client.listener.assertTextMessage(message)
  }

  /** One peer's streams, listener, and web socket in the test.  */
  private class TestStreams(
    client: Boolean,
    private val taskFaker: TaskFaker,
    private val sourcePipe: Pipe,
    private val sinkPipe: Pipe,
  ) : RealWebSocket.Streams(client, sourcePipe.source.buffer(), sinkPipe.sink.buffer()) {

    }
  }

  fun initReaderAndWriter(
    name: String,
    streams: Streams,
  ) {
    val extensions = this.extensions!!
    synchronized(this) {
      this.name = name
      this.streams = streams
      this.writer =
        WebSocketWriter(
          isClient = streams.client,
          sink = streams.sink,
          random = random,
          perMessageDeflate = extensions.perMessageDeflate,