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import http2_base_server

class TestcaseRstStreamDuringData(object):
  """
    In response to an incoming request, this test sends headers, followed by
    some data, followed by a reset stream frame. Client asserts that the RPC
    failed and does not deliver the message to the application.
  """
  def __init__(self):
    self._base_server = http2_base_server.H2ProtocolBaseServer()
    self._base_server._handlers['DataReceived'] = self.on_data_received
    self._base_server._handlers['SendDone'] = self.on_send_done

  def get_base_server(self):
    return self._base_server

  def on_data_received(self, event):
    self._base_server.on_data_received_default(event)
    sr = self._base_server.parse_received_data(event.stream_id)
    if sr:
      response_data = self._base_server.default_response_data(sr.response_size)
      self._ready_to_send = True
      response_len = len(response_data)
      truncated_response_data = response_data[0:response_len/2]
      self._base_server.setup_send(truncated_response_data, event.stream_id)

  def on_send_done(self, stream_id):
    self._base_server.send_reset_stream()
    self._base_server._stream_status[stream_id] = False