Examples of org.junit.runners.BlockJUnit4ClassRunner

org.junit.runners.BlockJUnit4ClassRunner
Implements the JUnit 4 standard test case class model, as defined by the annotations in the org.junit package. Many users will never notice this class: it is now the default test class runner, but it should have exactly the same behavior as the old test class runner ( {@code JUnit4ClassRunner}).
BlockJUnit4ClassRunner has advantages for writers of custom JUnit runners that are slight changes to the default behavior, however:
- It has a much simpler implementation based on {@link Statement}s, allowing new operations to be inserted into the appropriate point in the execution flow.
- It is published, and extension and reuse are encouraged, whereas {@code JUnit4ClassRunner} was in an internal package, and is now deprecated.
In turn, in 2009 we introduced {@link Rule}s. In many cases where extending BlockJUnit4ClassRunner was necessary to add new behavior, {@link Rule}s can be used, which makes the extension more reusable and composable. @since 4.5

import org.junit.runners.model.RunnerBuilder;


public class JUnit4Builder extends RunnerBuilder {
    @Override
    public Runner runnerForClass(Class<?> testClass) throws Throwable {
        return new BlockJUnit4ClassRunner(testClass);
    }

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public class JUnit45AndHigherRunnerImpl implements RunnerImpl {


    private BlockJUnit4ClassRunner runner;


    public JUnit45AndHigherRunnerImpl(Class<?> klass) throws InitializationError {
        runner = new BlockJUnit4ClassRunner(klass) {
            protected Statement withBefores(FrameworkMethod method, Object target,
                    Statement statement) {
                // init annotated mocks before tests
                MockitoAnnotations.initMocks(target);
                return super.withBefores(method, target, statement);

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    }


    protected void runWithCompleteAssignment(final Assignments complete)
        throws InstantiationException, IllegalAccessException,
        InvocationTargetException, NoSuchMethodException, Throwable {
      new BlockJUnit4ClassRunner(getTestClass().getJavaClass()) {
        @Override
        protected void collectInitializationErrors(
            List<Throwable> errors) {
          // do nothing
        }

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  Runner runner = null;


  public IgnorableRunner(Class<?> testClass) {
    try {
      runner = new BlockJUnit4ClassRunner(testClass);
    } catch (InitializationError e) {
      e.printStackTrace();
    }
  }

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  Runner runner = null;


  public IgnorableRunner(Class<?> testClass) {
    try {
      runner = new BlockJUnit4ClassRunner(testClass);
    } catch (InitializationError e) {
      e.printStackTrace();
    }
  }

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  Runner runner = null;


  public IgnorableRunner(Class<?> testClass) {
    try {
      runner = new BlockJUnit4ClassRunner(testClass);
    } catch (InitializationError e) {
      e.printStackTrace();
    }
  }

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    // internal call to execute a single test
    public static void main(final String[] args) throws Exception {
        final Class<?> testClass = Class.forName(args[0]);


        final BlockJUnit4ClassRunner filteredRunner = new BlockJUnit4ClassRunner(testClass) {
            @Override
            protected List<FrameworkMethod> getChildren() {
                try {
                    return Arrays.asList(new FrameworkMethod(testClass.getMethod(args[1])));
                } catch (final NoSuchMethodException e) {

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public class JUnit45AndHigherRunnerImpl implements RunnerImpl {


    private final BlockJUnit4ClassRunner runner;


    public JUnit45AndHigherRunnerImpl(Class<?> klass) throws InitializationError {
        runner = new BlockJUnit4ClassRunner(klass) {
            protected Statement withBefores(FrameworkMethod method, Object target,
                    Statement statement) {
                // init annotated mocks before tests
                MockitoAnnotations.initMocks(target);
                return super.withBefores(method, target, statement);

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             * @throws NoSuchMethodException if an error occurs because no such method with the given name exists.
             * @throws Throwable any other error
             */
            protected void runWithCompleteAssignment(final Assignments complete) throws InstantiationException,
                IllegalAccessException, InvocationTargetException, NoSuchMethodException, Throwable {
                new BlockJUnit4ClassRunner(getTestClass().getJavaClass()) {
                    @Override
                    protected void collectInitializationErrors(List<Throwable> errors) {
                        // do nothing
                    }

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             * @throws NoSuchMethodException if an error occurs because no such method with the given name exists.
             * @throws Throwable any other error
             */
            protected void runWithCompleteAssignment(final Assignments complete) throws InstantiationException,
                IllegalAccessException, InvocationTargetException, NoSuchMethodException, Throwable {
                new BlockJUnit4ClassRunner(getTestClass().getJavaClass()) {
                    @Override
                    protected void collectInitializationErrors(List<Throwable> errors) {
                        // do nothing
                    }

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