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import platform
import sys
from unittest import skipIf, TestCase
from pytest import mark
from scrapy.utils.reactor import is_asyncio_reactor_installed, install_reactor
@mark.usefixtures('reactor_pytest')
class AsyncioTest(TestCase):
def test_is_asyncio_reactor_installed(self):
# the result should depend only on the pytest --reactor argument
self.assertEqual(is_asyncio_reactor_installed(), self.reactor_pytest == 'asyncio')
# https://twistedmatrix.com/trac/ticket/9766
@skipIf(platform.system() == 'Windows' and sys.version_info >= (3, 8),
"the asyncio reactor is broken on Windows when running Python ≥ 3.8")
def test_install_asyncio_reactor(self):
# this should do nothing
install_reactor("twisted.internet.asyncioreactor.AsyncioSelectorReactor")
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