88 lines
2.1 KiB
Python
88 lines
2.1 KiB
Python
'''
|
|
``async with ():`` inlined context-stream cancellation testing.
|
|
|
|
Verify the we raise errors when streams are opened prior to sync-opening
|
|
a ``tractor.Context`` beforehand.
|
|
|
|
'''
|
|
import pytest
|
|
import trio
|
|
from trio.lowlevel import current_task
|
|
import tractor
|
|
|
|
|
|
@tractor.context
|
|
async def really_started(
|
|
ctx: tractor.Context,
|
|
) -> None:
|
|
await ctx.started()
|
|
try:
|
|
await ctx.started()
|
|
except RuntimeError as err:
|
|
raise
|
|
|
|
|
|
def test_started_called_more_then_once():
|
|
|
|
async def main():
|
|
async with tractor.open_nursery() as n:
|
|
portal = await n.start_actor(
|
|
'too_much_starteds',
|
|
enable_modules=[__name__],
|
|
)
|
|
|
|
async with portal.open_context(really_started) as (ctx, sent):
|
|
pass
|
|
|
|
with pytest.raises(tractor.RemoteActorError) as excinfo:
|
|
trio.run(main)
|
|
|
|
|
|
@tractor.context
|
|
async def never_open_stream(
|
|
|
|
ctx: tractor.Context,
|
|
|
|
) -> None:
|
|
'''Bidir streaming endpoint which will stream
|
|
back any sequence it is sent item-wise.
|
|
|
|
'''
|
|
await ctx.started()
|
|
await trio.sleep_forever()
|
|
|
|
|
|
def test_no_far_end_stream_opened():
|
|
'''
|
|
This should exemplify the bug from:
|
|
https://github.com/goodboy/tractor/issues/265
|
|
|
|
'''
|
|
async def main():
|
|
async with tractor.open_nursery() as n:
|
|
portal = await n.start_actor(
|
|
'starts_no_stream',
|
|
enable_modules=[__name__],
|
|
)
|
|
|
|
async with (
|
|
portal.open_context(
|
|
never_open_stream,) as (ctx, sent),
|
|
ctx.open_stream() as stream,
|
|
):
|
|
assert sent is None
|
|
|
|
# XXX: so the question is whether
|
|
# this should error if the far end
|
|
# has not yet called `ctx.open_stream()`?
|
|
# If we decide to do that we need a synchronization
|
|
# message which is sent from that call?
|
|
await stream.send('yo')
|
|
|
|
# without this we block waiting on the child side
|
|
await ctx.cancel()
|
|
|
|
await portal.cancel_actor()
|
|
|
|
trio.run(main)
|