Files
DECNET/tests/clustering/test_worker_publish.py
anti b5ce236cab test(bus): pin scope-(2) producer wiring for reuse / clusterer / intel
Three producer-side regression guards. Each drives the worker's run
loop with a fake bus + stubbed repo and asserts the documented topic
fires when the producer has data:

- reuse correlator → credential.reuse.detected (one finding row)
- clusterer → identity.formed + identity.merged (one ClusterResult)
- intel worker → attacker.intel.enriched (one unenriched attacker
  + a fake provider returning a "malicious" verdict)

These complement commit 1's attacker.session.ended producer test —
together the four cover every TTP-relevant publisher in the tree
(modulo email.received, which has no producer yet; tracked in
DEBT.md).
2026-05-02 02:38:24 -04:00

97 lines
2.8 KiB
Python

"""Clusterer publishes ``identity.formed`` and ``identity.merged``.
Pins the producer wiring. The clusterer reports its tick output via a
:class:`ClusterResult`; the worker fans the four sub-lists out to the
matching ``identity.*`` topics. This test runs one tick with a fake
clusterer that returns a result containing one formed and one merged
identity, and asserts the bus saw both envelopes.
"""
from __future__ import annotations
import asyncio
from typing import Any
import pytest
from decnet.bus import topics as _topics
from decnet.bus.fake import FakeBus
from decnet.clustering import worker as _cw
from decnet.clustering.base import ClusterResult, Clusterer
from decnet.web.db.repository import BaseRepository
class _FakeClusterer(Clusterer):
name = "fake"
def __init__(self, results: list[ClusterResult]) -> None:
self._results = list(results)
async def tick(self, _repo: BaseRepository) -> ClusterResult:
if self._results:
return self._results.pop(0)
return ClusterResult()
@pytest.mark.asyncio
async def test_clusterer_publishes_identity_formed_and_merged(
monkeypatch: pytest.MonkeyPatch,
) -> None:
bus = FakeBus()
await bus.connect()
monkeypatch.setattr(_cw, "get_bus", lambda *_a, **_kw: bus)
captured: list[tuple[str, dict[str, Any]]] = []
sub = bus.subscribe("identity.>")
async def drain() -> None:
try:
async with sub:
async for ev in sub:
captured.append((ev.topic, ev.payload))
except Exception:
pass
drain_task = asyncio.create_task(drain())
await asyncio.sleep(0)
result = ClusterResult(
identities_formed=[
{"identity_uuid": "id-1", "observation_uuids": ["obs-1", "obs-2"]},
],
identities_merged=[
{"winner_uuid": "id-1", "loser_uuid": "id-9"},
],
)
fake = _FakeClusterer([result])
shutdown = asyncio.Event()
class _RepoStub:
pass
loop_task = asyncio.create_task(_cw.run_clusterer_loop(
_RepoStub(), # type: ignore[arg-type]
poll_interval_secs=0.05, clusterer=fake,
shutdown=shutdown,
))
await asyncio.sleep(0.15)
shutdown.set()
await asyncio.wait_for(loop_task, timeout=2.0)
drain_task.cancel()
await bus.close()
topics_seen = [t for t, _ in captured]
assert _topics.identity(_topics.IDENTITY_FORMED) in topics_seen
assert _topics.identity(_topics.IDENTITY_MERGED) in topics_seen
formed = next(
p for t, p in captured
if t == _topics.identity(_topics.IDENTITY_FORMED)
)
assert formed["identity_uuid"] == "id-1"
merged = next(
p for t, p in captured
if t == _topics.identity(_topics.IDENTITY_MERGED)
)
assert merged["winner_uuid"] == "id-1"
assert merged["loser_uuid"] == "id-9"