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42 lines
1.8 KiB
Python

import sys
if 'runtestcase' in sys.argv[1:]: # pragma: no cover
import gevent
import gevent.subprocess
gevent.spawn(sys.exit, 'bye')
# Look closely, this doesn't actually do anything, that's a string
# not a division
gevent.subprocess.Popen([sys.executable, '-c', '"1/0"'])
gevent.sleep(1)
else:
# XXX: Handle this more automatically. See comments in the testrunner.
from gevent.testing.resources import exit_without_resource
exit_without_resource('subprocess')
import subprocess
for _ in range(5):
out, err = subprocess.Popen([sys.executable, '-W', 'ignore',
__file__, 'runtestcase'],
stderr=subprocess.PIPE).communicate()
# We've seen a few unexpected forms of output.
#
# The first involves 'refs'; I don't remember what that was
# about, but I think it had to do with debug builds of Python.
#
# The second is the classic "Unhandled exception in thread
# started by \nsys.excepthook is missing\nlost sys.stderr".
# This is a race condition between closing sys.stderr and
# writing buffered data to a pipe that hasn't been read. We
# only see this using GEVENT_FILE=thread (which makes sense);
# likewise, on Python 2 with thread, we can sometimes get
# `super() argument 1 must be type, not None`; this happens on module
# cleanup.
#
# The third is similar to the second: "AssertionError:
# ...\nIOError: close() called during concurrent operation on
# the same file object.\n"
if b'refs' in err or b'sys.excepthook' in err or b'concurrent' in err:
assert err.startswith(b'bye'), repr(err) # pragma: no cover
else:
assert err.strip() == b'bye', repr(err)