// Verify the peer received what was expected.
    val rstStream = peer.takeFrame()
    assertThat(rstStream.type).isEqualTo(Http2.TYPE_RST_STREAM)
    assertThat(rstStream.streamId).isEqualTo(2)
    assertThat(rstStream.errorCode).isEqualTo(ErrorCode.CANCEL)
  }

  /**

      stream!!.receiveHeaders(headerBlock.toHeaders(), inFinished)
    }

    override fun rstStream(
      streamId: Int,
      errorCode: ErrorCode,
    ) {
      if (pushedStream(streamId)) {
        pushResetLater(streamId, errorCode)
        return
      }
      val rstStream = removeStream(streamId)
      rstStream?.receiveRstStream(errorCode)
    }

    override fun settings(

  ) {
    fail("")
  }

  override fun headers(
    inFinished: Boolean,
    streamId: Int,
    associatedStreamId: Int,
    headerBlock: List<Header>,
  ) {
    fail("")
  }

  override fun rstStream(
    streamId: Int,
    errorCode: ErrorCode,
  ) {
    fail("")
  }

  override fun settings(
    clearPrevious: Boolean,
    settings: Settings,
  ) {
    fail("")
  }

      this.type = Http2.TYPE_DATA
      this.inFinished = inFinished
      this.streamId = streamId
      this.data = source.readByteString(length.toLong()).toByteArray()
    }

    override fun rstStream(
      streamId: Int,
      errorCode: ErrorCode,
    ) {
      check(type == -1)
      this.type = Http2.TYPE_RST_STREAM
      this.streamId = streamId
      this.errorCode = errorCode
    }

    val errorCodeInt = source.readInt()
    val errorCode =
      ErrorCode.fromHttp2(errorCodeInt) ?: throw IOException(
        "TYPE_RST_STREAM unexpected error code: $errorCodeInt",
      )
    handler.rstStream(streamId, errorCode)
  }

  @Throws(IOException::class)
  private fun readSettings(
    handler: Handler,
    length: Int,
    flags: Int,
    streamId: Int,
  ) {

  }

  @Throws(IOException::class)
  fun flush() {
    this.withLock {
      if (closed) throw IOException("closed")
      sink.flush()
    }
  }

  @Throws(IOException::class)
  fun rstStream(
    streamId: Int,
    errorCode: ErrorCode,
  ) {
    this.withLock {
      if (closed) throw IOException("closed")
      require(errorCode.httpCode != -1)

      frameHeader(

    frame.writeInt(expectedStreamId and 0x7fffffff)
    frame.writeInt(ErrorCode.PROTOCOL_ERROR.httpCode)
    reader.nextFrame(
      requireSettings = false,
      object : BaseTestHandler() {
        override fun rstStream(
          streamId: Int,
          errorCode: ErrorCode,
        ) {
          assertThat(streamId).isEqualTo(expectedStreamId)
          assertThat(errorCode).isEqualTo(ErrorCode.PROTOCOL_ERROR)
        }