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MediaCrawler/tests/test_monitor_creators.py
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feat(monitor): 博主的粉丝数,以及给作品起备注
两件都是「作品栏里把这东西认出来」的延伸:

* **账号级指标**:作品列表只会说「这条涨了多少赞」,说不了「这个人整个
  账号的粉丝在涨还是在掉」。抖音的资料接口本来就有粉丝数/总获赞/作品数,
  每轮顺手记一条快照(`monitor_creator_stat`,粒度 = 任务×博主×轮次,
  和作品指标同形)。组头显示最近一条。

  快照在「一条作品都没采到」的早退**之前**落:作品列表被风控挡住的那一轮,
  正是「粉丝还在涨、但新作品没在发现」最该被看见的时刻。

* **作品备注**:博主备注回答「这个账号是谁」,这条回答「这条我要盯着」。
  一个博主底下常常只有一两件值得盯的作品,所以不能合并成一条。键取
  (platform, note_id),跨任务共用一份。

两边都守住同一条口径:**不知道就是 null,不写成 0** —— 0 在趋势图上是一条
砸到底的线,和「还没采到」是两回事。
2026-10-10 18:09:03 +08:00

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# -*- coding: utf-8 -*-
"""作品栏里的**博主**:备注(他到底是谁)与账号级指标(他现在多大)。
按 creator_hash 分组、显示 creator_name,两样都认不出人:一个是哈希,一个是平台昵称。
备注是人自己起的名字。账号级指标则是作品列表给不了的东西 —— 作品说的是"这条涨了多少赞",
粉丝数说的是"这个人整个账号在涨还是在掉"。
"""
import httpx
import pytest
import pytest_asyncio
from api.main import app
from api.monitor import db as monitor_db
from api.monitor.models import (
MODE_CREATOR,
MonitorCreatorStat,
MonitorNote,
MonitorTask,
)
CREATOR_HASH = "hash-a"
NICKNAME = "张三"
@pytest_asyncio.fixture
async def client(tmp_path):
monitor_db.set_sqlite_path(tmp_path / "monitor.db")
await monitor_db.init_db()
transport = httpx.ASGITransport(app=app)
async with httpx.AsyncClient(transport=transport, base_url="http://test") as http_client:
yield http_client
await monitor_db.dispose_engine()
async def _seed(platform: str = "xhs", task_name: str = "任务") -> int:
"""一个任务 + 一条作品,博主固定用 CREATOR_HASH / NICKNAME。"""
async with monitor_db.get_session() as session:
task = MonitorTask(
name=task_name, platform=platform, mode=MODE_CREATOR, enabled=True,
interval_minutes=60, max_notes_count=20, enable_comments=False,
max_comments_count=50, run_timeout_seconds=3600,
notify_enabled=False, created_at=0, updated_at=0,
)
session.add(task)
await session.flush()
session.add(
MonitorNote(
task_id=task.id, note_id=f"{platform}-n1", title="作品",
note_url="", cover="", creator_hash=CREATOR_HASH,
creator_name=NICKNAME, source_kind="", published_at=None,
first_seen_run_id=1, first_seen_at=0,
last_seen_run_id=1, last_seen_at=0,
)
)
return task.id
async def _notes(client, platform: str = "xhs"):
return (await client.get("/api/monitor/notes", params={"platform": platform})).json()["notes"]
async def _set_alias(client, alias: str, platform: str = "xhs", creator_hash=CREATOR_HASH):
return await client.put(
f"/api/monitor/creators/{creator_hash}",
params={"platform": platform},
json={"alias": alias},
)
class TestCreatorAlias:
@pytest.mark.asyncio
async def test_notes_start_without_an_alias(self, client):
await _seed()
assert (await _notes(client))[0]["creator_alias"] == ""
@pytest.mark.asyncio
async def test_an_alias_comes_back_with_the_notes(self, client):
await _seed()
response = await _set_alias(client, "竞品A")
assert response.status_code == 200
note = (await _notes(client))[0]
assert note["creator_alias"] == "竞品A"
# 备注是**叠加**在昵称之上的,不是替换 —— 昵称仍然是有用的对照。
assert note["creator_name"] == NICKNAME
@pytest.mark.asyncio
async def test_an_alias_is_shared_across_tasks(self, client):
"""同一个博主出现在两个任务里,备注只该填一次。
creator_hash 对同一个 uid 是稳定的,所以键取 (platform, creator_hash) 而不是
按任务存 —— 否则每加一个任务都要重新认一遍人。
