// Map the single character telephone symbol (℡) to the string "tel".
    assertThat(parse("http://\u2121").host).isEqualTo("tel")

    // Map the Kelvin symbol (K) to the string "k".
    assertThat(parse("http://\u212A").host).isEqualTo("k")
  }

  @Test
  fun quirks() {
    assertThat(parse("http://facebook.com").host).isEqualTo("facebook.com")

      verifyHostname(hostname, it)
    }
  }

  /**
   * This is like [toLowerCase] except that it does nothing if this contains any non-ASCII
   * characters. We want to avoid lower casing special chars like U+212A (Kelvin symbol) because
   * they can return ASCII characters that match real hostnames.
   */
  private fun String.asciiToLowercase(): String {
    return when {
      isAscii() -> lowercase(Locale.US) // This is an ASCII string.

smushcdn.com
wphostedmail.com
wpmucdn.com
tempurl.host
wpmudev.host

// Individual Network Berlin e.V. : https://www.in-berlin.de/
// Submitted by Christian Seitz <chris@in-berlin.de>
dyn-berlin.de
in-berlin.de
in-brb.de
in-butter.de
in-dsl.de
in-dsl.net
in-dsl.org
in-vpn.de
in-vpn.net
in-vpn.org

beauxarts.museum bedzin.pl beeldengeluid.museum beep.pl beer beiarn.no bel.tr belau.pw belem.br bellevue.museum belluno.it benevento.it bentley beppu.oita.jp berg.no bergamo.it bergbau.museum bergen.no berkeley.museum berlevag.no berlevåg.no berlin berlin.museum bern.museum beskidy.pl best bestbuy bet bet.ar beta.bounty-full.com beta.tailscale.net betainabox.com better-than.tv bf bg bg.eu.org bg.it bh bharti bhz.br bi bi.it bialowieza.pl bialystok.pl bib.br bib.ve bibai.hokkaido.jp bible bible.museum...

2129          ; valid                  ;      ; NV8    # 1.1  TURNED GREEK SMALL LETTER IOTA
212A          ; mapped                 ; 006B          # 1.1  KELVIN SIGN
212B          ; mapped                 ; 00E5          # 1.1  ANGSTROM SIGN
212C          ; mapped                 ; 0062          # 1.1  SCRIPT CAPITAL B

    // These should ideally be false, but we know that hostname is usually already checked by us
    assertThat(verifier.verify("\u212A.com", session)).isFalse()
    // Kelvin character below
    assertThat(verifier.verify("K.com", session)).isFalse()
  }

  @Test fun specialKInCert() {
    // https://github.com/apache/httpcomponents-client/commit/303e435d7949652ea77a6c50df1c548682476b6e