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annotate test/wsgi_liveserver.py @ 7916:4cca0ae9f901

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issue2551334 - get test suite running under windows https://stackoverflow.com/questions/59506097/python-requests-library-is-very-slow-on-windows/75425238#75425238 reports that the requests libary uses urllib3. On windows this tries (and retries) an IPv6 address if localhost is used in the url. This takes 2s per request to test IPv6, give up and use IPv4. At that rate, the rate limit is never reached and the rest_login_RateLimit test fails. This patch rewrites the base url to use 127.0.0.1 replacing localhost. It forced urllib3 to open only an IPv4 address and the speedup allows the test to pass.
author John Rouillard <rouilj@ieee.org>
date Sun, 28 Apr 2024 19:24:19 -0400
parents e9760702bf0c
children f6923d2ba9a5
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1 # -*- coding: utf-8 -*-
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2 """
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3 wsgi-liveserver provides a simple LiverServerTestCase class that can be used to
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4 help start a web server in the background to serve a WSGI compliant application
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5 for use with testing. Generally it will be used in conjuction with something
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6 like Selenium to perform a series of functional tests using a browser.
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7
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8 Licensed under the GNU GPL v3
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9
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10 Copyright (c) 2013 John Kristensen (unless explicitly stated otherwise).
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11 """
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12 import threading
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13 import socket
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14 import unittest
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15 from wsgiref.simple_server import make_server, WSGIRequestHandler
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16
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17 __author__ = 'John Kristensen'
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18 __version__ = '0.3.1'
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19 __license__ = 'GPLv3'
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20
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21
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22 class QuietHandler(WSGIRequestHandler):
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23 def log_request(*args, **kwargs):
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24 pass
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25
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26
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27 class LiveServerTestCase(unittest.TestCase):
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28
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29 port_range = (8080, 8090)
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30
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31 def create_app(self):
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32 """Create your wsgi app and return it."""
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33 raise NotImplementedError
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34
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35 def __call__(self, result=None):
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36 """
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37 Do some custom setup stuff and then hand off to TestCase to do its
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38 thing.
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39 """
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40 try:
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41 self._pre_setup()
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42 super(LiveServerTestCase, self).__call__(result)
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43 finally:
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44 self._post_teardown()
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45
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46 def url_base(self):
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47 """Return the url of the test server."""
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48 return 'http://{0}:{1}'.format(self.host, self.port)
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49
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50 def _pre_setup(self):
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51 """Setup and start the test server in the background."""
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52 self._server = None
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53
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54 self.host = 'localhost'
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55 self.port = self.port_range[0]
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56 self._thread = None
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57
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58 # Get the app
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59 self.app = self.create_app()
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60
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61 # Cycle through the port range to find a free port
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62 while self._server is None and self.port <= self.port_range[1]:
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63 try:
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64 self._server = make_server(self.host, self.port, self.app,
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65 handler_class=QuietHandler)
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66 except socket.error:
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67 self.port += 1
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68
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69 # No free port, raise an exception
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70 if self._server is None:
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71 raise socket.error('Ports {0}-{1} are all already in use'.format(
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72 *self.port_range))
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73
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74 # Start the test server in the background
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75 self._thread = threading.Thread(target=self._server.serve_forever)
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76 self._thread.start()
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77
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78 def _post_teardown(self):
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79 """Stop the test server."""
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80 if self._thread is not None:
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81 self._server.shutdown()
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82 self._server.server_close()
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83 self._thread.join()
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84 del self._server
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