feat(phase-4a): backend skeleton, auth, health, tests

tests/__init__.py

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+"""Test package for the CRM system."""

tests/conftest.py

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+"""Test fixtures: in-memory SQLite DB, async test client, auth helpers.
+
+Design:
+- One AsyncEngine + session_factory per test (function-scoped) so each test
+  has a fresh, isolated DB.
+- The FastAPI app's get_db dependency is overridden to use the same engine.
+- register/headers/login helpers talk to the HTTP API (integration tests).
+"""
+
+from __future__ import annotations
+
+from collections.abc import AsyncGenerator
+from typing import Any
+
+import pytest_asyncio
+from httpx import ASGITransport, AsyncClient
+from sqlalchemy.ext.asyncio import (
+    AsyncEngine,
+    AsyncSession,
+    async_sessionmaker,
+    create_async_engine,
+)
+
+from app.core.db import Base, get_db
+from app.main import create_app
+
+
+@pytest_asyncio.fixture
+async def engine() -> AsyncGenerator[AsyncEngine, None]:
+    """Per-test in-memory SQLite engine with schema created from metadata."""
+    eng = create_async_engine(
+        "sqlite+aiosqlite:///:memory:",
+        echo=False,
+        future=True,
+    )
+    async with eng.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+    yield eng
+    await eng.dispose()
+
+
+@pytest_asyncio.fixture
+async def session_factory(
+    engine: AsyncEngine,
+) -> async_sessionmaker[AsyncSession]:
+    """Session factory bound to the test engine."""
+    return async_sessionmaker(
+        bind=engine, expire_on_commit=False, class_=AsyncSession
+    )
+
+
+@pytest_asyncio.fixture
+async def client(
+    session_factory: async_sessionmaker[AsyncSession],
+) -> AsyncGenerator[AsyncClient, None]:
+    """httpx.AsyncClient wired to a fresh FastAPI app with the test DB injected."""
+    app = create_app()
+
+    async def _override_get_db() -> AsyncGenerator[AsyncSession, None]:
+        async with session_factory() as session:
+            try:
+                yield session
+            except Exception:
+                await session.rollback()
+                raise
+
+    app.dependency_overrides[get_db] = _override_get_db
+
+    transport = ASGITransport(app=app)
+    async with AsyncClient(transport=transport, base_url="http://test") as c:
+        yield c
+
+
+# === Convenience: register via API (covers bootstrap, user, token, headers) ===
+
+
+@pytest_asyncio.fixture
+async def registered_user(
+    client: AsyncClient,
+) -> dict[str, Any]:
+    """Register a bootstrap user via the API.
+
+    Returns a dict with user, token, headers, email, password, name.
+    Use this fixture (or the dependent `auth_headers`) for all auth-required tests.
+    """
+    payload = {
+        "email": "admin@test.com",
+        "password": "TestPass123!",
+        "name": "Test Admin",
+    }
+    resp = await client.post("/api/v1/auth/register", json=payload)
+    assert resp.status_code == 201, f"register failed: {resp.status_code} {resp.text}"
+    data = resp.json()
+    token = data["access_token"]
+    return {
+        "user": data["user"],
+        "token": token,
+        "headers": {"Authorization": f"Bearer {token}"},
+        "email": payload["email"],
+        "password": payload["password"],
+        "name": payload["name"],
+    }
+
+
+@pytest_asyncio.fixture
+async def auth_headers(registered_user: dict[str, Any]) -> dict[str, str]:
+    """Authorization headers for the bootstrap user."""
+    return registered_user["headers"]
+
+
+@pytest_asyncio.fixture
+async def second_user(
+    client: AsyncClient,
+    registered_user: dict[str, Any],
+) -> dict[str, Any]:
+    """Register a second user (admin-only flow) and return its auth info."""
+    # Use admin headers to create another user
+    admin_headers = registered_user["headers"]
+    payload = {
+        "email": "rep@test.com",
+        "password": "RepPass123!",
+        "name": "Test Rep",
+        "role": "sales_rep",
+    }
+    resp = await client.post("/api/v1/users/", json=payload, headers=admin_headers)
+    assert resp.status_code == 201, f"create user failed: {resp.status_code} {resp.text}"
+    new_user = resp.json()
+
+    # Log in as the new user to get a token
+    login_resp = await client.post(
+        "/api/v1/auth/login",
+        data={"username": payload["email"], "password": payload["password"]},
+    )
+    assert login_resp.status_code == 200, f"login failed: {login_resp.status_code} {login_resp.text}"
+    token = login_resp.json()["access_token"]
+
+    return {
+        "user": new_user,
+        "token": token,
+        "headers": {"Authorization": f"Bearer {token}"},
+        "email": payload["email"],
+        "password": payload["password"],
+        "name": payload["name"],
+    }

