"output": null
  },
  {
    "input": "xn--a.ß",
    "output": null
  },
  {
    "input": "xn--ls8h=",
    "output": null
  },
  {
    "comment": "Invalid Punycode (contains non-ASCII character)",
    "input": "xn--tešla",
    "output": null
  },
  {
    "comment": "Valid Punycode",
    "input": "xn--zca.xn--zca",
    "output": "xn--zca.xn--zca"
  },
  {
    "comment": "Mixed",

    testEncodeDecode(
      unicode = "☃.net",
      punycode = "xn--n3h.net",
    )
    testEncodeDecode(
      unicode = "ålgård.no",
      punycode = "xn--lgrd-poac.no",
    )
    testEncodeDecode(
      unicode = "個人.香港",
      punycode = "xn--gmqw5a.xn--j6w193g",
    )
    testEncodeDecode(
      unicode = "упр.срб",
      punycode = "xn--o1ach.xn--90a3ac",
    )
  }

      "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.ß",
      // OkHttp does not reject invalid Punycode.
      "xn--a",
      "xn--a.ß",
      "xn--a.xn--zca",
      "xn--a-yoc",

        host = "テスト.org";
        expected = "xn--zckzah.org";
        assertEquals(expected, resolver.toAscii(host));

        host = "xn--zckzah.org";
        expected = "xn--zckzah.org";
        assertEquals(expected, resolver.toAscii(host));

        host = "%E3%83%86%E3%82%B9%E3%83%88.org";
        expected = "xn--zckzah.org";
        assertEquals(expected, resolver.toAscii(host));

    }

 *
 * [RFC 3492]: https://datatracker.ietf.org/doc/html/rfc3492
 * [RFC 5890]: https://datatracker.ietf.org/doc/html/rfc5890
 * [UTS #46]: https://www.unicode.org/reports/tr46/
 */
object Punycode {
  val PREFIX_STRING = "xn--"
  val PREFIX = PREFIX_STRING.encodeUtf8()

  private const val BASE = 36
  private const val TMIN = 1
  private const val TMAX = 26
  private const val SKEW = 38
  private const val DAMP = 700

    // Hostnames
    assertThat("WwW.GoOgLe.cOm".toCanonicalHost()).isEqualTo("www.google.com")
    assertThat("localhost".toCanonicalHost()).isEqualTo("localhost")
    assertThat("☃.net".toCanonicalHost()).isEqualTo("xn--n3h.net")

    // IPv4 Compatible or Mapped addresses
    assertThat("::192.168.0.1".toCanonicalHost()).isEqualTo("::c0a8:1")
    assertThat("::FFFF:192.168.0.1".toCanonicalHost()).isEqualTo("192.168.0.1")

      CertificatePinner.Builder()
        .add("σkhttp.com", certA1Sha256Pin)
        .build()

    val expectedPin = listOf(Pin("σkhttp.com", certA1Sha256Pin))
    assertThat(certificatePinner.findMatchingPins("xn--khttp-fde.com")).isEqualTo(expectedPin)
  }

  /** https://github.com/square/okhttp/issues/3324  */
  @Test
  fun checkSubstringMatch() {
    val certificatePinner =
      CertificatePinner.Builder()