.cache(Cache(fileSystem, "/cache/".toPath(), Long.MAX_VALUE))
      .build()

  @Test
  fun trailersHttp1() {
    trailers(Protocol.HTTP_1_1)
  }

  @Test
  fun trailersHttp2() {
    trailers(Protocol.HTTP_2)
  }

  private fun trailers(protocol: Protocol) {
    enableProtocol(protocol)

    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("h1", "v1")

          .build(),
      )
    assertFailsWith<ProtocolException> {
      call.execute()
    }
  }

  @Test
  fun trueDuplexClientWritesFirst() {
    enableProtocol(Protocol.HTTP_2)
    val body =
      MockSocketHandler()
        .receiveRequest("request A\n")
        .sendResponse("response B\n")
        .receiveRequest("request C\n")
        .sendResponse("response D\n")

        .eventListenerFactory(clientTestRule.wrap(eventRecorder))
        .build()
  }

  @Test
  fun http2OneBadHostOneGoodNoRetryOnConnectionFailure() {
    enableProtocol(Protocol.HTTP_2)

    val request = Request(server1.url("/"))

    server1.enqueue(refusedStream)
    server2.enqueue(bodyResponse)

    dns[server1.hostName] = listOf(ipv6, ipv4)
    socketFactory[ipv6] = server1.socketAddress

            sslSocketFactory(
              sslSocketFactory,
              handshakeCertificates.trustManager,
            )

            when (socketMode.protocol) {
              HTTP_2 -> protocols(listOf(HTTP_2, HTTP_1_1))
              HTTP_1_1 -> protocols(listOf(HTTP_1_1))
              else -> TODO()
            }

            val serverSslSocketFactory =

    }

  @Test
  fun successfulEmptyH2CallEventSequence() {
    enableTlsWithTunnel()
    server.protocols = Arrays.asList(Protocol.HTTP_2, Protocol.HTTP_1_1)
    server.enqueue(MockResponse())
    assertSuccessfulEventOrder(matchesProtocol(Protocol.HTTP_2), emptyBody = true)
    assertBytesReadWritten(
      eventRecorder,
      CoreMatchers.any(Long::class.java),
      null,
      greaterThan(0L),

  }

  @Test
  fun serverTruncatesRequestOnLongPostHttp1() {
    serverTruncatesRequestOnLongPost(https = false)
  }

  @Test
  fun serverTruncatesRequestOnLongPostHttp2() {
    enableProtocol(Protocol.HTTP_2)
    serverTruncatesRequestOnLongPost(https = true)
  }

  private fun serverTruncatesRequestOnLongPost(https: Boolean) {
    server.enqueue(
      MockResponse
        .Builder()
        .body("abc")

    server.enqueue(MockResponse(code = 500))
    executeSynchronously("/")
      .assertCode(500)
      .assertNotSuccessful()
  }

  @Test
  fun get_HTTP_2() {
    enableProtocol(Protocol.HTTP_2)
    get()
  }

  @Test
  fun get_HTTPS() {
    enableTls()
    get()
  }

  @Test
  fun repeatedHeaderNames() {
    server.enqueue(
      MockResponse(
        headers =

                }
              },
            ),
          ).build()

      val response = client.newCall(request).execute()

      response.use {
        assertEquals(Protocol.HTTP_2, response.protocol)
        assertEquals(200, response.code)
        // see https://github.com/google/conscrypt/blob/b9463b2f74df42d85c73715a5f19e005dfb7b802/android/src/main/java/org/conscrypt/Platform.java#L613
        when {

      "ConnectionAcquired",
      "ConnectionReleased",
    )
  }

  @Test
  @Throws(IOException::class)
  fun secondCallEventSequence() {
    enableTls()
    server.protocols = listOf(Protocol.HTTP_2, Protocol.HTTP_1_1)
    server.enqueue(MockResponse())
    server.enqueue(MockResponse())

    client
      .newCall(Request(server.url("/")))
      .execute()
      .close()

    client

  internal fun incrementSuccessCount() {
    withLock {
      successCount++
    }
  }

  @Throws(IOException::class)
  fun start() {
    idleAtNs = System.nanoTime()
    if (protocol == Protocol.HTTP_2 || protocol == Protocol.H2_PRIOR_KNOWLEDGE) {
      startHttp2()
    }
  }

  @Throws(IOException::class)
  private fun startHttp2() {