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annotate tests/unit.py @ 125:c6a41a60afc0

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configuration/configuration.py
author Jeff Hammel <jhammel@mozilla.com>
date Tue, 17 Sep 2013 23:22:23 -0700
parents 9d19ed8fd883
children dff886188b55
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1 #!/usr/bin/env python
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2
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3 """
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4 unit tests
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5 """
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6
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7 import configuration
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8 import datetime
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9 import os
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10 import sys
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11 import tempfile
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12 import unittest
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13
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14 try:
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15 import json
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16 except ImportError:
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17 import simplejson as json
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18
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19 from example import ExampleConfiguration # example configuration to test
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20
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21 # globals
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22 here = os.path.dirname(os.path.abspath(__file__))
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24 class ConfigurationUnitTest(unittest.TestCase):
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26 def test_cli(self):
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27 """test command line interface"""
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28
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29 example = ExampleConfiguration()
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30
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31 # parse command line arguments
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32 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox'])
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33
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34 # ensure that the options appropriately get set
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35 self.assertEqual(bool(args), False) # no arguments
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36 self.assertEqual(options.develop, True)
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37 self.assertEqual(options.activeTests, ['ts'])
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38 self.assertEqual(options.browser_path, '/home/jhammel/bin/firefox')
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39
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40 # ensure that the configuration appropriately gets updated
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41 self.assertEqual(example.config['develop'], True)
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42 self.assertEqual(example.config['activeTests'], ['ts'])
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43 self.assertEqual(example.config['browser_path'], '/home/jhammel/bin/firefox')
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44
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45 def test_dict(self):
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46 """test dictionary parsing from the "command line" """
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47
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48
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49 # test adding a preference
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50 example = ExampleConfiguration()
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51 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox',
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52 '--pref', 'hangmonitor.timeout=0'])
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53 self.assertTrue('hangmonitor.timeout' in options.preferences)
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54
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55 # test overriding a preference
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56 example = ExampleConfiguration()
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57 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox',
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58 '--pref', 'browser.bookmarks.max_backups=1'])
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59 self.assertTrue(options.preferences['browser.bookmarks.max_backups'] == '1')
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62
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63 def test_configuration_providers(self):
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64 """test file-based configuration providers"""
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65 # requires json/simplejson to be installed
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66
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67 example = ExampleConfiguration()
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68
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69 # see what providers you got
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70 json_provider = example.configuration_provider('json')
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71 self.assertTrue(isinstance(json_provider, configuration.JSON))
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72
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73 # serialize to a temporary file
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74 filename = tempfile.mktemp(suffix='.json')
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75 self.assertEqual(example.filename2format(filename), 'json')
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76 self.assertFalse(os.path.exists(filename))
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77 config = {'browser_path': '/home/jhammel/bin/firefox',
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78 'activeTests': ['ts']}
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79 example(config)
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80 config['test_timeout'] = 1200 # default
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81 config['preferences'] = {"browser.bookmarks.max_backups": 0,
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82 "browser.cache.disk.smart_size.enabled": False}
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83
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84 # ensure they are equal
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85 self.assertEqual(config, example.config)
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86 example.serialize(filename)
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87 self.assertTrue(os.path.exists(filename))
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88 serialized = json.loads(file(filename).read())
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89 self.assertEqual(serialized, config)
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90
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91 # deserialize
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92 deserialized = example.deserialize(filename)
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93 self.assertEqual(deserialized, config)
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94
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95 # cleanup
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96 if os.path.exists(filename):
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97 os.remove(filename)
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98
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99 def test_missing_values(self):
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100 """ensure that Configuration raises a missing value exception"""
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101
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102 example = ExampleConfiguration()
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103
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104 # monkey-patch the error method from optparse.OptionParser
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105 error_msg = []
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106 def error(msg):
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107 error_msg.append(msg)
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108 example.error = error
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109
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110 # trigger it
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111 example.parse_args(args=[])
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112 self.assertEqual(error_msg, ['Parameter browser_path is required but not present'])
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113
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114 def test_required(self):
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115 """ensure you have to have required values"""
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116
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117 example = ExampleConfiguration()
