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Chris Liechti33f0ec52015-08-06 16:37:21 +02001#!/usr/bin/env python
Chris Liechti33f0ec52015-08-06 16:37:21 +02002#
Chris Liechti7c032f12015-10-27 23:02:00 +01003# This file is part of pySerial - Cross platform serial port support for Python
Chris Liechti33f0ec52015-08-06 16:37:21 +02004# (C) 2015 Chris Liechti <cliechti@gmx.net>
Chris Liechti7c032f12015-10-27 23:02:00 +01005#
6# SPDX-License-Identifier: BSD-3-Clause
Chris Liechti33f0ec52015-08-06 16:37:21 +02007"""\
8Test RS485 related functionality.
9"""
10
11import unittest
12import serial
13import serial.rs485
14
15# on which port should the tests be performed:
16PORT = 0
17
Chris Liechti8e37ba92016-02-03 01:22:22 +010018
Chris Liechti33f0ec52015-08-06 16:37:21 +020019class Test_RS485_settings(unittest.TestCase):
20 """Test RS485 related functionality"""
21
22 def setUp(self):
23 # create a closed serial port
24 self.s = serial.serial_for_url(PORT, do_not_open=True)
25
26 def tearDown(self):
27 self.s.close()
28
29 def test_enable_RS485(self):
30 # XXX open() port - but will result in fail for most HW...
31 #~ self.s.open()
Chris Liechtidedd3b72015-12-11 20:44:22 +010032 self.assertEqual(self.s._rs485_mode, None, 'RS485 is disabled by default')
33 self.assertEqual(self.s.rs485_mode, None, 'RS485 is disabled by default')
Chris Liechti33f0ec52015-08-06 16:37:21 +020034 self.s.rs485_mode = serial.rs485.RS485Settings()
Chris Liechtidedd3b72015-12-11 20:44:22 +010035 self.assertTrue(self.s._rs485_mode is not None, 'RS485 is enabled')
36 self.assertTrue(self.s.rs485_mode is not None, 'RS485 is enabled')
Chris Liechti33f0ec52015-08-06 16:37:21 +020037 self.s.rs485_mode = None
Chris Liechtidedd3b72015-12-11 20:44:22 +010038 self.assertEqual(self.s._rs485_mode, None, 'RS485 is disabled again')
39 self.assertEqual(self.s.rs485_mode, None, 'RS485 is disabled again')
Chris Liechti33f0ec52015-08-06 16:37:21 +020040
41
42class Test_RS485_class(unittest.TestCase):
43 """Test RS485 class"""
44
45 def setUp(self):
Chris Liechtid73344d2015-08-06 17:52:51 +020046 self.s = serial.rs485.RS485(PORT, timeout=1)
Chris Liechti33f0ec52015-08-06 16:37:21 +020047
48 def tearDown(self):
49 self.s.close()
50
51 def test_RS485_class(self):
52 self.s.rs485_mode = serial.rs485.RS485Settings()
53 self.s.write(b'hello')
Chris Liechtidedd3b72015-12-11 20:44:22 +010054 self.assertEqual(self.s.read(5), b'hello')
Chris Liechti33f0ec52015-08-06 16:37:21 +020055
56
Chris Liechti33f0ec52015-08-06 16:37:21 +020057if __name__ == '__main__':
58 import sys
59 sys.stdout.write(__doc__)
60 if len(sys.argv) > 1:
61 PORT = sys.argv[1]
Chris Liechti3debab22016-06-20 22:52:22 +020062 sys.stdout.write("Testing port: {!r}\n".format(PORT))
Chris Liechti33f0ec52015-08-06 16:37:21 +020063 sys.argv[1:] = ['-v']
64 # When this module is executed from the command-line, it runs all its tests
65 unittest.main()