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# -*- Mode: Python -*-
import os
import sys
import select
import unittest
from gi.repository import GLib
from compathelper import _bytes
class TestMainLoop(unittest.TestCase):
def testExceptionHandling(self):
pipe_r, pipe_w = os.pipe()
pid = os.fork()
if pid == 0:
os.close(pipe_w)
select.select([pipe_r], [], [])
os.close(pipe_r)
os._exit(1)
def child_died(pid, status, loop):
loop.quit()
raise Exception("deadbabe")
loop = GLib.MainLoop()
GLib.child_watch_add(pid, child_died, loop)
os.close(pipe_r)
os.write(pipe_w, _bytes("Y"))
os.close(pipe_w)
def excepthook(type, value, traceback):
assert type is Exception
assert value.args[0] == "deadbabe"
sys.excepthook = excepthook
got_exception = False
try:
loop.run()
except:
got_exception = True
#
# The exception should be handled (by printing it)
# immediately on return from child_died() rather
# than here. See bug #303573
#
sys.excepthook = sys.__excepthook__
assert not got_exception
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