import pytest
from httpx import AsyncClient, ASGITransport
from app.main import app


@pytest.mark.asyncio
async def test_tongue_diagnose_missing_file():
    """无文件上传应返回 422"""
    transport = ASGITransport(app=app)
    async with AsyncClient(transport=transport, base_url="http://test") as client:
        resp = await client.post("/api/v1/tongue/diagnose", data={"user_id": 1})
        assert resp.status_code == 422