"""登录接口测试。"""
import pytest
from fastapi.testclient import TestClient

from app.main import app

client = TestClient(app)


def test_login_fail_wrong_password():
    r = client.post("/api/auth/login", json={"username": "admin", "password": "wrong"})
    assert r.status_code == 401


def test_login_fail_wrong_user():
    r = client.post("/api/auth/login", json={"username": "nobody", "password": "admin"})
    assert r.status_code == 401


def test_login_returns_json():
    """无 DB 时可能 401；有 DB 且 admin 存在时 200。仅断言响应为 JSON 且含 code。"""
    r = client.post("/api/auth/login", json={"username": "admin", "password": "admin"})
    assert r.headers.get("content-type", "").startswith("application/json")
    data = r.json()
    assert "code" in data
    assert "trace_id" in data