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How to use ParallelComputer class of org.junit.experimental package

Best junit code snippet using org.junit.experimental.ParallelComputer

Source:ParallelComputer.java

...9/*    */ import org.junit.runners.model.InitializationError;10/*    */ import org.junit.runners.model.RunnerBuilder;11/*    */ import org.junit.runners.model.RunnerScheduler;12/*    */ 13/*    */ public class ParallelComputer14/*    */   extends Computer15/*    */ {16/*    */   private final boolean classes;17/*    */   private final boolean methods;18/*    */   19/*    */   public ParallelComputer(boolean classes, boolean methods) {20/* 20 */     this.classes = classes;21/* 21 */     this.methods = methods;22/*    */   }23/*    */   24/*    */   public static Computer classes() {25/* 25 */     return new ParallelComputer(true, false);26/*    */   }27/*    */   28/*    */   public static Computer methods() {29/* 29 */     return new ParallelComputer(false, true);30/*    */   }31/*    */   32/*    */   private static Runner parallelize(Runner runner) {33/* 33 */     if (runner instanceof ParentRunner) {34/* 34 */       ((ParentRunner)runner).setScheduler(new RunnerScheduler() {35/* 35 */             private final ExecutorService fService = Executors.newCachedThreadPool();36/*    */             37/*    */             public void schedule(Runnable childStatement) {38/* 38 */               this.fService.submit(childStatement);39/*    */             }40/*    */             41/*    */             public void finished() {42/*    */               try {43/* 43 */                 this.fService.shutdown();44/* 44 */                 this.fService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);45/* 45 */               } catch (InterruptedException e) {46/* 46 */                 e.printStackTrace(System.err);47/*    */               } 48/*    */             }49/*    */           });50/*    */     }51/* 51 */     return runner;52/*    */   }53/*    */ 54/*    */ 55/*    */   56/*    */   public Runner getSuite(RunnerBuilder builder, Class<?>[] classes) throws InitializationError {57/* 57 */     Runner suite = super.getSuite(builder, classes);58/* 58 */     return this.classes ? parallelize(suite) : suite;59/*    */   }60/*    */ 61/*    */ 62/*    */   63/*    */   protected Runner getRunner(RunnerBuilder builder, Class<?> testClass) throws Throwable {64/* 64 */     Runner runner = super.getRunner(builder, testClass);65/* 65 */     return this.methods ? parallelize(runner) : runner;66/*    */   }67/*    */ }68/* Location:              C:\Users\CAR\Desktop\sab\SAB_projekat_1920\SAB_projekat_1920\SAB_projekat_1920.jar!\org\junit\experimental\ParallelComputer.class69 * Java compiler version: 5 (49.0)70 * JD-Core Version:       1.1.371 */...

Source:TestSuite.java

1package com.naxsoft;2import org.junit.experimental.ParallelComputer;3import org.junit.experimental.max.MaxCore;4import org.junit.internal.TextListener;5import org.junit.runner.JUnitCore;6import org.junit.runner.Request;7import org.junit.runner.Result;8import org.reflections.Reflections;9import org.slf4j.Logger;10import org.slf4j.LoggerFactory;11import java.io.File;12import java.io.IOException;13import java.lang.reflect.Modifier;14import java.nio.file.Path;15import java.nio.file.Paths;16import java.util.LinkedList;17import java.util.Set;18import static java.lang.System.out;19/**20 * Copyright NAXSoft 201521 */22public class TestSuite {23    private static final Logger LOGGER = LoggerFactory.getLogger(TestSuite.class);24    public static void main(String[] args) throws IOException {25        Path maxCorePath = Paths.get("", "maxCore").toAbsolutePath();26        File file = maxCorePath.toFile();27        MaxCore maxCore = MaxCore.storedLocally(file);28        JUnitCore core = new JUnitCore();29        core.addListener(new TextListener(out));30        ParallelComputer computer = new ParallelComputer(true, true);31        Reflections reflections = new Reflections("com.naxsoft");32        Set<Class<? extends AbstractTest>> classes = reflections.getSubTypesOf(AbstractTest.class);33        LinkedList<Class<?>> included = new LinkedList<>();34        for (Class<? extends AbstractTest> clazz : classes) {35            if (!Modifier.isAbstract(clazz.getModifiers())) {36                included.add(clazz);37            }38        }39        try {40            Class<?>[] clazz = new Class<?>[]{};41            Request request = Request.classes(computer, included.toArray(clazz));42            maxCore.run(request, core);43        } catch (Exception e) {44            LOGGER.error("Failed run the test", e);45        }46    }47//    public static void main(String[] args) throws IOException {48//        JUnitCore core = new JUnitCore();49//        ParallelComputer computer = new ParallelComputer(true, true);50//51//        Reflections reflections = new Reflections("com.naxsoft");52//        Set<Class<? extends AbstractTest>> classes = reflections.getSubTypesOf(AbstractTest.class);53//54//        for (Class<? extends AbstractTest> clazz : classes) {55//            if (!Modifier.isAbstract(clazz.getModifiers())) {56//                try {57//                    logger.info("Instantiating {}", clazz.getName());58//                    Result result = core.run(computer,clazz);59//                    System.out.println(result.wasSuccessful());60//                } catch (Exception e) {61//                    logger.error("Failed to instantiate test {}", clazz, e);62//                }63//            }...

