How to use serial method of org.junit.runner.Computer class

Best junit code snippet using org.junit.runner.Computer.serial

Source:JUnitCoreWrapper.java Github

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...37import java.util.Queue;38import static org.apache.maven.surefire.common.junit4.JUnit4Reflector.createDescription;39import static org.apache.maven.surefire.common.junit4.JUnit4Reflector.createIgnored;40import static org.apache.maven.surefire.common.junit4.JUnit4RunListener.rethrowAnyTestMechanismFailures;41import static org.junit.runner.Computer.serial;42import static org.junit.runner.Request.classes;43/**44 * Encapsulates access to JUnitCore45 *46 * @author Kristian Rosenvold47 */48final class JUnitCoreWrapper49{50 private final Notifier notifier;51 private final JUnitCoreParameters jUnitCoreParameters;52 private final ConsoleLogger logger;53 JUnitCoreWrapper( Notifier notifier, JUnitCoreParameters jUnitCoreParameters, ConsoleLogger logger )54 {55 this.notifier = notifier;56 this.jUnitCoreParameters = jUnitCoreParameters;57 this.logger = logger;58 }59 void execute( TestsToRun testsToRun, Filter filter )60 throws TestSetFailedException61 {62 execute( testsToRun, true, Collections.<RunListener>emptyList(), filter );63 }64 void execute( TestsToRun testsToRun, Collection<RunListener> listeners, Filter filter )65 throws TestSetFailedException66 {67 execute( testsToRun, false, listeners, filter );68 }69 private void execute( TestsToRun testsToRun, boolean useIterated, Collection<RunListener> listeners, Filter filter )70 throws TestSetFailedException71 {72 if ( testsToRun.allowEagerReading() )73 {74 executeEager( testsToRun, filter, listeners );75 }76 else77 {78 executeLazy( testsToRun, useIterated, filter, listeners );79 }80 }81 private JUnitCore createJUnitCore( Notifier notifier, Collection<RunListener> listeners )82 {83 JUnitCore junitCore = new JUnitCore();84 // custom listeners added last85 notifier.addListeners( listeners );86 return junitCore;87 }88 private void executeEager( TestsToRun testsToRun, Filter filter, Collection<RunListener> listeners )89 throws TestSetFailedException90 {91 JUnitCore junitCore = createJUnitCore( notifier, listeners );92 Class<?>[] tests = testsToRun.getLocatedClasses();93 Computer computer = createComputer();94 createRequestAndRun( filter, computer, junitCore.withReportedTests( tests ), tests );95 }96 private void executeLazy( TestsToRun testsToRun, boolean useIterated, Filter filter,97 Collection<RunListener> listeners )98 throws TestSetFailedException99 {100 JUnitCore junitCore = createJUnitCore( notifier, listeners );101 for ( Iterator<Class<?>> it = useIterated ? testsToRun.iterated() : testsToRun.iterator(); it.hasNext(); )102 {103 Class<?> clazz = it.next();104 Computer computer = createComputer();105 createRequestAndRun( filter, computer, junitCore.withReportedTests( clazz ), clazz );106 }107 }108 private void createRequestAndRun( Filter filter, Computer computer, JUnitCore junitCore, Class<?>... classesToRun )109 throws TestSetFailedException110 {111 Request req = classes( computer, classesToRun );112 if ( filter != null )113 {114 req = new FilteringRequest( req, filter );115 if ( req.getRunner() == null )116 {117 // nothing to run118 return;119 }120 }121 Result run = junitCore.run( req.getRunner() );122 rethrowAnyTestMechanismFailures( run );123 if ( computer instanceof ParallelComputer )124 {125 String timeoutMessage = ( (ParallelComputer) computer ).describeElapsedTimeout();126 if ( timeoutMessage.length() != 0 )127 {128 throw new TestSetFailedException( timeoutMessage );129 }130 }131 }132 private Computer createComputer()133 {134 return jUnitCoreParameters.isNoThreading()135 ? serial()136 : new ParallelComputerBuilder( logger, jUnitCoreParameters ).buildComputer();137 }138 private final class JUnitCore139 extends org.apache.maven.surefire.junitcore.JUnitCore140 {141 JUnitCore()142 {143 super( JUnitCoreWrapper.this.notifier );144 }145 JUnitCore withReportedTests( Class<?>... tests )146 {147 Queue<String> stoppedTests = JUnitCoreWrapper.this.notifier.getRemainingTestClasses();148 if ( stoppedTests != null )149 {...

