Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_wait3.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents 228cfb6e2900
children
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1 """This test checks for correct wait3() behavior.
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2 """
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3
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4 import os
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5 import time
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6 import unittest
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7 from test.fork_wait import ForkWait
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8 from test.test_support import run_unittest, reap_children
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9
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10 try:
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11 os.fork
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12 except AttributeError:
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13 raise unittest.SkipTest, "os.fork not defined -- skipping test_wait3"
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14
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15 try:
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16 os.wait3
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17 except AttributeError:
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18 raise unittest.SkipTest, "os.wait3 not defined -- skipping test_wait3"
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19
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20 class Wait3Test(ForkWait):
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21 def wait_impl(self, cpid):
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22 for i in range(10):
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23 # wait3() shouldn't hang, but some of the buildbots seem to hang
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24 # in the forking tests. This is an attempt to fix the problem.
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25 spid, status, rusage = os.wait3(os.WNOHANG)
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26 if spid == cpid:
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27 break
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28 time.sleep(1.0)
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29
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30 self.assertEqual(spid, cpid)
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31 self.assertEqual(status, 0, "cause = %d, exit = %d" % (status&0xff, status>>8))
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32 self.assertTrue(rusage)
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33
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34 def test_main():
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35 run_unittest(Wait3Test)
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36 reap_children()
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37
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38 if __name__ == "__main__":
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39 test_main()