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#! /usr/bin/python
#Python Serial Port Extension for Win32, Linux, BSD, Jython
#see __init__.py
#
#(C) 2001-2003 Chris Liechti <cliechti@gmx.net>
# this is distributed under a free software license, see license.txt
"""Some tests for the serial module.
Part of pyserial (http://pyserial.sf.net) (C)2002-2003 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, threading, time
import serial
#on which port should the tests be performed:
PORT=0
BAUDRATE=115200
#~ BAUDRATE=9600
class TestHighLoad(unittest.TestCase):
"""Test sending and receiving large amount of data"""
N = 16
#~ N = 1
def setUp(self):
self.s = serial.Serial(PORT,BAUDRATE, timeout=10)
def tearDown(self):
self.s.close()
def test0_WriteReadLoopback(self):
"""Send big strings, write/read order."""
for i in range(self.N):
q = ''.join(map(chr,range(256)))
self.s.write(q)
self.failUnless(self.s.read(len(q))==q, "expected a '%s' which was written before" % q)
self.failUnless(self.s.inWaiting()==0, "expected empty buffer after all sent chars are read")
def test1_WriteWriteReadLoopback(self):
"""Send big strings, multiple write one read."""
q = ''.join(map(chr,range(256)))
for i in range(self.N):
self.s.write(q)
read = self.s.read(len(q)*self.N)
self.failUnless(read==q*self.N, "expected what was written before. got %d bytes, expected %d" % (len(read), self.N*len(q)))
self.failUnless(self.s.inWaiting()==0, "expected empty buffer after all sent chars are read")
if __name__ == '__main__':
import sys
print __doc__
print "Testing port", PORT
sys.argv.append('-v')
# When this module is executed from the command-line, it runs all its tests
unittest.main()
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