from test.helpers.syscmd import SysCommand
import unittest

class Qram(unittest.TestCase):

    def __init__(self, testname, testfunc, memSize):
        super(Qram, self).__init__(testfunc)
        self.__memSize = memSize
        self._testMethodDoc = testname

    def execute(self):
        str_cmd= "free -m"
        free_command = SysCommand("free_ram", str_cmd)
        if free_command.execute() == 0:
            self.__raw_out = free_command.getOutput()
            if self.__raw_out == "":
                return -1
            lines = free_command.getOutput().splitlines()
            aux = [int(s) for s in lines[1].split() if s.isdigit()]
            self.failUnless(int(aux[0])>int(self.__memSize),"failed: total ram memory size lower than expected")
        else:
            self.fail("failed: could not complete iperf command")