fixtures.py 文件源码

def _setUp(self):
        super(RealPolicyFixture, self)._setUp()
        self.policy_dir = self.useFixture(fixtures.TempDir())
        self.policy_file = os.path.join(self.policy_dir.path,
                                        'policy.yaml')
        # Load the fake_policy data and add the missing default rules.
        policy_rules = yaml.safe_load(fake_policy.policy_data)
        self.add_missing_default_rules(policy_rules)
        with open(self.policy_file, 'w') as f:
            yaml.safe_dump(policy_rules, f)

        policy_opts.set_defaults(CONF)
        self.useFixture(
            ConfPatcher(policy_dirs=[], policy_file=self.policy_file,
                        group='oslo_policy'))

        deckhand.policy.reset()
        deckhand.policy.init()
        self.addCleanup(deckhand.policy.reset)

        if self.verify:
            self._install_policy_verification_hook()