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Diffstat (limited to 'test/test_readline.py')
-rw-r--r-- | test/test_readline.py | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/test/test_readline.py b/test/test_readline.py new file mode 100644 index 0000000..34b807b --- /dev/null +++ b/test/test_readline.py @@ -0,0 +1,104 @@ +#! /usr/bin/env python +# +# This file is part of pySerial - Cross platform serial port support for Python +# (C) 2010-2015 Chris Liechti <cliechti@gmx.net> +# +# SPDX-License-Identifier: BSD-3-Clause +"""\ +Some tests for the serial module. +Part of pyserial (http://pyserial.sf.net) (C)2010 cliechti@gmx.net + +Intended to be run on different platforms, to ensure portability of +the code. + +For all these tests a simple hardware is required. +Loopback HW adapter: +Shortcut these pin pairs: + TX <-> RX + RTS <-> CTS + DTR <-> DSR + +On a 9 pole DSUB these are the pins (2-3) (4-6) (7-8) +""" + +import unittest +import sys +import serial + +#~ print serial.VERSION + +# on which port should the tests be performed: +PORT = 'loop://' + +if sys.version_info >= (3, 0): + def data(string): + return bytes(string, 'latin1') +else: + def data(string): + return string + + +class Test_Readline(unittest.TestCase): + """Test readline function""" + + def setUp(self): + self.s = serial.serial_for_url(PORT, timeout=1) + + def tearDown(self): + self.s.close() + + def test_readline(self): + """Test readline method""" + self.s.write(serial.to_bytes([0x31, 0x0a, 0x32, 0x0a, 0x33, 0x0a])) + self.assertEqual(self.s.readline(), serial.to_bytes([0x31, 0x0a])) + self.assertEqual(self.s.readline(), serial.to_bytes([0x32, 0x0a])) + self.assertEqual(self.s.readline(), serial.to_bytes([0x33, 0x0a])) + # this time we will get a timeout + self.assertEqual(self.s.readline(), serial.to_bytes([])) + + def test_readlines(self): + """Test readlines method""" + self.s.write(serial.to_bytes([0x31, 0x0a, 0x32, 0x0a, 0x33, 0x0a])) + self.assertEqual( + self.s.readlines(), + [serial.to_bytes([0x31, 0x0a]), serial.to_bytes([0x32, 0x0a]), serial.to_bytes([0x33, 0x0a])] + ) + + def test_xreadlines(self): + """Test xreadlines method (skipped for io based systems)""" + if hasattr(self.s, 'xreadlines'): + self.s.write(serial.to_bytes([0x31, 0x0a, 0x32, 0x0a, 0x33, 0x0a])) + self.assertEqual( + list(self.s.xreadlines()), + [serial.to_bytes([0x31, 0x0a]), serial.to_bytes([0x32, 0x0a]), serial.to_bytes([0x33, 0x0a])] + ) + + def test_for_in(self): + """Test for line in s""" + self.s.write(serial.to_bytes([0x31, 0x0a, 0x32, 0x0a, 0x33, 0x0a])) + lines = [] + for line in self.s: + lines.append(line) + self.assertEqual( + lines, + [serial.to_bytes([0x31, 0x0a]), serial.to_bytes([0x32, 0x0a]), serial.to_bytes([0x33, 0x0a])] + ) + + def test_alternate_eol(self): + """Test readline with alternative eol settings (skipped for io based systems)""" + if hasattr(self.s, 'xreadlines'): # test if it is our FileLike base class + self.s.write(serial.to_bytes("no\rno\nyes\r\n")) + self.assertEqual( + self.s.readline(eol=serial.to_bytes("\r\n")), + serial.to_bytes("no\rno\nyes\r\n")) + + +if __name__ == '__main__': + import sys + sys.stdout.write(__doc__) + if len(sys.argv) > 1: + PORT = sys.argv[1] + sys.stdout.write("Testing port: {!r}\n".format(PORT)) + sys.argv[1:] = ['-v'] + # When this module is executed from the command-line, it runs all its tests + unittest.main() |