testcases.py 文件源码

def setUpClass(cls):
        super(TestCase, cls).setUpClass()
        if not connections_support_transactions():
            return
        cls.cls_atomics = cls._enter_atomics()

        if cls.fixtures:
            for db_name in cls._databases_names(include_mirrors=False):
                    try:
                        call_command('loaddata', *cls.fixtures, **{
                            'verbosity': 0,
                            'commit': False,
                            'database': db_name,
                        })
                    except Exception:
                        cls._rollback_atomics(cls.cls_atomics)
                        raise
        try:
            cls.setUpTestData()
        except Exception:
            cls._rollback_atomics(cls.cls_atomics)
            raise