test_openstack_utils.py 文件源码

def _test_source_credentials(self, msg, key='OS_TENANT_NAME',
                                 value='admin'):
        try:
            del os.environ[key]
        except:
            pass
        f = 'rc_file'
        with mock.patch('six.moves.builtins.open',
                        mock.mock_open(read_data=msg),
                        create=True) as m:
            m.return_value.__iter__ = lambda self: iter(self.readline, '')
            openstack_utils.source_credentials(f)
            m.assert_called_once_with(f, 'r')
            self.assertEqual(os.environ[key], value)