def test_send_to_new_contact_failed_to_connect(self):
"""
Sending a message to a new but unreachable contact results in the
resulting deferred to be resolved with the expected exception.
"""
nc = NetstringConnector(self.event_loop)
contact = PeerNode(PUBLIC_KEY, self.version,
'netstring://192.168.0.1:1908')
msg = OK('uuid', 'recipient', 'sender', 9999, 'version', 'seal')
protocol = mock.MagicMock()
def side_effect(*args, **kwargs):
raise ValueError()
protocol.send_string = mock.MagicMock(side_effect=side_effect)
sender = Node(PUBLIC_KEY, PRIVATE_KEY, self.event_loop, nc, 1908)
@asyncio.coroutine
def faux_connect(protocol=protocol):
return ('foo', protocol)
with mock.patch.object(self.event_loop, 'create_connection',
return_value=faux_connect()):
result = nc.send(contact, msg, sender)
with self.assertRaises(ValueError) as ex:
self.event_loop.run_until_complete(result)
self.assertEqual(1, protocol.send_string.call_count)
self.assertTrue(result.done())
self.assertEqual(ex.exception, result.exception())
self.assertNotIn(contact.network_id, nc._connections)
def test_send_to_new_contact_successful_connection(self):
"""
Send a message to a new contact causes a new connection to be made
whose associated protocol object is cached for later use.
"""
nc = NetstringConnector(self.event_loop)
contact = PeerNode(PUBLIC_KEY, self.version,
'netstring://192.168.0.1:1908')
msg = OK('uuid', 'recipient', 'sender', 9999, 'version', 'seal')
protocol = mock.MagicMock()
protocol.send_string = mock.MagicMock()
sender = Node(PUBLIC_KEY, PRIVATE_KEY, self.event_loop, nc, 1908)
@asyncio.coroutine
def faux_connect(protocol=protocol):
return ('foo', protocol)
with mock.patch.object(self.event_loop, 'create_connection',
return_value=faux_connect()):
result = nc.send(contact, msg, sender)
self.event_loop.run_until_complete(result)
self.assertEqual(1, protocol.send_string.call_count)
self.assertTrue(result.done())
self.assertEqual(True, result.result())
self.assertIn(contact.network_id, nc._connections)
self.assertEqual(nc._connections[contact.network_id], protocol)
expected = to_dict(msg)
actual = json.loads(protocol.send_string.call_args[0][0])
self.assertEqual(expected, actual)
def test_send_with_cached_protocol(self):
"""
Send the message to the referenced contact using a cached protocol
object.
"""
nc = NetstringConnector(self.event_loop)
nc._send_message_with_protocol = mock.MagicMock()
contact = PeerNode(PUBLIC_KEY, self.version,
'netstring://192.168.0.1:1908')
msg = OK('uuid', 'recipient', 'sender', 9999, 'version', 'seal')
protocol = mock.MagicMock()
sender = Node(PUBLIC_KEY, PRIVATE_KEY, self.event_loop, nc, 1908)
nc._connections[contact.network_id] = protocol
result = nc.send(contact, msg, sender)
self.assertIsInstance(result, asyncio.Future)
self.assertTrue(result.done())
self.assertEqual(result.result(), True)
nc._send_message_with_protocol.assert_called_once_with(msg, protocol)
def test_send_with_failing_cached_protocol(self):
"""
Attempting to send a message to the referenced contact using a
cached protocol object that cannot send (e.g. perhaps the transport
was dropped?) causes a retry as if the contact were new.
"""
nc = NetstringConnector(self.event_loop)
contact = PeerNode(PUBLIC_KEY, self.version,
'netstring://192.168.0.1:1908')
msg = OK('uuid', 'recipient', 'sender', 9999, 'version', 'seal')
protocol = mock.MagicMock()
def side_effect(*args, **kwargs):
raise ValueError()
protocol.send_string = mock.MagicMock(side_effect=side_effect)
nc._connections[contact.network_id] = protocol
new_protocol = mock.MagicMock()
new_protocol.send_string = mock.MagicMock()
sender = Node(PUBLIC_KEY, PRIVATE_KEY, self.event_loop, nc, 1908)
@asyncio.coroutine
def faux_connect(protocol=new_protocol):
return ('foo', protocol)
with mock.patch.object(self.event_loop, 'create_connection',
return_value=faux_connect()):
result = nc.send(contact, msg, sender)
self.event_loop.run_until_complete(result)
self.assertEqual(1, new_protocol.send_string.call_count)
self.assertTrue(result.done())
self.assertEqual(True, result.result())
self.assertIn(contact.network_id, nc._connections)
self.assertEqual(nc._connections[contact.network_id],
new_protocol)
expected = to_dict(msg)
actual = json.loads(protocol.send_string.call_args[0][0])
self.assertEqual(expected, actual)
