Second, deeper pass over tools/gateway/hermes_cli plus first pass over
the trees wave 1 missed (acp, acp_adapter, skills, computer_use, docker,
dashboard, conformance, monitoring, secret_sources, hermes_state,
providers). Same rubric as wave 1 (AGENTS.md test policy); security,
alternation/caching invariants, issue-number regressions, and E2E kept.
Real test-quality fixes found and rooted out along the way:
- tests/tools/test_command_guards.py made real auxiliary-LLM HTTPS calls
(DEFAULT_CONFIG smart-approval leaked in) — pinned approval
mode=manual via autouse fixture: 17.4s → 0.4s.
- test_model_switch_custom_providers.py / test_user_providers_model_switch.py
silently probed live provider catalogs (~2s/test) — stubbed
cached_provider_model_ids/provider_model_ids/fetch_api_models.
- test_telegram_noise_filter.py: 15-platform copy-paste matrix over
shared gateway.run logic → 3 representative platforms (55s → 3.9s).
- test_gateway_shutdown.py: stop()'s 5s interrupt-deadline loop spun on
MagicMock agents — interrupt.side_effect now clears _running_agents
(22s → 1.0s).
- test_gateway_inactivity_timeout.py poll-harness timings shrunk 3-5x
(24s → 1.1s); test_mcp_stability.py backoff/SIGTERM-grace sleeps
patched (15.4s → 2.5s); test_async_delegation.py negative-drain wait
5s → 0.5s.
- test_telegram_init_deadline.py: loop-block margin restored to 1.0s
with rationale comment — the watchdog-dump assertion needs the loop
blocked well past deadline+grace under parallel load (flaked once in
the 40-worker verification run at a 0.2s margin).
Verification: full hermetic suite via scripts/run_tests.sh —
2,438 files, 21,718 tests passed, 0 failed, 293.9s wall.
Suite totals vs original baseline: 46,820 → 19,757 test functions
(−57.8%), wall 583.5s → 293.9s (−50%), subprocess CPU 13,564s → 11,623s.
The subagent-demotion busy-handler test asserted the internal
merge_pending_message_event call, which the FIFO refactor replaced with
_queue_or_replace_pending_event. Assert the behavioral outcome (the
follow-up lands in the pending slot for the next turn) instead — same
fix already applied to the two steer-fallback tests.
17 new tests in tests/gateway/test_subagent_protection_30170.py pin
down both the detection helper and the demotion behaviour:
* TestAgentHasActiveSubagents — 11 cases covering the precision and
defensiveness of _agent_has_active_subagents:
- returns False for None, _AGENT_PENDING_SENTINEL, and stub
agents that lack the _active_children attribute;
- returns False for an empty list (the steady state of an idle
AIAgent);
- returns True for one or many children;
- works when _active_children_lock is None (test stubs);
- rejects truthy MagicMock auto-attributes — this is the
regression-guard for "every MagicMock-based gateway test
suddenly demotes to queue mode" (which is how this was
originally found);
- accepts list/tuple/set as the children container.
* TestBusyHandlerDemotesInterruptForSubagents — 6 cases driving
_handle_active_session_busy_message directly:
- parent.interrupt is NOT called when subagents are active,
message is still merged into the pending queue;
- ack copy mentions "Subagent working", "queued", and the
/stop escape hatch — and does NOT mention "Interrupting";
- with no subagents, behaviour is byte-identical to the
pre-#30170 interrupt path (parent.interrupt called with the
user text, ack says "Interrupting");
- configured queue mode keeps its vanilla "Queued for the next
turn" ack (the #30170 demotion-specific copy must NOT fire);
- configured steer mode still routes to running_agent.steer()
even when subagents are active (the guard is interrupt-only);
- _AGENT_PENDING_SENTINEL does not trigger demotion.
Refs #30170.
Teknium