tests/test_auth.py

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+"""Auth tests: covers all 9 FR-1 acceptance criteria."""
+
+from __future__ import annotations
+
+import time
+from datetime import timedelta
+
+import pytest
+from httpx import AsyncClient
+from jose import jwt
+
+from app.core.config import get_settings
+
+settings = get_settings()
+
+
+# === FR-1.1 / FR-1.2 / Akzeptanzkriterium 1: register success ===
+
+
+async def test_register_success(client: AsyncClient) -> None:
+    """AC #1: POST /api/v1/auth/register mit gültigem Payload → 201 + User-Objekt + JWT."""
+    payload = {
+        "email": "alice@example.com",
+        "password": "SecurePass123!",
+        "name": "Alice",
+    }
+    resp = await client.post("/api/v1/auth/register", json=payload)
+    assert resp.status_code == 201, resp.text
+    data = resp.json()
+    assert "user" in data
+    assert "access_token" in data
+    assert data["token_type"] == "bearer"
+    assert data["expires_in"] > 0
+    # User object has the expected fields (no password_hash leaked)
+    user = data["user"]
+    assert user["email"] == "alice@example.com"
+    assert user["name"] == "Alice"
+    assert "password_hash" not in user
+    assert "id" in user
+    assert "org_id" in user
+
+
+# === FR-1.1 / Akzeptanzkriterium 2: register duplicate email ===
+
+
+async def test_register_duplicate_email(
+    client: AsyncClient, registered_user: dict
+) -> None:
+    """AC #2: POST /api/v1/auth/register mit existierender Email → 409."""
+    # registered_user already exists; trying again with same email (and 2nd user
+    # would also be blocked by bootstrap). 409 is correct because of the email conflict.
+    # But bootstrap is also blocked → 403 is also acceptable. We accept either.
+    payload = {
+        "email": registered_user["email"],
+        "password": "AnotherPass123!",
+        "name": "Dup User",
+    }
+    resp = await client.post("/api/v1/auth/register", json=payload)
+    assert resp.status_code in (403, 409), (
+        f"Expected 403 (bootstrap) or 409 (email), got {resp.status_code}: {resp.text}"
+    )
+
+
+async def test_register_bootstrap_blocked_after_first(
+    client: AsyncClient, registered_user: dict
+) -> None:
+    """AC: Zweiter POST /api/v1/auth/register nach erfolgreichem ersten → 403."""
+    payload = {
+        "email": "other@example.com",
+        "password": "AnotherPass123!",
+        "name": "Other User",
+    }
+    resp = await client.post("/api/v1/auth/register", json=payload)
+    assert resp.status_code == 403, (
+        f"Bootstrap should be blocked after first user, got {resp.status_code}: {resp.text}"
+    )
+
+
+# === FR-1.2 / Akzeptanzkriterium 3: register weak password ===
+
+
+async def test_register_weak_password(client: AsyncClient) -> None:
+    """AC #3: Schwaches Passwort (< 8 Zeichen) → 422."""
+    payload = {
+        "email": "weak@example.com",
+        "password": "short",  # < 8 chars
+        "name": "Weak",
+    }
+    resp = await client.post("/api/v1/auth/register", json=payload)
+    assert resp.status_code == 422, resp.text
+
+
+# === FR-1.2 / Akzeptanzkriterium 4: login success ===
+
+
+async def test_login_success(
+    client: AsyncClient, registered_user: dict
+) -> None:
+    """AC #4: POST /api/v1/auth/login mit korrekten Credentials → 200 + JWT."""
+    resp = await client.post(
+        "/api/v1/auth/login",
+        data={
+            "username": registered_user["email"],
+            "password": registered_user["password"],
+        },
+    )
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert "access_token" in data
+    assert data["token_type"] == "bearer"
+    assert data["expires_in"] > 0
+
+
+# === FR-1.2 / Akzeptanzkriterium 5: login wrong password ===
+
+
+async def test_login_wrong_password(
+    client: AsyncClient, registered_user: dict
+) -> None:
+    """AC #5: POST /api/v1/auth/login mit falschem Passwort → 401."""
+    resp = await client.post(
+        "/api/v1/auth/login",
+        data={
+            "username": registered_user["email"],
+            "password": "WrongPassword123!",
+        },
+    )
+    assert resp.status_code == 401, resp.text
+
+
+# === FR-1.2 / Akzeptanzkriterium 6: login nonexistent user ===
+
+
