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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Tests for L{twisted.internet.asyncioreactor}.
"""
from twisted.trial.unittest import SynchronousTestCase
from .reactormixins import ReactorBuilder
try:
from twisted.internet.asyncioreactor import AsyncioSelectorReactor
import asyncio
except ImportError:
AsyncioSelectorReactor = None
skipReason = "Requires asyncio."
class AsyncioSelectorReactorTests(ReactorBuilder, SynchronousTestCase):
"""
L{AsyncioSelectorReactor} tests.
"""
if AsyncioSelectorReactor is None:
skip = skipReason
def test_defaultEventLoopFromGlobalPolicy(self):
"""
L{AsyncioSelectorReactor} wraps the global policy's event loop
by default. This ensures that L{asyncio.Future}s and
coroutines created by library code that uses
L{asyncio.get_event_loop} are bound to the same loop.
"""
reactor = AsyncioSelectorReactor()
future = asyncio.Future()
result = []
def completed(future):
result.append(future.result())
reactor.stop()
future.add_done_callback(completed)
future.set_result(True)
self.assertEqual(result, [])
self.runReactor(reactor, timeout=1)
self.assertEqual(result, [True])
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