def test_root(self):
        self._testUIDGIDSwitch(0, 0, 0, 0, [], [])
        self._testUIDGIDSwitch(0, 0, 1, 0, [1, 0], [])
        self._testUIDGIDSwitch(0, 0, 0, 1, [], [1, 0])
        self._testUIDGIDSwitch(0, 0, 1, 1, [1, 0], [1, 0])
Check UID/GID switches when current effective UID is root.
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/python/test/test_util.py/RunAsEffectiveUserTests.test_root