#!/usr/bin/env python3

import subprocess
import sys

total_runs = 200
num_fails = 0

for _ in range(total_runs):
  devnull = subprocess.DEVNULL
  done = subprocess.run(['../llvm/utils/lit/lit.py',
    '../build/Ninja-RelWithDebInfoAssert/swift-macosx-x86_64/test-macosx-x86_64/Driver',
    '--filter=(linker|embed-bitcode)'], stdout=devnull, stderr=devnull)
  if done.returncode != 0:
    num_fails += 1
    sys.stdout.write('-')
  else:
    sys.stdout.write('+')
  sys.stdout.flush()

print("\nEncountered {} failures out of {} total runs".format(
    num_fails, total_runs))