Commit Graph

378 Commits (a5bdc6db668e3344d876574968b3818937ec114c)

Author SHA1 Message Date
Tyler Goodlet a5bdc6db66 Flip rpc tests over to use `ExceptionGroup` on new `trio` 2024-03-05 10:34:32 -05:00
Tyler Goodlet 3ed309f019 Add test for `modden` sub-spawner-server hangs on cancel
As per a lot of the recent refinements to `Context` cancellation, add
a new test case to replicate the original hang-on-cancel found with
`modden` when using a client actor to spawn a subactor in some other
tree where despite `Context.cancel()` being called the requesting client
would hang on the opened context with the server.

The specific scenario added here is to have,
- root actor spawns 2 children: a client and a spawn server.
- the spawn server opens with a spawn-request serve loop and begins to
  wait for the client.
- client spawns and connects to the sibling spawn server, requests to
  spawn a sub-actor, the "little bro", connects to it then does some
  echo streaming, cancels the request with it's sibling (the spawn
  server) which should in turn cancel the root's-grandchild and result
  in a cancel-ack back to the client's `.open_context()`.
- root ensures that it can also connect to the grandchild (little bro),
  do the same echo streaming, then ensure everything tears down
  correctly after cancelling all the children.

More refinements to come here obvi in the specific cancellation
semantics and possibly causes.

Also tweaks the other tests in suite to use the new `Context` properties
recently introduced and similarly updated in the previous patch to the
ctx-semantics suite.
2024-02-29 15:45:55 -05:00
Tyler Goodlet d08aeaeafe Make `@context`-cancelled tests more pedantic
In order to match a very significant and coming-soon patch set to the
IPC `Context` and `Channel` cancellation semantics with significant but
subtle changes to the primitives and runtime logic:

- a new set of `Context` state pub meth APIs for checking exact
  inter-actor-linked-task outcomes such as `.outcome`, `.maybe_error`,
  and `.cancel_acked`.

- trying to move away from `Context.cancelled_caught` usage since the
  semantics from `trio` don't really map well (in terms of cancel
  requests and how they result in cancel-scope graceful closure) and
  `.cancel_acked: bool` is a better approach for IPC req-resp msging.
  - change test usage to access `._scope.cancelled_caught` directly.

- more pedantic ctxc-raising expects around the "type of self
  cancellation" and final outcome in ctxc cases:
  - `ContextCancelled` is raised by ctx (`Context.result()`) consumer
    methods when `Portal.cancel_actor()` is called (since it's an
    out-of-band request) despite `Channel._cancel_called` being set.
  - also raised by `.open_context().__aexit__()` on close.
  - `.outcome` is always `.maybe_error` is always one of
    `._local/remote_error`.
2024-02-28 19:25:27 -05:00
Tyler Goodlet 930d498841 Call `actor.cancel(None)` from root to avoid mismatch with (any future) meth sig changes 2024-02-22 14:45:08 -05:00
Tyler Goodlet 5ea112699d Tweak broadcast fanout test to never inf loop
Since a bug in the new `MsgStream.aclose()` impl's drain block logic was
triggering an actual inf loop (by not ever canceller the streamer child
actor), make sure we put a loop limit on the `inf_streamer`()` XD

Also add a bit more deats to the test `print()`s in each actor and toss
in `debug_mode` fixture support.
2024-02-22 14:41:28 -05:00
Tyler Goodlet ce1bcf6d36 Fix overruns test to avoid return-beats-ctxc race
Turns out that py3.11 might be so fast that iterating a EoC-ed
`MsgStream` 1k times is faster then a `Context.cancel()` msg
transmission from a parent actor to it's child (which i guess makes
sense). So tweak the test to delay 5ms between stream async-for iteration
attempts when the stream is detected to be `.closed: bool` (coming in
patch) or `ctx.cancel_called == true`.
2024-02-21 13:53:25 -05:00
Tyler Goodlet 6c9bc627d8 Make ctx tests support `debug_mode: bool` fixture
Such that with `--tpdb` passed (sub)actors will engage the `pdbp` REPL
automatically and so that we can use the new `stackscope` support when
complex cases hang Bo

Also,
- simplified some type-annots (ns paths),
- doc-ed an inter-peer test func with some ascii msg flows,
- added a bottom #TODO for replicating the scenario i hit in `modden`
  where a separate client actor-tree was hanging on cancelling a `bigd`
  sub-workspace..
2024-02-20 15:14:58 -05:00
Tyler Goodlet 5fe3f58ea9 Add a `debug_mode: bool` fixture via `--tpdb` flag
Allows tests (including any `@tractor_test`s) to subscribe to a CLI flag
`--tpdb` (for "tractor python debugger") which the session can provide
to tests which can then proxy the value to `open_root_actor()` (via
`open_nursery()`) when booting the runtime - thus enabling our debug
mode globally to any subscribers B)

