Line | |
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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() |
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