Files
odysseus/tests/test_email_polly_imap_leak.py
raf 2efebcc278 fix(tests): allow multiple logout calls when IMAP fallback reconnects (#1976)
_latest_inbox_fallback_uids logs out the broken connection before
reconnecting. The outer finally then logs out the new
connection. Both logouts are correct, the test assertion of == 1
was written before the reconnect logic existed. Changed to >= 1.
2026-06-04 02:56:05 +01:00

113 lines
5.0 KiB
Python

"""Pin the IMAP connection-cleanup guarantee in the background auto-summarize poller.
`_auto_summarize_pass_single` in `routes/email_pollers.py` is invoked on a
30-minute background cadence (via `_auto_summarize_poller`) and on-demand
for one-shot scheduled tasks. It opens a long-lived IMAP connection at
line 171 (`conn = _imap_connect(...)`) and then performs ~700 lines of
work — IMAP `select`/`FETCH`/`SEARCH`, network POSTs to the LLM endpoint,
SQLite writes, and per-uid awaits.
If anything in that body raised before this fix, the outer `except`
block at line 921 caught it, logged `"Auto-summarize pass error: ..."`,
and returned. The IMAP `conn.logout()` was *only* called on three safe
paths (early `"No recent emails"`, early `"No model configured"`, and
the happy path at the very end), so any exception meant the socket
stayed open until the IMAP server's idle timeout killed it. For a
background poller that runs every 30 minutes, that is a slow but
unbounded connection leak per crashed pass.
This is the exact same shape as the just-merged upstream fixes #1325
(`_imap_move` in `routes/email_helpers.py`) and #1330 (`_list_emails_sync`
in `routes/email_routes.py`), but the request-path fixes did not cover
the *background* poller path — so this is the obvious third instance a
careful reviewer would ask "did we get all of them?".
The fix is the same try/finally pattern from #1330:
1. initialize `conn = None` before the try
2. let the try-block assign `conn = _imap_connect(...)`
3. drop the three explicit `conn.logout()` calls on safe paths
4. add a `finally:` block that calls `conn.logout()` if `conn` was set
The regression test below triggers an exception in the post-`conn` body
(force `conn.select` to raise) and asserts `conn.logout` was called.
Pre-fix the assertion fails because the `except` branch never reaches
`conn.logout`; post-fix the `finally` block guarantees it.
"""
import os
import sys
import tempfile
from pathlib import Path
from unittest.mock import MagicMock
# Point every data-dir-using dependency (core.database, secret_storage,
# routes.email_helpers, ...) at a per-process tmp dir BEFORE any
# `from routes...` import runs. Without this the SQLAlchemy engine
# created at module-import time would try to open `./data/app.db`,
# which doesn't exist on bare CI machines, and our test would fail
# with `OperationalError: unable to open database file` long before
# the leak regression had a chance to fire.
_TMP_DATA = Path(tempfile.mkdtemp(prefix="odysseus-email-polly-leak-"))
os.environ.setdefault("DATA_DIR", str(_TMP_DATA))
os.environ.setdefault("DATABASE_URL", f"sqlite:///{_TMP_DATA / 'app.db'}")
PROJECT_ROOT = Path(__file__).resolve().parent.parent
if str(PROJECT_ROOT) not in sys.path:
sys.path.insert(0, str(PROJECT_ROOT))
async def test_auto_summarize_pass_logs_out_imap_on_select_failure(monkeypatch):
"""An exception after `conn = _imap_connect(...)` must still call
`conn.logout()`. Pre-fix, the outer `except` returned without
logging out, leaking the IMAP socket. The `select` call on the
post-connect path is the first un-guarded IMAP call, so forcing
it to raise lands us in the outer `except` cleanly without any
of the inner try/except scans swallowing the error first."""
import routes.email_pollers as email_pollers
captured = {}
class _Conn:
def select(self, folder, readonly=True):
captured.setdefault("select_calls", []).append(folder)
raise RuntimeError("simulated IMAP select failure")
def logout(self):
captured["logout_calls"] = captured.get("logout_calls", 0) + 1
def fake_imap_connect(account_id=None, owner=""):
captured["connect_called"] = True
return _Conn()
def fake_owner_for(account_id):
return "alice"
def fake_load_settings():
# Enable at least one auto_* so we get past the early
# "Nothing to do" return at line 159 (which returns before
# `conn` is created and so is not relevant to the leak).
return {"email_auto_summarize": True}
monkeypatch.setattr(email_pollers, "_imap_connect", fake_imap_connect)
monkeypatch.setattr(email_pollers, "_owner_for_email_account", fake_owner_for)
monkeypatch.setattr(email_pollers, "_load_settings", fake_load_settings)
result = await email_pollers._auto_summarize_pass_single(
account_id="acct-1", progress_cb=None,
)
assert captured.get("connect_called") is True, (
"test setup: _imap_connect must be reached for the leak to apply"
)
assert captured.get("logout_calls", 0) >= 1, (
f"conn.logout() must be called at least once on the error path "
f"(IMAP leak fix). Got logout_calls={captured.get('logout_calls')}, "
f"select_calls={captured.get('select_calls')}. Pre-fix the "
f"outer `except` returned without logging out the IMAP socket."
)
assert result.startswith("Error:"), (
f"On simulated failure, the function should return an 'Error: ...' "
f"string (matches the outer except at line 921). Got: {result!r}"
)