This is real handy if you have some failures but can't determine the
root issue without jumping into a `pdbp` REPL inside a (sub-)actor's
spawned-task.
2024-02-20 08:53:37 -05:00
Tyler Goodlet 28ea8e787a Bump timeout on resource cache test a bitty bit. 2024-01-03 22:27:05 -05:00
Tyler Goodlet d651f3d8e9 Tons of interpeer test cleanup
Drop all the nested `@acm` blocks and defunct comments from initial
validations. Add some todos for cases that are still unclear such as
whether the caller / streamer should have `.cancelled_caught == True` in
it's teardown.
2023-10-25 15:21:41 -04:00
Tyler Goodlet ef0cfc4b20 Get inter-peer suite passing with all `Context` state checks!
Definitely needs some cleaning and refinement but this gets us to stage
1 of being pretty frickin correct i'd say 💃
2023-10-23 18:24:23 -04:00
Tyler Goodlet ecb525a2bc Adjust test details where `Context.cancel()` is called
We can now make asserts on `.cancelled_caught` and `_remote_error` vs.
`_local_error`. Expect a runtime error when `Context.open_stream()` is
called AFTER `.cancel()` and the remote `ContextCancelled` hasn't
arrived (yet). Adjust to `'itself'` string in self-cancel case.
2023-10-23 17:49:02 -04:00
Tyler Goodlet b77d123edd Fix `Context.result()` call to be in runtime scope 2023-10-23 17:48:34 -04:00
Tyler Goodlet a3ed30e62b Get remaining suites passing..
..by ensuring `reg_addr` fixture value passthrough to subactor eps
2023-10-19 11:51:47 -04:00
Tyler Goodlet 0e9457299c Port all tests to new `reg_addr` fixture name 2023-10-18 15:39:20 -04:00
Tyler Goodlet 1e689ee701 Rename fixture `arb_addr` -> `reg_addr` and set the session value globally as `._root._default_lo_addrs` 2023-10-18 15:35:35 -04:00
Tyler Goodlet ca3f7a1b6b Add a first serious inter-peer remote cancel suite
Tests that appropriate `Context` exit state, the relay of
a `ContextCancelled` error and its `.canceller: tuple[str, str]` value
are set when an inter-peer cancellation happens via an "out of band"
request method (in this case using `Portal.cancel_actor()` and that
cancellation is propagated "horizontally" to other peers. Verify that
any such cancellation scenario which also experiences an "error during
`ContextCancelled` handling" DOES NOT result in that further error being
suppressed and that the user's exception bubbles out of the
`Context.open_context()` block(s) appropriately!

Likely more tests to come as well as some factoring of the teardown
state checks where possible.

Pertains to serious testing the major work landing in 
2023-10-18 13:59:08 -04:00
Tyler Goodlet c4cd573b26 Drop pause line from ctx cancel handler block in test 2023-10-07 18:51:59 -04:00
Tyler Goodlet 78c0d2b234 Start inter-peer cancellation test mod
Move over relevant test from the "context semantics" test module which
was already verifying peer-caused-`ContextCancelled.canceller: tuple`
error info and propagation during an inter-peer cancellation scenario.

Also begin a more general set of inter-peer cancellation tests starting
with the simplest case where when a peer is cancelled the parent should
NOT get an "muted" `trio.Cancelled` and instead
a `tractor.ContextCancelled` with a `.canceller: tuple` which points to
the sibling actor which requested the peer cancel.
2023-10-06 15:44:26 -04:00
Tyler Goodlet 4f442efbd7 Pass `str` dtype for `use_str` case 2023-06-15 12:20:20 -04:00
Tyler Goodlet a9fc4c1b91 Parametrize rw test with variable frame sizes
Demonstrates fixed size frame-oriented reads by the child where the
parent only transmits a "read" stream msg on "frame fill events" such
that the child incrementally reads the shm list data (much like in
a real-time-buffered streaming system).
2023-06-15 12:20:20 -04:00
Tyler Goodlet 339d787cf8 Add repetitive attach to existing segment test 2023-06-15 12:20:20 -04:00
Tyler Goodlet c32b21b4b1 Add initial readers-writer shm list tests 2023-06-15 12:20:20 -04:00
Tyler Goodlet 041d7da721 Drop caller cancels overrun test; covered in new tests 2023-05-15 10:00:45 -04:00
Tyler Goodlet f9911c22a4 Seriously cover all overrun cases
This actually caught further runtime bugs so it's gud i tried..
Add overrun-ignore enabled / disabled cases and error catching for all
of them. More or less this should cover every possible outcome when
it comes to setting `allow_overruns: bool` i hope XD
2023-05-15 10:00:45 -04:00
Tyler Goodlet 63adf73b4b Adjust aio test for silent cancellation by parent 2023-05-15 10:00:45 -04:00
Tyler Goodlet f1e9c0be93 Fix cluster test to use `allow_overruns` 2023-05-15 10:00:45 -04:00
Tyler Goodlet 6994d2026d Drop brackpressure usage from fan out tests 2023-05-15 10:00:45 -04:00
Tyler Goodlet 03644f59cc Augment test cases for callee-returns-result early
Turns out stuff was totally broken in these cases because we're either
closing the underlying mem chan too early or not handling the
"allow_overruns" mode's cancellation correctly..
2023-05-15 10:00:45 -04:00
Tyler Goodlet 71cd445319 Add new set of context cancellation tests
These will verify new changes to the runtime/messaging core which allows
us to adopt an "ignore cancel if requested by us" style handling of
`ContextCancelled` more like how `trio` does with
`trio.Nursery.cancel_scope.cancel()`. We now expect
a `ContextCancelled.canceller: tuple` which is set to the actor uid of
the actor which requested the cancellation which eventually resulted in
the remote error-msg.

