Test the Memory Limit

Run the following automation script:

from multiprocessing import Process
import os


def big_string(size):
    sys.stdin = os.fdopen(0, "r")
    s = 'a' * 1024
    while len(s) < size:
        s = s * 2
    print('completed creating string of length: {}'.format(len(s)))


size = 1 * 1024 * 1024 * 1024
p = Process(target=big_string, args=(size, ))
p.start()
p.join()
if p.exitcode != 0:
    return_error("Return code from sub process indicates failure: {}".format(p.exitcode))
else:
    print("Success allocating memory of size: {}".format(size))

The command returns an error when it fails to allocate 1 GB of memory. For example: