1# RUN: "%python" "%s" "%counter" 2 3import sys 4import os 5 6counter_file = sys.argv[1] 7 8# The first time the test is run, initialize the counter to 1. 9if not os.path.exists(counter_file): 10 with open(counter_file, "w") as counter: 11 counter.write("1") 12 13# Succeed if this is the fourth time we're being run. 14with open(counter_file, "r") as counter: 15 num = int(counter.read()) 16 if num == 4: 17 sys.exit(0) 18 19# Otherwise, increment the counter and fail 20with open(counter_file, "w") as counter: 21 counter.write(str(num + 1)) 22 sys.exit(1) 23