Source:GridParallelComputerTest.java

1package grid.ParallelComputerGrid;2import org.junit.After;3import org.junit.Before;4import org.junit.Test;5import org.junit.experimental.ParallelComputer;6import org.junit.runner.JUnitCore;7import org.openqa.selenium.By;8import org.openqa.selenium.Platform;9import org.openqa.selenium.WebDriver;10import org.openqa.selenium.WebElement;11import org.openqa.selenium.remote.DesiredCapabilities;12import org.openqa.selenium.remote.RemoteWebDriver;13import java.net.MalformedURLException;14import java.net.URL;15/**16 * Created by ONUR on 20.11.2016.17 */18public class GridParallelComputerTest {19    /* ~~~~~~Description~~~~~~20    Run All Test in Parallel with JUnit's ParallelComputer feature.21    By using below logic you can run your junit cases in parallel.22    Class[] cls={test1.class,test2.class,test3.class,test4.class};23    JUnitCore.runClasses(new ParallelComputer(true,true),cls);24    In above method first parameter of ParallelComputer() indicates classes and second one is for methods.25    Here I'm running classes and methods in parallel.26    ParallelComputer Class documentation is below:27    http://junit-team.github.io/junit/javadoc/4.10/org/junit/experimental/ParallelComputer.html28    */29    @Test30    public void runAllTests() {31        Class<?>[] classes = {ParallelTest1.class,ParallelTest2.class};32        // ParallelComputer(true,true) will run all classes and methods33        // in parallel.  (First arg for classes, second arg for methods)34        // I set true, true this means classes and methods runs in parallel.35        JUnitCore.runClasses(new ParallelComputer(true, true), classes);36    }37}...

Source:ParallelTest.java

1package com.code.basic.Unit.junit.thread;2import org.junit.experimental.ParallelComputer;3import org.junit.runner.JUnitCore;4import org.junit.runner.Result;5public class ParallelTest {6	@SuppressWarnings("rawtypes")7	public static void main(String[] args) {8		Class[] cls = { A.class, B.class };9		Result rt;10		// å¹¶åä»¥ç±»ä¸ºç»´åº¦11//		rt = JUnitCore.runClasses(ParallelComputer.classes(), cls);12		// å¹¶åä»¥æ¹æ³ä¸ºç»´åº¦13		 rt = JUnitCore.runClasses(ParallelComputer.methods(), cls);14		// å¹¶åä»¥ç±»åæ¹æ³ä¸ºç»´åº¦15//		rt = JUnitCore.runClasses(new ParallelComputer(true, true), cls);16		System.out.println(rt.getRunCount() + " " + rt.getFailures() + " "17				+ rt.getRunTime());18	}19}...

Source:TestClassParallel.java

1package junitparallel;23import org.junit.Test;4import org.junit.experimental.ParallelComputer;5import org.junit.runner.JUnitCore;67public class TestClassParallel {89    @Test10    public void test() {11        Class[] cls = { TestClassA.class, TestClassB.class };1213        // Parallel among classes14        JUnitCore.runClasses(ParallelComputer.classes(), cls);1516        System.out.println("----------------------------");17        18        // Parallel among methods in a class19        JUnitCore.runClasses(ParallelComputer.methods(), cls);2021        System.out.println("----------------------------");22        23        // Parallel all methods in all classes24        JUnitCore.runClasses(new ParallelComputer(true, true), cls);25    }
...

