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import time
import unittest
import six
if six.PY3:
from unittest import mock
else:
import mock
from engineio import exceptions
from engineio import packet
from engineio import payload
from engineio import socket
class TestSocket(unittest.TestCase):
def setUp(self):
self.bg_tasks = []
def _get_mock_server(self):
mock_server = mock.Mock()
mock_server.ping_timeout = 0.2
mock_server.ping_interval = 0.2
mock_server.async_handlers = True
try:
import queue
except ImportError:
import Queue as queue
import threading
mock_server._async = {'threading': threading,
'thread_class': 'Thread',
'queue': queue,
'queue_class': 'Queue',
'websocket': None}
def bg_task(target, *args, **kwargs):
th = threading.Thread(target=target, args=args, kwargs=kwargs)
self.bg_tasks.append(th)
th.start()
return th
mock_server.start_background_task = bg_task
return mock_server
def _join_bg_tasks(self):
for task in self.bg_tasks:
task.join()
def test_create(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
self.assertEqual(s.server, mock_server)
self.assertEqual(s.sid, 'sid')
self.assertFalse(s.upgraded)
self.assertFalse(s.closed)
self.assertTrue(hasattr(s.queue, 'get'))
self.assertTrue(hasattr(s.queue, 'put'))
self.assertTrue(hasattr(s.queue, 'task_done'))
self.assertTrue(hasattr(s.queue, 'join'))
def test_empty_poll(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
self.assertRaises(exceptions.QueueEmpty, s.poll)
def test_poll(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
pkt1 = packet.Packet(packet.MESSAGE, data='hello')
pkt2 = packet.Packet(packet.MESSAGE, data='bye')
s.send(pkt1)
s.send(pkt2)
self.assertEqual(s.poll(), [pkt1, pkt2])
def test_ping_pong(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.receive(packet.Packet(packet.PING, data='abc'))
r = s.poll()
self.assertEqual(len(r), 1)
self.assertTrue(r[0].encode(), b'3abc')
def test_message_async_handler(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.receive(packet.Packet(packet.MESSAGE, data='foo'))
mock_server._trigger_event.assert_called_once_with('message', 'sid',
'foo',
run_async=True)
def test_message_sync_handler(self):
mock_server = self._get_mock_server()
mock_server.async_handlers = False
s = socket.Socket(mock_server, 'sid')
s.receive(packet.Packet(packet.MESSAGE, data='foo'))
mock_server._trigger_event.assert_called_once_with('message', 'sid',
'foo',
run_async=False)
def test_invalid_packet(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
self.assertRaises(exceptions.UnknownPacketError, s.receive,
packet.Packet(packet.OPEN))
def test_timeout(self):
mock_server = self._get_mock_server()
mock_server.ping_interval = -0.1
s = socket.Socket(mock_server, 'sid')
s.last_ping = time.time() - 1
s.close = mock.MagicMock()
s.send('packet')
s.close.assert_called_once_with(wait=False, abort=False)
def test_polling_read(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'foo')
pkt1 = packet.Packet(packet.MESSAGE, data='hello')
pkt2 = packet.Packet(packet.MESSAGE, data='bye')
s.send(pkt1)
s.send(pkt2)
environ = {'REQUEST_METHOD': 'GET', 'QUERY_STRING': 'sid=foo'}
start_response = mock.MagicMock()
packets = s.handle_get_request(environ, start_response)
self.assertEqual(packets, [pkt1, pkt2])
def test_polling_read_error(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'foo')
environ = {'REQUEST_METHOD': 'GET', 'QUERY_STRING': 'sid=foo'}
start_response = mock.MagicMock()
self.assertRaises(exceptions.QueueEmpty, s.handle_get_request, environ,
start_response)
def test_polling_write(self):
mock_server = self._get_mock_server()
mock_server.max_http_buffer_size = 1000
pkt1 = packet.Packet(packet.MESSAGE, data='hello')
pkt2 = packet.Packet(packet.MESSAGE, data='bye')
p = payload.Payload(packets=[pkt1, pkt2]).encode()
s = socket.Socket(mock_server, 'foo')
s.receive = mock.MagicMock()
environ = {'REQUEST_METHOD': 'POST', 'QUERY_STRING': 'sid=foo',
'CONTENT_LENGTH': len(p), 'wsgi.input': six.BytesIO(p)}
s.handle_post_request(environ)
self.assertEqual(s.receive.call_count, 2)
