tui_gateway.server registers two atexit hooks at module load time:
ThreadPoolExecutor shutdown (line 170) and _shutdown_sessions (line 336).
Three test files reloaded the module on each fixture teardown to reset
per-test state. Each reload re-runs module-level code, including the
atexit registrations — duplicates accumulate across the test session.
At pytest interpreter shutdown the duplicated atexit hooks race the
stderr buffer flush:
Fatal Python error: _enter_buffered_busy: could not acquire lock
for <_io.BufferedWriter name='<stderr>'> at interpreter shutdown,
possibly due to daemon threads
pytest reports 'tests passed but the slice exited non-zero', and the
shard turns red on CI. Surfaced today on PR #34193's test slice 1
(204 files, 3572 tests passed, then Fatal Python error during exit).
Fix: drop importlib.reload(mod) from the three fixtures that have it.
Per-test reset is handled by clearing the mutable session dicts
(_sessions, _pending, _answers). _methods is also no longer cleared —
it's populated at module import time and would only be re-populated by
a reload, so clearing it without reload broke session.resume /
command.dispatch / slash.exec method registration across tests.
Affected fixtures:
- tests/tui_gateway/test_goal_command.py
- tests/tui_gateway/test_protocol.py
- tests/tui_gateway/test_review_summary_callback.py
The second reload in test_protocol.py at line 211 (reload of
tui_gateway.transport) is preserved — transport.py has no atexit hooks
or threads, so reload is safe there.
Tests: 84/84 in tests/tui_gateway/ pass cleanly with exit code 0; no
Fatal Python error at interpreter shutdown.
/goal was silently broken outside the classic CLI.
TUI: /goal was routed through the HermesCLI slash-worker subprocess,
which set the goal row in SessionDB but then called
_pending_input.put(state.goal) — the subprocess has no reader for that
queue, so the kickoff message was discarded. No post-turn judge was
wired into prompt.submit either, so even a manual kickoff would not
continue the goal loop. Intercept /goal in command.dispatch instead,
drive GoalManager directly, and return {type: send, notice, message}
so the TUI client renders the Goal-set notice and fires the kickoff.
Run the judge in _run_prompt_submit after message.complete, surface
the verdict via status.update {kind: goal}, and chain the continuation
turn after the running guard is released.
Gateway: _post_turn_goal_continuation was gated on
hasattr(adapter, 'send_message'), but adapters only expose send().
That branch was dead on every platform — users never saw
'✓ Goal achieved', 'Continuing toward goal', or budget-exhausted
messages. Replace the dead call with adapter.send(chat_id, content,
metadata) and drop a broken reference to self._loop.
Tests:
- tests/tui_gateway/test_goal_command.py — full /goal dispatch matrix
(set / status / pause / resume / clear / stop / done / whitespace)
plus regressions for slash.exec → 4018 and 'goal' staying in
_PENDING_INPUT_COMMANDS.
- tests/gateway/test_goal_verdict_send.py — locks in the adapter.send
path for done / continue / budget-exhausted and verifies the hook
no-ops when no goal is set or the adapter lacks send().
