tractor/tests/test_runtime.py

111 lines
2.5 KiB
Python

"""
Verifying internal runtime state and undocumented extras.
"""
import os
import pytest
import trio
import tractor
from tractor._testing import tractor_test
_file_path: str = ''
def unlink_file():
print('Removing tmp file!')
os.remove(_file_path)
async def crash_and_clean_tmpdir(
tmp_file_path: str,
error: bool = True,
rent_cancel: bool = True,
# XXX unused, but do we really need to test these cases?
self_cancel: bool = False,
):
global _file_path
_file_path = tmp_file_path
actor = tractor.current_actor()
actor.lifetime_stack.callback(unlink_file)
assert os.path.isfile(tmp_file_path)
await trio.sleep(0.1)
if error:
print('erroring in subactor!')
assert 0
elif self_cancel:
print('SELF-cancelling subactor!')
actor.cancel_soon()
elif rent_cancel:
await trio.sleep_forever()
print('subactor exiting task!')
@pytest.mark.parametrize(
'error_in_child',
[True, False],
ids='error_in_child={}'.format,
)
@tractor_test
async def test_lifetime_stack_wipes_tmpfile(
tmp_path,
error_in_child: bool,
loglevel: str,
# log: tractor.log.StackLevelAdapter,
# ^TODO, once landed via macos support!
):
child_tmp_file = tmp_path / "child.txt"
child_tmp_file.touch()
assert child_tmp_file.exists()
path = str(child_tmp_file)
# NOTE, this is expected to cancel the sub
# in the `error_in_child=False` case!
timeout: float = (
1.6 if error_in_child
else 1
)
try:
with trio.move_on_after(timeout) as cs:
async with tractor.open_nursery(
loglevel=loglevel,
) as an:
await ( # inlined `tractor.Portal`
await an.run_in_actor(
crash_and_clean_tmpdir,
tmp_file_path=path,
error=error_in_child,
)
).result()
except (
tractor.RemoteActorError,
BaseExceptionGroup,
) as _exc:
exc = _exc
from tractor.log import get_console_log
log = get_console_log(
level=loglevel,
name=__name__,
)
log.exception(
f'Subactor failed as expected with {type(exc)!r}\n'
)
# tmp file should have been wiped by
# teardown stack.
assert not child_tmp_file.exists()
if error_in_child:
assert not cs.cancel_called
else:
# expect timeout in some cases?
assert cs.cancel_called