private fun processOneRequest(socket: MockWebServerSocket): Boolean {
      if (socket.source.exhausted()) {
        return false // No more requests on this socket.
      }

      val request =
        readRequest(
          socket = socket,
          connectionIndex = connectionIndex,
          exchangeIndex = nextExchangeIndex++,
        )
      atomicRequestCount.incrementAndGet()
      requestQueue.add(request)

        .build(),
    )
    server.enqueue(
      MockResponse(body = "abc"),
    )
    val headRequest =
      Request
        .Builder()
        .url(server.url("/"))
        .head()
        .build()
    val response = client.newCall(headRequest).execute()
    assertThat(response.code).isEqualTo(200)
    assertArrayEquals(ByteArray(0), response.body.bytes())