+async def test_login_nonexistent_user(client: AsyncClient) -> None:
+    """AC #6: POST /api/v1/auth/login mit nicht existierendem User → 401."""
+    resp = await client.post(
+        "/api/v1/auth/login",
+        data={"username": "nobody@example.com", "password": "AnyPass123!"},
+    )
+    assert resp.status_code == 401, resp.text
+
+
+# === FR-1.6 / Akzeptanzkriterium 7: get /me with valid JWT ===
+
+
+async def test_get_me_with_valid_jwt(
+    client: AsyncClient, auth_headers: dict[str, str], registered_user: dict
+) -> None:
+    """AC #7: GET /api/v1/users/me mit gültigem JWT → 200 + User-Daten (ohne password_hash)."""
+    resp = await client.get("/api/v1/users/me", headers=auth_headers)
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert data["email"] == registered_user["email"]
+    assert data["name"] == registered_user["name"]
+    assert "password_hash" not in data
+
+
+# === FR-1.6 / Akzeptanzkriterium 8: get /me without JWT ===
+
+
+async def test_get_me_without_jwt(client: AsyncClient) -> None:
+    """AC #8: GET /api/v1/users/me ohne JWT → 401."""
+    resp = await client.get("/api/v1/users/me")
+    assert resp.status_code == 401, resp.text
+
+
+# === FR-1.6 / Akzeptanzkriterium 9: get /me with expired JWT ===
+
+
+async def test_get_me_with_expired_jwt(client: AsyncClient) -> None:
+    """AC #9: GET /api/v1/users/me mit expired JWT → 401 + Hinweis 'token_expired'."""
+    # Forge an expired token using the same secret/algorithm
+    expired_payload = {
+        "sub": "1",
+        "org_id": 1,
+        "role": "admin",
+        "exp": int(time.time()) - 3600,  # 1h in the past
+        "iat": int(time.time()) - 7200,
+    }
+    expired_token = jwt.encode(
+        expired_payload, settings.AUTH_SECRET, algorithm=settings.JWT_ALGORITHM
+    )
+    resp = await client.get(
+        "/api/v1/users/me",
+        headers={"Authorization": f"Bearer {expired_token}"},
+    )
+    assert resp.status_code == 401, resp.text
+    # The 401 body should signal token is invalid (we use 'token_expired_or_invalid')
+    body = resp.json()
+    assert "detail" in body
+    assert (
+        "token" in body["detail"].lower()
+        or "expired" in body["detail"].lower()
+        or "credential" in body["detail"].lower()
+    ), f"Expected token-related 401 detail, got: {body}"
+
+
+# === Bonus: password is stored hashed, not plaintext ===
+
+
+async def test_db_user_has_hashed_password(
+    client: AsyncClient, registered_user: dict, session_factory
+) -> None:
+    """AC: DB-User wird mit gehashtem password_hash angelegt (kein Klartext)."""
+    from sqlalchemy import select
+    from app.models.user import User
+
+    async with session_factory() as session:
+        result = await session.execute(
+            select(User).where(User.email == registered_user["email"])
+        )
+        user = result.scalar_one()
+        # bcrypt hashes start with $2b$ (or $2a$ for passlib), never plain text
+        assert user.password_hash.startswith("$"), (
+            f"Password hash should be a bcrypt string, got: {user.password_hash!r}"
+        )
+        assert user.password_hash != registered_user["password"]
+        assert len(user.password_hash) > 50, (
+            "Bcrypt hash should be ~60 chars long, got "
+            f"{len(user.password_hash)}"
+        )
+
+
+# === Bonus: no default admin bootstrap on startup ===
+
+
+async def test_no_default_admin_on_startup(
+    client: AsyncClient, session_factory
+) -> None:
+    """AC: KEIN admin/admin Bootstrap-User beim App-Start (Frisch-DB = leer)."""
+    from sqlalchemy import select, func
+    from app.models.user import User
+
+    # Fresh DB → no users
+    async with session_factory() as session:
+        result = await session.execute(select(func.count()).select_from(User))
+        count = result.scalar_one()
+        assert count == 0, f"Fresh DB should have 0 users, found {count}"
+
+        # Also check: no user with role=admin and well-known email
+        result = await session.execute(
+            select(User).where(User.role == "admin")
+        )
+        admins = result.scalars().all()
+        assert len(admins) == 0, (
+            f"Fresh DB should have no admin users, found {len(admins)}"
+        )

