Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_fork1.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents f4c5e3a64be2
children b0d03fa073ec
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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79ea19085fb6 Test case for fork1() behavior.
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1 """This test checks for correct fork() behavior.
79ea19085fb6 Test case for fork1() behavior.
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2 """
79ea19085fb6 Test case for fork1() behavior.
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3
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d62b13488943 Patch #1309579: wait3 and wait4 were added to the posix module by Chad J. Schroeder.
Neal Norwitz <nnorwitz@gmail.com>
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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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9 #Skip test if fork does not exist.
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10 get_attribute(os, 'fork')
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11
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077456c324bc Raise ImportError when os.fork does not exist.
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12
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Neal Norwitz <nnorwitz@gmail.com>
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13 class ForkTest(ForkWait):
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14 def wait_impl(self, cpid):
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15 for i in range(10):
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16 # waitpid() shouldn't hang, but some of the buildbots seem to hang
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17 # in the forking tests. This is an attempt to fix the problem.
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18 spid, status = os.waitpid(cpid, os.WNOHANG)
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19 if spid == cpid:
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20 break
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21 time.sleep(1.0)
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22
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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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26 def test_main():
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27 run_unittest(ForkTest)
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28 reap_children()
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30 if __name__ == "__main__":
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31 test_main()