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test_cherrypy.py
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test_cherrypy.py
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# -*- coding: utf-8 -*-
import os
import socket
import time
import unittest
from mock import MagicMock, call
import cherrypy
from ws4py.server.cherrypyserver import WebSocketPlugin, WebSocketTool
from ws4py.websocket import EchoWebSocket
from ws4py.framing import Frame, OPCODE_TEXT, OPCODE_CLOSE
class FakePoller(object):
def __init__(self, timeout=0.1):
self._fds = []
def release(self):
self._fds = []
def register(self, fd):
if fd not in self._fds:
self._fds.append(fd)
def unregister(self, fd):
if fd in self._fds:
self._fds.remove(fd)
def poll(self):
return self._fds
class App(object):
@cherrypy.expose
def ws(self):
assert cherrypy.request.ws_handler != None
def setup_engine():
# we don't need a HTTP server for this test
cherrypy.server.unsubscribe()
cherrypy.config.update({'log.screen': False})
cherrypy.engine.websocket = WebSocketPlugin(cherrypy.engine)
cherrypy.engine.websocket.subscribe()
cherrypy.engine.websocket.manager.poller = FakePoller()
cherrypy.tools.websocket = WebSocketTool()
config={'/ws': {'tools.websocket.on': True,
'tools.websocket.handler_cls': EchoWebSocket}}
cherrypy.tree.mount(App(), '/', config)
cherrypy.engine.start()
def teardown_engine():
cherrypy.engine.exit()
class CherryPyTest(unittest.TestCase):
def setUp(self):
setup_engine()
def tearDown(self):
teardown_engine()
def test_plugin(self):
manager = cherrypy.engine.websocket.manager
self.assertEqual(len(manager), 0)
s = MagicMock(spec=socket.socket)
s.recv.return_value = Frame(opcode=OPCODE_TEXT, body=b'hello',
fin=1, masking_key=os.urandom(4)).build()
h = EchoWebSocket(s, [], [])
cherrypy.engine.publish('handle-websocket', h, ('127.0.0.1', 0))
self.assertEqual(len(manager), 1)
self.assertTrue(h in manager)
# the following call to .close() on the
# websocket object will initiate
# the closing handshake
# This next line mocks the response
# from the client to actually
# complete the handshake.
# The manager will then remove the websocket
# from its pool
s.recv.return_value = Frame(opcode=OPCODE_CLOSE, body=b"ok we're done",
fin=1, masking_key=os.urandom(4)).build()
h.close()
# the poller runs a thread, give it time to get there
# just wait up to 5 seconds.
left_iteration = 50
while left_iteration:
left_iteration -= 1
time.sleep(.1)
if len(manager) == 0:
break
self.assertEqual(len(manager), 0)
if __name__ == '__main__':
suite = unittest.TestSuite()
loader = unittest.TestLoader()
for testcase in [CherryPyTest]:
tests = loader.loadTestsFromTestCase(testcase)
suite.addTests(tests)
unittest.TextTestRunner(verbosity=2).run(suite)