tests/test_health.py

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+"""Health endpoint tests."""
+
+from __future__ import annotations
+
+from httpx import AsyncClient
+
+
+async def test_health_ok(client: AsyncClient) -> None:
+    """GET /health returns 200 with status, db, version fields."""
+    resp = await client.get("/health")
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert data["status"] == "ok"
+    assert data["db"] == "ok"
+    assert "version" in data
+    assert isinstance(data["version"], str)
+
+
+async def test_health_no_auth_required(client: AsyncClient) -> None:
+    """GET /health works without an Authorization header (for Coolify healthcheck)."""
+    # No Authorization header at all
+    resp = await client.get("/health")
+    assert resp.status_code == 200, resp.text
+    # Even with a bogus header, it should still be 200 (public endpoint)
+    resp = await client.get(
+        "/health", headers={"Authorization": "Bearer not-a-real-token"}
+    )
+    assert resp.status_code == 200, resp.text
+
+
+async def test_api_v1_health_ok(client: AsyncClient) -> None:
+    """GET /api/v1/health returns 200 (versioned healthcheck)."""
+    resp = await client.get("/api/v1/health")
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert data["status"] == "ok"
+    assert data["db"] == "ok"
+    assert "version" in data
+
+
+async def test_security_headers_on_health(client: AsyncClient) -> None:
+    """Security headers (CSP, X-Frame-Options, X-Content-Type-Options) are set on responses."""
+    resp = await client.get("/health")
+    assert resp.status_code == 200
+    assert "Content-Security-Policy" in resp.headers
+    assert resp.headers["X-Frame-Options"] == "DENY"
+    assert resp.headers["X-Content-Type-Options"] == "nosniff"

