def send_echo(controller, switch):
"""Send echo request to a datapath.
Keep the connection alive through symmetric echoes.
"""
echo = EchoRequest(data=b'kytosd_13')
emit_message_out(controller, switch.connection, echo)
def test_handle_echo_request(self):
"""Test handling echo request message."""
event_name = 'kytos/of_core.v0x04.messages.in.ofpt_echo_request'
switch = get_switch_mock()
switch.connection = get_connection_mock(
0x04, get_switch_mock("00:00:00:00:00:00:00:02"))
data = b'\x04\x02\x00\x0c\x00\x00\x00\x00\x68\x6f\x67\x65'
echo_request = EchoRequest()
echo_request.unpack(data)
event = KytosEvent(name=event_name,
content={
'source': switch.connection,
'message': echo_request
})
self.napp.handle_echo_request(event)
of_event = self.napp.controller.buffers.msg_out.get()
self.assertEqual(of_event.name,
'kytos/of_core.v0x04.messages.out.ofpt_echo_reply')