checkVersionsEqual("1a", "1-a");
        checkVersionsEqual("1a", "1.0-a");
        checkVersionsEqual("1a", "1.0.0-a");
        checkVersionsEqual("1.0a", "1-a");
        checkVersionsEqual("1.0.0a", "1-a");
        checkVersionsEqual("1x", "1-x");
        checkVersionsEqual("1x", "1.0-x");
        checkVersionsEqual("1x", "1.0.0-x");
        checkVersionsEqual("1.0x", "1-x");

        String str = key.toString();

        assertTrue(str.startsWith("LeaseKey["));
        assertTrue(str.endsWith("]"));
        assertTrue(str.contains("00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F"));
    }

        // Test odd size (should handle correctly)
        byte[] data3 = { 0x0A, 0x0B, 0x0C };
        assertEquals("0", Hexdump.toHexString(data3, 0, 1)); // 1 char = 0.5 bytes (rounds up to 1)
        assertEquals("0A", Hexdump.toHexString(data3, 0, 2)); // 2 chars = 1 byte
        assertEquals("0A0", Hexdump.toHexString(data3, 0, 3)); // 3 chars = 1.5 bytes (rounds up to 2)

        .query("g\r\n\u000c\t h")
        .fragment("i\r\n\u000c\t j")
        .build()
    assertThat(url.toString()).isEqualTo(
      "http://a%0D%0A%0C%09%20b:c%0D%0A%0C%09%20d@host" +
        "/e%0D%0A%0C%09%20f?g%0D%0A%0C%09%20h#i%0D%0A%0C%09 j",
    )
    assertThat(url.username).isEqualTo("a\r\n\u000c\t b")
    assertThat(url.password).isEqualTo("c\r\n\u000c\t d")

     */
    internal fun StringBuilder.appendQuotedString(key: String) {
      append('"')
      for (i in 0 until key.length) {
        when (val ch = key[i]) {
          '\n' -> append("%0A")
          '\r' -> append("%0D")
          '"' -> append("%22")
          else -> append(ch)
        }
      }
      append('"')
    }
  }

    assertThat(formEncode(7)).isEqualTo("%07")
    assertThat(formEncode(8)).isEqualTo("%08")
    assertThat(formEncode(9)).isEqualTo("%09")
    // Browsers convert '\n' to '\r\n'
    assertThat(formEncode(10)).isEqualTo("%0A")
    assertThat(formEncode(11)).isEqualTo("%0B")
    assertThat(formEncode(12)).isEqualTo("%0C")
    // Browsers convert '\r' to '\r\n'
    assertThat(formEncode(13)).isEqualTo("%0D")