}

      override fun writeTo(sink: BufferedSink) {
        sink.writeUtf8("<element/>")
        sink.flush()
      }
    }

    server.enqueue(MockResponse(code = 201))
    server.enqueue(MockResponse(code = 204))
    server.enqueue(MockResponse(code = 204))

    val endpointUrl = server.url("/endpoint")

    var request =
      Request.Builder()
        .url(endpointUrl)

    server!!.enqueue(MockResponse())
    assertSuccessfulEventOrder()
  }

  @Test
  @Throws(IOException::class)
  fun multipleDnsLookupsForSingleCall() {
    server!!.enqueue(
      MockResponse(
        code = 301,
        headers = headersOf("Location", "http://www.fakeurl:" + server!!.port),
      ),
    )
    server!!.enqueue(MockResponse())
    val dns = FakeDns()

  @BeforeEach
  fun before(server: MockWebServer) {
    this.server = server
  }

  @AfterEach
  fun after() {
    listener.assertExhausted()
  }

  @Test
  fun processResponse() {
    server.enqueue(
      MockResponse.Builder()
        .body(
          """
          |data: hey
          |
          |
          """.trimMargin(),
        ).setHeader("content-type", "text/event-stream")
        .build(),

        .build()
    server.enqueue(
      MockResponse.Builder()
        .headersDelay(500, TimeUnit.MILLISECONDS)
        .setHeader("content-type", "text/event-stream")
        .body("data: hey\n\n")
        .build(),
    )
    newEventSource()
    listener.assertFailure("timeout")
  }

  @Test
  fun retainsAccept() {
    server.enqueue(
      MockResponse.Builder()
        .body(

   *
   * @throws IllegalStateException when the call has already been executed.
   */
  fun enqueue(responseCallback: Callback)

  /** Cancels the request, if possible. Requests that are already complete cannot be canceled. */
  fun cancel()

  /**
   * Returns true if this call has been either [executed][execute] or [enqueued][enqueue]. It is an
   * error to execute a call more than once.
   */
  fun isExecuted(): Boolean

        .requestIOException()
        .exhaustResponse()
    server.enqueue(
      MockResponse.Builder()
        .clearHeaders()
        .code(HttpURLConnection.HTTP_MOVED_PERM)
        .addHeader("Location: /b")
        .streamHandler(body)
        .build(),
    )
    server.enqueue(
      MockResponse.Builder()
        .body("this is /b")
        .build(),
    )

  @Test
  fun suspendCall() {
    runTest {
      server.enqueue(MockResponse(body = "abc"))

      val call = client.newCall(request)

      call.executeAsync().use {
        withContext(Dispatchers.IO) {
          assertThat(it.body.string()).isEqualTo("abc")
        }
      }
    }
  }

  @Test
  fun timeoutCall() {
    runTest {
      server.enqueue(
        MockResponse.Builder()

  @Test
  fun suspendCall() {
    runTest {
      server.enqueue(MockResponse(body = "abc"))

      val call = client.newCall(request)

      call.executeAsync().use {
        withContext(Dispatchers.IO) {
          assertThat(it.body.string()).isEqualTo("abc")
        }
      }
    }
  }

  @Test
  fun timeoutCall() {
    runTest {
      server.enqueue(
        MockResponse.Builder()

   * Attempts to remove a single frame from a queue and send it. This prefers to write urgent pongs
   * before less urgent messages and close frames. For example it's possible that a caller will
   * enqueue messages followed by pongs, but this sends pongs followed by messages. Pongs are always
   * written in the order they were enqueued.
   *
   * If a frame cannot be sent - because there are none enqueued or because the web socket is not

@ExperimentalCoroutinesApi // resume with a resource cleanup.
suspend fun Call.executeAsync(): Response =
  suspendCancellableCoroutine { continuation ->
    continuation.invokeOnCancellation {
      this.cancel()
    }
    this.enqueue(
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          continuation.resumeWithException(e)
        }

        override fun onResponse(