}

  @AndroidIncompatible // Android forbids null parent ClassLoader
  public void testClassPathEntries_emptyURLClassLoader_noParent() {
    assertThat(ClassPath.getClassPathEntries(new URLClassLoader(new URL[0], null)).keySet())
        .isEmpty();
  }

  @AndroidIncompatible // Android forbids null parent ClassLoader
  public void testClassPathEntries_urlClassLoader_noParent() throws Exception {
    URL url1 = new URL("file:/a");

      this.countDownLatch = countDownLatch;
    }

    @Override
    public void run() {
      countDownLatch.countDown();
    }
  }

  public void testExceptionsCaught() {
    list.add(THROWING_RUNNABLE, directExecutor());
    list.execute();
    list.add(THROWING_RUNNABLE, directExecutor());
  }

  public void testNulls() {
    new NullPointerTester().testAllPublicInstanceMethods(new ExecutionList());

public abstract class FindBadMultiLangSnippets extends DefaultTask {

    @InputDirectory
    @PathSensitive(PathSensitivity.RELATIVE)
    public abstract DirectoryProperty getDocumentationRoot();

    @TaskAction
    public void checkMultiLanguageSnippets() {
        Map<File, List<Error>> errors = new TreeMap<>();

        getDocumentationRoot().getAsFileTree().matching(spec -> spec.include("**/*.adoc")).forEach(file -> {

        void shouldValidateSupportedModelVersions(String version) {
            assertTrue(ModelVersionUtils.isValidModelVersion(version));
        }

        @ParameterizedTest
        @ValueSource(strings = {"3.0.0", "5.0.0", "2.0.0", "6.0.0"})
        @DisplayName("should reject unsupported model versions")
        void shouldRejectUnsupportedModelVersions(String version) {

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    future = SettableFuture.create();
    tester = new ListenableFutureTester(future);
    tester.setUp();
  }

  public void testDefaultState() throws Exception {
    assertThrows(TimeoutException.class, () -> future.get(5, MILLISECONDS));
  }

  public void testSetValue() throws Exception {

public interface ClassMetaDataRepository<T> {
    T get(String fullyQualifiedClassName) throws UnknownDomainObjectException;

    T find(String fullyQualifiedClassName);

    void put(String fullyQualifiedClassName, T metaData);

    void each(Closure cl);

          }
        });
  }

  public void testVoidMethodForwarding() {
    tester.testForwarding(
        Runnable.class,
        new Function<Runnable, Runnable>() {
          @Override
          public Runnable apply(Runnable runnable) {
            return new ForwardingRunnable(runnable);
          }
        });
  }

  public void testToStringForwarding() {
    tester.testForwarding(

            // Execute with target model 4.1.0 (should create .mvn directory to avoid root warnings)
            upgradeGoal.testExecuteWithTargetModel(context, "4.1.0");

            Path mvnDir = projectDir.resolve(".mvn");
            assertTrue(
                    Files.exists(mvnDir),
                    ".mvn directory should be created for 4.1.0 to avoid root directory warnings");
        }

        @Test

public class MultisetAddTester<E> extends AbstractMultisetTester<E> {
  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  public void testAddUnsupported() {
    assertThrows(UnsupportedOperationException.class, () -> getMultiset().add(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddMeansAddOne() {
    int originalCount = getMultiset().count(e0());
    assertTrue(getMultiset().add(e0()));

 * worth having a test to ensure that all our Feature enums have their annotations correctly set up.
 *
 * @author George van den Driessche
 */
public class FeatureEnumTest extends TestCase {
  private static void assertGoodTesterAnnotation(Class<? extends Annotation> annotationClass) {
    assertWithMessage(
            rootLocaleFormat("%s must be annotated with @TesterAnnotation.", annotationClass))