def test_common_options(self):
parser = optparse.OptionParser()
self.assertEquals(0, len(parser.option_groups))
config.add_common_options(parser)
self.assertEquals(1, len(parser.option_groups))
expected_options = ['--verbose', '--debug', '--config-file']
for e in expected_options:
self.assertTrue(parser.option_groups[0].get_option(e),
"Missing required common option: %s" % e)
def test_parse_options(self):
# test empty args and that parse_options() returns a mapping
# of typed values
parser = optparse.OptionParser()
config.add_common_options(parser)
parsed_options, args = config.parse_options(parser, [])
expected_options = {'verbose': False, 'debug': False,
'config_file': None}
self.assertEquals(expected_options, parsed_options)
# test non-empty args and that parse_options() returns a mapping
# of typed values matching supplied args
parser = optparse.OptionParser()
config.add_common_options(parser)
parsed_options, args = config.parse_options(parser, ['--verbose'])
expected_options = {'verbose': True, 'debug': False,
'config_file': None}
self.assertEquals(expected_options, parsed_options)
# test non-empty args that contain unknown options raises
# a SystemExit exception. Not ideal, but unfortunately optparse
# raises a sys.exit() when it runs into an error instead of raising
# something a bit more useful for libraries. optparse must have been
# written by the same group that wrote unittest ;)
parser = optparse.OptionParser()
config.add_common_options(parser)
self.assertRaises(SystemExit, config.parse_options,
parser, ['--unknown'])