def METHOD_NAME(out_filename, gold_out_filename):
    l1 = l2 = True
    # opening up files defaults to 'universal newlines' this ignores OS-specific newline differences
    with open(out_filename, 'r') as f1, open(gold_out_filename, 'r') as f2:
        while l1 and l2:
            l1 = f1.readline()
            l2 = f2.readline()
            if l1 != l2:
                # generate the full-diff
                diff = unified_diff(open(out_filename, 'r').readlines(), open(gold_out_filename, 'r').readlines())
                delta = ''.join(diff)
                print (delta)
                return False
    return True