}
	}
}

func TestAppendRune(t *testing.T) {
	for _, tt := range encodeTests {
		var out []uint16
		for _, u := range tt.in {
			out = AppendRune(out, u)
		}
		if !reflect.DeepEqual(out, tt.out) {
			t.Errorf("AppendRune(%x) = %x; want %x", tt.in, out, tt.out)
		}
	}
}

func TestEncodeRune(t *testing.T) {
	for i, tt := range encodeTests {
		j := 0
		for _, r := range tt.in {

   * Does not close {@code appendable} if it is {@code Closeable}.
   *
   * @return the number of characters copied
   * @throws IOException if an I/O error occurs while reading from this source or writing to {@code
   *     appendable}
   */
  @CanIgnoreReturnValue
  public long copyTo(Appendable appendable) throws IOException {

      throw new AssertionError(e);
    }
  }

  private static final Appendable NASTY_APPENDABLE =
      new Appendable() {
        @Override
        public Appendable append(@Nullable CharSequence csq) throws IOException {
          throw new IOException();
        }

        @Override
        public Appendable append(@Nullable CharSequence csq, int start, int end)
            throws IOException {

      }
    };
  }

  static Appendable separatingAppendable(
      Appendable delegate, String separator, int afterEveryChars) {
    checkNotNull(delegate);
    checkNotNull(separator);
    checkArgument(afterEveryChars > 0);
    return new Appendable() {
      int charsUntilSeparator = afterEveryChars;

      @Override
      public Appendable append(char c) throws IOException {

      throw new AssertionError(e);
    }
  }

  private static final Appendable NASTY_APPENDABLE =
      new Appendable() {
        @Override
        public Appendable append(@Nullable CharSequence csq) throws IOException {
          throw new IOException();
        }

        @Override
        public Appendable append(@Nullable CharSequence csq, int start, int end)
            throws IOException {

      }
    };
  }

  static Appendable separatingAppendable(
      Appendable delegate, String separator, int afterEveryChars) {
    checkNotNull(delegate);
    checkNotNull(separator);
    checkArgument(afterEveryChars > 0);
    return new Appendable() {
      int charsUntilSeparator = afterEveryChars;

      @Override
      public Appendable append(char c) throws IOException {

    private final AnsiExecutor ansiExecutor;

    public AnsiConsole(Appendable target, Flushable flushable, ColorMap colorMap, ConsoleMetaData consoleMetaData, boolean forceAnsi) {
        this(target, flushable, colorMap, consoleMetaData, new DefaultAnsiFactory(forceAnsi));
    }

    private AnsiConsole(Appendable target, Flushable flushable, ColorMap colorMap, ConsoleMetaData consoleMetaData, AnsiFactory factory) {

	defer os.Remove(name2)
	f.WriteString("bbbbbbbbbb")
	f.Close()

	if err = AppendFile(name1, name2, false); err != nil {
		t.Error(err)
	}

	b, err := os.ReadFile(name1)
	if err != nil {
		t.Error(err)
	}

	expected := "aaaaaaaaaabbbbbbbbbb"
	if string(b) != expected {
		t.Errorf("AppendFile() failed, expected: %s, got %s", expected, string(b))
	}
}

    private final GradleLauncherMetaData delegate;

    public DefaultBuildClientMetaData(GradleLauncherMetaData delegate) {
        this.delegate = delegate;
    }

    @Override
    public void describeCommand(Appendable output, String... args) {
        delegate.describeCommand(output, args);
    }

func (rb *reorderBuffer) decomposeHangul(r rune) {
	r -= hangulBase
	x := r % jamoTCount
	r /= jamoTCount
	rb.appendRune(jamoLBase + r/jamoVCount)
	rb.appendRune(jamoVBase + r%jamoVCount)
	if x != 0 {
		rb.appendRune(jamoTBase + x)
	}
}

// combineHangul algorithmically combines Jamo character components into Hangul.