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

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

Source:JUnitCoreWrapper.java

...91        Request req = Request.classes( computer, classesToRun );92        if ( filter != null )93        {94            req = new FilteringRequest( req, filter );95            if ( req.getRunner() == null )96            {97                // nothing to run98                return;99            }100        }101        final Result run = junitCore.run( req );102        JUnit4RunListener.rethrowAnyTestMechanismFailures( run );103    }104    private static Computer createComputer( JUnitCoreParameters parameters )105        throws TestSetFailedException106    {107        return parameters.isNoThreading()108            ? Computer.serial()109            : ParallelComputerFactory.createParallelComputer( parameters );110    }111    private static class FilteringRequest112        extends Request113    {114        private Runner filteredRunner;115        public FilteringRequest( Request req, Filter filter )116        {117            try118            {119                Runner runner = req.getRunner();120                filter.apply( runner );121                filteredRunner = runner;122            }123            catch ( NoTestsRemainException e )124            {125                filteredRunner = null;126            }127        }128        @Override129        public Runner getRunner()130        {131            return filteredRunner;132        }133    }134}...

Source:ParallelRegressionTest2.java

...65            Runner suite = super.getSuite(builder, classes);66            return this.classes ? parallelize(suite) : suite;67        }68        @Override69        protected Runner getRunner(RunnerBuilder builder, Class<?> testClass)70                throws Throwable {71            Runner runner = super.getRunner(builder, testClass);72            return methods ? parallelize(runner) : runner;73        }74    }75}...

Source:JUnitComputer.java

...58    RunnerBuilder runnerBuilder =59        new RunnerBuilder() {60          @Override61          public Runner runnerForClass(Class<?> testClass) throws Throwable {62            return getRunner(builder, testClass);63          }64        };65    return new MySuite(runnerBuilder, classes);66  }67  @Override68  protected Runner getRunner(RunnerBuilder builder, Class<?> testClass) throws Throwable {69    Optional<Class<?>> runnerClass = customRunner(testClass);70    if (runnerClass.isPresent()) {71      Runner runner = (Runner) runnerClass.get().getConstructor(Class.class).newInstance(testClass);72      if (runner instanceof Configurable) {73        Configurable configurable = (Configurable) runner;74        configurable.configure(this.settings);75      }76      return new JUnitRunnerWrapper(runner);77    } else {78      return super.getRunner(builder, testClass);79    }80  }81}...

Source:ParallelComputer.java

...49        return this.classes ? parallelize(suite) : suite;50    }51    /* access modifiers changed from: protected */52    @Override // org.junit.runner.Computer53    public Runner getRunner(RunnerBuilder builder, Class<?> testClass) throws Throwable {54        Runner runner = super.getRunner(builder, testClass);55        return this.methods ? parallelize(runner) : runner;56    }57}

Source:Request.java

...7import org.junit.internal.runners.ErrorReportingRunner;8import org.junit.runner.manipulation.Filter;9import org.junit.runners.model.InitializationError;10public abstract class Request {11    public abstract Runner getRunner();12    public static Request method(Class<?> clazz, String methodName) {13        return aClass(clazz).filterWith(Description.createTestDescription(clazz, methodName));14    }15    public static Request aClass(Class<?> clazz) {16        return new ClassRequest(clazz);17    }18    public static Request classWithoutSuiteMethod(Class<?> clazz) {19        return new ClassRequest(clazz, false);20    }21    public static Request classes(Computer computer, Class<?>... classes) {22        try {23            return runner(computer.getSuite(new AllDefaultPossibilitiesBuilder(true), classes));24        } catch (InitializationError e) {25            throw new RuntimeException("Bug in saff's brain: Suite constructor, called as above, should always complete");26        }27    }28    public static Request classes(Class<?>... classes) {29        return classes(JUnitCore.defaultComputer(), classes);30    }31    public static Request errorReport(Class<?> klass, Throwable cause) {32        return runner(new ErrorReportingRunner(klass, cause));33    }34    public static Request runner(final Runner runner) {35        return new Request() {36            /* class org.junit.runner.Request.AnonymousClass1 */37            @Override // org.junit.runner.Request38            public Runner getRunner() {39                return Runner.this;40            }41        };42    }43    public Request filterWith(Filter filter) {44        return new FilterRequest(this, filter);45    }46    public Request filterWith(Description desiredDescription) {47        return filterWith(Filter.matchMethodDescription(desiredDescription));48    }49    public Request sortWith(Comparator<Description> comparator) {50        return new SortingRequest(this, comparator);51    }52}...

