final byte[] buffer = new byte[INPUT.length() - 2];
final char[] ch = new char[INPUT.length() - 2];
final ByteBuffer bbuf = ByteBuffer.allocate(INPUT.length() - 2);
assertEquals(-1, sstr.appendQuotedUTF8(buffer, 0));
assertEquals(-1, sstr.appendQuoted(ch, 0));
assertEquals(-1, sstr.putQuotedUTF8(bbuf));
bbuf.rewind();
assertEquals(-1, sstr.appendUnquotedUTF8(buffer, 0));
assertEquals(-1, sstr.appendUnquoted(ch, 0));