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mai-bot/pytests/config_test/test_file_watcher.py
UnCLAS-Prommer fbf946b352 更严厉测试
2026-03-08 17:26:51 +08:00

138 lines
4.1 KiB
Python

from pathlib import Path
from watchfiles import Change
import asyncio
import pytest
from src.config.file_watcher import FileChange, FileWatcher
from typing import Sequence
@pytest.mark.asyncio
async def test_dispatch_changes_with_path_and_change_type_filters(tmp_path: Path):
watcher = FileWatcher(paths=[tmp_path])
target_file = (tmp_path / "bot_config.toml").resolve()
received: list[list[FileChange]] = []
async def callback(changes):
received.append(list(changes))
watcher.subscribe(callback, paths=[target_file], change_types=[Change.modified])
await watcher._dispatch_changes(
[
FileChange(change_type=Change.added, path=target_file),
FileChange(change_type=Change.modified, path=target_file),
FileChange(change_type=Change.modified, path=(tmp_path / "other.toml").resolve()),
]
)
assert len(received) == 1
assert len(received[0]) == 1
assert received[0][0].change_type == Change.modified
assert received[0][0].path == target_file
@pytest.mark.asyncio
async def test_sync_callback_supported(tmp_path: Path):
watcher = FileWatcher(paths=[tmp_path])
target_file = (tmp_path / "model_config.toml").resolve()
received_paths: list[Path] = []
def sync_callback(changes):
received_paths.extend(change.path for change in changes)
watcher.subscribe(sync_callback, paths=[target_file])
await watcher._dispatch_changes([FileChange(change_type=Change.modified, path=target_file)])
assert received_paths == [target_file]
@pytest.mark.asyncio
async def test_callback_timeout_and_cooldown(tmp_path: Path):
watcher = FileWatcher(
paths=[tmp_path],
callback_timeout_s=0.05,
callback_failure_threshold=2,
callback_cooldown_s=0.2,
)
target_file = (tmp_path / "bot_config.toml").resolve()
async def slow_callback(changes):
await asyncio.sleep(0.2)
watcher.subscribe(slow_callback, paths=[target_file])
await watcher._dispatch_changes([FileChange(change_type=Change.modified, path=target_file)])
await watcher._dispatch_changes([FileChange(change_type=Change.modified, path=target_file)])
stats_after_failures = watcher.stats
assert stats_after_failures.callbacks_timed_out == 2
assert stats_after_failures.callbacks_failed == 2
await watcher._dispatch_changes([FileChange(change_type=Change.modified, path=target_file)])
stats_after_cooldown_skip = watcher.stats
assert stats_after_cooldown_skip.callbacks_skipped_cooldown >= 1
@pytest.mark.asyncio
async def test_start_requires_subscription(tmp_path: Path):
watcher = FileWatcher(paths=[tmp_path])
with pytest.raises(RuntimeError):
await watcher.start()
@pytest.mark.asyncio
async def test_unsubscribe_stops_dispatch(tmp_path: Path):
watcher = FileWatcher(paths=[tmp_path])
target_file = (tmp_path / "bot_config.toml").resolve()
calls = 0
async def callback(changes):
nonlocal calls
calls += 1
subscription_id = watcher.subscribe(callback, paths=[target_file])
assert watcher.unsubscribe(subscription_id) is True
await watcher._dispatch_changes([FileChange(change_type=Change.modified, path=target_file)])
assert calls == 0
@pytest.mark.asyncio
async def test_add_callback_while_watcher_running(tmp_path: Path):
dirs = (tmp_path / "a_dir").resolve()
dirs.mkdir(exist_ok=True)
file = (dirs / "a.toml").resolve()
file.touch()
watcher = FileWatcher(paths=[dirs])
calls = 0
async def callback(changes: Sequence[FileChange]):
nonlocal calls
print(f"Callback called with changes: {[f'{change.change_type} {change.path}' for change in changes]}")
calls += 1
uuid = watcher.subscribe(callback, paths=[file])
await watcher.start()
with file.open("w") as f:
f.write("change")
await asyncio.sleep(0.5)
with file.open("r") as f:
content = f.read()
print(content)
assert calls == 1
watcher.unsubscribe(uuid)
with file.open("w") as f:
f.write("change2")
await asyncio.sleep(0.5)
assert calls == 1