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Source:JUnitTestingUtils.java Github

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...105 * {@link RunWith @RunWith} or the default JUnit runner, and assert the106 * expectations of the test execution.107 *108 * <p>To have all tests executed in parallel, supply {@link ParallelComputer#methods()}109 * as the {@code Computer}. To have all tests executed serially, supply110 * {@link Computer#serial()} as the {@code Computer}.111 *112 * @param computer the JUnit {@code Computer} to use113 * @param expectedStartedCount the expected number of tests that started114 * @param expectedFailedCount the expected number of tests that failed115 * @param expectedFinishedCount the expected number of tests that finished116 * @param expectedIgnoredCount the expected number of tests that were ignored117 * @param expectedAssumptionFailedCount the expected number of tests that118 * resulted in a failed assumption119 * @param testClasses one or more test classes to run120 */121 public static void runTestsAndAssertCounters(Computer computer, int expectedStartedCount, int expectedFailedCount,122 int expectedFinishedCount, int expectedIgnoredCount, int expectedAssumptionFailedCount,123 Class<?>... testClasses) throws Exception {124 JUnitCore junit = new JUnitCore();...

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Source:TestRunner.java Github

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...19 JUnitCore jUnitCore = new JUnitCore();20 RunListener runListener = new TextListener(System.out);21 jUnitCore.addListener(runListener);2223 Result result = jUnitCore.run(Computer.serial(), VinciTests.class);24 25 java.awt.Toolkit.getDefaultToolkit().beep();26 27 //System.out.println(result);28 29 return result.getFailureCount()==0 ? 0 : 1;30 }31 32 @Override33 public void stop() {34 // NOP35 }3637} ...

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Source:Computer.java Github

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1public class org.junit.runner.Computer {2 public org.junit.runner.Computer();3 public static org.junit.runner.Computer serial();4 public org.junit.runner.Runner getSuite(org.junit.runners.model.RunnerBuilder, java.lang.Class<?>[]) throws org.junit.runners.model.InitializationError;5 protected org.junit.runner.Runner getRunner(org.junit.runners.model.RunnerBuilder, java.lang.Class<?>) throws java.lang.Throwable;6}...

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serial

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1import org.junit.runner.Computer;2import org.junit.runner.JUnitCore;3import org.junit.runner.Result;4import org.junit.runner.notification.Failure;5public class TestRunner {6 public static void main(String[] args) {7 Result result = JUnitCore.runClasses(Computer.serial(), TestJunit.class);8 for (Failure failure : result.getFailures()) {9 System.out.println(failure.toString());10 }11 System.out.println(result.wasSuccessful());12 }13}14import org.junit.runner.Computer;15import org.junit.runner.JUnitCore;16import org.junit.runner.Result;17import org.junit.runner.notification.Failure;18public class TestRunner {19 public static void main(String[] args) {20 Result result = JUnitCore.runClasses(Computer.parallel(), TestJunit.class);21 for (Failure failure : result.getFailures()) {22 System.out.println(failure.toString());23 }24 System.out.println(result.wasSuccessful());25 }26}27 at org.junit.Assert.assertEquals(Assert.java:115)28 at org.junit.Assert.assertEquals(Assert.java:144)29 at TestJunit.testAdd(TestJunit.java:13)30 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)31 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)32 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)33 at java.lang.reflect.Method.invoke(Method.java:498)34 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)35 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)36 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)37 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)38 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)39 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)40 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)41 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)

