return new FileCharSourceFactory();
  }

  public static CharSinkFactory fileCharSinkFactory() {
    return new FileCharSinkFactory(null);
  }

  public static CharSinkFactory appendingFileCharSinkFactory() {
    String initialString = IoTestCase.ASCII + IoTestCase.I18N;
    return new FileCharSinkFactory(initialString);
  }

  public static ByteSourceFactory urlByteSourceFactory() {

            SourceSinkFactories.fileCharSourceFactory(),
            false));
    suite.addTest(
        CharSinkTester.tests(
            "Files.asCharSink[File, Charset]", SourceSinkFactories.fileCharSinkFactory()));
    suite.addTest(
        CharSinkTester.tests(
            "Files.asCharSink[File, Charset, APPEND]",
            SourceSinkFactories.appendingFileCharSinkFactory()));
    suite.addTestSuite(FilesTest.class);