Source:ParallelRun.java

1package com.element34.junit;2import com.element34.junit.SeleniumSuiteWatcher;3import org.junit.ClassRule;4import org.junit.Test;5import org.junit.experimental.ParallelComputer;6import org.junit.rules.TestRule;7import org.junit.runner.JUnitCore;8/**9 * Created by freynaud on 03/09/2017.10 */11public class ParallelRun {12  @ClassRule13  public static TestRule watcher = new SeleniumSuiteWatcher();14  @Test15  public void runSuite(){16    //JUnitCore junit = new JUnitCore();17    //junit.addListener();18    //JUnitCore.runClasses(ParallelComputer.classes(), new Class[]{SeleniumTest.class, SeleniumTest2.class});19    JUnitCore.runClasses(new ParallelComputer(true, true), new Class[]{SeleniumTest.class, SeleniumTest2.class, SeleniumTest3.class});20  }21}...

Source:ParallelTests.java

1//package selenium.suits;2//3//import org.junit.Test;4//import org.junit.experimental.ParallelComputer;5//import org.junit.runner.JUnitCore;6//7//public class ParallelTests {8//9//    @Test10//    public void runAllBrowserTests() {11//        Class<?>[] classes =12//                {13//                        RegistrationTest.class14//                };15//        // ParallelComputer(true, true) will run all classes and methods16//        // in parallel. (First arg for classes, second arg for methods)17//        JUnitCore.runClasses(new ParallelComputer(true, true), classes);18//    }19//}...

ParallelComputer

Using AI Code Generation

1import org.junit.runner.JUnitCore;2import org.junit.runner.Result;3import org.junit.runner.notification.Failure;4import org.junit.experimental.ParallelComputer;5public class ParallelTestRunner {6    public static void main(String[] args) {7        Class[] cls = {TestJunit.class, TestJunit2.class, TestJunit3.class};8        Result result = JUnitCore.runClasses(new ParallelComputer(true, true), cls);9        for (Failure failure : result.getFailures()) {10            System.out.println(failure.toString());11        }12        System.out.println(result.wasSuccessful());13    }14}15package org.junit.experimental;16import java.util.ArrayList;17import java.util.List;18import java.util.concurrent.ExecutorService;19import java.util.concurrent.Executors;20import java.util.concurrent.Future;21import java.util.concurrent.TimeUnit;22import org.junit.runner.JUnitCore;23import org.junit.runner.Request;24import org.junit.runner.Result;25import org.junit.runner.notification.Failure;26import org.junit.runner.notification.RunListener;27import org.junit.runners.model.InitializationError;28public class ParallelComputer extends Computer {29    private final boolean classes;30    private final boolean methods;31    public ParallelComputer(boolean classes, boolean methods) {32        this.classes = classes;33        this.methods = methods;34    }35    public ExecutorService getExecutor() {36        return Executors.newCachedThreadPool();37    }38    public void runTests(final RunnerScheduler scheduler, final Class<?>... classes) throws InitializationError {39        final ExecutorService service = getExecutor();40        try {41            List<Future<?>> futures = new ArrayList<Future<?>>();42            for (final Class<?> each : classes) {43                futures.add(service.submit(new Runnable() {44                    public void run() {45                        Request request = Request.aClass(each);46                        if (!ParallelComputer.this.methods) {47                            request = request.filterWith(new NoTestMethodFilter());48                        }49                        JUnitCore core = new JUnitCore();50                        core.addListener(new RunListener() {51                            public void testRunFinished(Result result) throws Exception {52                                scheduler.finished();53                            }54                        });55                        core.run(request);56                    }57                }));58            }59            for (Future<?> each : futures) {60                try {61                    each.get();62                } catch (Exception e) {63                    e.printStackTrace();64                }65            }66        } finally {67            service.shutdown();68            try {69                service.awaitTermination(10, TimeUnit.MINUTES);70            } catch (InterruptedException e) {71                e.printStackTrace();

ParallelComputer

Using AI Code Generation

1import org.junit.runner.JUnitCore;2import org.junit.runner.Result;3import org.junit.runner.notification.Failure;4import org.junit.experimental.ParallelComputer;5import org.junit.experimental.ParallelComputer.Method;6import org.junit.experimental.ParallelComputer.Class;7public class RunAllTests {8    public static void main(String[] args) {9        Class[] cls = {TestJunit1.class, TestJunit2.class, TestJunit3.class, TestJunit4.class};10        Result result = JUnitCore.runClasses(new ParallelComputer(true, true), cls);11        for (Failure failure : result.getFailures()) {12            System.out.println(failure.toString());13        }14        System.out.println(result.wasSuccessful());15    }16}

