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0d63bacefd
Replace hardcoded timeout constants in tests with SHORT_TIMEOUT of test.support, so it's easier to ajdust this timeout for all tests at once. SHORT_TIMEOUT is 30 seconds by default, but it can be longer depending on --timeout command line option. The change makes almost all timeouts longer, except test_reap_children() of test_support which is made 2x shorter: SHORT_TIMEOUT should be enough. If this test starts to fail, LONG_TIMEOUT should be used instead. Uniformize also "from test import support" import in some test files.
39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
"""This test checks for correct wait4() behavior.
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"""
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import os
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import time
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import sys
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import unittest
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from test.fork_wait import ForkWait
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from test import support
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# If either of these do not exist, skip this test.
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support.get_attribute(os, 'fork')
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support.get_attribute(os, 'wait4')
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class Wait4Test(ForkWait):
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def wait_impl(self, cpid):
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option = os.WNOHANG
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if sys.platform.startswith('aix'):
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# Issue #11185: wait4 is broken on AIX and will always return 0
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# with WNOHANG.
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option = 0
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deadline = time.monotonic() + support.SHORT_TIMEOUT
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while time.monotonic() <= deadline:
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# wait4() shouldn't hang, but some of the buildbots seem to hang
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# in the forking tests. This is an attempt to fix the problem.
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spid, status, rusage = os.wait4(cpid, option)
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if spid == cpid:
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break
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time.sleep(0.1)
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self.assertEqual(spid, cpid)
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self.assertEqual(status, 0, "cause = %d, exit = %d" % (status&0xff, status>>8))
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self.assertTrue(rusage)
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def tearDownModule():
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support.reap_children()
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if __name__ == "__main__":
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unittest.main()
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