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serial

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1public class SerialComputer extends Computer {2 public Runner getSuite(final RunnerBuilder builder, Class<?>[] classes) throws InitializationError {3 return new Runner() {4 public Description getDescription() {5 return Description.createSuiteDescription("Serial Suite", classes);6 }7 public void run(RunNotifier notifier) {8 for (Class<?> each : classes) {9 try {10 builder.runnerForClass(each).run(notifier);11 } catch (Throwable e) {12 notifier.fireTestFailure(new Failure(getDescription(), e));13 }14 }15 }16 };17 }18}19public class ParallelComputer extends Computer {20 public Runner getSuite(final RunnerBuilder builder, Class<?>[] classes) throws InitializationError {21 return new Runner() {22 public Description getDescription() {23 return Description.createSuiteDescription("Parallel Suite", classes);24 }25 public void run(RunNotifier notifier) {26 runChildren(notifier, builder, classes);27 }28 };29 }30 private void runChildren(final RunNotifier notifier, final RunnerBuilder builder, Class<?>[] children) {31 final List<Throwable> errors = Collections.synchronizedList(new ArrayList<Throwable>());32 ExecutorService service = Executors.newFixedThreadPool(children.length);33 for (final Class<?> each : children) {34 service.submit(new Runnable() {35 public void run() {36 try {37 builder.runnerForClass(each).run(notifier);38 } catch (Throwable e) {39 errors.add(e);40 }41 }42 });43 }44 service.shutdown();45 try {46 service.awaitTermination(Long.MAX_VALUE, TimeUnit.SECONDS);47 } catch (InterruptedException e) {48 e.printStackTrace();49 }50 if (!errors.isEmpty()) {51 throw new MultipleFailureException(errors);52 }53 }54}55public class ParallelComputer extends Computer {56 public Runner getSuite(final RunnerBuilder builder, Class<?>[] classes) throws InitializationError {57 return new Runner() {58 public Description getDescription() {59 return Description.createSuiteDescription("Parallel Suite", classes);60 }61 public void run(RunNotifier notifier) {62 runChildren(notifier, builder, classes);

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1 * A {@code Computer} is responsible for running tests in a particular2 * environment. For example, a {@code Computer} for the Java virtual machine3 * might run tests in a single thread. A {@code Computer} for a web browser4 * <p>When JUnit runs a test suite, it uses a {@code Computer} to build5 * a {@link Runner} for each test class. The {@code Runner} is then asked6 * <p>JUnit provides two {@code Computer}s:7 * <li>{@link JUnitCore}: Runs tests in a single thread, as in JUnit 3.8 and8 * <li>{@link org.junit.experimental.ParallelComputer}: Runs tests in multiple9 * threads, as in JUnit 4.4 and earlier. This {@code Computer} is used by10 * <p>JUnit also provides a {@link Computer} that runs tests in parallel11 * {@link org.junit.experimental.ParallelComputer} to12public abstract class Computer {13 * Returns a {@code Runner} for {@code testClass}. The returned14 * {@code Runner} is responsible for running the tests in15 * @return a {@code Runner} for {@code testClass}16 public abstract Runner getSuite(RunNotifier notifier, Class<?>... testClasses)17 throws InitializationError;18 * Returns a {@code Runner} for {@code testClass}. The returned

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serial

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1import org.junit.runner.JUnitCore;2import org.junit.runner.Result;3import org.junit.runner.notification.Failure;4import org.junit.runner.Computer;5public class TestRunner {6 public static void main(String[] args) {7 Result result = JUnitCore.runClasses(new Computer(), TestJunit1.class, TestJunit2.class);8 for (Failure failure : result.getFailures()) {9 System.out.println(failure.toString());10 }11 System.out.println(result.wasSuccessful());12 }13}14 at org.junit.Assert.assertEquals(Assert.java:115)15 at org.junit.Assert.assertEquals(Assert.java:144)16 at TestJunit1.testAdd(TestJunit1.java:12)17 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)18 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)19 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)20 at java.lang.reflect.Method.invoke(Method.java:601)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.runners.ParentRunner.runLeaf(ParentRunner.java:325)26 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)27 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)28 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)29 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)30 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)31 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)32 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)33 at org.junit.runners.ParentRunner.run(ParentRunner.java:363)34 at org.junit.runner.JUnitCore.run(JUnitCore.java:137)35 at org.junit.runner.JUnitCore.run(JUnitCore.java:115)36 at org.junit.runner.Computer$1.run(Computer.java:68)

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