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annotate Lib/test/test_wait4.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 57044a3652d8
children e3fd5fc5dc47
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d62b13488943 Patch #1309579: wait3 and wait4 were added to the posix module by Chad J. Schroeder.
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1 """This test checks for correct wait4() 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 from test.fork_wait import ForkWait
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7 from test.test_support import run_unittest, reap_children, get_attribute
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8
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9 # If either of these do not exist, skip this test.
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10 get_attribute(os, 'fork')
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11 get_attribute(os, 'wait4')
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12
d62b13488943 Patch #1309579: wait3 and wait4 were added to the posix module by Chad J. Schroeder.
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13
d62b13488943 Patch #1309579: wait3 and wait4 were added to the posix module by Chad J. Schroeder.
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14 class Wait4Test(ForkWait):
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15 def wait_impl(self, cpid):
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16 for i in range(10):
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17 # wait4() shouldn't hang, but some of the buildbots seem to hang
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18 # in the forking tests. This is an attempt to fix the problem.
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19 spid, status, rusage = os.wait4(cpid, os.WNOHANG)
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20 if spid == cpid:
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21 break
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22 time.sleep(1.0)
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23 self.assertEqual(spid, cpid)
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24 self.assertEqual(status, 0, "cause = %d, exit = %d" % (status&0xff, status>>8))
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25 self.assertTrue(rusage)
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27 def test_main():
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28 run_unittest(Wait4Test)
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29 reap_children()
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31 if __name__ == "__main__":
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32 test_main()