*
   * https://www.unicode.org/reports/tr46/#Validity_Criteria
   */
  @Test
  fun hostnameInPunycodeNfcAndNfd() {
    // café can be NFC (é is one code point) or NFD (e plus ´ as two code points).
    val hostNfc = "café.com"
    val hostNfcPunycode = "xn--caf-dma.com"
    val hostNfd = "café.com"
    val hostNfdPunycode = "xn--cafe-yvc.com"

 *
 * As another example, this code prints the human-readable query parameters of a Twitter search:
 *
 * ```java
 * HttpUrl url = HttpUrl.parse("https://twitter.com/search?q=cute%20%23puppies&f=images");
 * for (int i = 0, size = url.querySize(); i < size; i++) {
 *   System.out.println(url.queryParameterName(i) + ": " + url.queryParameterValue(i));
 * }
 * ```
 *
 * which prints:
 *
 * ```
 * q: cute #puppies
 * f: images