def test_batched_cancel_too_late(framework_aio):
'''
nothing bad happens if we cancel() after the callbacks
'''
# Trollius doesn't come with this, so won't work on py2
pytest.importorskip('asyncio.test_utils')
from asyncio.test_utils import TestLoop
def time_gen():
yield
yield
new_loop = TestLoop(time_gen)
calls = []
def foo(*args, **kw):
calls.append((args, kw))
with replace_loop(new_loop):
batched = txaio.make_batched_timer(1)
call = batched.call_later(2, foo, "a call")
new_loop.advance_time(2.1)
new_loop._run_once()
assert len(calls) == 1
call.cancel()
assert len(calls) == 1
new_loop.advance_time(1)
new_loop._run_once()
assert len(calls) == 1
def test_batched_successful_call_explicit_loop(framework_aio):
'''
batched calls really happen in batches
'''
# Trollius doesn't come with this, so won't work on py2
pytest.importorskip('asyncio.test_utils')
from asyncio.test_utils import TestLoop
def time_gen():
yield
yield
new_loop = TestLoop(time_gen)
calls = []
def foo(*args, **kw):
calls.append((args, kw))
txa = txaio.with_config(loop=new_loop)
batched = txa.make_batched_timer(5)
batched.call_later(1, foo, "first call")
new_loop.advance_time(2.0)
new_loop._run_once()
assert len(calls) == 1
def test_batched_cancel(framework_aio):
'''
we can cancel uncalled call_laters
'''
# Trollius doesn't come with this, so won't work on py2
pytest.importorskip('asyncio.test_utils')
from asyncio.test_utils import TestLoop
def time_gen():
yield
yield
new_loop = TestLoop(time_gen)
calls = []
def foo(*args, **kw):
calls.append((args, kw))
with replace_loop(new_loop):
batched = txaio.make_batched_timer(1)
call = batched.call_later(2, foo, "a call")
# advance clock a bit; shouldn't have fired anything yet
new_loop.advance_time(1.2)
new_loop._run_once()
call.cancel()
# advancing clock past where we "should" get the call, if it
# were still active.
new_loop.advance_time(4.0)
new_loop._run_once()
assert len(calls) == 0
def test_call_later_aio(framework_aio):
'''
Wait for two Futures.
'''
# Trollius doesn't come with this, so won't work on py2
pytest.importorskip('asyncio.test_utils')
def time_gen():
when = yield
assert when == 1
# even though we only do one call, I guess TestLoop needs
# a "trailing" yield? "or something"
when = yield 0
from asyncio.test_utils import TestLoop
new_loop = TestLoop(time_gen)
calls = []
with replace_loop(new_loop) as fake_loop:
def foo(*args, **kw):
calls.append((args, kw))
delay = txaio.call_later(1, foo, 5, 6, 7, foo="bar")
assert len(calls) == 0
assert hasattr(delay, 'cancel')
fake_loop.advance_time(2)
fake_loop._run_once()
assert len(calls) == 1
assert calls[0][0] == (5, 6, 7)
assert calls[0][1] == dict(foo="bar")
def event_loop():
def gen():
"""The ``gen`` argument to :class: TestLoop's constructor.
Note: the class isn't documented. From code reading, it appears that
the ``when`` values are sent to the generator, which yields advance
increments, stopping the generation when ``when == 0``.
"""
advance = 0
while True:
when = yield advance
if not when: break
advance = when - loop.time()
loop = TestLoop(gen)
yield loop
loop.close()
def test_batched_successful_call(framework_aio):
'''
batched calls really happen in batches
'''
# Trollius doesn't come with this, so won't work on py2
pytest.importorskip('asyncio.test_utils')
from asyncio.test_utils import TestLoop
# XXX I *really* don't get the point of these generators...
def time_gen():
yield
yield
yield
new_loop = TestLoop(time_gen)
calls = []
with replace_loop(new_loop):
def foo(*args, **kw):
calls.append((args, kw))
batched = txaio.make_batched_timer(5)
# add 3 calls: first 2 should be in the same bucket, 3rd in
# another bucket
batched.call_later(5.1, foo, "first call")
batched.call_later(9.9, foo, "second call")
batched.call_later(10.1, foo, "third call")
# advancing 4.9 seconds: shouldn't have expired from a bucket
new_loop.advance_time(4.9)
new_loop._run_once()
assert len(calls) == 0
# tick over past first bucket; first two calls should happen
# (the "5s -> 10s" bucket)
new_loop.advance_time(0.2)
new_loop._run_once()
assert len(calls) == 2
assert calls[0] == (("first call", ), dict())
assert calls[1] == (("second call", ), dict())
# tick into next bucket
new_loop.advance_time(5)
new_loop._run_once()
assert len(calls) == 3
assert calls[2] == (("third call", ), dict())
def setUp(self):
self.loop = TestLoop()