def test_invalidUmask(self):
        config = twistd.ServerOptions()
        self.assertRaises(UsageError, config.parseOptions, ['--umask', 'abcdef'])
Prepare webdriver and virtual display for headless browser.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_twistd.py/ServerOptionsTest.test_invalidUmask--crossover with--dataset/ETHPy150Open DummyDivision/Tsune/terrain.py/start_browser