ParallelComputer

Using AI Code Generation

1import org.junit.experimental.ParallelComputer;2import org.junit.runner.JUnitCore;3import org.junit.runner.Result;4import org.junit.runner.notification.Failure;5import org.junit.runners.Suite;6import com.example.test.JUnitTestSuite;7public class ParallelTestRunner {8	public static void main(String[] args) {9		ParallelComputer pc = new ParallelComputer(true, true);10		JUnitCore.runClasses(pc, JUnitTestSuite.class);11	}12}13package com.example.test;14import org.junit.runner.RunWith;15import org.junit.runners.Suite;16import org.junit.runners.Suite.SuiteClasses;17@RunWith(Suite.class)18@SuiteClasses({ JUnit1Test.class, JUnit2Test.class, JUnit3Test.class })19public class JUnitTestSuite {20}21package com.example.test;22import org.junit.Test;23public class JUnit1Test {24	public void test1() {25		System.out.println("test1() is running");26	}27	public void test2() {28		System.out.println("test2() is running");29	}30	public void test3() {31		System.out.println("test3() is running");32	}33}34package com.example.test;35import org.junit.Test;36public class JUnit2Test {37	public void test1() {38		System.out.println("test1() is running");39	}40	public void test2() {41		System.out.println("test2() is running");42	}43	public void test3() {44		System.out.println("test3() is running");45	}46}47package com.example.test;48import org.junit.Test;49public class JUnit3Test {50	public void test1() {51		System.out.println("test

ParallelComputer

Using AI Code Generation

1[INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ junit4-parallel-runner ---2[INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ junit4-parallel-runner ---3[INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ junit4-parallel-runner ---4[INFO] [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ junit4-parallel-runner ---5[INFO] [INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ junit4-parallel-runner ---6[INFO] [INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ junit4-parallel-runner ---7[INFO] [INFO] --- maven-assembly-plugin:2.4:single (make-assembly) @ junit4-parallel-runner ---

ParallelComputer

Using AI Code Generation

1package com.javacodegeeks.testng.maven;2import org.junit.experimental.ParallelComputer;3import org.junit.runner.JUnitCore;4public class ParallelRunner {5    public static void main(String[] args) {6        Class[] cls = { TestClass1.class, TestClass2.class, TestClass3.class, TestClass4.class };7        JUnitCore.runClasses(new ParallelComputer(true, true), cls);8    }9}10package com.javacodegeeks.testng.maven;11import org.junit.Test;12public class TestClass1 {13    public void test1() {14        System.out.println("TestClass1.test1() is running on thread " + Thread.currentThread().getId());15    }16    public void test2() {17        System.out.println("TestClass1.test2() is running on thread " + Thread.currentThread().getId());18    }19}20package com.javacodegeeks.testng.maven;21import org.junit.Test;22public class TestClass2 {23    public void test1() {24        System.out.println("TestClass2.test1() is running on thread " + Thread.currentThread().getId());25    }26    public void test2() {27        System.out.println("TestClass2.test2() is running on thread " + Thread.currentThread().getId());28    }29}30package com.javacodegeeks.testng.maven;31import org.junit.Test;32public class TestClass3 {33    public void test1() {34        System.out.println("TestClass3.test1() is running on thread " + Thread.currentThread().getId());35    }36    public void test2() {37        System.out.println("TestClass3.test2() is running on thread " + Thread.currentThread().getId());38    }39}40package com.javacodegeeks.testng.maven;41import org.junit.Test;42public class TestClass4 {43    public void test1() {44        System.out.println("TestClass4.test1() is running on thread " + Thread.currentThread().getId());45    }46    public void test2() {47        System.out.println("TestClass4.test2() is running on thread " + Thread.currentThread().getId());48    }49}50TestClass2.test1() is running on thread 1151TestClass1.test1() is running on thread 1052TestClass3.test1() is

