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"""
Test interoperability between asyncio and trollius. Trollius event loop should
support asyncio coroutines.
"""
import asyncio
import greenio
import trollius
import unittest
from trollius import From, Return
from trollius.test_utils import TestCase
class TrolliusEventLoopTests(TestCase):
def setUp(self):
policy = greenio.GreenTrolliusEventLoopPolicy()
asyncio.set_event_loop_policy(policy)
trollius.set_event_loop_policy(policy)
self.loop = trollius.new_event_loop()
policy.set_event_loop(self.loop)
def tearDown(self):
self.loop.close()
asyncio.set_event_loop_policy(None)
def test_trollius_coroutine(self):
@trollius.coroutine
def bar():
yield From(None)
raise Return(30)
@trollius.coroutine
def foo():
bar_result = greenio.yield_from(bar())
return bar_result + 12
@greenio.task
def test():
res = yield From(foo())
raise Return(res)
fut = test()
self.loop.run_until_complete(fut)
self.assertEqual(fut.result(), 42)
def test_asyncio_coroutine(self):
@asyncio.coroutine
def bar():
yield from []
return 30
@asyncio.coroutine
def foo():
bar_result = greenio.yield_from(bar())
return bar_result + 12
@greenio.task
def test():
res = yield From(foo())
raise Return(res)
fut = test()
self.loop.run_until_complete(fut)
self.assertEqual(fut.result(), 42)
if __name__ == '__main__':
unittest.main()
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