Mercurial > hg > configuration

annotate tests/unit.py @ 98:91e213025769

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author Jeff Hammel <jhammel@mozilla.com>
date Mon, 30 Apr 2012 11:07:17 -0700
parents 0804a706d6bf
children c530f6265deb
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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 os
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9 import sys
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10 import tempfile
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11 import unittest
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12
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13 try:
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14 import json
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15 except ImportError:
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16 import simplejson as json
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17
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18 from example import ExampleConfiguration # example configuration to test
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19
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20 # globals
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21 here = os.path.dirname(os.path.abspath(__file__))
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22
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23 class ConfigurationUnitTest(unittest.TestCase):
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25 def test_cli(self):
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26 """test command line interface"""
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27
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28 example = ExampleConfiguration()
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29
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30 # parse command line arguments
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31 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox'])
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32
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33 # ensure that the options appropriately get set
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34 self.assertEqual(bool(args), False) # no arguments
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35 self.assertEqual(options.develop, True)
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36 self.assertEqual(options.activeTests, ['ts'])
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37 self.assertEqual(options.browser_path, '/home/jhammel/bin/firefox')
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38
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39 # ensure that the configuration appropriately gets updated
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40 self.assertEqual(example.config['develop'], True)
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41 self.assertEqual(example.config['activeTests'], ['ts'])
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42 self.assertEqual(example.config['browser_path'], '/home/jhammel/bin/firefox')
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44 def test_configuration_providers(self):
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45 """test file-based configuration providers"""
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46 # requires json/simplejson to be installed
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47
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48 example = ExampleConfiguration()
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49
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50 # see what providers you got
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51 json_provider = example.configuration_provider('json')
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52 self.assertTrue(isinstance(json_provider, configuration.JSON))
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53
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54 # serialize to a temporary file
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55 filename = tempfile.mktemp(suffix='.json')
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56 self.assertEqual(example.filename2format(filename), 'json')
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57 self.assertFalse(os.path.exists(filename))
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58 config = {'browser_path': '/home/jhammel/bin/firefox',
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59 'activeTests': ['ts']}
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60 example(config)
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61 config['test_timeout'] = 1200 # default
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62 self.assertEqual(config, example.config)
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63 example.serialize(filename)
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64 self.assertTrue(os.path.exists(filename))
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65 serialized = json.loads(file(filename).read())
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66 self.assertEqual(serialized, config)
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67
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68 # deserialize
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69 deserialized = example.deserialize(filename)
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70 self.assertEqual(deserialized, config)
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71
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72 # cleanup
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73 if os.path.exists(filename):
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74 os.remove(filename)
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75
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76 def test_missing_values(self):
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77 """ensure that Configuration raises a missing value exception"""
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78
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79 example = ExampleConfiguration()
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80
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81 # monkey-patch the error method from optparse.OptionParser
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82 error_msg = []
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83 def error(msg):
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84 error_msg.append(msg)
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85 example.error = error
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86
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87 # trigger it
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88 example.parse_args(args=[])
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89 self.assertEqual(error_msg, ['Parameter browser_path is required but not present'])
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90
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91 def test_required(self):
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92 """ensure you have to have required values"""
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93
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94 example = ExampleConfiguration()
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95
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96 # ensure you get an exception
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97 missingvalueexception = None
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98 try:
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99 example()
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100 except configuration.MissingValueException, e:
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101 missingvalueexception = e
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102 self.assertTrue(isinstance(e, configuration.MissingValueException))
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103
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104 def test_multiple_configurations(self):
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105 """test having multiple configurations"""
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106
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107 # simple override
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108 args1 = ['-e', '/opt/bin/firefox']
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109
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110 # simple serialized file
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111 json_file = os.path.join(here, 'base.json')
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112 assert os.path.exists(json_file)
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113 json_config = json.loads(file(json_file).read())
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114
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115 # parse the json file
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116 example = ExampleConfiguration()
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117 example.parse_args([json_file])
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118 self.assertEqual(example.config, json_config)
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119
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120 # parse the json file with overrides
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121 example = ExampleConfiguration()
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122 example.parse_args([json_file] + args1)
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123 config = json_config.copy()
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124 config['browser_path'] = '/opt/bin/firefox'
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125 self.assertEqual(example.config, config)
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126
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127 # it shouldn't matter in which order the arguments are
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128 example = ExampleConfiguration()
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129 example.parse_args(args1 + [json_file])
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130 self.assertEqual(example.config, config)
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131
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132 # Now a tricky case:
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133 # the default value for test_timeout is 1200:
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134 example = ExampleConfiguration()
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135 self.assertEqual(example.options['test_timeout']['default'], 1200)
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136 # The value from base.json is 60:
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137 self.assertEqual(json_config['test_timeout'], 60)
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138 self.assertEqual(config['test_timeout'], 60)
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139 # but we can override it back from the "command line"
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140 example.parse_args(args1 + [json_file, '--test_timeout', '1200'])
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141 config['test_timeout'] = 1200
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142 self.assertEqual(example.config, config)
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143
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144 if __name__ == '__main__':
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145 unittest.main()