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test_signals.py
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import asyncio
import signal
import subprocess
import sys
import time
from uvloop import _testbase as tb
DELAY = 0.1
@tb.skip_windows
class _TestSignal:
NEW_LOOP = None
@tb.silence_long_exec_warning()
def test_signals_sigint_pycode_stop(self):
async def runner():
PROG = R"""\
import asyncio
import uvloop
import time
from uvloop import _testbase as tb
async def worker():
print('READY', flush=True)
time.sleep(200)
@tb.silence_long_exec_warning()
def run():
loop = """ + self.NEW_LOOP + """
asyncio.set_event_loop(loop)
try:
loop.run_until_complete(worker())
finally:
loop.close()
run()
"""
proc = await asyncio.create_subprocess_exec(
sys.executable, b'-c', PROG,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
loop=self.loop)
await proc.stdout.readline()
time.sleep(DELAY)
proc.send_signal(signal.SIGINT)
out, err = await proc.communicate()
self.assertIn(b'KeyboardInterrupt', err)
self.assertEqual(out, b'')
self.loop.run_until_complete(runner())
@tb.silence_long_exec_warning()
def test_signals_sigint_pycode_continue(self):
async def runner():
PROG = R"""\
import asyncio
import uvloop
import time
from uvloop import _testbase as tb
async def worker():
print('READY', flush=True)
try:
time.sleep(200)
except KeyboardInterrupt:
print("oups")
await asyncio.sleep(0.5)
print('done')
@tb.silence_long_exec_warning()
def run():
loop = """ + self.NEW_LOOP + """
asyncio.set_event_loop(loop)
try:
loop.run_until_complete(worker())
finally:
loop.close()
run()
"""
proc = await asyncio.create_subprocess_exec(
sys.executable, b'-c', PROG,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
loop=self.loop)
await proc.stdout.readline()
time.sleep(DELAY)
proc.send_signal(signal.SIGINT)
out, err = await proc.communicate()
self.assertEqual(err, b'')
self.assertEqual(out, b'oups\ndone\n')
self.loop.run_until_complete(runner())
@tb.silence_long_exec_warning()
def test_signals_sigint_uvcode(self):
async def runner():
PROG = R"""\
import asyncio
import uvloop
srv = None
async def worker():
global srv
cb = lambda *args: None
srv = await asyncio.start_server(cb, '127.0.0.1', 0)
print('READY', flush=True)
loop = """ + self.NEW_LOOP + """
asyncio.set_event_loop(loop)
loop.create_task(worker())
try:
loop.run_forever()
finally:
srv.close()
loop.run_until_complete(srv.wait_closed())
loop.close()
"""
proc = await asyncio.create_subprocess_exec(
sys.executable, b'-c', PROG,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
loop=self.loop)
await proc.stdout.readline()
time.sleep(DELAY)
proc.send_signal(signal.SIGINT)
out, err = await proc.communicate()
self.assertIn(b'KeyboardInterrupt', err)
self.loop.run_until_complete(runner())
@tb.silence_long_exec_warning()
def test_signals_sigint_and_custom_handler(self):
async def runner():
PROG = R"""\
import asyncio
import signal
import uvloop
srv = None
async def worker():
global srv
cb = lambda *args: None
srv = await asyncio.start_server(cb, '127.0.0.1', 0)
print('READY', flush=True)
def handler_sig(say):
print(say, flush=True)
exit()
def handler_hup(say):
print(say, flush=True)
loop = """ + self.NEW_LOOP + """
loop.add_signal_handler(signal.SIGINT, handler_sig, '!s-int!')
loop.add_signal_handler(signal.SIGHUP, handler_hup, '!s-hup!')
asyncio.set_event_loop(loop)
loop.create_task(worker())
try:
loop.run_forever()
finally:
srv.close()
loop.run_until_complete(srv.wait_closed())
loop.close()
"""
proc = await asyncio.create_subprocess_exec(
sys.executable, b'-c', PROG,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
loop=self.loop)
await proc.stdout.readline()
time.sleep(DELAY)
proc.send_signal(signal.SIGHUP)
time.sleep(DELAY)
proc.send_signal(signal.SIGINT)
out, err = await proc.communicate()
self.assertEqual(err, b'')
self.assertIn(b'!s-hup!', out)
self.assertIn(b'!s-int!', out)
self.loop.run_until_complete(runner())
@tb.silence_long_exec_warning()
def test_signals_and_custom_handler_1(self):
async def runner():
PROG = R"""\
import asyncio
import signal
import uvloop
srv = None
async def worker():
global srv
cb = lambda *args: None
srv = await asyncio.start_server(cb, '127.0.0.1', 0)
print('READY', flush=True)
def handler1():
print("GOTIT", flush=True)
def handler2():
assert loop.remove_signal_handler(signal.SIGUSR1)
print("REMOVED", flush=True)
def handler_hup():
exit()
loop = """ + self.NEW_LOOP + """
asyncio.set_event_loop(loop)
loop.add_signal_handler(signal.SIGUSR1, handler1)
loop.add_signal_handler(signal.SIGUSR2, handler2)
loop.add_signal_handler(signal.SIGHUP, handler_hup)
loop.create_task(worker())
try:
loop.run_forever()
finally:
srv.close()
loop.run_until_complete(srv.wait_closed())
loop.close()
"""
proc = await asyncio.create_subprocess_exec(
sys.executable, b'-c', PROG,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
loop=self.loop)
await proc.stdout.readline()
time.sleep(DELAY)
proc.send_signal(signal.SIGUSR1)
time.sleep(DELAY)
proc.send_signal(signal.SIGUSR1)
time.sleep(DELAY)
proc.send_signal(signal.SIGUSR2)
time.sleep(DELAY)
proc.send_signal(signal.SIGUSR1)
time.sleep(DELAY)
proc.send_signal(signal.SIGUSR1)
time.sleep(DELAY)
proc.send_signal(signal.SIGHUP)
out, err = await proc.communicate()
self.assertEqual(err, b'')
self.assertEqual(b'GOTIT\nGOTIT\nREMOVED\n', out)
self.loop.run_until_complete(runner())
def test_signals_invalid_signal(self):
with self.assertRaisesRegex(RuntimeError,
'sig {} cannot be caught'.format(
signal.SIGKILL)):
self.loop.add_signal_handler(signal.SIGKILL, lambda *a: None)
def test_signals_coro_callback(self):
async def coro(): pass
with self.assertRaisesRegex(TypeError, 'coroutines cannot be used'):
self.loop.add_signal_handler(signal.SIGHUP, coro)
class Test_UV_Signals(_TestSignal, tb.UVTestCase):
NEW_LOOP = 'uvloop.new_event_loop()'
class Test_AIO_Signals(_TestSignal, tb.AIOTestCase):
NEW_LOOP = 'asyncio.new_event_loop()'