submit(childStatement);41}42public void finished() {43executorService.shutdown();44try {45executorService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);46} catch (InterruptedException e) {47throw new RuntimeException(e);48}49}50}51}52import java.lang.annotation.ElementType;53import java.lang.annotation.Retention;54import java.lang.annotation.RetentionPolicy;55import java.lang.annotation.Target;56@Retention(RetentionPolicy.RUNTIME)57@Target(ElementType.TYPE)58public @interface Parallel {59int poolSize() default 4;60}61import org.junit.Test;62import org.junit.runner.RunWith;63@RunWith(ParallelRunner.class)64@Parallel(poolSize = 4)65public class TestParallel {66public void test1() {67System.out.println("Test1");68}69public void test2() {70System.out.println("Test2");71}72public void test3() {73System.out.println("Test3");74}75public void test4() {76System.out.println("Test4");77}

Interface RunnerScheduler

Using AI Code Generation

1import org.junit.runner.notification.RunNotifier;2import org.junit.runners.model.RunnerScheduler;3public class MyRunnerScheduler implements RunnerScheduler {4    private final int maxParallelThreads;5    public MyRunnerScheduler(int maxParallelThreads) {6        this.maxParallelThreads = maxParallelThreads;7    }8    public void schedule(Runnable childStatement) {9    }10    public void finished() {11    }12}13import org.junit.runner.notification.RunNotifier;14import org.junit.runners.model.RunnerScheduler;15public class MyRunnerScheduler implements RunnerScheduler {16    private final int maxParallelThreads;17    public MyRunnerScheduler(int maxParallelThreads) {18        this.maxParallelThreads = maxParallelThreads;19    }20    public void schedule(Runnable childStatement) {21    }22    public void finished() {23    }24}25import org.junit.runner.notification.RunNotifier;26import org.junit.runners.model.RunnerScheduler;27public class MyRunnerScheduler implements RunnerScheduler {28    private final int maxParallelThreads;29    public MyRunnerScheduler(int maxParallelThreads) {30        this.maxParallelThreads = maxParallelThreads;31    }32    public void schedule(Runnable childStatement) {33    }34    public void finished() {35    }36}37import org.junit.runner.notification.RunNotifier;38import org.junit.runners.model.RunnerScheduler;39public class MyRunnerScheduler implements RunnerScheduler {40    private final int maxParallelThreads;41    public MyRunnerScheduler(int maxParallelThreads) {42        this.maxParallelThreads = maxParallelThreads;43    }44    public void schedule(Runnable childStatement) {45    }46    public void finished() {47    }48}49import org.junit.runner.notification.RunNotifier;50import org.junit.runners.model.RunnerScheduler;51public class MyRunnerScheduler implements RunnerScheduler {52    private final int maxParallelThreads;

Interface RunnerScheduler

Using AI Code Generation

1import org.junit.runners.model.RunnerScheduler;2public class CustomRunnerScheduler implements RunnerScheduler {3    private final ExecutorService executorService;4    public CustomRunnerScheduler() {5        executorService = Executors.newFixedThreadPool(10);6    }7    public void schedule(Runnable runnable) {8        executorService.submit(runnable);9    }10    public void finished() {11        executorService.shutdown();12    }13}14import org.junit.runners.model.RunnerScheduler;15public class CustomRunnerScheduler implements RunnerScheduler {16    private final ExecutorService executorService;17    public CustomRunnerScheduler() {18        executorService = Executors.newFixedThreadPool(10);19    }20    public void schedule(Runnable runnable) {21        executorService.submit(runnable);22    }23    public void finished() {24        executorService.shutdown();25    }26}27import org.junit.runners.model.RunnerScheduler;28public class CustomRunnerScheduler implements RunnerScheduler {29    private final ExecutorService executorService;30    public CustomRunnerScheduler() {31        executorService = Executors.newFixedThreadPool(10);32    }33    public void schedule(Runnable runnable) {34        executorService.submit(runnable);35    }36    public void finished() {37        executorService.shutdown();38    }39}40import org.junit.runners.model.RunnerScheduler;41public class CustomRunnerScheduler implements RunnerScheduler {42    private final ExecutorService executorService;43    public CustomRunnerScheduler() {44        executorService = Executors.newFixedThreadPool(10);45    }46    public void schedule(Runnable runnable) {47        executorService.submit(runnable);48    }49    public void finished() {50        executorService.shutdown();51    }52}53import org.junit.runners.model.RunnerScheduler;54public class CustomRunnerScheduler implements RunnerScheduler {55    private final ExecutorService executorService;56    public CustomRunnerScheduler() {57        executorService = Executors.newFixedThreadPool(10);58    }59    public void schedule(Runnable runnable) {60        executorService.submit(runnable);61    }62    public void finished() {63        executorService.shutdown();64    }65}

Source: Concurrent JUnit testing

1Container.GetSevice<MyClass>(someObject1, someObject2)2

Source: junit5 - run tests in parallel (without forkCount in pom)

1public class Hero2{34    [Inject]5    private IInventory Inventory { get; set; }67    [Inject]8    private IArmour Armour { get; set; }910    [Inject]11    protected IWeapon Weapon { get; set; }1213    [Inject]14    private IAction Jump { get; set; }1516    [Inject]17    private IInstanceProvider InstanceProvider { get; set; }181920}21

Source:junit5 - run tests in parallel (without forkCount in pom)

public class Hero
{

    [Inject]
    private IInventory Inventory { get; set; }

    [Inject]
    private IArmour Armour { get; set; }

    [Inject]
    protected IWeapon Weapon { get; set; }

    [Inject]
    private IAction Jump { get; set; }

    [Inject]
    private IInstanceProvider InstanceProvider { get; set; }


}

JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.