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118
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119 # ensure you get an exception
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120 missingvalueexception = None
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121 try:
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122 example()
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123 except configuration.MissingValueException, e:
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124 missingvalueexception = e
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125 self.assertTrue(isinstance(e, configuration.MissingValueException))
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126
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127
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128 def test_multiple_configurations(self):
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129 """test having multiple configurations"""
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130
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131 # simple override
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132 args1 = ['-e', '/opt/bin/firefox']
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133
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134 # simple serialized file
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135 json_file = os.path.join(here, 'base.json')
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136 assert os.path.exists(json_file)
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137 json_config = json.loads(file(json_file).read())
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138
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139 # parse the json file
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140 example = ExampleConfiguration()
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141 example.parse_args([json_file])
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142 self.assertEqual(example.config, json_config)
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143
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144 # parse the json file with overrides
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145 example = ExampleConfiguration()
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146 example.parse_args([json_file] + args1)
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147 config = json_config.copy()
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148 config['browser_path'] = '/opt/bin/firefox'
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149 self.assertEqual(example.config, config)
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150
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151 # it shouldn't matter in which order the arguments are
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152 example = ExampleConfiguration()
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153 example.parse_args(args1 + [json_file])
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154 self.assertEqual(example.config, config)
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155
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156 # Now a tricky case:
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157 # the default value for test_timeout is 1200:
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158 example = ExampleConfiguration()
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159 self.assertEqual(example.options['test_timeout']['default'], 1200)
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160 # The value from base.json is 60:
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161 self.assertEqual(json_config['test_timeout'], 60)
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162 self.assertEqual(config['test_timeout'], 60)
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163 # but we can override it back from the "command line"
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164 example.parse_args(args1 + [json_file, '--test_timeout', '1200'])
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165 config['test_timeout'] = 1200
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166 self.assertEqual(example.config, config)
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167
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168 def test_extend(self):
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169
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170 # default preferences
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171 example = ExampleConfiguration()
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172 default_prefs = {"browser.bookmarks.max_backups": 0,
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173 "browser.cache.disk.smart_size.enabled": False}
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174 example.parse_args(['-a', 'ts', '-e', '/opt/bin/firefox'])
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175 self.assertEqual(example.config['preferences'], default_prefs)
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176
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177 # now extend them
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178 example = ExampleConfiguration()
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179 default_prefs['network.dns.ipv4OnlyDomains'] = 'localhost'
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180 tf = tempfile.mktemp()
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181 f = file(tf, 'w')
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182 f.write(json.dumps({'preferences': {'network.dns.ipv4OnlyDomains': 'localhost'}}))
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183 f.close()
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184 example.parse_args(['-a', 'ts', '-e', '/opt/bin/firefox', tf])
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185 self.assertEqual(example.config['preferences'], default_prefs)
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186 os.remove(tf)
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187
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188 def test_typecast(self):
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189 """casting example"""
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190
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191 def todate(string):
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192 return datetime.datetime.strptime(string, "%Y%m%d")
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193
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194 # make an example class
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195 class TypecastExample(configuration.Configuration):
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196 options = {'datestring': {'type': todate}}
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197 example = TypecastExample()
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198
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199 # parse a date string
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200 example({'datestring': "20120704"})
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201
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202 # ensure it works correctly
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203 expected = datetime.datetime(2012, 7, 4, 0, 0)
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204 self.assertEqual(example.config['datestring'], expected)
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205
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206
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207 def test_added(self):
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208 """test that we keep track of things added to the configuration"""
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209
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210 # make an example class
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211 class AddedExample(configuration.Configuration):
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212 options = {'foo': {},
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213 'bar': {}}
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214
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215 # parse it; there should be nothing
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216 instance = AddedExample()
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217 instance()
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218 self.assertEqual(instance.added, set())
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219
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220 # parse it; there should be one thing
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221 instance = AddedExample()
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222 instance({'foo': 'foo'})
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223 self.assertEqual(instance.added, set(['foo']))
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224
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225 # parse it; there should be two things
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226 instance = AddedExample()
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227 instance({'foo': 'foo'}, {'foo': 'FOO', 'bar': 'bar'})
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228 self.assertEqual(instance.added, set(['foo', 'bar']))
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229
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230 if __name__ == '__main__':
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231 unittest.main()