mirror of
https://github.com/python/cpython.git
synced 2025-07-19 09:15:34 +00:00
deeaac49e2
- Add requires_fork and requires_subprocess to more tests - Skip extension import tests if dlopen is not available - Don't assume that _testcapi is a shared extension - Skip a lot of socket tests that don't work on Emscripten - Skip mmap tests, mmap emulation is incomplete - venv does not work yet - Cannot get libc from executable The "entire" test suite is now passing on Emscripten with EMSDK from git head (91 suites are skipped).
56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
"""This test checks for correct wait3() behavior.
|
|
"""
|
|
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
import time
|
|
import unittest
|
|
from test.fork_wait import ForkWait
|
|
from test import support
|
|
|
|
if not support.has_fork_support:
|
|
raise unittest.SkipTest("requires working os.fork()")
|
|
|
|
if not hasattr(os, 'wait3'):
|
|
raise unittest.SkipTest("os.wait3 not defined")
|
|
|
|
class Wait3Test(ForkWait):
|
|
def wait_impl(self, cpid, *, exitcode):
|
|
# This many iterations can be required, since some previously run
|
|
# tests (e.g. test_ctypes) could have spawned a lot of children
|
|
# very quickly.
|
|
deadline = time.monotonic() + support.SHORT_TIMEOUT
|
|
while time.monotonic() <= deadline:
|
|
# wait3() shouldn't hang, but some of the buildbots seem to hang
|
|
# in the forking tests. This is an attempt to fix the problem.
|
|
spid, status, rusage = os.wait3(os.WNOHANG)
|
|
if spid == cpid:
|
|
break
|
|
time.sleep(0.1)
|
|
|
|
self.assertEqual(spid, cpid)
|
|
self.assertEqual(os.waitstatus_to_exitcode(status), exitcode)
|
|
self.assertTrue(rusage)
|
|
|
|
def test_wait3_rusage_initialized(self):
|
|
# Ensure a successful wait3() call where no child was ready to report
|
|
# its exit status does not return uninitialized memory in the rusage
|
|
# structure. See bpo-36279.
|
|
args = [sys.executable, '-c', 'import sys; sys.stdin.read()']
|
|
proc = subprocess.Popen(args, stdin=subprocess.PIPE)
|
|
try:
|
|
pid, status, rusage = os.wait3(os.WNOHANG)
|
|
self.assertEqual(0, pid)
|
|
self.assertEqual(0, status)
|
|
self.assertEqual(0, sum(rusage))
|
|
finally:
|
|
proc.stdin.close()
|
|
proc.wait()
|
|
|
|
|
|
def tearDownModule():
|
|
support.reap_children()
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|