)
    assertNull(
      Punycode.encode(a1000MaxCodePoint.repeat(2)),
    )
  }

  @Test fun invalidPunycode() {
    assertNull(Punycode.decode("xn--ls8h="))
  }

  private fun testEncodeDecode(
    unicode: String,
    punycode: String,
  ) {
    assertEquals(unicode, Punycode.decode(punycode))
    assertEquals(punycode, Punycode.encode(unicode))
  }

  private fun testDecodeOnly(

 * limitations under the License.
 */
package okhttp3.internal.idn

import okio.Buffer
import okio.ByteString.Companion.encodeUtf8

/**
 * An [RFC 3492] punycode decoder for converting ASCII to Unicode domain name labels. This is
 * intended for use in Internationalized Domain Names (IDNs).
 *
 * This class contains a Kotlin implementation of the pseudocode specified by RFC 3492. It includes

 *
 * This implementation's STD3 rules are configured to `UseSTD3ASCIIRules=false`. This is
 * permissive and permits the `_` character.
 *
 * [mapping table]: https://www.unicode.org/reports/tr46/#IDNA_Mapping_Table
 * [mapping step]: https://www.unicode.org/reports/tr46/#ProcessingStepMap
 */
class SimpleIdnaMappingTable internal constructor(
  internal val mappings: List<Mapping>,
) {
  /**

    }

  fun nonAscii(encoding: Encoding) =
    apply {
      encodings[UNICODE_2] = encoding
      encodings[UNICODE_3] = encoding
      encodings[UNICODE_4] = encoding
    }

  fun test(component: Component) =
    apply {
      for ((codePoint, encoding) in encodings) {
        val codePointString = Encoding.IDENTITY.encode(codePoint)
        if (encoding == Encoding.FORBIDDEN) {

      .isEqualTo("http://a$dotA126/")
    assertInvalid("http://aa$dotA126/", "Invalid URL host: \"aa$dotA126\"")
  }

  /**
   * UTS 46 Validity Criteria: Decoded punycode must be NFC.
   *
   * 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 unicode = "https://長.長.長崎.jp".toHttpUrl()
    assertThat(parse(unicode, "a=b; domain=長.長崎.jp")).isNotNull()
    assertThat(parse(unicode, "a=b; domain=長崎.jp")).isNull()
    val punycode = "https://xn--ue5a.xn--ue5a.xn--8ltr62k.jp".toHttpUrl()
    assertThat(parse(punycode, "a=b; domain=xn--ue5a.xn--8ltr62k.jp")).isNotNull()
    assertThat(parse(punycode, "a=b; domain=xn--8ltr62k.jp")).isNull()
  }

    we didn't call `Response.close()` if the coroutine was canceled before its response was
    returned.

 *  Upgrade: [Okio 3.9.0][okio_3_9_0].

 *  Upgrade: [Kotlin 1.9.23][kotlin_1_9_23].

 *  Upgrade: [Unicode® IDNA 15.1.0][idna_15_1_0]


## Version 5.0.0-alpha.12

_2023-12-17_

We took too long to cut this release and there's a lot of changes in it. We've been busy.

  vararg args: Any,
): String {
  return String.format(Locale.US, format, *args)
}

@Throws(IOException::class)
internal fun BufferedSource.readBomAsCharset(default: Charset): Charset {
  return when (select(UNICODE_BOMS)) {
    0 -> UTF_8
    1 -> UTF_16BE
    2 -> UTF_16LE
    3 -> UTF_32BE
    4 -> UTF_32LE
    -1 -> default
    else -> throw AssertionError()
  }
}

internal fun checkDuration(

import okhttp3.internal.toCanonicalHost
import okhttp3.internal.url.FRAGMENT_ENCODE_SET
import okhttp3.internal.url.FRAGMENT_ENCODE_SET_URI
import okhttp3.internal.url.PASSWORD_ENCODE_SET
import okhttp3.internal.url.PATH_SEGMENT_ENCODE_SET
import okhttp3.internal.url.PATH_SEGMENT_ENCODE_SET_URI
import okhttp3.internal.url.QUERY_COMPONENT_ENCODE_SET
import okhttp3.internal.url.QUERY_COMPONENT_ENCODE_SET_URI
import okhttp3.internal.url.QUERY_COMPONENT_REENCODE_SET

# Ideographic full stop (full-width period for Chinese, etc.) should be
# treated as a dot.
# U+3002 is mapped to U+002E (dot)
http://www.foo\u3002bar.com  s:http p:/ h:www.foo.bar.com

# Invalid unicode characters should fail...
# U+FDD0 is disallowed; %ef%b7%90 is U+FDD0
http://\ufdd0zyx.com

# ...This is the same as previous but escaped.
http://%ef%b7%90zyx.com