def test_polling_write_too_large(self):
mock_server = self._get_mock_server()
pkt1 = packet.Packet(packet.MESSAGE, data='hello')
pkt2 = packet.Packet(packet.MESSAGE, data='bye')
p = payload.Payload(packets=[pkt1, pkt2]).encode()
mock_server.max_http_buffer_size = len(p) - 1
s = socket.Socket(mock_server, 'foo')
s.receive = mock.MagicMock()
environ = {'REQUEST_METHOD': 'POST', 'QUERY_STRING': 'sid=foo',
'CONTENT_LENGTH': len(p), 'wsgi.input': six.BytesIO(p)}
self.assertRaises(exceptions.ContentTooLongError,
s.handle_post_request, environ)
def test_upgrade_handshake(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'foo')
s._upgrade_websocket = mock.MagicMock()
environ = {'REQUEST_METHOD': 'GET', 'QUERY_STRING': 'sid=foo',
'HTTP_CONNECTION': 'Foo,Upgrade,Bar',
'HTTP_UPGRADE': 'websocket'}
start_response = mock.MagicMock()
s.handle_get_request(environ, start_response)
s._upgrade_websocket.assert_called_once_with(environ, start_response)
def test_upgrade(self):
mock_server = self._get_mock_server()
mock_server._async['websocket'] = mock.MagicMock()
mock_server._async['websocket_class'] = 'WebSocket'
mock_ws = mock.MagicMock()
mock_server._async['websocket'].WebSocket.return_value = mock_ws
s = socket.Socket(mock_server, 'sid')
s.connected = True
environ = "foo"
start_response = "bar"
s._upgrade_websocket(environ, start_response)
mock_server._async['websocket'].WebSocket.assert_called_once_with(
s._websocket_handler)
mock_ws.assert_called_once_with(environ, start_response)
def test_upgrade_twice(self):
mock_server = self._get_mock_server()
mock_server._async['websocket'] = mock.MagicMock()
s = socket.Socket(mock_server, 'sid')
s.connected = True
s.upgraded = True
environ = "foo"
start_response = "bar"
self.assertRaises(IOError, s._upgrade_websocket,
environ, start_response)
def test_upgrade_packet(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = True
s.receive(packet.Packet(packet.UPGRADE))
r = s.poll()
self.assertEqual(len(r), 1)
self.assertEqual(r[0].encode(), packet.Packet(packet.NOOP).encode())
def test_upgrade_no_probe(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = True
ws = mock.MagicMock()
ws.wait.return_value = packet.Packet(packet.NOOP).encode(
always_bytes=False)
s._websocket_handler(ws)
self.assertFalse(s.upgraded)
def test_upgrade_no_upgrade_packet(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = True
s.queue.join = mock.MagicMock(return_value=None)
ws = mock.MagicMock()
probe = six.text_type('probe')
ws.wait.side_effect = [
packet.Packet(packet.PING, data=probe).encode(
always_bytes=False),
packet.Packet(packet.NOOP).encode(always_bytes=False)]
s._websocket_handler(ws)
ws.send.assert_called_once_with(packet.Packet(
packet.PONG, data=probe).encode(always_bytes=False))
self.assertEqual(s.queue.get().packet_type, packet.NOOP)
self.assertFalse(s.upgraded)
def test_close_packet(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = True
s.close = mock.MagicMock()
s.receive(packet.Packet(packet.CLOSE))
s.close.assert_called_once_with(wait=False, abort=True)
def test_invalid_packet_type(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
pkt = packet.Packet(packet_type=99)
self.assertRaises(exceptions.UnknownPacketError, s.receive, pkt)
def test_upgrade_not_supported(self):
mock_server = self._get_mock_server()
mock_server._async['websocket'] = None
mock_server._async['websocket_class'] = None
s = socket.Socket(mock_server, 'sid')
s.connected = True
environ = "foo"
start_response = "bar"
s._upgrade_websocket(environ, start_response)
mock_server._bad_request.assert_called_once_with()
def test_websocket_read_write(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = False
s.queue.join = mock.MagicMock(return_value=None)
foo = six.text_type('foo')
bar = six.text_type('bar')
s.poll = mock.MagicMock(side_effect=[
[packet.Packet(packet.MESSAGE, data=bar)], exceptions.QueueEmpty])
ws = mock.MagicMock()
ws.wait.side_effect = [
packet.Packet(packet.MESSAGE, data=foo).encode(
always_bytes=False),
None]
s._websocket_handler(ws)
