feat: 新增多格式文件上传入库与认证体系
- 新增 JWT 认证模块，支持登录/注册/用户管理 - 新增文件上传接口，支持 .txt/.md/.html/.pdf/.docx 等格式解析入库 - 新增检索结果 AI 总结功能 - 新增文本去重缓存机制 - 新增全局认证夹具简化测试 - 新增配置项与环境变量支持 - 完善文档与测试覆盖
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"""认证 API 与核心函数的单元测试（mock UserStore，不依赖真实 Redis）
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覆盖：
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- POST /auth/login：成功 / 密码错误 / 用户不存在
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- POST /auth/register：成功 / 用户已存在 / 注册关闭
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- GET /auth/me：有效 token / 无 token / 无效 token（需走真实 get_current_user）
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- require_admin：非 admin 抛 FORBIDDEN（直接测函数）
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- create_access_token + decode_token 往返一致
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- hash_password + verify_password 正确 / 错误
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UserStore 的 authenticate/create 在 FakeUserStore 中 mock，避免依赖真实 Redis。
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"""
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from datetime import UTC, datetime
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import pytest
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from fastapi.testclient import TestClient
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from app.api.response import ApiError
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from app.api.v1 import auth as auth_module
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from app.config import settings
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from app.core import auth as auth_core
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from app.core.auth import (
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ERR_BAD_CREDENTIALS,
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ERR_FORBIDDEN,
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ERR_REGISTER_DISABLED,
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ERR_TOKEN_INVALID,
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ERR_UNAUTHORIZED,
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ERR_USER_EXISTS,
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create_access_token,
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decode_token,
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get_current_user,
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hash_password,
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require_admin,
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verify_password,
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)
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from app.main import app
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from app.models.auth import AuthUser, StoredUser
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def _now() -> datetime:
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return datetime.now(UTC)
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class FakeUserStore:
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"""假 UserStore：按预置数据返回结果或抛 ApiError，记录调用
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authenticate/create 使用预置 hashed_password，不调用真实 hash_password。
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"""
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def __init__(
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self,
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user: StoredUser | None = None,
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exists: bool = False,
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create_error: ApiError | None = None,
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auth_fail: bool = False,
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) -> None:
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self.user = user
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self._exists = exists
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self.create_error = create_error
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self.auth_fail = auth_fail
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self.create_calls: list[tuple[str, str, str]] = []
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async def get(self, username: str) -> StoredUser | None:
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if self.user is not None and self.user.username == username:
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return self.user
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return None
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async def exists(self, username: str) -> bool:
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return self._exists
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async def create(self, username: str, password: str, role: str = "user") -> StoredUser:
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if self.create_error is not None:
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raise self.create_error
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user = StoredUser(
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username=username,
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role=role,
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created_at=_now(),
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hashed_password="fake-hash",
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)
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self.create_calls.append((username, password, role))
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return user
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async def authenticate(self, username: str, password: str) -> StoredUser:
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if self.auth_fail or self.user is None or self.user.username != username:
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raise ApiError(ERR_BAD_CREDENTIALS, "用户名或密码错误")
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return self.user
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class NullUserStore:
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"""恒返回 None 的空存储：用于 /auth/me 测试，让 get_current_user 降级用 JWT payload"""
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async def get(self, username: str) -> StoredUser | None:
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return None
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async def exists(self, username: str) -> bool:
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return False
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def _install_store(monkeypatch: pytest.MonkeyPatch, store: FakeUserStore) -> None:
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"""将 auth 路由模块的 get_user_store 替换为假存储"""
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monkeypatch.setattr(auth_module, "get_user_store", lambda: store)
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def _make_stored_user(username: str = "alice", role: str = "user") -> StoredUser:
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return StoredUser(username=username, role=role, created_at=_now(), hashed_password="fake-hash")
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class TestAuthLoginApi:
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"""POST /auth/login"""
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def test_login_success(self, monkeypatch: pytest.MonkeyPatch):
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user = _make_stored_user(username="alice", role="admin")
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_install_store(monkeypatch, FakeUserStore(user=user))
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client = TestClient(app)
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resp = client.post("/api/v1/auth/login", json={"username": "alice", "password": "secret123"})
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assert resp.status_code == 200
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body = resp.json()
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assert body["code"] == 0
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data = body["data"]
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assert data["access_token"]
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assert data["token_type"] == "bearer"
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assert data["expires_in"] == settings.jwt_expire_minutes * 60
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assert data["user"]["username"] == "alice"
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assert data["user"]["role"] == "admin"
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assert "created_at" in data["user"]
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def test_login_wrong_password(self, monkeypatch: pytest.MonkeyPatch):
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user = _make_stored_user(username="alice")
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# authenticate 失败（密码不匹配）
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_install_store(monkeypatch, FakeUserStore(user=user, auth_fail=True))
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client = TestClient(app)
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resp = client.post("/api/v1/auth/login", json={"username": "alice", "password": "WRONG"})
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body = resp.json()
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assert body["code"] == ERR_BAD_CREDENTIALS
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assert body["data"] is None
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def test_login_user_not_found(self, monkeypatch: pytest.MonkeyPatch):
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_install_store(monkeypatch, FakeUserStore(user=None))
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client = TestClient(app)
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resp = client.post("/api/v1/auth/login", json={"username": "nobody", "password": "whatever"})
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body = resp.json()
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assert body["code"] == ERR_BAD_CREDENTIALS
