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import sh
import unittest
class Qeeprom(unittest.TestCase):
__position = None
__uuid = None
__eeprompath = None
# varlist: position, uuid, eeprompath
def __init__(self, testname, testfunc, varlist):
super(Qeeprom, self).__init__(testfunc)
self._testMethodDoc = testname
if "position" in varlist:
self.__position = varlist["position"]
else:
raise Exception('position param inside Qeeprom must be defined')
if "uuid" in varlist:
self.__uuid = varlist["uuid"]
else:
raise Exception('uuid param inside Qeeprom must be defined')
if "eeprompath" in varlist:
self.__eeprompath = varlist["eeprompath"]
else:
raise Exception('eeprompath param inside Qeeprom must be defined')
def execute(self):
# write data into the eeprom
p = sh.dd(sh.echo(self._uuid), "of=" + self.__eeprompath, "bs=1", "seek=" + self.__position)
if p.exit_code == 0:
# read data from the eeprom
p = sh.dd("if=" + self.__eeprompath, "bs=1", "skip=" + self.__position, "count=" + len(self.__uuid))
if p.exit_code == 0:
uuid_rx = p.stdout.decode('ascii')
# compare both values
if (uuid_rx != self.__uuid):
self.fail("failed: mismatch between written and received values.")
else:
self.fail("failed: Unable to read from the EEPROM device.")
else:
self.fail("failed: Unable to write on the EEPROM device.")
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