tractor/tests
Tyler Goodlet 4f863a6989 Refine and test `tractor.pause_from_sync()`
Now supports use from any `trio` task, any sync thread started with
`trio.to_thread.run_sync()` AND also via `breakpoint()` builtin API!
The only bit missing now is support for `asyncio` tasks when in infected
mode.. Bo

`greenback` setup/API adjustments:
- move `._rpc.maybe_import_gb()` to -> `devx._debug` and factor out the cached
  import checking into a sync func whilst placing the async `.ensure_portal()`
  bootstrapping into a new async `maybe_init_greenback()`.
- use the new init-er func inside `open_root_actor()` with the output
  predicating whether we override the `breakpoint()` hook.

core `devx._debug` implementation deatz:
- make `mk_mpdb()` only return the `pdp.Pdb` subtype instance since
  the sigint unshielding func is now accessible from the `Lock`
  singleton from anywhere.

- add non-main thread support (at least for `trio.to_thread` use cases)
  to our `Lock` with a new `.is_trio_thread()` predicate that delegates
  directly to `trio`'s internal version.

- do `Lock.is_trio_thread()` checks inside any methods which require
  special provisions when invoked from a non-main `trio` thread:
  - `.[un]shield_sigint()` methods since `signal.signal` usage is only
    allowed from cpython's main thread.
  - `.release()` since `trio.StrictFIFOLock` can only be called from
    a `trio` task.

- rework `.pause_from_sync()` itself to directly call `._set_trace()`
  and don't bother with `greenback._await()` when we're already calling
  it from a `.to_thread.run_sync()` thread, oh and try to use the
  thread/task name when setting `Lock.local_task_in_debug`.

- make it an RTE for now if you try to use `.pause_from_sync()` from any
  infected-`asyncio` task, but support is (hopefully) coming soon!

For testing we add a new `test_debugger.py::test_pause_from_sync()`
which includes a ctrl-c parametrization around the
`examples/debugging/sync_bp.py` script which includes all currently
supported/working usages:
- `tractor.pause_from_sync()`.
- via `breakpoint()` overload.
- from a `trio.to_thread.run_sync()` spawn.
2024-03-22 19:58:25 -04:00
..
conftest.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_2way.py Move context-streaming operational tests into one mod 2021-12-06 16:45:44 -05:00
test_advanced_faults.py Adjust advanced faults test(s) for absorbed EoCs 2024-03-19 19:33:06 -04:00
test_advanced_streaming.py Tweak some tests for spurious failues 2024-03-11 10:37:34 -04:00
test_cancellation.py Adjust all `RemoteActorError.type` using tests 2024-03-19 18:08:54 -04:00
test_child_manages_service_nursery.py Adjust all `RemoteActorError.type` using tests 2024-03-19 18:08:54 -04:00
test_clustering.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_context_stream_semantics.py Adjust all `RemoteActorError.type` using tests 2024-03-19 18:08:54 -04:00
test_debugger.py Refine and test `tractor.pause_from_sync()` 2024-03-22 19:58:25 -04:00
test_discovery.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_docs_examples.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_infected_asyncio.py Adjust all `RemoteActorError.type` using tests 2024-03-19 18:08:54 -04:00
test_inter_peer_cancellation.py Extend inter-peer cancel tests for "inceptions" 2024-03-20 10:29:40 -04:00
test_legacy_one_way_streaming.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_local.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_multi_program.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_pubsub.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_resource_cache.py Bump timeout on resource cache test a bitty bit. 2024-01-03 22:27:05 -05:00
test_rpc.py Adjust all `RemoteActorError.type` using tests 2024-03-19 18:08:54 -04:00
test_runtime.py Drop now-deprecated deps on modern `trio`/Python 2024-03-13 18:41:24 -04:00
test_shm.py Pass `str` dtype for `use_str` case 2023-06-15 12:20:20 -04:00
test_spawning.py Add (back) a `tractor._testing` sub-pkg 2024-03-13 09:09:08 -04:00
test_task_broadcasting.py Port all tests to new `reg_addr` fixture name 2023-10-18 15:39:20 -04:00
test_trioisms.py Drop now-deprecated deps on modern `trio`/Python 2024-03-13 18:41:24 -04:00