Files
AstrBot/tests/unit/test_event_loop_diagnostics.py
2026-07-07 00:03:39 +08:00

100 lines
3.4 KiB
Python

import asyncio
import pytest
from astrbot.core.utils import event_loop_diagnostics as diagnostics
def test_load_event_loop_diagnostic_settings_defaults():
"""Default settings enable lag monitoring and stack dump watchdog."""
settings = diagnostics.load_event_loop_diagnostic_settings()
assert settings.lag_monitor_enabled is True
assert settings.lag_monitor_interval == diagnostics.DEFAULT_LAG_MONITOR_INTERVAL
assert settings.lag_monitor_threshold == diagnostics.DEFAULT_LAG_MONITOR_THRESHOLD
assert settings.watchdog_enabled is True
assert settings.watchdog_interval == diagnostics.DEFAULT_WATCHDOG_INTERVAL
assert settings.watchdog_timeout == diagnostics.DEFAULT_WATCHDOG_TIMEOUT
assert settings.watchdog_log_max_bytes == diagnostics.DEFAULT_WATCHDOG_LOG_MAX_BYTES
@pytest.mark.asyncio
async def test_create_event_loop_diagnostic_tasks_defaults():
"""Default diagnostics should create both event loop diagnostic tasks."""
tasks = diagnostics.create_event_loop_diagnostic_tasks()
try:
assert [task.get_name() for task in tasks] == [
"event_loop_lag_monitor",
"event_loop_faulthandler_watchdog",
]
finally:
for task in tasks:
task.cancel()
await asyncio.gather(*tasks, return_exceptions=True)
@pytest.mark.asyncio
async def test_faulthandler_watchdog_cancels_pending_dump(monkeypatch):
"""The faulthandler watchdog should cancel its pending dump on shutdown."""
calls = []
class FakeFaultHandler:
def cancel_dump_traceback_later(self):
calls.append("cancel")
def dump_traceback_later(self, timeout, repeat, file):
calls.append(("dump", timeout, repeat, file))
fake_faulthandler = FakeFaultHandler()
monkeypatch.setattr(diagnostics, "faulthandler", fake_faulthandler)
task = asyncio.create_task(
diagnostics.faulthandler_event_loop_watchdog(timeout=10, interval=1)
)
await asyncio.sleep(0)
task.cancel()
await asyncio.gather(task, return_exceptions=True)
assert any(isinstance(call, tuple) and call[0] == "dump" for call in calls)
assert calls[-1] == "cancel"
@pytest.mark.asyncio
async def test_faulthandler_watchdog_writes_rotating_log(tmp_path, monkeypatch):
"""The faulthandler watchdog should write to and rotate its log file."""
log_path = tmp_path / "logs" / "event_loop_watchdog.log"
log_path.parent.mkdir()
log_path.write_text("x" * 8, encoding="utf-8")
calls = []
class FakeFaultHandler:
def cancel_dump_traceback_later(self):
calls.append("cancel")
def dump_traceback_later(self, timeout, repeat, file):
calls.append(("dump", timeout, repeat, file.name))
file.write("watchdog dump\n")
file.flush()
fake_faulthandler = FakeFaultHandler()
monkeypatch.setattr(diagnostics, "faulthandler", fake_faulthandler)
task = asyncio.create_task(
diagnostics.faulthandler_event_loop_watchdog(
timeout=10,
interval=1,
dump_path=log_path,
max_bytes=4,
)
)
await asyncio.sleep(0)
task.cancel()
await asyncio.gather(task, return_exceptions=True)
assert log_path.read_text(encoding="utf-8") == "watchdog dump\n"
assert log_path.with_name("event_loop_watchdog.log.1").read_text(
encoding="utf-8"
) == "x" * 8
assert any(isinstance(call, tuple) and call[0] == "dump" for call in calls)