serverWriter.writePing(binaryData(1000))
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Payload size must be less than or equal to 125",
      )
    }
  }

  @Test fun pongTooLongThrows() {
    assertFailsWith<IllegalArgumentException> {
      serverWriter.writePong((binaryData(1000)))
    }.also { expected ->

    /** How long to wait to retry pre-emptive connection attempts that fail. */
    @JvmField val backoffDelayMillis: Long = 60 * 1000,
    /** How much jitter to introduce in connection retry backoff delays */
    @JvmField val backoffJitterMillis: Int = 100,
  )

  /**
   * It's invalid to have a label longer than 63 characters. If that's requested, the encoder may
   * overflow and return null.
   */
  @Test fun overflowEncodingOversizedLabel() {
    val a1000 = "a".repeat(1000)
    val a1000MaxCodePoint = a1000 + "\udbff\udfff"
    testEncodeDecode(
      a1000MaxCodePoint,
      "xn--$a1000-nc89312g",
    )
    assertNull(
      Punycode.encode(a1000MaxCodePoint.repeat(2)),

   0F3E-0F47
   0F49-0F6A
   0F7F
   0F85
   0F88-0F8B
   0FBE-0FC5
   0FC7-0FCC
   0FCF
   1000-1021
   1023-1027
   1029-102A
   102C
   1031
   1038
   1040-1057
   10A0-10C5
   10D0-10F8
   10FB
   1100-1159
   115F-11A2
   11A8-11F9
   1200-1206
   1208-1246
   1248
   124A-124D
   1250-1256
   1258
   125A-125D
   1260-1286
   1288

  }

  @Test
  fun streamDiscardingIsTimely() {
    // This response takes at least a full second to serve: 10,000 bytes served 100 bytes at a time.
    server.enqueue(
      MockResponse.Builder()
        .body(Buffer().write(ByteArray(10000)))
        .throttleBody(100, 10, TimeUnit.MILLISECONDS)
        .build(),
    )
    server.enqueue(
      MockResponse(body = "A"),
    )

   * response is ready.
   */
  @Test
  fun dispatchBlocksWaitingForEnqueue() {
    Thread {
      try {
        Thread.sleep(1000)
      } catch (ignored: InterruptedException) {
      }
      server.enqueue(MockResponse().setBody("enqueued in the background"))
    }.start()
    val connection = server.url("/").toUrl().openConnection()

      webSocket.close(1000, reason)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("reason.size() > 123: $reason")
    }
    webSocket.close(1000, null)
    serverListener.assertClosing(1000, "")
    server.close(1000, null)
    clientListener.assertClosing(1000, "")
    clientListener.assertClosed(1000, "")
    serverListener.assertClosed(1000, "")
  }

  @Test

```
[2020-01-01 00:00:00] >> CONNECTION 505249202a20485454502f322e300d0a0d0a534d0d0a0d0a
[2020-01-01 00:00:00] >> 0x00000000     6 SETTINGS
[2020-01-01 00:00:00] >> 0x00000000     4 WINDOW_UPDATE
[2020-01-01 00:00:00] >> 0x00000003    47 HEADERS       END_STREAM|END_HEADERS
[2020-01-01 00:00:00] << 0x00000000     6 SETTINGS
[2020-01-01 00:00:00] << 0x00000000     0 SETTINGS      ACK

    server.webSocket!!.close(1000, "Hello!")
    client.processNextFrame()
    client.listener.assertClosing(1000, "Hello!")
    assertThat(client.webSocket!!.close(1000, "Bye!")).isTrue()
    client.webSocket!!.finishReader()
    taskFaker.runTasks()
    client.listener.assertClosed(1000, "Hello!")
    server.processNextFrame()
    server.listener.assertClosing(1000, "Bye!")
    server.webSocket!!.finishReader()

    data.write("0264".decodeHex()).write(bytes, 0, 100)
    data.write("8064".decodeHex()).write(bytes, 100, 100)
    clientReader.processNextFrame()
    callback.assertBinaryMessage(bytes)
  }

  @Test fun twoFrameNotContinuation() {
    val bytes = binaryData(200)
    data.write("0264".decodeHex()).write(bytes, 0, 100)
    data.write("8264".decodeHex()).write(bytes, 100, 100)
    assertFailsWith<ProtocolException> {