annotate MoinMoin/_tests/__init__.py @ 83:3bf0b6c09275

Updated CHANGES. imported from: moin--main--1.5--patch-85
author Alexander Schremmer <alex@alexanderweb.de.tla>
date Thu, 06 Oct 2005 16:43:46 +0000
parents df348d27f1fc
children 0c25ccdc8f37
rev   line source
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1 # -*- coding: iso-8859-1 -*-
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2 """
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3 MoinMoin Testing Framework
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4 --------------------------
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5
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6 All test modules must be named test_modulename to be included in the
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7 test suit. If you are testing a package, name the test module
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8 test_pakcage_module.
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9
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10 Each test_ module may contain test case classes sub classed from
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11 unittest.TestCase or subclass of it. Previous versions required TestCase
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12 suffix, but now its only a convention.
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13
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14 Each test case class may contain multiply test methods, that must start
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15 with 'test'. Those methods will be run by the test suites.
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16
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17 Test that need the current request, for example to create a page
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18 instance, can refer to self.request. It is injected into all test case
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19 classes by the framework.
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20
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21 Tests that require certain configuration, like section_numbers = 1, must
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22 use a TestConfig to create the required configuration before the
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23 test. Deleting the TestConfig instance will restore the previous
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24 configuration.
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25
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26 See _test_template.py for an example, and use it to create new tests.
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27
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28 Typical Usage
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29 -------------
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30
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31 Running all test in this package::
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32
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33 from MoinMoin._tests import run
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34 run(request)
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35
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36 Running only few modules::
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37
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38 run(request, names=['test_this', 'test_that'])
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39
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40 @copyright: 2002-2004 by Jürgen Hermann <jh@web.de>
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41 @license: GNU GPL, see COPYING for details.
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42 """
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43
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44 from unittest import TestLoader, TextTestRunner
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45
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46
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47 class TestSkipped(Exception):
0
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48 """ Raised when a tests is skipped """
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49
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50 TestSkiped = TestSkipped # ensure a stable interface
0
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51
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52 class TestConfig:
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53 """ Custom configuration for unit tests
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54
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55 Some test assume specific configuration, and will fail if the wiki admin
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56 will change the configuration. For example, DateTime macro test assume
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57 the default datetime_fmt.
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58
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59 When you set custom values in a TestConfig, the previous values are saved,
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60 and when the TestConfig is deleted, they are restored automatically.
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61
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62 Typical Usage
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63 ------------
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64 ::
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65 from MoinMoin._tests import TestConfig
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66 class SomeTestCase(unittest.TestCase):
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67 def setUp(self):
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68 self.config = TestConfig(self.request,
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69 defaults=key_list, key=value,...)
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70 def tearDown(self):
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71 del self.config
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72 def testSomething(self):
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73 # test that needs those defaults and custom values
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74 """
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75
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76 def __init__(self, request, defaults=(), **custom):
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77 """ Create temporary configuration for a test
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78
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79 @param request: current request
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80 @param defaults: list of keys that should use the default value
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81 @param **custom: other keys using non default values, or new keys
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82 that request.cfg does not have already
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83 """
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84 self.request = request
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85 self.old = {} # Old config values
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86 self.new = [] # New added attributes
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87 self.setDefaults(defaults)
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88 self.setCustom(**custom)
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89
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90 def setDefaults(self, defaults=()):
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91 """ Set default values for keys in defaults list
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92
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93 Non existing default will raise an AttributeError.
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94 """
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95 from MoinMoin.multiconfig import DefaultConfig
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96 for key in defaults:
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97 self._setattr(key, getattr(DefaultConfig, key))
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98
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99 def setCustom(self, **custom):
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100 """ Set custom values """
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101 for key, value in custom.items():
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102 self._setattr(key, value)
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103
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104 def _setattr(self, key, value):
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105 """ Set a new value for key saving new added keys """
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106 if hasattr(self.request.cfg, key):
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107 self.old[key] = getattr(self.request.cfg, key)
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108 else:
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109 self.new.append(key)
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110 setattr(self.request.cfg, key, value)
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111
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112 def __del__(self):
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113 """ Restore previous request.cfg
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114
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115 Set old keys to old values and delete new keys.
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116 """
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117 for key, value in self.old.items():
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118 setattr(self.request.cfg, key, value)
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119 for key in self.new:
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120 delattr(self.request.cfg, key)
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121
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122
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123 class MoinTestLoader(TestLoader):
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124 """ Customized test loader that support long running process
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125
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126 To enable testing long running process, we inject the current
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127 request into each test case class. Later, each test can refer to
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128 request as self.request.
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129 """
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130 def __init__(self, request):
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131 self.request = request
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132
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133 def loadTestsFromTestCase(self, testCaseClass):
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134 testCaseClass.request = self.request
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135 return TestLoader.loadTestsFromTestCase(self, testCaseClass)
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136
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137 def loadTestsFromModuleNames(self, names):
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138 """ Load tests from qualified module names, eg. a.b.c
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139
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140 loadTestsFromNames is broken, hiding ImportErrros in test
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141 modules. This method is less flexsible but works correctly.
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142 """
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143 names = ['%s.%s' % (__name__, name) for name in names]
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144 suites = []
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145 for name in names:
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146 module = __import__(name, globals(), {}, ['dummy'])
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147 suites.append(self.loadTestsFromModule(module))
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148 return self.suiteClass(suites)
0
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149
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150
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151 def makeSuite(request, names=None):
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152 """ Create test suites from modules in names
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153
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154 @param request: current request
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155 @param names: module names to get tests from. If the list is empty,
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156 all test modules in the _tests package are used.
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157 @rtype: C{unittest.TestSuite}
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158 @return: test suite with all test cases in names
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159 """
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160 if not names:
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161 from MoinMoin.util.pysupport import getPackageModules
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162 names = getPackageModules(__file__)
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163 names = [name for name in names if name.startswith('test_')]
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164 caseInsensitiveCompare = lambda a, b: cmp(a.lower(), b.lower())
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165 names.sort(caseInsensitiveCompare)
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166
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167 return MoinTestLoader(request).loadTestsFromModuleNames(names)
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168
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169
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170 def run(request=None, names=None):
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171 """ Run test suit
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172
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173 @param request: current request
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174 @param names: list fully qualified module names to test,
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175 e.g MoinMoin._tests.test_error
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176 """
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177 if request is None:
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178 from MoinMoin.request import RequestCLI
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179 from MoinMoin.user import User
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180 request = RequestCLI()
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181 request.form = request.args = request.setup_args()
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182 request.user = User(request)
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183
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184 suite = makeSuite(request, names)
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185 TextTestRunner(stream=request, verbosity=2).run(suite)