self._join_bg_tasks()
self.assertTrue(s.connected)
self.assertTrue(s.upgraded)
self.assertEqual(mock_server._trigger_event.call_count, 2)
mock_server._trigger_event.assert_has_calls([
mock.call('message', 'sid', 'foo', run_async=True),
mock.call('disconnect', 'sid', run_async=False)])
ws.send.assert_called_with('4bar')
def test_websocket_upgrade_read_write(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = True
s.queue.join = mock.MagicMock(return_value=None)
foo = six.text_type('foo')
bar = six.text_type('bar')
probe = six.text_type('probe')
s.poll = mock.MagicMock(side_effect=[
[packet.Packet(packet.MESSAGE, data=bar)], exceptions.QueueEmpty])
ws = mock.MagicMock()
ws.wait.side_effect = [
packet.Packet(packet.PING, data=probe).encode(
always_bytes=False),
packet.Packet(packet.UPGRADE).encode(always_bytes=False),
packet.Packet(packet.MESSAGE, data=foo).encode(
always_bytes=False),
None]
s._websocket_handler(ws)
self._join_bg_tasks()
self.assertTrue(s.upgraded)
self.assertEqual(mock_server._trigger_event.call_count, 2)
mock_server._trigger_event.assert_has_calls([
mock.call('message', 'sid', 'foo', run_async=True),
mock.call('disconnect', 'sid', run_async=False)])
ws.send.assert_called_with('4bar')
def test_websocket_upgrade_with_payload(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = True
s.queue.join = mock.MagicMock(return_value=None)
probe = six.text_type('probe')
ws = mock.MagicMock()
ws.wait.side_effect = [
packet.Packet(packet.PING, data=probe).encode(
always_bytes=False),
packet.Packet(packet.UPGRADE, data=b'2').encode(
always_bytes=False)]
s._websocket_handler(ws)
self._join_bg_tasks()
self.assertTrue(s.upgraded)
def test_websocket_read_write_wait_fail(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = False
s.queue.join = mock.MagicMock(return_value=None)
foo = six.text_type('foo')
bar = six.text_type('bar')
s.poll = mock.MagicMock(side_effect=[
[packet.Packet(packet.MESSAGE, data=bar)],
[packet.Packet(packet.MESSAGE, data=bar)], exceptions.QueueEmpty])
ws = mock.MagicMock()
ws.wait.side_effect = [
packet.Packet(packet.MESSAGE, data=foo).encode(
always_bytes=False),
RuntimeError]
ws.send.side_effect = [None, RuntimeError]
s._websocket_handler(ws)
self._join_bg_tasks()
self.assertEqual(s.closed, True)
def test_websocket_ignore_invalid_packet(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.connected = False
s.queue.join = mock.MagicMock(return_value=None)
foo = six.text_type('foo')
bar = six.text_type('bar')
s.poll = mock.MagicMock(side_effect=[
[packet.Packet(packet.MESSAGE, data=bar)], exceptions.QueueEmpty])
ws = mock.MagicMock()
ws.wait.side_effect = [
packet.Packet(packet.OPEN).encode(always_bytes=False),
packet.Packet(packet.MESSAGE, data=foo).encode(
always_bytes=False),
None]
s._websocket_handler(ws)
self._join_bg_tasks()
self.assertTrue(s.connected)
self.assertEqual(mock_server._trigger_event.call_count, 2)
mock_server._trigger_event.assert_has_calls([
mock.call('message', 'sid', foo, run_async=True),
mock.call('disconnect', 'sid', run_async=False)])
ws.send.assert_called_with('4bar')
def test_send_after_close(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.close(wait=False)
self.assertRaises(exceptions.SocketIsClosedError, s.send,
packet.Packet(packet.NOOP))
def test_close_after_close(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.close(wait=False)
self.assertTrue(s.closed)
self.assertEqual(mock_server._trigger_event.call_count, 1)
mock_server._trigger_event.assert_called_once_with('disconnect', 'sid',
run_async=False)
s.close()
self.assertEqual(mock_server._trigger_event.call_count, 1)
def test_close_and_wait(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.queue = mock.MagicMock()
s.close(wait=True)
s.queue.join.assert_called_once_with()
def test_close_without_wait(self):
mock_server = self._get_mock_server()
s = socket.Socket(mock_server, 'sid')
s.queue = mock.MagicMock()
s.close(wait=False)
self.assertEqual(s.queue.join.call_count, 0)
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