hermes-agent/tests/test_tui_gateway_loop_noise.py
Teknium 6b81590c55
test: prune low-value tests suite-wide (wave 1) — 46,820 → 28,106 test functions
Systematic prune per AGENTS.md test policy, one pass over every major
test tree (gateway, hermes_cli, tools, agent, run_agent, plugins, cli,
cron, tui_gateway, honcho/openviking, root-level):

- DELETE: source-reading tests (read_text/getsource on prod files),
  change-detector tests (exact catalog counts, model-name snapshots,
  config version literals), mock-echo tests (assert a mock returns what
  it was told), assertion-free/trivial tests, near-duplicate
  parametrizations (boundaries + one representative kept), async/sync
  twin duplicates, cosmetic within-file variations.
- KEEP (mandatory): security/redaction/approval guards, message-role
  alternation invariants, prompt-caching/deterministic-call-id
  invariants, issue-number regression tests (deduped), E2E tests.
- 6 test files deleted outright (script-style/no-assert or fully
  redundant); conftest.py, fakes/, fixtures/ untouched.
- tests/acp/conftest.py added: autouse fixture stubs the live
  models.dev/GitHub/Copilot/Anthropic inventory fetches that ACP server
  tests performed on every session create — test_server.py 147s → 3.4s,
  and the tests are now genuinely hermetic.
- Sleep-based slowness shrunk where safe (codex_ttfb_watchdog,
  compression_concurrent_fork, etc.); no wall-clock assertion tightened.

Verification: full hermetic suite via scripts/run_tests.sh —
2439 files, 31,130 tests passed, 0 failed, 0 flaky retries, 315s wall
(baseline: 583s wall, 13,564s subprocess CPU).
2026-07-29 13:10:23 -07:00

88 lines
2.5 KiB
Python

"""Tests for tui_gateway.loop_noise — the WS peer-hangup teardown filter (#50005)."""
from __future__ import annotations
import asyncio
import pytest
from tui_gateway.loop_noise import (
_is_benign_teardown,
install_loop_noise_filter,
)
class _FakeConnectionLostCallback:
"""Stand-in whose repr matches asyncio's ``_call_connection_lost`` flood."""
def __repr__(self) -> str:
return "<Handle _ProactorBasePipeTransport._call_connection_lost(None)>"
def test_benign_teardown_matches_reset_in_connection_lost():
ctx = {
"exception": ConnectionResetError(10054, "forcibly closed"),
"handle": _FakeConnectionLostCallback(),
}
assert _is_benign_teardown(ctx) is True
def test_benign_teardown_matches_aborted_and_broken_pipe():
for exc in (
ConnectionAbortedError(10053, "aborted"),
BrokenPipeError("epipe"),
):
ctx = {"exception": exc, "callback": _FakeConnectionLostCallback()}
assert _is_benign_teardown(ctx) is True
def test_reset_outside_connection_lost_is_not_suppressed():
# Same error type, but NOT from the connection-lost teardown path — must
# fall through to the default handler.
ctx = {
"exception": ConnectionResetError("reset in a real handler"),
"handle": "<Handle some_other_handler()>",
}
assert _is_benign_teardown(ctx) is False
def test_unrelated_exception_is_not_suppressed():
ctx = {
"exception": ValueError("boom"),
"handle": _FakeConnectionLostCallback(),
}
assert _is_benign_teardown(ctx) is False
def test_no_exception_is_not_suppressed():
assert _is_benign_teardown({"message": "loop warning, no exc"}) is False
def test_install_suppresses_flood_and_forwards_real_errors():
loop = asyncio.new_event_loop()
try:
forwarded: list[dict] = []
loop.set_exception_handler(lambda _loop, ctx: forwarded.append(ctx))
install_loop_noise_filter(loop)
# Benign teardown flood → swallowed, not forwarded.
loop.call_exception_handler(
{
"exception": ConnectionResetError(10054, "forcibly closed"),
"handle": _FakeConnectionLostCallback(),
}
)
assert forwarded == []
# Genuine loop error → forwarded to the previous handler unchanged.
real_ctx = {"exception": RuntimeError("genuine loop bug")}
loop.call_exception_handler(real_ctx)
assert len(forwarded) == 1
assert forwarded[0] is real_ctx
finally:
loop.close()