"""元炁健康检查端点测试。"""

from __future__ import annotations

from fastapi import status
from fastapi.testclient import TestClient

from src.main import app

client = TestClient(app)


def test_healthz_returns_200() -> None:
    """健康检查端点应始终返回 200（即使在未加载模型时也返回可用状态信息）。"""
    resp = client.get("/healthz")
    assert resp.status_code == status.HTTP_200_OK

    data = resp.json()
    assert data["status"] in ("ok", "degraded", "error")
    assert "engines" in data
    assert "llm" in data["engines"]
    assert "embedding" in data["engines"]
    assert "reranker" in data["engines"]
    assert "version" in data
    assert isinstance(data["loaded_models"], list)