server.enqueue(
      MockResponse(body = "XXX"),
    )
    val connections: MutableList<RealConnection?> = ArrayList()
    val localClient =
      client.newBuilder().eventListener(
        object : EventListener() {
          override fun connectionAcquired(
            call: Call,
            connection: Connection,
          ) {
            connections.add(connection as RealConnection)

            throw AssertionError()
          }
          super.responseHeadersEnd(call, response)
        }
      }
    client =
      client.newBuilder()
        .eventListener(listener)
        .build()
    val body =
      MockStreamHandler()
        .sendResponse("/a has moved!\n", duplexResponseSent)
        .requestIOException()
        .exhaustResponse()
    server.enqueue(

import okio.IOException
import org.junit.jupiter.api.Assertions

open class RecordingConnectionListener(
  /**
   * An override to ignore the normal order that is enforced.
   * EventListeners added by Interceptors will not see all events.
   */
  private val enforceOrder: Boolean = true,
) : ConnectionListener() {
  val eventSequence: Deque<ConnectionEvent> = ConcurrentLinkedDeque()