public void testToString() {
    assertThat(base64().toString()).isEqualTo("BaseEncoding.base64().withPadChar('=')");
    assertThat(base32Hex().omitPadding().toString())
        .isEqualTo("BaseEncoding.base32Hex().omitPadding()");
    assertThat(base32().lowerCase().withPadChar('$').toString())
        .isEqualTo("BaseEncoding.base32().lowerCase().withPadChar('$')");
    assertThat(base16().withSeparator("\n", 10).toString())

    @Override
    public BaseEncoding omitPadding() {
      return delegate.omitPadding().withSeparator(separator, afterEveryChars);
    }

    @Override
    public BaseEncoding withPadChar(char padChar) {
      return delegate.withPadChar(padChar).withSeparator(separator, afterEveryChars);
    }

    @Override
    public BaseEncoding withSeparator(String separator, int afterEveryChars) {