impersonation.py 文件源码

def setUp(self):
        self.dagbag = models.DagBag(
            dag_folder=TEST_DAG_FOLDER,
            include_examples=False,
        )
        try:
            subprocess.check_output(['sudo', 'useradd', '-m', TEST_USER, '-g',
                                     str(os.getegid())])
        except OSError as e:
            if e.errno == errno.ENOENT:
                raise unittest.SkipTest(
                    "The 'useradd' command did not exist so unable to test "
                    "impersonation; Skipping Test. These tests can only be run on a "
                    "linux host that supports 'useradd'."
                )
            else:
                raise unittest.SkipTest(
                    "The 'useradd' command exited non-zero; Skipping tests. Does the "
                    "current user have permission to run 'useradd' without a password "
                    "prompt (check sudoers file)?"
                )