def test_raises_unknown_exception(self):
    with testtools.ExpectedException(RuntimeError):
        with mock.patch.object(utils, 'execute', side_effect=RuntimeError()):
            utils.find_child_pids((- 1))
def test_raises_unknown_exception(self):
    with testtools.ExpectedException(RuntimeError):
        with mock.patch.object(utils, 'execute', side_effect=RuntimeError()):
            utils.find_child_pids((- 1))