def test_keyboard_interrupt(self):
bus = ProcessBus()
Handler.bus = bus
service = WebService(address=('127.0.0.1', 38002),
handler_class=Handler)
adapter = servers.ServerPlugin(bus, service, service.address)
adapter.subscribe()
# Raise a keyboard interrupt in the HTTP server's main thread.
bus.transition('RUN')
resp = service.do_GET('/ctrlc')
assertEqual(resp.status, 200)
bus.block()
assertEqual(bus.state, 'EXITED')
def test_block(self):
b = ProcessBus()
self.log(b)
def f():
time.sleep(0.2)
b.transition('EXITED')
def g():
time.sleep(0.4)
def main_listener():
main_calls.append(1)
main_calls = []
b.subscribe("main", main_listener)
f_thread = threading.Thread(target=f, name='f')
f_thread.start()
threading.Thread(target=g, name='g').start()
threads = [t for t in threading.enumerate() if not t.daemon]
self.assertEqual(len(threads), 3)
b.block()
f_thread.join()
# The block method MUST wait for the EXITED state.
self.assertEqual(b.state, 'EXITED')
# The block method MUST wait for ALL non-main, non-daemon threads to
# finish.
threads = [t for t in threading.enumerate() if not t.daemon]
self.assertEqual(len(threads), 1)
# The last message will mention an indeterminable thread name; ignore
# it
self.assertEqual(
[entry for entry in self._log_entries
if not entry.startswith('Publishing')
and not entry.startswith('Waiting')],
[
'Bus state: ENTER',
'Bus state: IDLE',
'Bus state: EXIT',
'Bus state: EXITED'
]
)
# While the bus was blocked, it should have published periodically
# to the "main" channel.
self.assertGreater(len(main_calls), 0)