flags = FLAG_ACK,
      )
      sink.flush()
    }
  }

  /**
   * HTTP/2 only. Send a push promise header block.
   *
   * A push promise contains all the headers that pertain to a server-initiated request, and a
   * `promisedStreamId` to which response frames will be delivered. Push promise frames are sent as
   * a part of the response to `streamId`. The `promisedStreamId` has a priority of one greater than

  private val writerQueue = taskRunner.newQueue()

  /** Ensures push promise callbacks events are sent in order per stream. */
  private val pushQueue = taskRunner.newQueue()

  /** Notifies the listener of settings changes. */
  private val settingsListenerQueue = taskRunner.newQueue()

  /** User code to run in response to push promise events. */
  private val pushObserver: PushObserver = builder.pushObserver

  }

  @Test fun peerHttp2ClientDisablesPush() {
    val client = false // Peer is client, so we are server.
    val settings = Settings()
    settings[Settings.ENABLE_PUSH] = 0 // The peer client disables push.
    val connection = connectWithSettings(client, settings)

    // verify the peer's settings were read and applied.
    assertThat(connection.peerSettings.getEnablePush(true)).isFalse()
  }