Source:Computer.java

...10        return new Suite(new RunnerBuilder() {11            /* class org.junit.runner.Computer.AnonymousClass1 */12            @Override // org.junit.runners.model.RunnerBuilder13            public Runner runnerForClass(Class<?> testClass) throws Throwable {14                return Computer.this.getRunner(builder, testClass);15            }16        }, classes);17    }18    /* access modifiers changed from: protected */19    public Runner getRunner(RunnerBuilder builder, Class<?> testClass) throws Throwable {20        return builder.runnerForClass(testClass);21    }22}...

getRunner

Using AI Code Generation

1import org.junit.runner.Computer;2import org.junit.runner.Runner;3import org.junit.runner.notification.RunNotifier;4import org.junit.runner.Description;5import org.junit.runner.Result;6import org.junit.runner.notification.Failure;7import org.junit.runner.manipulation.Filter;8import org.junit.runner.manipulation.NoTestsRemainException;9public class TestRunner {10    public static void main(String[] args) {11        Computer computer = new Computer();12        Runner runner = computer.getRunner(SampleTest.class);13        RunNotifier notifier = new RunNotifier();14        notifier.addListener(new JUnitExecutionListener());15        notifier.fireTestRunStarted(runner.getDescription());16        runner.run(notifier);17        notifier.fireTestRunFinished(new Result());18    }19}20import org.junit.runner.Description;21import org.junit.runner.notification.Failure;22import org.junit.runner.notification.RunListener;23public class JUnitExecutionListener extends RunListener {24    public void testRunStarted(Description description) throws Exception {25        System.out.println("Test run started");26    }27    public void testRunFinished(Result result) throws Exception {28        System.out.println("Test run finished");29    }30    public void testStarted(Description description) throws Exception {31        System.out.println("Test started");32    }33    public void testFinished(Description description) throws Exception {34        System.out.println("Test finished");35    }36    public void testFailure(Failure failure) throws Exception {37        System.out.println("Test failed");38    }39    public void testAssumptionFailure(Failure failure) {40        System.out.println("Test assumption failed");41    }42    public void testIgnored(Description description) throws Exception {43        System.out.println("Test ignored");44    }45}46import org.junit.Test;47public class SampleTest {48    public void test1() {49        System.out.println("Test1 executed");50    }51    public void test2() {52        System.out.println("Test2 executed");53    }54    public void test3() {55        System.out.println("Test3 executed");56    }57}

getRunner

Using AI Code Generation

1import org.junit.runner.Computer;2import org.junit.runner.Runner;3public class TestRunner {4    public static void main(String args[]) throws Exception {5        Runner runner = new Computer().getRunner(MyTest.class);6        runner.run(null);7    }8}9import org.junit.runner.Computer;10import org.junit.runner.Runner;11public class TestRunner {12    public static void main(String args[]) throws Exception {13        Runner runner = new Computer().getRunner(MyTest.class);14        runner.run(null);15    }16}17import org.junit.runner.Computer;18import org.junit.runner.Runner;19public class TestRunner {20    public static void main(String args[]) throws Exception {21        Runner runner = new Computer().getRunner(MyTest.class);22        runner.run(null);23    }24}25import org.junit.runner.Computer;26import org.junit.runner.Runner;27public class TestRunner {28    public static void main(String args[]) throws Exception {29        Runner runner = new Computer().getRunner(MyTest.class);30        runner.run(null);31    }32}33import org.junit.runner.Computer;34import org.junit.runner.Runner;35public class TestRunner {36    public static void main(String args[]) throws Exception {37        Runner runner = new Computer().getRunner(MyTest.class);38        runner.run(null);39    }40}41import org.junit.runner.Computer;42import org.junit.runner.Runner;43public class TestRunner {44    public static void main(String args[]) throws Exception {45        Runner runner = new Computer().getRunner(MyTest.class);46        runner.run(null);47    }48}49import org.junit.runner.Computer;50import org.junit.runner.Runner;51public class TestRunner {

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.