mirror of https://github.com/MagicStack/uvloop.git
65 lines
1.9 KiB
Python
65 lines
1.9 KiB
Python
import asyncio
|
|
import subprocess
|
|
import sys
|
|
|
|
from uvloop import _testbase as tb
|
|
|
|
|
|
class TestDealloc(tb.UVTestCase):
|
|
|
|
def test_dealloc_1(self):
|
|
# Somewhere between Cython 0.25.2 and 0.26.0 uvloop programs
|
|
# started to trigger the following output:
|
|
#
|
|
# $ python prog.py
|
|
# Error in sys.excepthook:
|
|
#
|
|
# Original exception was:
|
|
#
|
|
# Upon some debugging, it appeared that Handle.__dealloc__ was
|
|
# called at a time where some CPython objects become non-functional,
|
|
# and any exception in __dealloc__ caused CPython to output the
|
|
# above.
|
|
#
|
|
# This regression test starts an event loop in debug mode,
|
|
# lets it run for a brief period of time, and exits the program.
|
|
# This will trigger Handle.__dealloc__, CallbackHandle.__dealloc__,
|
|
# and Loop.__dealloc__ methods. The test will fail if they produce
|
|
# any unwanted output.
|
|
|
|
async def test():
|
|
prog = '''\
|
|
import uvloop
|
|
import asyncio
|
|
|
|
async def foo():
|
|
return 42
|
|
|
|
def main():
|
|
asyncio.set_event_loop(uvloop.new_event_loop())
|
|
loop = asyncio.get_event_loop()
|
|
loop.set_debug(True)
|
|
loop.run_until_complete(foo())
|
|
# Do not close the loop on purpose: let __dealloc__ methods run.
|
|
|
|
if __name__ == '__main__':
|
|
main()
|
|
'''
|
|
|
|
cmd = sys.executable
|
|
proc = await asyncio.create_subprocess_exec(
|
|
cmd, b'-W', b'ignore', b'-c', prog,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
loop=self.loop)
|
|
|
|
await proc.wait()
|
|
out = await proc.stdout.read()
|
|
err = await proc.stderr.read()
|
|
|
|
return out, err
|
|
|
|
out, err = self.loop.run_until_complete(test())
|
|
self.assertEqual(out, b'', 'stdout is not empty')
|
|
self.assertEqual(err, b'', 'stderr is not empty')
|