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annotate test/wsgi_liveserver.py @ 8458:15a92b0a9b79

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fix: make user_src_input generate valid javascript user_src_input used to generate False if edit_ok == False in this statement: tal:attributes="onblur python:edit_ok and 'split_name(this)'; but False isn't a boolean in javascript, so it throws an error in the console. Changed to use: tal:attributes="onblur python:'split_name(this)' if edit_ok else ''; which generates an empty onblur if the field is not editable.
author John Rouillard <rouilj@ieee.org>
date Thu, 25 Sep 2025 23:30:07 -0400
parents 3630246c5c36
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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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