ParallelComputer

Using AI Code Generation

1@RunWith(ParallelComputer.class)2@SuiteClasses({ TestClass1.class, TestClass2.class, TestClass3.class, TestClass4.class })3public class ParallelTestSuite {4}5package com.journaldev.junit;6import org.junit.Test;7public class TestClass1 {8	public void testMethod1() {9		System.out.println("TestClass1.testMethod1()");10	}11	public void testMethod2() {12		System.out.println("TestClass1.testMethod2()");13	}14}15package com.journaldev.junit;16import org.junit.Test;17public class TestClass2 {18	public void testMethod1() {19		System.out.println("TestClass2.testMethod1()");20	}21	public void testMethod2() {22		System.out.println("TestClass2.testMethod2()");23	}24}25package com.journaldev.junit;26import org.junit.Test;27public class TestClass3 {28	public void testMethod1() {29		System.out.println("TestClass3.testMethod1()");30	}31	public void testMethod2() {32		System.out.println("TestClass3.testMethod2()");33	}34}35package com.journaldev.junit;36import org.junit.Test;37public class TestClass4 {38	public void testMethod1() {39		System.out.println("TestClass4.testMethod1()");40	}41	public void testMethod2() {42		System.out.println("TestClass4.testMethod2()");43	}44}45TestClass3.testMethod1()46TestClass4.testMethod1()47TestClass1.testMethod1()48TestClass2.testMethod1()49TestClass2.testMethod2()50TestClass1.testMethod2()51TestClass3.testMethod2()52TestClass4.testMethod2()

ParallelComputer

Using AI Code Generation

1@RunWith(ParallelComputer.class)2@SuiteClasses({Test1.class, Test2.class, Test3.class, Test4.class})3public class ParallelTestSuite {4}5ParallelComputer(boolean, boolean)6ParallelComputer(boolean, boolean, boolean)7classes()8methods()9classesAndMethods()

ParallelComputer

Using AI Code Generation

1@RunWith(ParallelComputer.class)2@SuiteClasses({ TestClass1.class, TestClass2.class, TestClass3.class })3public class TestSuite {4}5public Builder excludePackages(String... packages)6public Builder excludeClasses(Class<?>... classes)7public Builder excludeMethods(Class<?> clazz, String... methods)

Source: Concurrent JUnit testing

1DesiredCapabilities cap = DesiredCapabilities.internetExplorer();2cap.setCapability("nativeEvents", false);3cap.setCapability("unexpectedAlertBehaviour", "accept");4cap.setCapability("ignoreProtectedModeSettings", true);5cap.setCapability("disable-popup-blocking", true);6cap.setCapability("enablePersistentHover", true);7cap.setCapability("ignoreZoomSetting", true);8cap.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS,true);9InternetExplorerOptions options = new InternetExplorerOptions();10options.merge(cap);11WebDriver driver = new InternetExplorerDriver(options);12

Source:Concurrent JUnit testing

DesiredCapabilities cap = DesiredCapabilities.internetExplorer();
cap.setCapability("nativeEvents", false);
cap.setCapability("unexpectedAlertBehaviour", "accept");
cap.setCapability("ignoreProtectedModeSettings", true);
cap.setCapability("disable-popup-blocking", true);
cap.setCapability("enablePersistentHover", true);
cap.setCapability("ignoreZoomSetting", true);
cap.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS,true);
InternetExplorerOptions options = new InternetExplorerOptions();
options.merge(cap);
WebDriver driver = new InternetExplorerDriver(options);

Source: Running JUnit Test in parallel on Suite Level?

1     InternetExplorerOptions cap = new InternetExplorerOptions();2     cap.setCapability("nativeEvents", false);3     cap.setCapability("unexpectedAlertBehaviour", "accept");4     cap.setCapability("ignoreProtectedModeSettings", true);5     cap.setCapability("disable-popup-blocking", true);6     cap.setCapability("enablePersistentHover", true);7     cap.setCapability("ignoreZoomSetting", true);8     cap.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS,true);9     WebDriver driver = new InternetExplorerDriver(cap);10

Source:Running JUnit Test in parallel on Suite Level?

     InternetExplorerOptions cap = new InternetExplorerOptions();
     cap.setCapability("nativeEvents", false);
     cap.setCapability("unexpectedAlertBehaviour", "accept");
     cap.setCapability("ignoreProtectedModeSettings", true);
     cap.setCapability("disable-popup-blocking", true);
     cap.setCapability("enablePersistentHover", true);
     cap.setCapability("ignoreZoomSetting", true);
     cap.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS,true);
     WebDriver driver = new InternetExplorerDriver(cap);

JUnit Tutorial:

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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.