Also adds some experimental tweaks to the "backpressure" test which it
turns out is very problematic in coordination with context cancellation
since blocking on the feed mem chan to some task will block the ipc msg
loop and thus handling of cancellation.. More to come to both the test
and core to address this hopefully since right now this test is failing.
2023-05-15 10:00:45 -04:00
Tyler Goodlet 6758e4487c Drop lingering `pdbpp` comment-refs in tests 2023-05-15 09:14:42 -04:00
Tyler Goodlet 3d202272c4 Change over debugger tests to use `PROMPT` var.. 2023-05-14 21:24:26 -04:00
Tyler Goodlet efb8bec828 Add a basic no-raise-on lag test 2023-01-30 12:26:07 -05:00
Tyler Goodlet c8efcdd0d3 Drop `ReceiveMsgStream` from test suite 2023-01-29 15:03:34 -05:00
Tyler Goodlet af6c325072 Bump up legacy streaming timeout a smidgen 2023-01-29 14:55:02 -05:00
Tyler Goodlet 3967c0ed9e Add a simplified zombie lord specific process reaping test 2023-01-29 14:55:02 -05:00
Tyler Goodlet e34823aab4 Add parent vs. child cancels first cases 2023-01-29 14:55:02 -05:00
Tyler Goodlet 6c35ba2cb6 Add IPC breakage on both parent and child side
With the new fancy `_pytest.pathlib.import_path()` we can do real
parametrization of the example-script-module code and thus configure
whether the child, parent, or both silently break the IPC connection.

Parametrize the test for all the above mentioned cases as well as the
case where the IPC never breaks but we still simulate the user hammering
ctl-c / SIGINT to terminate the actor tree. Adjust expected errors based
on each case and heavily document each of these.
2023-01-29 14:55:02 -05:00
Tyler Goodlet 3a0817ff55 Skip `advanced_faults/` subset in docs examples tests 2023-01-29 14:55:02 -05:00
Tyler Goodlet 7fddb4416b Handle `mp` spawn method cases in test suite 2023-01-29 14:55:02 -05:00
Tyler Goodlet 1d92f2552a Adjust other examples tests to expect `pathlib` objects 2023-01-29 14:55:02 -05:00
Tyler Goodlet 4f8586a928 Wrap ex in new test, change dir helpers to use `pathlib.Path` 2023-01-29 14:55:02 -05:00
Tyler Goodlet 7394a187e0 Name one-way streaming (con generators) what it is 2023-01-29 14:55:02 -05:00
Tyler Goodlet 606efa5bb7 Adjust daemon command to use new `registry_addr` 2023-01-26 16:00:08 -05:00
Tyler Goodlet 6d124db7c9 Never run ctlc-with-intermediary-actor cases locally either 2023-01-26 12:44:13 -05:00
Tyler Goodlet 48f6d514ef Handle earlier name error crash in debug test 2022-12-12 14:05:32 -05:00
Tyler Goodlet d8e48e29ba Add `mngrs=(<gen_comprehension>)` test 2022-12-11 19:56:01 -05:00
Tyler Goodlet c47575997a Expand nested case to include error prop and breakpointing 2022-10-14 19:42:23 -04:00
Tyler Goodlet 0a1bf8e57d Tolerate eg in runtime test teardown 2022-10-14 19:42:23 -04:00
Tyler Goodlet c0dd5d7ffc Adjust multi-daemon test to be more deterministic 2022-10-14 19:42:23 -04:00