@Test
  fun connectionPooling_Async() {
    server.enqueue(MockResponse(body = "abc"))
    server.enqueue(MockResponse(body = "def"))
    server.enqueue(MockResponse(body = "ghi"))
    client.newCall(Request.Builder().url(server.url("/a")).build()).enqueue(callback)
    callback.await(server.url("/a")).assertBody("abc")
    client.newCall(Request.Builder().url(server.url("/b")).build()).enqueue(callback)

          .build(),
      )
    }
  }

  private fun testServerClosesOutput(mockResponse: MockResponse) {
    server.enqueue(mockResponse)
    val responseAfter = MockResponse(body = "This comes after a busted connection")
    server.enqueue(responseAfter)
    server.enqueue(responseAfter) // Enqueue 2x because the broken connection may be reused.
    val response1 = getResponse(newRequest("/a"))
    response1.body
      .source()

    setUp(protocol)
    server.enqueue(
      MockResponse
        .Builder()
        .body(Buffer().write(ByteArray(Http2Connection.OKHTTP_CLIENT_WINDOW_SIZE + 1)))
        .build(),
    )
    server.enqueue(
      MockResponse(body = "abc"),
    )
    // Enqueue an additional response that show if we burnt a good prior response.
    server.enqueue(
      MockResponse(body = "XXX"),
    )

  }

  @Disabled("Not actually failing where expected")
  @Test
  fun disconnectAtStart() {
    server.enqueue(
      MockResponse
        .Builder()
        .onRequestStart(CloseSocket())
        .build(),
    )
    server.enqueue(MockResponse()) // The jdk's HttpUrlConnection is a bastard.
    server.enqueue(MockResponse())
    try {
      server
        .url("/a")
        .toUrl()
        .openConnection()

        .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()

  }

  @Disabled("Not actually failing where expected")
  @Test
  fun disconnectAtStart() {
    server.enqueue(
      MockResponse()
        .setSocketPolicy(SocketPolicy.DISCONNECT_AT_START),
    )
    server.enqueue(MockResponse()) // The jdk's HttpUrlConnection is a bastard.
    server.enqueue(MockResponse())
    try {
      server
        .url("/a")
        .toUrl()
        .openConnection()

  fun redirectToCachedResult() {
    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("Cache-Control: max-age=60")
        .body("ABC")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .code(HttpURLConnection.HTTP_MOVED_PERM)
        .addHeader("Location: /foo")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()

    ListenerCallQueue<Object> queue = new ListenerCallQueue<>();
    queue.addListener(listener, directExecutor());

    Multiset<Object> counters = ConcurrentHashMultiset.create();
    queue.enqueue(incrementingEvent(counters, listener, 1));
    queue.enqueue(THROWING_EVENT);
    queue.enqueue(incrementingEvent(counters, listener, 2));
    queue.enqueue(THROWING_EVENT);
    queue.enqueue(incrementingEvent(counters, listener, 3));

    ListenerCallQueue<Object> queue = new ListenerCallQueue<>();
    queue.addListener(listener, directExecutor());

    Multiset<Object> counters = ConcurrentHashMultiset.create();
    queue.enqueue(incrementingEvent(counters, listener, 1));
    queue.enqueue(THROWING_EVENT);
    queue.enqueue(incrementingEvent(counters, listener, 2));
    queue.enqueue(THROWING_EVENT);
    queue.enqueue(incrementingEvent(counters, listener, 3));

    )
  }

  @Test
  fun cancelAsyncCall() {
    server.enqueue(
      MockResponse
        .Builder()
        .body("abc")
        .build(),
    )
    val call =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    call.enqueue(
      object : Callback {
        override fun onFailure(
          call: Call,