test_rfc2217.py 文件源码

def test_failed_connection(self):
        # connection to closed port
        s = serial.serial_for_url('rfc2217://127.99.99.99:2217', do_not_open=True)
        self.assertRaises(serial.SerialException, s.open)
        self.assertFalse(s.is_open)
        s.close()  # no errors expected
        # invalid address
        s = serial.serial_for_url('rfc2217://127goingtofail', do_not_open=True)
        self.assertRaises(serial.SerialException, s.open)
        self.assertFalse(s.is_open)
        s.close()  # no errors expected
        # close w/o open is also OK
        s = serial.serial_for_url('rfc2217://irrelevant', do_not_open=True)
        self.assertFalse(s.is_open)
        s.close()  # no errors expected