byte[] bytes = string.getBytes(Charsets.UTF_8);
    TestSuite suite = suiteForBytes(name, factory, desc, bytes);
    CharSinkFactory charSinkFactory = SourceSinkFactories.asCharSinkFactory(factory);
    suite.addTest(
        CharSinkTester.suiteForString(
            name + ".asCharSink[Charset]", charSinkFactory, string, desc));
    return suite;
  }

  private static TestSuite suiteForBytes(

@AndroidIncompatible // TODO(b/230620681): Make this available (even though we won't run it).
public class CharSinkTester extends SourceSinkTester<CharSink, String, CharSinkFactory> {

  private static final ImmutableList<Method> testMethods = getTestMethods(CharSinkTester.class);

  static TestSuite tests(String name, CharSinkFactory factory) {
    TestSuite suite = new TestSuite(name);
    for (Entry<String, String> entry : TEST_STRINGS.entrySet()) {

    byte[] bytes = string.getBytes(Charsets.UTF_8);
    TestSuite suite = suiteForBytes(name, factory, desc, bytes);
    CharSinkFactory charSinkFactory = SourceSinkFactories.asCharSinkFactory(factory);
    suite.addTest(
        CharSinkTester.suiteForString(
            name + ".asCharSink[Charset]", charSinkFactory, string, desc));
    return suite;
  }

  private static TestSuite suiteForBytes(

  /** Factory for {@link CharSource} instances. */
  public interface CharSourceFactory extends SourceFactory<CharSource, String> {}

  /** Factory for {@link CharSink} instances. */
  public interface CharSinkFactory extends SinkFactory<CharSink, String> {}

  /** Factory for {@link CharSource} instances. */
  public interface CharSourceFactory extends SourceFactory<CharSource, String> {}

  /** Factory for {@link CharSink} instances. */
  public interface CharSinkFactory extends SinkFactory<CharSink, String> {}

@AndroidIncompatible // TODO(b/230620681): Make this available (even though we won't run it).
public class CharSinkTester extends SourceSinkTester<CharSink, String, CharSinkFactory> {

  private static final ImmutableList<Method> testMethods = getTestMethods(CharSinkTester.class);

  static TestSuite tests(String name, CharSinkFactory factory) {
    TestSuite suite = new TestSuite(name);
    for (Entry<String, String> entry : TEST_STRINGS.entrySet()) {