Doceme/py-spidev wrmsg test cases

py-spidev-wrmsg.py

#!/usr/bin/env python

# Written by Tim Wood.
# This code is released into the public domain

import time
import os
import sys
import RPi.GPIO as GPIO
import spidev
import pdb

spi = spidev.SpiDev()
spi.open(0, 0)
DEBUG = 0
IS_TEST = 0

# Negative test cases; all should report wrmsg_ messages from spidev_module.c and continue
try:
	r = spi.xfer2([])
except Exception as exc:
	print exc

try:
	ta = []
	for i in range(4097): 
		ta.append(i)

	r = spi.xfer2(ta)
except Exception as exc:
	print exc

try:
	r = spi.xfer2([ "0x1234567892345678901218195739184" ])
except Exception as exc:
	print exc

spi.close()
sys.exit(0)