def test_extrasRequiresSerialDeps(self):
        self.assertIn(
            'pyserial',
            _EXTRAS_REQUIRE['serial']
        )
L{_EXTRAS_REQUIRE}'s C{serial} extra contains setuptools requirements
dataset/ETHPy150Open twisted/twisted/twisted/python/test/test_dist.py/OptionalDependenciesTests.test_extrasRequiresSerialDeps