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import unittest
import os
class Qeeprom(unittest.TestCase):
params = None
__resultlist = None # resultlist is a python list of python dictionaries
__QEepromName = None
__i2cBus = None
__device = None
# varlist: position, eeprompath
def __init__(self, testname, testfunc, varlist):
self.params = varlist
super(Qeeprom, self).__init__(testfunc)
self._testMethodDoc = testname
self.__xmlObj = varlist["xml"]
self.__QEepromName = varlist.get('name', 'qeeprom')
self.__i2cAddress = varlist.get('i2c_address', self.__xmlObj.getKeyVal(self.__QEepromName, "i2c_address", "0050"))
self.__i2cBus = varlist.get('i2c_bus', self.__xmlObj.getKeyVal(self.__QEepromName, "i2c_bus", "0"))
self.__device = '/sys/bus/i2c/devices/{}-{}/eeprom'.format(self.__i2cBus, self.__i2cAddress)
self.__resultlist = []
def __check_device(self):
if os.path.isfile(self.__device):
return True
return False
def __eeprom_write(self, data):
try:
f = open(self.__device, "wb")
f.write(data)
f.close()
except IOError as Error:
return False, '{}'.format(Error.errno)
return True, ''
def __eeprom_read(self, size):
try:
f = open(self.__device, "rb")
data = f.read(size)
f.close()
except IOError as Error:
return False, '{}'.format(Error.errno)
return True, data
def execute(self):
if not self.__check_device():
self.fail("cannot open device {}".format(self.__device))
data = bytes('AbcDeFgHijK098521', 'utf-8')
v, w = self.__eeprom_write(data)
if not v:
self.fail("eeprom: {} write test failed".format(w))
v, r = self.__eeprom_read(len(data))
if not v:
self.fail("eeprom: {} read test failed".format(r))
if r != data:
self.fail("mismatch between write and read bytes")
def getresults(self):
return self.__resultlist
def gettextresult(self):
return ""
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