How to use setScheduler method of org.junit.runners.ParentRunner class

Best junit code snippet using org.junit.runners.ParentRunner.setScheduler

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...35 * @throws36 */​37 public static Runner MulThread(Runner runner) {38 if (runner instanceof ParentRunner) {39 /​/​ setScheduler(RunnerScheduler scheduler):Sets a scheduler that40 /​/​ determines the order and parallelization of children41 /​/​ RunnerScheduler:Represents a strategy for scheduling when42 /​/​ individual test methods should be run (in serial or parallel)43 ((ParentRunner) runner).setScheduler(new RunnerScheduler() {44 private final ExecutorService fService = Executors.newCachedThreadPool();4546 /​/​ private final ExecutorService fService =47 /​/​ Executors.newFixedThreadPool(10);4849 /​/​ Schedule a child statement to run50 public void schedule(Runnable childStatement) {51 this.fService.submit(childStatement);52 }5354 /​/​ Override to implement any behavior that must occur after all55 /​/​ children have been scheduled56 public void finished() {57 try {58 this.fService.shutdown();59 this.fService.awaitTermination(9223372036854775807L, TimeUnit.NANOSECONDS);60 } catch (InterruptedException e) {61 e.printStackTrace(System.err);62 }63 }64 });65 }66 return runner;67 }6869 public ConcurrentSuite(final Class<?> klass) throws InitializationError {70 /​/​ 调用父类ClasspathSuite构造函数71 /​/​ AllDefaultPossibilitiesBuilder根据不同的测试类定义(@RunWith的信息)返回Runner,使用职责链模式72 super(klass, new AllDefaultPossibilitiesBuilder(true) {73 @Override74 public Runner runnerForClass(Class<?> testClass) throws Throwable {75 List<RunnerBuilder> builders = Arrays.asList(new RunnerBuilder[] { ignoredBuilder(), annotatedBuilder(),76 suiteMethodBuilder(), junit3Builder(), junit4Builder() });77 for (RunnerBuilder each : builders) {78 /​/​ 根据不同的测试类定义(@RunWith的信息)返回Runner79 Runner runner = each.safeRunnerForClass(testClass);80 if (runner != null)81 /​/​ 方法级别,多线程执行82 return MulThread(runner);83 }84 return null;85 }86 });8788 /​/​ 类级别,多线程执行89 setScheduler(new RunnerScheduler() {90 private final ExecutorService fService = Executors.newCachedThreadPool();9192 @Override93 public void schedule(Runnable paramRunnable) {94 /​/​ TODO Auto-generated method stub95 fService.submit(paramRunnable);96 }9798 @Override99 public void finished() {100 /​/​ TODO Auto-generated method stub101 try {102 fService.shutdown();103 fService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS); ...

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...28 Reflect.onClass(PumpObjectFactory.class).call("resetContextUnsafeInternal").get();29 cucumberDelegate = newCucumberDelegate(testClass);30 }31 @Override32 public void setScheduler(RunnerScheduler scheduler) {33 cucumberDelegate.setScheduler(scheduler);34 }35 @Override36 public Description getDescription() {37 return cucumberDelegate.getDescription();38 }39 @Override40 public void filter(Filter filter) throws NoTestsRemainException {41 cucumberDelegate.filter(filter);42 }43 @Override44 public void sort(Sorter sorter) {45 cucumberDelegate.sort(sorter);46 }47 @Override...

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...22 return new ParallelComputer(false, true);23 }24 private static Runner parallelize(Runner runner) {25 if (runner instanceof ParentRunner) {26 ((ParentRunner<?>) runner).setScheduler(new RunnerScheduler() {27 private final ExecutorService fService = Executors.newCachedThreadPool();28 public void schedule(Runnable childStatement) {29 fService.submit(childStatement);30 }31 public void finished() {32 try {33 fService.shutdown();34 fService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);35 } catch (InterruptedException e) {36 e.printStackTrace(System.err);37 }38 }39 });40 }...

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...38 {39 return cucumber.childrenInvoker(notifier);40 }41 @Override42 public void setScheduler(RunnerScheduler scheduler)43 {44 cucumber.setScheduler(scheduler);45 }46 /​/​ from ParentsRunner47 @Override48 public void run(RunNotifier notifier)49 {50 cucumber.run(notifier);51 }52 @Override53 public void filter(Filter filter) throws NoTestsRemainException54 {55 cucumber.filter(filter);56 }57}...

