mirror of
https://github.com/python/cpython.git
synced 2024-12-11 18:53:56 +08:00
33 lines
903 B
Python
33 lines
903 B
Python
"""This test checks for correct fork() behavior.
|
|
"""
|
|
|
|
import os
|
|
import time
|
|
from test.fork_wait import ForkWait
|
|
from test.test_support import TestSkipped, run_unittest, reap_children
|
|
|
|
try:
|
|
os.fork
|
|
except AttributeError:
|
|
raise TestSkipped("os.fork not defined -- skipping test_fork1")
|
|
|
|
class ForkTest(ForkWait):
|
|
def wait_impl(self, cpid):
|
|
for i in range(10):
|
|
# waitpid() shouldn't hang, but some of the buildbots seem to hang
|
|
# in the forking tests. This is an attempt to fix the problem.
|
|
spid, status = os.waitpid(cpid, os.WNOHANG)
|
|
if spid == cpid:
|
|
break
|
|
time.sleep(1.0)
|
|
|
|
self.assertEqual(spid, cpid)
|
|
self.assertEqual(status, 0, "cause = %d, exit = %d" % (status&0xff, status>>8))
|
|
|
|
def test_main():
|
|
run_unittest(ForkTest)
|
|
reap_children()
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|