"""
await _seed(task_name="任务甲")
await _seed(task_name="任务乙")
await _set_alias(client, "竞品A")
for note in await _notes(client):
assert note["creator_alias"] == "竞品A"
@pytest.mark.asyncio
async def test_the_alias_does_not_leak_to_another_platform(self, client):
"""同一个哈希在另一个平台上是另一个(或同一个)人 —— 别串味。"""
await _seed(platform="xhs")
await _seed(platform="dy")
await _set_alias(client, "小红书那边的", platform="xhs")
assert (await _notes(client, "xhs"))[0]["creator_alias"] == "小红书那边的"
assert (await _notes(client, "dy"))[0]["creator_alias"] == ""
@pytest.mark.asyncio
async def test_an_empty_alias_clears_it(self, client):
await _seed()
await _set_alias(client, "竞品A")
await _set_alias(client, "")
assert (await _notes(client))[0]["creator_alias"] == ""
@pytest.mark.asyncio
async def test_an_alias_is_trimmed(self, client):
await _seed()
await _set_alias(client, " 竞品A ")
assert (await _notes(client))[0]["creator_alias"] == "竞品A"
async def _add_stat(
task_id: int,
run_id: int,
fans: int | None,
*,
total_favorited: int | None = 83000,
works: int | None = 42,
creator_hash: str = CREATOR_HASH,
captured_at: int = 1,
) -> None:
async with monitor_db.get_session() as session:
session.add(
MonitorCreatorStat(
task_id=task_id,
run_id=run_id,
creator_hash=creator_hash,
nickname=NICKNAME,
fans=fans,
total_favorited=total_favorited,
works_count=works,
following=7,
captured_at=captured_at,
)
)
class TestCreatorStats:
"""账号级指标跟着作品一起返回 —— 界面上是按博主归组的,为了一个组头再发一轮请求
没道理。"""
@pytest.mark.asyncio
async def test_without_snapshots_the_fields_are_null(self, client):
"""null 而不是 0:0 会显示成「粉丝 0」,而事实是"还没采到"。"""
await _seed()
note = (await _notes(client))[0]
assert note["creator_fans"] is None
assert note["creator_total_favorited"] is None
assert note["creator_works"] is None
@pytest.mark.asyncio
async def test_a_snapshot_shows_up_on_every_work_of_that_creator(self, client):
task_id = await _seed()
await _add_stat(task_id, run_id=1, fans=12000)
for note in await _notes(client):
assert note["creator_fans"] == 12000
assert note["creator_total_favorited"] == 83000
assert note["creator_works"] == 42
@pytest.mark.asyncio
async def test_the_latest_run_wins(self, client):
"""一轮一条,所以总会有好几条 —— 给界面的必须是最近那条。"""
task_id = await _seed()
await _add_stat(task_id, run_id=1, fans=12000)
await _add_stat(task_id, run_id=2, fans=12300)
assert (await _notes(client))[0]["creator_fans"] == 12300
@pytest.mark.asyncio
async def test_another_platforms_snapshot_does_not_leak(self, client):
"""两个平台上恰好同名同哈希的博主是两个人 —— 快照挂在任务上,不该串。"""
await _seed(platform="xhs")
dy_task_id = await _seed(platform="dy")
await _add_stat(dy_task_id, run_id=1, fans=999)
assert (await _notes(client, "xhs"))[0]["creator_fans"] is None
assert (await _notes(client, "dy"))[0]["creator_fans"] == 999
@pytest.mark.asyncio
async def test_an_unparsed_count_stays_null(self, client):
"""快照在,但某一项没解析出来 —— 那一项必须是 null,不能变成 0。
和上一条的区别:那条是"根本没有快照",这条是"有快照、其中一项平台没给"。
界面上两种都该是「—」。
"""
task_id = await _seed()
await _add_stat(
task_id, run_id=1, fans=None, total_favorited=None, works=None
)
note = (await _notes(client))[0]
assert note["creator_fans"] is None
assert note["creator_works"] is None
# 快照本身是有的(有采集时间),只是值不知道 —— 前端要能分开这两件事。
assert note["creator_stats_at"] is not None