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# -*- Mode: Python -*-
from __future__ import absolute_import
import os
import select
import signal
import unittest
from gi.repository import GLib
from .helper import capture_exceptions
class TestMainLoop(unittest.TestCase):
@unittest.skipUnless(hasattr(os, "fork"), "no os.fork available")
def test_exception_handling(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(GLib.PRIORITY_DEFAULT, pid, child_died, loop)
os.close(pipe_r)
os.write(pipe_w, b"Y")
os.close(pipe_w)
with capture_exceptions() as exc:
loop.run()
assert len(exc) == 1
assert exc[0].type is Exception
assert exc[0].value.args[0] == "deadbabe"
@unittest.skipUnless(hasattr(os, "fork"), "no os.fork available")
@unittest.skipIf(os.environ.get("PYGI_TEST_GDB"), "SIGINT stops gdb")
def test_sigint(self):
r, w = os.pipe()
pid = os.fork()
if pid == 0:
# wait for the parent process loop to start
os.read(r, 1)
os.close(r)
os.kill(os.getppid(), signal.SIGINT)
os._exit(0)
def notify_child():
# tell the child that it can kill the parent
os.write(w, b"X")
os.close(w)
GLib.idle_add(notify_child)
loop = GLib.MainLoop()
try:
loop.run()
self.fail('expected KeyboardInterrupt exception')
except KeyboardInterrupt:
pass
self.assertFalse(loop.is_running())
os.waitpid(pid, 0)
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