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annotate test/wsgi_liveserver.py @ 8423:94eed885e958

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feat: add support for using dictConfig to configure logging. Basic logging config (one level and one output file non-rotating) was always possible from config.ini. However the LOGGING_CONFIG setting could be used to load an ini fileConfig style file to set various channels (e.g. roundup.hyperdb) (also called qualname or tags) with their own logging level, destination (rotating file, socket, /dev/null) and log format. This is now a deprecated method in newer logging modules. The dictConfig format is preferred and allows disabiling other loggers as well as invoking new loggers in local code. This commit adds support for it reading the dict from a .json file. It also implements a comment convention so you can document the dictConfig. configuration.py: new code test_config.py: test added for the new code. admin_guide.txt, upgrading.txt CHANGES.txt: docs added upgrading references the section in admin_guid.
author John Rouillard <rouilj@ieee.org>
date Tue, 19 Aug 2025 22:32:46 -0400
parents 3630246c5c36
children
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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 errno
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13 import socket
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14 import threading
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15 import unittest
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16 from wsgiref.simple_server import WSGIRequestHandler, make_server
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17
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18 __author__ = 'John Kristensen'
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19 __version__ = '0.3.1'
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20 __license__ = 'GPLv3'
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21
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22 """
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23 Classmethod probe_ports() added by John Rouillard 2024.
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24 """
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25
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26
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27 class QuietHandler(WSGIRequestHandler):
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28 def log_request(*args, **kwargs):
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29 pass
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30
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31
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32 class LiveServerTestCase(unittest.TestCase):
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33
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34 port_range = (8080, 8090)
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35
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36 def create_app(self):
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37 """Create your wsgi app and return it."""
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38 raise NotImplementedError
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39
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40 def __call__(self, result=None):
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41 """
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42 Do some custom setup stuff and then hand off to TestCase to do its
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43 thing.
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44 """
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45 try:
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46 self._pre_setup()
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47 super(LiveServerTestCase, self).__call__(result)
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48 finally:
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49 self._post_teardown()
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50
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51 def url_base(self):
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52 """Return the url of the test server."""
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53 return 'http://{0}:{1}'.format(self.host, self.port)
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54
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55 def _pre_setup(self):
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56 """Setup and start the test server in the background."""
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57 self._server = None
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58
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59 self.host = 'localhost'
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60 self.port = self.port_range[0]
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61 self._thread = None
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62
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63 # Get the app
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64 self.app = self.create_app()
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65
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66 # Cycle through the port range to find a free port
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67 while self._server is None and self.port <= self.port_range[1]:
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68 try:
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69 self._server = make_server(self.host, self.port, self.app,
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70 handler_class=QuietHandler)
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71 except socket.error:
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72 self.port += 1
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73
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74 # No free port, raise an exception
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75 if self._server is None:
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76 raise socket.error('Ports {0}-{1} are all already in use'.format(
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77 *self.port_range))
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78
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79 # Start the test server in the background
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80 self._thread = threading.Thread(target=self._server.serve_forever)
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81 self._thread.start()
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82
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83 def _post_teardown(self):
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84 """Stop the test server."""
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85 if self._thread is not None:
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86 self._server.shutdown()
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87 self._server.server_close()
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88 self._thread.join()
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89 del self._server
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90
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91 @classmethod
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92 def probe_ports(cls, start=port_range[0], end=port_range[1]):
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93
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94 port = start
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95
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96 while port <= end:
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97 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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98 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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99
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100 try:
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101 s.connect(('127.0.0.1', port))
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102 except socket.error as e:
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103 if not hasattr(e, 'args') or e.args[0] != errno.ECONNREFUSED:
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104 raise
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105 return port
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106 else:
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107 s.close()
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108 port += 1
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109
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110 return None
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