assertThat(unsignedSub.intValue()).isEqualTo(expected);
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // multiply
  public void testTimes() {
    for (int a : TEST_INTS) {
      for (int b : TEST_INTS) {
        UnsignedInteger aUnsigned = UnsignedInteger.fromIntBits(a);
        UnsignedInteger bUnsigned = UnsignedInteger.fromIntBits(b);

        assertThat(unsignedSub.intValue()).isEqualTo(expected);
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // multiply
  public void testTimes() {
    for (int a : TEST_INTS) {
      for (int b : TEST_INTS) {
        UnsignedInteger aUnsigned = UnsignedInteger.fromIntBits(a);
        UnsignedInteger bUnsigned = UnsignedInteger.fromIntBits(b);

        UnsignedLong unsignedSub = aUnsigned.minus(bUnsigned);
        assertThat(unsignedSub.longValue()).isEqualTo(expected);
      }
    }
  }

  public void testTimes() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);
        UnsignedLong bUnsigned = UnsignedLong.fromLongBits(b);
        long expected =

import static org.gradle.internal.snapshot.CaseSensitivity.CASE_SENSITIVE;
import static org.gradle.util.TestUtil.objectFactory;
import static org.gradle.util.TestUtil.providerFactory;

public class TestFiles {
    private static final FileSystem FILE_SYSTEM = NativeServicesTestFixture.getInstance().get(FileSystem.class);
    private static final DefaultFileLookup FILE_LOOKUP = new DefaultFileLookup();

import org.gradle.api.internal.file.TestFiles
import org.gradle.test.fixtures.file.WorkspaceTest
import org.gradle.util.TestUtil

class SyncCopyActionDecoratorTest extends WorkspaceTest {

    FileCopier copier

    def setup() {
        copier = new FileCopier(
                TestFiles.deleter(),
                TestFiles.directoryFileTreeFactory(),
                TestFiles.fileCollectionFactory(testDirectory),

        def resource = new LocalFileStandInExternalResource(file, TestFiles.fileSystem())
        resource.withContentIfPresent({} as ExternalResource.ContentAndMetadataAction) == null
    }

    def "can fail on missing file when using ContentAndMetadataAction"() {
        def file = tmpDir.file("missing")
        def resource = new LocalFileStandInExternalResource(file, TestFiles.fileSystem())

        when:

            strictlyEqual(new DefaultProjectDependency(project, "conf1", false, TestFiles.taskDependencyFactory())))

        when:
        def base = new DefaultProjectDependency(project, "conf1", true, TestFiles.taskDependencyFactory())
        def differentConf = new DefaultProjectDependency(project, "conf2", true, TestFiles.taskDependencyFactory())

    def snapshotter = TestFiles.fileCollectionSnapshotter()

    def "snapshots a tree with file as root as RegularFileSnapshot"() {
        given:
        def tempDir = tmpDir.createDir('tmpDir')
        def file = tempDir.file('testFile')
        file.text = "content"

        when:

            createDir("b1").createFile("b1")
        }

        def resolver = TestFiles.resolver(testDirectory)
        def fileCollectionFactory = TestFiles.fileCollectionFactory(testDirectory)
        def copySpec = new DestinationRootCopySpec(resolver, new DefaultCopySpec(fileCollectionFactory, TestUtil.objectFactory(), TestUtil.instantiatorFactory().decorateLenient(), TestFiles.patternSetFactory))
        copySpec.with {
            into "out"

import static org.junit.Assert.assertTrue

class FileVisitorUtil {
    static void assertCanStopVisiting(MinimalFileTree tree) {
        assertCanStopVisiting(new FileTreeAdapter(tree, TestFiles.taskDependencyFactory(), TestFiles.patternSetFactory))
    }

    static void assertCanStopVisiting(FileTree tree) {
        boolean found = false
        FileVisitor visitor = [
                visitFile: {FileVisitDetails details ->