[New-bugs-announce] [issue34130] test_signal: test_warn_on_full_buffer() failed on AppVeyor
STINNER Victor
report at bugs.python.org
Mon Jul 16 18:19:02 EDT 2018
New submission from STINNER Victor <vstinner at redhat.com>:
test_signal.test_warn_on_full_buffer() failed on AppVeyor.
https://ci.appveyor.com/project/python/cpython/build/3.8build19372
======================================================================
FAIL: test_warn_on_full_buffer (test.test_signal.WakeupSocketSignalTests)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\projects\cpython\lib\test\test_signal.py", line 538, in test_warn_on_full_buffer
assert_python_ok('-c', code)
File "C:\projects\cpython\lib\test\support\script_helper.py", line 157, in assert_python_ok
return _assert_python(True, *args, **env_vars)
File "C:\projects\cpython\lib\test\support\script_helper.py", line 143, in _assert_python
res.fail(cmd_line)
File "C:\projects\cpython\lib\test\support\script_helper.py", line 84, in fail
err))
AssertionError: Process return code is 1
command line: ['C:\\projects\\cpython\\PCbuild\\win32\\python.exe', '-X', 'faulthandler', '-I', '-c', 'if 1:\n import errno\n import signal\n import socket\n import sys\n import time\n import _testcapi\n from test.support import captured_stderr\n\n signum = signal.SIGINT\n\n # This handler will be called, but we intentionally won\'t read from\n # the wakeup fd.\n def handler(signum, frame):\n pass\n\n signal.signal(signum, handler)\n\n read, write = socket.socketpair()\n read.setblocking(False)\n write.setblocking(False)\n\n # Fill the send buffer\n try:\n while True:\n write.send(b"x")\n except BlockingIOError:\n pass\n\n # By default, we get a warning when a signal arrives\n signal.set_wakeup_fd(write.fileno())\n\n with captured_stderr() as err:\n _testcapi.raise_signal(signum)\n\n err = err.getvalue()\n if (\'Exception ignored when trying to send to the signal wakeup fd\'\n not in err):\n raise AssertionError(err)\n\n # And also if warn_on_full_buffer=True\n signal.set_wakeup_fd(write.fileno(), warn_on_full_buffer=True)\n\n with captured_stderr() as err:\n _testcapi.raise_signal(signum)\n\n err = err.getvalue()\n if (\'Exception ignored when trying to send to the signal wakeup fd\'\n not in err):\n raise AssertionError(err)\n\n # But not if warn_on_full_buffer=False\n signal.set_wakeup_fd(write.fileno(), warn_on_full_buffer=False)\n\n with captured_stderr() as err:\n _testcapi.raise_signal(signum)\n\n err = err.getvalue()\n if err != "":\n raise AssertionError("got unexpected output %r" % (err,))\n\n # And then check the default again, to make sure warn_on_full_buffer\n # settings don\'t leak across calls.\n signal.set_wakeup_fd(write.fileno())\n\n with captured_stderr() as err:\n _testcapi.raise_signal(signum)\n\n err = err.getvalue()\n if (\'Exception ignored when trying to send to the signal wakeup fd\'\n not in err):\n raise AssertionError(err)\n\n ']
stdout:
---
---
stderr:
---
Traceback (most recent call last):
File "<string>", line 39, in <module>
AssertionError
---
----------------------------------------------------------------------
The test passed when run again sequentially ("Re-running test 'test_signal' in verbose mode").
----------
components: Tests
messages: 321775
nosy: njs, pitrou, vstinner
priority: normal
severity: normal
status: open
title: test_signal: test_warn_on_full_buffer() failed on AppVeyor
versions: Python 3.8
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34130>
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