lib-python.2.5.test.test_wait3.py Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jython Show documentation

Jython is an implementation of the high-level, dynamic, object-oriented language Python written in 100% Pure Java, and seamlessly integrated with the Java platform. It thus allows you to run Python on any Java platform.

There is a newer version: 2.7.4

Show newest version

"""This test checks for correct wait3() 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_wait3"

try:
    os.wait3
except AttributeError:
    raise TestSkipped, "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()