Files
MoviePilot/tests/test_subscribe_delete_command.py
T

302 lines
9.3 KiB
Python

"""订阅删除应用用例的事务、权限与副作用时序测试。"""
from unittest.mock import AsyncMock
import pytest
from app.application.subscription.delete import (
DeleteSubscribeCommand,
SubscribeDeletionActor,
SubscribeDeletionCandidate,
)
from app.db.models.subscribe import Subscribe
from app.db.oper.subscribe import SubscribeOper
class _Repository:
"""记录订阅删除用例数据访问顺序的仓储替身。"""
def __init__(self, candidate, calls):
"""保存候选订阅和共享调用序列。"""
self.candidate = candidate
self.calls = calls
async def get_candidate(self, subscribe_id):
"""返回预设候选订阅。"""
self.calls.append(("get", subscribe_id))
return self.candidate
async def stage_delete(self, subscribe_id):
"""记录待删除的订阅编号。"""
self.calls.append(("delete", subscribe_id))
class _UnitOfWork:
"""可注入提交异常的事务替身。"""
def __init__(self, calls, commit_error=None):
"""保存共享调用序列与可选提交异常。"""
self.calls = calls
self.commit_error = commit_error
async def commit(self):
"""记录提交并按需抛出异常。"""
self.calls.append(("commit",))
if self.commit_error:
raise self.commit_error
async def rollback(self):
"""记录回滚。"""
self.calls.append(("rollback",))
class _Outbox:
"""记录订阅删除 intent 暂存和收口顺序的 outbox 替身。"""
def __init__(self, calls, stage_error=None):
"""保存共享调用序列与可选暂存异常。"""
self.calls = calls
self.stage_error = stage_error
async def stage(self, intent, _now):
"""记录 intent,并按需模拟持久化失败。"""
self.calls.append(("outbox_stage", intent))
if self.stage_error:
raise self.stage_error
async def complete_by_event_key(self, event_key, _completed_at):
"""记录即时事件成功后的 intent 收口。"""
self.calls.append(("outbox_complete", event_key))
def _candidate(username="alice"):
"""构造带完整事件身份字段的订阅删除候选。"""
return SubscribeDeletionCandidate(
subscribe_id=7,
username=username,
event_payload={
"id": 7,
"username": username,
"media_source": "tmdb",
"media_id": "123",
"season": 2,
"name": "测试订阅",
},
)
def _command(
candidate,
calls,
commit_error=None,
event_error=None,
report_error=None,
outbox=None,
):
"""构造可观察事件与上报失败的订阅删除用例。"""
async def publish(payload):
"""记录删除事件并按需失败。"""
calls.append(("event", payload["subscribe_id"], payload))
if event_error:
raise event_error
def report(payload):
"""记录删除统计并按需失败。"""
calls.append(("report", payload))
if report_error:
raise report_error
return DeleteSubscribeCommand(
repository=_Repository(candidate, calls),
unit_of_work=_UnitOfWork(calls, commit_error),
publish_deleted=publish,
report_deleted=report,
outbox=outbox,
)
@pytest.mark.asyncio
async def test_owner_delete_commits_before_event_and_report():
"""owner 删除成功时必须先提交,再按原顺序发送事件和上报。"""
calls = []
command = _command(_candidate(), calls)
deleted = await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
)
assert deleted is True
assert [call[0] for call in calls] == ["get", "delete", "commit", "event", "report"]
assert calls[3][2]["subscribe_info"] == _candidate().event_payload
assert calls[3][2]["idempotency_key"].startswith("subscribe.deleted:7:")
assert calls[4][1] == _candidate().event_payload
@pytest.mark.asyncio
@pytest.mark.parametrize("candidate", [None, _candidate("bob"), _candidate(None)])
async def test_regular_user_cannot_delete_missing_other_or_legacy_subscribe(candidate):
"""普通用户对不存在、他人和 legacy 订阅保持无痕成功语义。"""
calls = []
command = _command(candidate, calls)
deleted = await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
)
assert deleted is False
assert calls == [("get", 7)]
@pytest.mark.asyncio
async def test_superuser_can_delete_other_users_subscribe():
"""超级用户保留全局订阅删除权限。"""
calls = []
command = _command(_candidate("bob"), calls)
deleted = await command.execute(
