011E; 011F; Case map
   0120; 0121; Case map
   0122; 0123; Case map
   0124; 0125; Case map
   0126; 0127; Case map
   0128; 0129; Case map
   012A; 012B; Case map
   012C; 012D; Case map
   012E; 012F; Case map
   0130; 0069 0307; Case map
   0132; 0133; Case map
   0134; 0135; Case map
   0136; 0137; Case map
   0139; 013A; Case map
   013B; 013C; Case map
   013D; 013E; Case map
   013F; 0140; Case map

  ): Boolean {
    try {
      source.require(9) // Frame header size.
    } catch (e: EOFException) {
      return false // This might be a normal socket close.
    }

    //  0                   1                   2                   3
    //  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
    // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    // |                 Length (24)                   |

      0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
      0x70, 0x71, 0x72, 0xfc, 0x73, 0xfd, 0x1ffb, 0x7fff0, 0x1ffc, 0x3ffc, 0x22, 0x7ffd, 0x3,
      0x23, 0x4, 0x24, 0x5, 0x25, 0x26, 0x27, 0x6, 0x74, 0x75, 0x28, 0x29, 0x2a, 0x7, 0x2b,
      0x76, 0x2c, 0x8, 0x9, 0x2d, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7ffe, 0x7fc, 0x3ffd, 0x1ffd,

        sink.writeUtf8(body)
      }
    }

    val expected =
      """
      |--123
      |
      |Quick
      |--123
      |
      |Brown
      |--123
      |
      |Fox
      |--123--
      |
      """.trimMargin().replace("\n", "\r\n")
    val body =
      MultipartBody.Builder("123")
        .addPart("Quick".toRequestBody(null))
        .addPart(StreamingBody("Brown"))

  fun closeReasonMaximumLength() {
    webServer.enqueue(
      MockResponse.Builder()
        .webSocketUpgrade(serverListener)
        .build(),
    )
    val clientReason = repeat('C', 123)
    val serverReason = repeat('S', 123)
    val webSocket: WebSocket = newWebSocket()
    val server = serverListener.assertOpen()
    clientListener.assertOpen()
    webSocket.close(1000, clientReason)

    assertThat(formEncode(95)).isEqualTo("_")
    assertThat(formEncode(96)).isEqualTo("%60")
    assertThat(formEncode(97)).isEqualTo("a")
    assertThat(formEncode(122)).isEqualTo("z")
    assertThat(formEncode(123)).isEqualTo("%7B")
    assertThat(formEncode(124)).isEqualTo("%7C")
    assertThat(formEncode(125)).isEqualTo("%7D")
    assertThat(formEncode(126)).isEqualTo("%7E")
    assertThat(formEncode(127)).isEqualTo("%7F")

        fileBuilder.append(".tmp")
        dirtyFiles += directory / fileBuilder.toString()
        fileBuilder.setLength(truncateTo)
      }
    }

    /** Set lengths using decimal numbers like "10123". */
    @Throws(IOException::class)
    internal fun setLengths(strings: List<String>) {
      if (strings.size != valueCount) {
        invalidLengths(strings)
      }

      try {

0124          ; mapped                 ; 0125          # 1.1  LATIN CAPITAL LETTER H WITH CIRCUMFLEX
0125          ; valid                                  # 1.1  LATIN SMALL LETTER H WITH CIRCUMFLEX
0126          ; mapped                 ; 0127          # 1.1  LATIN CAPITAL LETTER H WITH STROKE
0127          ; valid                                  # 1.1  LATIN SMALL LETTER H WITH STROKE

private val BROWSER_COMPATIBLE_DATE_FORMAT_STRINGS =
  arrayOf(
    // HTTP formats required by RFC2616 but with any timezone:
    // RFC 822, updated by RFC 1123 with any TZ.
    "EEE, dd MMM yyyy HH:mm:ss zzz",
    // RFC 850, obsoleted by RFC 1036 with any TZ.
    "EEEE, dd-MMM-yy HH:mm:ss zzz",
    // ANSI C's asctime() format
    "EEE MMM d HH:mm:ss yyyy",