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ORPA-pyOpenRPA/Resources/WPy64-3720/python-3.7.2.amd64/Lib/site-packages/zmq/tests/test_win32_shim.py

64 lines
1.7 KiB

from __future__ import print_function
import os
import time
import sys
from functools import wraps
from pytest import mark
from zmq.tests import BaseZMQTestCase
from zmq.utils.win32 import allow_interrupt
def count_calls(f):
@wraps(f)
def _(*args, **kwds):
try:
return f(*args, **kwds)
finally:
_.__calls__ += 1
_.__calls__ = 0
return _
@mark.new_console
class TestWindowsConsoleControlHandler(BaseZMQTestCase):
@mark.new_console
@mark.skipif(
not sys.platform.startswith('win'),
reason='Windows only test')
def test_handler(self):
@count_calls
def interrupt_polling():
print('Caught CTRL-C!')
from ctypes import windll
from ctypes.wintypes import BOOL, DWORD
kernel32 = windll.LoadLibrary('kernel32')
# <http://msdn.microsoft.com/en-us/library/ms683155.aspx>
GenerateConsoleCtrlEvent = kernel32.GenerateConsoleCtrlEvent
GenerateConsoleCtrlEvent.argtypes = (DWORD, DWORD)
GenerateConsoleCtrlEvent.restype = BOOL
# Simulate CTRL-C event while handler is active.
try:
with allow_interrupt(interrupt_polling) as context:
result = GenerateConsoleCtrlEvent(0, 0)
# Sleep so that we give time to the handler to
# capture the Ctrl-C event.
time.sleep(0.5)
except KeyboardInterrupt:
pass
else:
if result == 0:
raise WindowsError()
else:
self.fail('Expecting `KeyboardInterrupt` exception!')
# Make sure our handler was called.
self.assertEqual(interrupt_polling.__calls__, 1)