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...19import static java.util.concurrent.Executors.newCachedThreadPool;20public class ParallelParameterized extends Parameterized {21 public ParallelParameterized(Class<?> klass) throws Throwable {22 super(klass);23 setScheduler(new ExecutorScheduler(() -> newCachedThreadPool(r -> new Thread(r, "TestRunner-Thread-" + klass))));24 getChildren().forEach(child -> {25 if (child instanceof ParentRunner<?>) {26 ((ParentRunner) child).setScheduler(new ExecutorScheduler(() -> newCachedThreadPool(r -> new Thread(r, "TestRunner-Thread-" + r.toString()))));27 }28 });29 }30}...

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...26 @Test27 public void useChildHarvester() throws InitializationError {28 log= "";29 ParentRunner<?> runner= new BlockJUnit4ClassRunner(FruitTest.class);30 runner.setScheduler(new RunnerScheduler() {31 public void schedule(Runnable childStatement) {32 log+= "before ";33 childStatement.run();34 log+= "after ";35 }3637 public void finished() {38 log+= "afterAll ";39 }40 });4142 runner.run(new RunNotifier());43 assertEquals("before apple after before banana after afterAll ", log);44 } ...

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setScheduler

Using AI Code Generation

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1import org.junit.runner.RunWith;2import org.junit.runners.BlockJUnit4ClassRunner;3import org.junit.runners.model.RunnerScheduler;4@RunWith(CustomRunner.class)5public class TestClass {6}7class CustomRunner extends BlockJUnit4ClassRunner {8 public CustomRunner(Class<?> klass) throws InitializationError {9 super(klass);10 setScheduler(new RunnerScheduler() {11 public void schedule(Runnable childStatement) {12 }13 public void finished() {14 }15 });16 }17}

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setScheduler

Using AI Code Generation

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1import org.junit.runner.JUnitCore;2import org.junit.runner.Result;3import org.junit.runner.RunWith;4import org.junit.runner.notification.RunNotifier;5import org.junit.runners.ParentRunner;6import org.junit.runners.model.InitializationError;7import rx.Scheduler;8import rx.schedulers.Schedulers;9@RunWith(RxJavaTestRunner.class)10public class RxJavaTestRunner extends ParentRunner {11 public RxJavaTestRunner(Class<?> klass) throws InitializationError {12 super(klass);13 }14 protected void runChild(Object child, RunNotifier notifier) {15 setScheduler(Schedulers.immediate());16 super.runChild(child, notifier);17 }18 public static void main(String[] args) {19 Result result = JUnitCore.runClasses(RxJavaTestRunner.class);20 System.out.println("Run count: " + result.getRunCount());21 System.out.println("Failure count: " + result.getFailureCount());22 }23}

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setScheduler

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1@RunWith(Parameterized.class)2public class TestRunner {3 private static final int THREAD_POOL_SIZE = 4;4 private static final int TIMEOUT = 10000;5 private static final int MAX_PARALLEL_TESTS = 4;6 private static final int MAX_CONCURRENT_TESTS = 4;7 private static final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(THREAD_POOL_SIZE);8 public TestRule timeout = new Timeout(TIMEOUT);9 public TestRule watcher = new TestWatcher() {10 protected void starting(Description description) {11 System.out.println("Starting test: " + description.getMethodName());12 }13 protected void succeeded(Description description) {14 System.out.println("Test succeeded: " + description.getMethodName());15 }16 protected void failed(Throwable e, Description description) {17 System.out.println("Test failed: " + description.getMethodName());18 }19 };20 public TestRunner() {21 System.out.println("TestRunner constructor");22 }23 public static void setup() {24 System.out.println("Setup");25 }26 public static void teardown() {27 System.out.println("Teardown");28 }29 public void beforeTest() {30 System.out.println("Before test");31 }32 public void afterTest() {33 System.out.println("After test");34 }35 @Parameterized.Parameters(name = "{index}: {0}")36 public static List<String> data() {37 return Arrays.asList("1", "2", "3", "4", "5", "6", "7", "8", "9", "10");38 }39 public String param;40 public void test() {41 System.out.println("Test: " + param);42 }43 public void test2() {44 System.out.println("Test2: " + param);45 }46 public void test3() {47 System.out.println("Test3: " + param);48 }49 public void test4() {50 System.out.println("Test4: " + param);51 }52 public void test5() {53 System.out.println("Test5: " + param);54 }

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If you add in Hamcrest and JUnit4, you could do:

String x = "foo bar";
Assert.assertThat(x, CoreMatchers.containsString("foo"));

With some static imports, it looks a lot better:

assertThat(x, containsString("foo"));

The static imports needed would be:

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.CoreMatchers.containsString;
https://stackoverflow.com/questions/1092219/assertcontains-on-strings-in-junit

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