fun frameCount(): Int = frameCount

  fun sendFrame(): Http2Writer {
    outFrames.add(OutFrame(frameCount++, bytesOut.size, false))
    return writer
  }

  /**
   * Shortens the last frame from its original length to `length`. This will cause the peer to
   * close the socket as soon as this frame has been written; otherwise the peer stays open until
   * explicitly closed.
   */

    val url = server.url("/")
    assertThat(get(url).body.string()).isEqualTo("A")
    assertThat(get(url).body.string()).isEqualTo("A")
  }

  /**
   * Shortens the body of `response` but not the corresponding headers. Only useful to test
   * how clients respond to the premature conclusion of the HTTP body.
   */
  private fun truncateViolently(