7,
SubscribeDeletionActor(username="admin", is_superuser=True),
)
assert deleted is True
assert [call[0] for call in calls] == ["get", "delete", "commit", "event", "report"]
@pytest.mark.asyncio
async def test_commit_failure_rolls_back_without_event_or_report():
"""提交失败必须回滚,且不得发送成功事件或统计上报。"""
calls = []
command = _command(_candidate(), calls, commit_error=RuntimeError("commit failed"))
with pytest.raises(RuntimeError, match="commit failed"):
await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
)
assert [call[0] for call in calls] == ["get", "delete", "commit", "rollback"]
@pytest.mark.asyncio
async def test_event_failure_happens_after_commit_and_stops_report():
"""事件失败保持原有传播语义,但事务必须已经提交且不得继续上报。"""
calls = []
command = _command(_candidate(), calls, event_error=RuntimeError("event failed"))
with pytest.raises(RuntimeError, match="event failed"):
await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
)
assert [call[0] for call in calls] == ["get", "delete", "commit", "event"]
@pytest.mark.asyncio
async def test_report_failure_happens_after_commit_and_event():
"""上报失败保持原有传播语义,且不得改变已经提交和发出的事件。"""
calls = []
command = _command(_candidate(), calls, report_error=RuntimeError("report failed"))
with pytest.raises(RuntimeError, match="report failed"):
await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
)
assert [call[0] for call in calls] == ["get", "delete", "commit", "event", "report"]
@pytest.mark.asyncio
async def test_delete_stages_outbox_before_commit_and_completes_after_event():
"""订阅删除、intent 与即时事件必须按原子提交和成功收口顺序执行。"""
calls = []
command = _command(_candidate(), calls, outbox=_Outbox(calls))
assert await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
) is True
assert [call[0] for call in calls] == [
"get",
"delete",
"outbox_stage",
"commit",
"event",
"outbox_complete",
"report",
]
intent = calls[2][1]
assert intent.topic == "subscribe.deleted"
assert intent.event_key == calls[4][2]["idempotency_key"]
assert calls[5][1] == intent.event_key
@pytest.mark.asyncio
async def test_delete_outbox_stage_failure_rolls_back_business_delete():
"""订阅删除 intent 无法暂存时不得提交业务删除。"""
calls = []
command = _command(
_candidate(),
calls,
outbox=_Outbox(calls, stage_error=RuntimeError("outbox failed")),
)
with pytest.raises(RuntimeError, match="outbox failed"):
await command.execute(
7,
SubscribeDeletionActor(username="alice", is_superuser=False),
)
assert [call[0] for call in calls] == [
"get",
"delete",
"outbox_stage",
"rollback",
]
@pytest.mark.asyncio
async def test_repository_candidate_uses_loaded_orm_snapshot(monkeypatch):
"""DB 适配器只向应用层暴露权限字段和完整列快照。"""
subscribe = Subscribe(
id=7,
username="alice",
name="测试订阅",
media_source="tmdb",
media_id="123",
season=2,
)
async def async_get(_self, subscribe_id):
"""返回无需真实数据库的订阅模型。"""
assert subscribe_id == 7
return subscribe
monkeypatch.setattr(SubscribeOper, "async_get", async_get)
candidate = await SubscribeOper(object()).get_candidate(7)
assert candidate is not None
assert candidate.subscribe_id == 7
assert candidate.username == "alice"
assert candidate.event_payload["id"] == 7
assert candidate.event_payload["media_source"] == "tmdb"
assert candidate.event_payload["media_id"] == "123"
@pytest.mark.asyncio
async def test_repository_stage_delete_does_not_commit():
"""真实仓储只登记删除,提交必须由请求级 UnitOfWork 执行。"""
session = type("SessionStub", (), {})()
session.execute = AsyncMock()
session.commit = AsyncMock()
await SubscribeOper(session).stage_delete(7)
session.execute.assert_awaited_once()
session.commit.assert_not_awaited()