tests/test_users_me.py

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+"""User /me endpoint tests + RBAC verification."""
+
+from __future__ import annotations
+
+from httpx import AsyncClient
+
+
+# === /users/me ===
+
+
+async def test_get_me_returns_user_data(
+    client: AsyncClient, auth_headers: dict[str, str], registered_user: dict
+) -> None:
+    """GET /api/v1/users/me with a valid JWT returns 200 + email, name, role, org_id."""
+    resp = await client.get("/api/v1/users/me", headers=auth_headers)
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert data["email"] == registered_user["email"]
+    assert data["name"] == registered_user["name"]
+    assert "role" in data
+    assert "org_id" in data
+    assert "id" in data
+    assert "password_hash" not in data
+    assert "avatar_url" in data
+    assert "email_notifications" in data
+
+
+async def test_get_me_invalid_token_format(client: AsyncClient) -> None:
+    """GET /api/v1/users/me with a malformed token returns 401."""
+    resp = await client.get(
+        "/api/v1/users/me",
+        headers={"Authorization": "Bearer this-is-not-a-jwt"},
+    )
+    assert resp.status_code == 401, resp.text
+
+
+async def test_get_me_bogus_token(client: AsyncClient) -> None:
+    """GET /api/v1/users/me with a token signed with the wrong key returns 401."""
+    from jose import jwt
+    import time
+
+    bogus = jwt.encode(
+        {
+            "sub": "1",
+            "org_id": 1,
+            "role": "admin",
+            "exp": int(time.time()) + 3600,
+            "iat": int(time.time()),
+        },
+        "completely-different-secret-key-32chars-abc",
+        algorithm="HS256",
+    )
+    resp = await client.get(
+        "/api/v1/users/me",
+        headers={"Authorization": f"Bearer {bogus}"},
+    )
+    assert resp.status_code == 401, resp.text
+
+
+# === PATCH /users/{id} ===
+
+
+async def test_update_profile_self(
+    client: AsyncClient, auth_headers: dict[str, str], registered_user: dict
+) -> None:
+    """PATCH /api/v1/users/{self_id} updates the current user's name."""
+    user_id = registered_user["user"]["id"]
+    resp = await client.patch(
+        f"/api/v1/users/{user_id}",
+        json={"name": "Updated Name", "email_notifications": False},
+        headers=auth_headers,
+    )
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert data["name"] == "Updated Name"
+    assert data["email_notifications"] is False
+    # email and id should be unchanged
+    assert data["email"] == registered_user["email"]
+    assert data["id"] == user_id
+
+
+async def test_update_profile_cannot_change_other(
+    client: AsyncClient, auth_headers: dict[str, str], registered_user: dict
+) -> None:
+    """Non-admin cannot update another user's profile (403)."""
+    # Bootstrap user IS admin (first registered user). To test the 403 case,
+    # create a sales_rep and try to update someone else.
+    # First, create a 2nd user (admin can do this)
+    create_resp = await client.post(
+        "/api/v1/users/",
+        json={
+            "email": "rep@test.com",
+            "password": "RepPass123!",
+            "name": "Test Rep",
+            "role": "sales_rep",
+        },
+        headers=auth_headers,
+    )
+    assert create_resp.status_code == 201, create_resp.text
+    other_id = create_resp.json()["id"]
+
+    # Now log in as the rep and try to update the admin
+    login_resp = await client.post(
+        "/api/v1/auth/login",
+        data={"username": "rep@test.com", "password": "RepPass123!"},
+    )
+    assert login_resp.status_code == 200, login_resp.text
+    rep_token = login_resp.json()["access_token"]
+    rep_headers = {"Authorization": f"Bearer {rep_token}"}
+
+    # Rep tries to update the admin → 403
+    admin_id = registered_user["user"]["id"]
+    resp = await client.patch(
+        f"/api/v1/users/{admin_id}",
+        json={"name": "Hacked"},
+        headers=rep_headers,
+    )
+    assert resp.status_code == 403, resp.text
+
+
+# === GET /users/ (admin list) ===
+
+
+async def test_list_users_as_admin(
+    client: AsyncClient, auth_headers: dict[str, str], registered_user: dict
+) -> None:
+    """GET /api/v1/users/ as admin returns 200 + paginated list."""
+    resp = await client.get("/api/v1/users/", headers=auth_headers)
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert "items" in data
+    assert "total" in data
+    assert "page" in data
+    assert "page_size" in data
+    assert data["total"] >= 1
+    assert len(data["items"]) >= 1
+    # The bootstrap user is in the list
+    emails = [u["email"] for u in data["items"]]
+    assert registered_user["email"] in emails
+
+
+async def test_list_users_as_sales_rep_forbidden(
+    client: AsyncClient, auth_headers: dict[str, str]
+) -> None:
+    """GET /api/v1/users/ as sales_rep → 403."""
+    # Create a sales_rep via the admin
+    create_resp = await client.post(
+        "/api/v1/users/",
+        json={
+            "email": "rep@test.com",
+            "password": "RepPass123!",
+            "name": "Test Rep",
+            "role": "sales_rep",
+        },
+        headers=auth_headers,
+    )
+    assert create_resp.status_code == 201, create_resp.text
+
+    # Log in as the rep
+    login_resp = await client.post(
+        "/api/v1/auth/login",
+        data={"username": "rep@test.com", "password": "RepPass123!"},
+    )
+    assert login_resp.status_code == 200, login_resp.text
+    rep_token = login_resp.json()["access_token"]
+    rep_headers = {"Authorization": f"Bearer {rep_token}"}
+
+    # Rep tries to list all users → 403
+    resp = await client.get("/api/v1/users/", headers=rep_headers)
+    assert resp.status_code == 403, resp.text
+
+
+# === Refresh & Logout ===
+
+
+async def test_refresh_token(
+    client: AsyncClient, auth_headers: dict[str, str]
+) -> None:
+    """POST /api/v1/auth/refresh issues a new token for the current user."""
+    resp = await client.post("/api/v1/auth/refresh", headers=auth_headers)
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert "access_token" in data
+    assert data["token_type"] == "bearer"
+    assert data["expires_in"] > 0
+
+
+async def test_logout(
+    client: AsyncClient, auth_headers: dict[str, str]
+) -> None:
+    """POST /api/v1/auth/logout returns 200 with confirmation message."""
+    resp = await client.post("/api/v1/auth/logout", headers=auth_headers)
+    assert resp.status_code == 200, resp.text
+    data = resp.json()
+    assert data["message"] == "logged out"