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https://github.com/Hopiu/linkchecker.git
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8489730eac
In cast we forget or somebody else wants to tackle this. After all, the assertion error + traceback shows up at the end of the test run, and it's not immediately clear which test is to blame for it!
115 lines
3.7 KiB
Python
115 lines
3.7 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2012 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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Define http test support classes for LinkChecker tests.
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"""
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import sys
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import os
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import time
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import threading
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import telnetlib
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import miniboa
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from . import LinkCheckTest
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TIMEOUT = 5
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class TelnetServerTest (LinkCheckTest):
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"""Start/stop a Telnet server that can be used for testing."""
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def __init__ (self, methodName='runTest'):
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"""Init test class and store default ftp server port."""
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super(TelnetServerTest, self).__init__(methodName=methodName)
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self.host = 'localhost'
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self.port = None
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def get_url(self, user=None, password=None):
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if user is not None:
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if password is not None:
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netloc = u"%s:%s@%s" % (user, password, self.host)
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else:
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netloc = u"%s@%s" % (user, self.host)
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else:
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netloc = self.host
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return u"telnet://%s:%d" % (netloc, self.port)
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def setUp (self):
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"""Start a new Telnet server in a new thread."""
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deadline = time.time() + 10 * TIMEOUT
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self.port = start_server(self.host, 0, deadline=deadline,
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testcase=self.id())
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self.assertFalse(self.port is None)
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def tearDown(self):
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"""Send QUIT request to telnet server."""
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try:
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stop_server(self.host, self.port)
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except Exception:
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pass
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def start_server (host, port, deadline, testcase):
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# Instantiate Telnet server class and listen to host:port
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clients = []
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def on_connect(client):
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clients.append(client)
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client.send("Telnet test server\n")
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server = miniboa.TelnetServer(port=port, address=host, on_connect=on_connect)
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port = server.server_socket.getsockname()[1]
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t = threading.Thread(None, serve_forever, args=(server, clients, deadline, testcase))
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t.start()
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# wait for server to start up
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tries = 0
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while tries < 5:
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tries += 1
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try:
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client = telnetlib.Telnet(timeout=TIMEOUT)
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client.open(host, port)
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client.write("exit\n")
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break
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except:
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time.sleep(0.5)
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return port
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def stop_server (host, port):
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"""Stop a running FTP server."""
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client = telnetlib.Telnet(timeout=TIMEOUT)
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client.open(host, port)
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client.write("stop\n")
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def serve_forever(server, clients, deadline, testcase):
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"""Run poll loop for server."""
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while True:
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if time.time() > deadline:
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# It could be that the test is very slow, but that's unlikely.
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raise AssertionError('deadlock detected in %s, aborting' % testcase)
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server.poll()
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for client in clients:
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if client.active and client.cmd_ready:
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if not handle_cmd(client):
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return
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def handle_cmd(client):
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"""Handle telnet clients."""
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msg = client.get_command().lower()
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if msg == 'exit':
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client.active = False
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elif msg == 'stop':
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return False
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return True
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