def test_connect_server_limits_streams(self):
client_transport, server_transport = dummy_dtls_transport_pair()
client = RTCSctpTransport(client_transport)
self.assertFalse(client.is_server)
server = RTCSctpTransport(server_transport)
server.inbound_streams_max = 2048
server.outbound_streams = 256
self.assertTrue(server.is_server)
# connect
server.start(client.getCapabilities(), client.port)
client.start(server.getCapabilities(), server.port)
# check outcome
run(wait_for_outcome(client, server))
self.assertEqual(client.state, RTCSctpTransport.State.ESTABLISHED)
self.assertEqual(client.inbound_streams, 256)
self.assertEqual(client.outbound_streams, 2048)
self.assertEqual(client._remote_extensions, [130])
self.assertEqual(server.state, RTCSctpTransport.State.ESTABLISHED)
self.assertEqual(server.inbound_streams, 2048)
self.assertEqual(server.outbound_streams, 256)
self.assertEqual(server._remote_extensions, [130])
run(asyncio.sleep(0.5))
# shutdown
run(client.stop())
run(server.stop())
self.assertEqual(client.state, RTCSctpTransport.State.CLOSED)
self.assertEqual(server.state, RTCSctpTransport.State.CLOSED)
def test_connect_client_limits_streams(self):
client_transport, server_transport = dummy_dtls_transport_pair()
client = RTCSctpTransport(client_transport)
client.inbound_streams_max = 2048
client.outbound_streams = 256
self.assertFalse(client.is_server)
server = RTCSctpTransport(server_transport)
self.assertTrue(server.is_server)
# connect
server.start(client.getCapabilities(), client.port)
client.start(server.getCapabilities(), server.port)
# check outcome
run(wait_for_outcome(client, server))
self.assertEqual(client.state, RTCSctpTransport.State.ESTABLISHED)
self.assertEqual(client.inbound_streams, 2048)
self.assertEqual(client.outbound_streams, 256)
self.assertEqual(client._remote_extensions, [130])
self.assertEqual(server.state, RTCSctpTransport.State.ESTABLISHED)
self.assertEqual(server.inbound_streams, 256)
self.assertEqual(server.outbound_streams, 2048)
self.assertEqual(server._remote_extensions, [130])
# client requests additional outbound streams
param = StreamAddOutgoingParam(
request_sequence=client._reconfig_request_seq, new_streams=16)
run(client._send_reconfig_param(param))
run(asyncio.sleep(0.5))
self.assertEqual(server.inbound_streams, 272)
self.assertEqual(server.outbound_streams, 2048)
# shutdown
run(client.stop())
run(server.stop())
self.assertEqual(client.state, RTCSctpTransport.State.CLOSED)
self.assertEqual(server.state, RTCSctpTransport.State.CLOSED)