/**
   * Returns a {@link CharSink} view of this {@code ByteSink} that writes characters to this sink as
   * bytes encoded with the given {@link Charset charset}.
   */
  public CharSink asCharSink(Charset charset) {
    return new AsCharSink(charset);
  }

  /**
   * Opens a new {@link OutputStream} for writing to this sink. This method returns a new,
   * independent stream each time it is called.
   *

        try {
          writer.write(initialString);
        } finally {
          writer.close();
        }
        return Files.asCharSink(file, Charsets.UTF_8, FileWriteMode.APPEND);
      }
      return Files.asCharSink(file, Charsets.UTF_8);
    }

    @Override
    public String getExpected(String string) {
      checkNotNull(string);

            SourceSinkFactories.pathCharSourceFactory(),
            false));
    suite.addTest(
        CharSinkTester.tests(
            "MoreFiles.asCharSink[Path, Charset]", SourceSinkFactories.pathCharSinkFactory()));
    suite.addTest(
        CharSinkTester.tests(
            "MoreFiles.asCharSink[Path, Charset, APPEND]",
            SourceSinkFactories.appendingPathCharSinkFactory()));
    suite.addTestSuite(MoreFilesTest.class);
    return suite;

   * @throws IOException if an I/O error occurs
   * @deprecated Prefer {@code asCharSink(to, charset).write(from)}.
   */
  @Deprecated
  @InlineMe(
      replacement = "Files.asCharSink(to, charset).write(from)",
      imports = "com.google.common.io.Files")
  public static void write(CharSequence from, File to, Charset charset) throws IOException {
    asCharSink(to, charset).write(from);
  }

  /**

    CharSinkFactory charSinkFactory = SourceSinkFactories.asCharSinkFactory(factory);
    suite.addTest(
        CharSinkTester.suiteForString(
            name + ".asCharSink[Charset]", charSinkFactory, string, desc));
    return suite;
  }

  private static TestSuite suiteForBytes(
      String name, ByteSinkFactory factory, String desc, byte[] bytes) {

    CharSinkFactory charSinkFactory = SourceSinkFactories.asCharSinkFactory(factory);
    suite.addTest(
        CharSinkTester.suiteForString(
            name + ".asCharSink[Charset]", charSinkFactory, string, desc));
    return suite;
  }

  private static TestSuite suiteForBytes(
      String name, ByteSinkFactory factory, String desc, byte[] bytes) {

            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);
    return suite;

            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);
    return suite;

        try {
          writer.write(initialString);
        } finally {
          writer.close();
        }
        return Files.asCharSink(file, Charsets.UTF_8, FileWriteMode.APPEND);
      }
      return Files.asCharSink(file, Charsets.UTF_8);
    }

    @Override
    public String getExpected(String string) {
      checkNotNull(string);

          .put(ByteSource.class, ByteSource.empty())
          .put(CharSource.class, CharSource.empty())
          .put(ByteSink.class, NullByteSink.INSTANCE)
          .put(CharSink.class, NullByteSink.INSTANCE.asCharSink(Charsets.UTF_8))
          // All collections are immutable empty. So safe for any type parameter.
          .put(Iterator.class, ImmutableSet.of().iterator())