anti
fbf289ff63
Land the `decnet bus` worker and `get_bus()` factory. Transport is a host-local UNIX-domain socket (0660, group=decnet); authz is the file mode. Wire framing is a tiny verb-line + 4-byte-BE length + orjson body. NATS-style wildcard topics (`*`, `>`). At-most-once, fire-and-forget — DB stays the source of truth. `FakeBus` / `NullBus` for tests and the disabled path. Cross-host federation is deferred to a future `--bridge-tcp` mode; DEBT-030 is master-only and unblocked.
69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
"""Tests for :func:`decnet.bus.worker.bus_worker` lifecycle + heartbeat."""
|
|
from __future__ import annotations
|
|
|
|
import asyncio
|
|
import pathlib
|
|
|
|
import pytest
|
|
|
|
from decnet.bus import topics
|
|
from decnet.bus.unix_client import UnixSocketBus
|
|
from decnet.bus.worker import bus_worker
|
|
|
|
|
|
class TestBusWorker:
|
|
async def test_worker_serves_and_heartbeats(
|
|
self, tmp_path: pathlib.Path,
|
|
) -> None:
|
|
sock = tmp_path / "bus.sock"
|
|
task = asyncio.create_task(
|
|
bus_worker(sock, group=None, heartbeat_interval=1),
|
|
)
|
|
# Wait for the socket to exist.
|
|
for _ in range(40):
|
|
if sock.exists():
|
|
break
|
|
await asyncio.sleep(0.05)
|
|
assert sock.exists(), "bus worker did not create socket"
|
|
|
|
client = UnixSocketBus(sock, client_name="hb-watcher")
|
|
await client.connect()
|
|
sub = client.subscribe(topics.system(topics.SYSTEM_BUS_HEALTH))
|
|
try:
|
|
async with sub:
|
|
async with asyncio.timeout(3.0):
|
|
async for event in sub:
|
|
assert event.topic == "system.bus.health"
|
|
assert "pid" in event.payload
|
|
break
|
|
finally:
|
|
await client.close()
|
|
task.cancel()
|
|
try:
|
|
await task
|
|
except asyncio.CancelledError:
|
|
pass
|
|
|
|
async def test_worker_creates_home_fallback_parent(
|
|
self, tmp_path: pathlib.Path, monkeypatch: pytest.MonkeyPatch,
|
|
) -> None:
|
|
# Point Path.home() at tmp_path so the "auto-mkdir ~/.decnet" branch
|
|
# activates without touching the real home directory.
|
|
monkeypatch.setattr(pathlib.Path, "home", classmethod(lambda cls: tmp_path))
|
|
sock = tmp_path / ".decnet" / "bus.sock"
|
|
task = asyncio.create_task(
|
|
bus_worker(sock, group=None, heartbeat_interval=60),
|
|
)
|
|
try:
|
|
for _ in range(40):
|
|
if sock.exists():
|
|
break
|
|
await asyncio.sleep(0.05)
|
|
assert sock.exists()
|
|
finally:
|
|
task.cancel()
|
|
try:
|
|
await task
|
|
except asyncio.CancelledError:
|
|
pass
|