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class TestAuthRegisterApi:
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"""POST /auth/register"""
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def test_register_success(self, monkeypatch: pytest.MonkeyPatch):
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store = FakeUserStore(user=None, exists=False)
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_install_store(monkeypatch, store)
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client = TestClient(app)
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resp = client.post(
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"/api/v1/auth/register", json={"username": "newbie", "password": "passwd123"}
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)
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assert resp.status_code == 200
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body = resp.json()
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assert body["code"] == 0
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data = body["data"]
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assert data["access_token"]
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assert data["user"]["username"] == "newbie"
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assert data["user"]["role"] == "user"
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assert len(store.create_calls) == 1
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assert store.create_calls[0][0] == "newbie"
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assert store.create_calls[0][2] == "user"
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def test_register_user_exists(self, monkeypatch: pytest.MonkeyPatch):
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store = FakeUserStore(
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exists=True,
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create_error=ApiError(ERR_USER_EXISTS, "用户名已存在: newbie"),
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)
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_install_store(monkeypatch, store)
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client = TestClient(app)
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resp = client.post(
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"/api/v1/auth/register", json={"username": "newbie", "password": "passwd123"}
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)
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body = resp.json()
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assert body["code"] == ERR_USER_EXISTS
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assert body["data"] is None
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def test_register_disabled(self, monkeypatch: pytest.MonkeyPatch):
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monkeypatch.setattr(settings, "auth_register_enabled", False)
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_install_store(monkeypatch, FakeUserStore())
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client = TestClient(app)
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resp = client.post(
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"/api/v1/auth/register", json={"username": "newbie", "password": "passwd123"}
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)
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body = resp.json()
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assert body["code"] == ERR_REGISTER_DISABLED
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assert body["data"] is None
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class TestAuthMeApi:
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"""GET /auth/me：需走真实 get_current_user，测试内清除 override"""
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def test_me_with_valid_token(self, monkeypatch: pytest.MonkeyPatch):
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# 清除 override，让 get_current_user 走真实认证
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app.dependency_overrides.pop(get_current_user, None)
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# mock get_user_store 返回空存储（模拟 Redis 无该用户，降级用 JWT payload）
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monkeypatch.setattr(auth_core, "get_user_store", lambda: NullUserStore())
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token, _ = create_access_token("alice", "admin")
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client = TestClient(app)
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resp = client.get("/api/v1/auth/me", headers={"Authorization": f"Bearer {token}"})
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assert resp.status_code == 200
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body = resp.json()
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assert body["code"] == 0
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assert body["data"]["username"] == "alice"
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assert body["data"]["role"] == "admin"
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def test_me_without_token(self, monkeypatch: pytest.MonkeyPatch):
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app.dependency_overrides.pop(get_current_user, None)
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monkeypatch.setattr(auth_core, "get_user_store", lambda: NullUserStore())
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client = TestClient(app)
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resp = client.get("/api/v1/auth/me")
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body = resp.json()
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assert body["code"] == ERR_UNAUTHORIZED
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assert body["data"] is None
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def test_me_with_invalid_token(self, monkeypatch: pytest.MonkeyPatch):
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app.dependency_overrides.pop(get_current_user, None)
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monkeypatch.setattr(auth_core, "get_user_store", lambda: NullUserStore())
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client = TestClient(app)
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resp = client.get("/api/v1/auth/me", headers={"Authorization": "Bearer not-a-jwt"})
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body = resp.json()
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assert body["code"] == ERR_TOKEN_INVALID
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assert body["data"] is None
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class TestRequireAdmin:
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"""require_admin：admin 通过、非 admin 抛 FORBIDDEN（直接测函数，不经 API）"""
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async def test_admin_passes(self):
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admin = AuthUser(username="alice", role="admin", created_at=_now())
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result = await require_admin(user=admin)
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assert result.role == "admin"
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async def test_non_admin_raises_forbidden(self):
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normal = AuthUser(username="bob", role="user", created_at=_now())
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with pytest.raises(ApiError) as exc:
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await require_admin(user=normal)
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assert exc.value.code == ERR_FORBIDDEN
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class TestAuthCoreFunctions:
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"""核心函数：token 往返 / 密码哈希"""
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def test_create_and_decode_token_roundtrip(self):
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token, expires_in = create_access_token("alice", "admin")
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assert expires_in == settings.jwt_expire_minutes * 60
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payload = decode_token(token)
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assert payload["sub"] == "alice"
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assert payload["role"] == "admin"
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assert "iat" in payload and "exp" in payload
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def test_decode_invalid_token_raises(self):
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with pytest.raises(ApiError) as exc:
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decode_token("not-a-jwt")
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assert exc.value.code == ERR_TOKEN_INVALID
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def test_hash_password_not_plaintext(self):
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hashed = hash_password("my-secret")
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assert hashed != "my-secret"
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assert hashed.startswith("$2") # bcrypt 哈希前缀
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def test_verify_password_correct(self):
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hashed = hash_password("my-secret")
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assert verify_password("my-secret", hashed) is True
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def test_verify_password_wrong(self):
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hashed = hash_password("my-secret")
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assert verify_password("wrong-password", hashed) is False
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def test_verify_password_garbage_hash_returns_false(self):
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# 非法 hash 会被 bcrypt 拒绝，verify_password 捕获异常返回 False
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assert verify_password("any", "not-a-valid-hash") is False
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