test_unix_events.py 文件源码

def test_remove_signal_handler_error2(self, m_signal):
        m_signal.NSIG = signal.NSIG
        self.loop.add_signal_handler(signal.SIGHUP, lambda: True)

        class Err(OSError):
            errno = errno.EINVAL
        m_signal.signal.side_effect = Err

        self.assertRaises(
            RuntimeError, self.loop.remove_signal_handler, signal.SIGHUP)