File asciiFile = getTestFile("ascii.txt");
    ByteSource byteSource = Files.asByteSource(asciiFile);
    assertThat(byteSource.asCharSource(UTF_8).asByteSource(UTF_8)).isSameInstanceAs(byteSource);
  }

  public void testToByteArray() throws IOException {
    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");

import org.codehaus.plexus.testing.PlexusTest;
import org.codehaus.plexus.util.FileUtils;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;

import static org.codehaus.plexus.testing.PlexusExtension.getTestFile;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;

    @PathSensitive(PathSensitivity.RELATIVE)
    @InputDirectory
    abstract DirectoryProperty getClassDocbookDirectory();

    @OutputFile
    abstract RegularFileProperty getDestFile();

    @OutputFile
    abstract RegularFileProperty getLinksFile();

    @TaskAction
    def transform() {
        XIncludeAwareXmlProvider provider = new XIncludeAwareXmlProvider()