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Dir : /lib64/python2.7/test/
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Dir : //lib64/python2.7/test/test_wait3.py

"""This test checks for correct wait3() behavior.
"""

import os
import time
import unittest
from test.fork_wait import ForkWait
from test.test_support import run_unittest, reap_children

try:
    os.fork
except AttributeError:
    raise unittest.SkipTest, "os.fork not defined -- skipping test_wait3"

try:
    os.wait3
except AttributeError:
    raise unittest.SkipTest, "os.wait3 not defined -- skipping test_wait3"

class Wait3Test(ForkWait):
    def wait_impl(self, cpid):
        for i in range(10):
            # wait3() 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, rusage = os.wait3(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))
        self.assertTrue(rusage)

def test_main():
    run_unittest(Wait3Test)
    reap_children()

if __name__ == "__main__":
    test_main()