"""네거티브 캐시 CRUD 테스트 (실 lps_db)."""

import pytest_asyncio
from sqlalchemy import text

from crud.negative_cache import NegativeCache


@pytest_asyncio.fixture
async def nc(db_engine):
    async with db_engine.begin() as conn:
        await conn.execute(text("TRUNCATE search_negative"))
    return NegativeCache()


async def test_put_then_is_negative(nc):
    assert await nc.is_negative("P1") is False
    await nc.put("P1", ttl_sec=3600)
    assert await nc.is_negative("P1") is True


async def test_expired_is_not_negative(nc):
    await nc.put("P2", ttl_sec=-1)          # 이미 만료
    assert await nc.is_negative("P2") is False


async def test_upsert_refreshes_ttl(nc):
    await nc.put("P3", ttl_sec=-1)          # 만료 상태
    assert await nc.is_negative("P3") is False
    await nc.put("P3", ttl_sec=3600)        # 갱신 → 유효
    assert await nc.is_negative("P3") is True


async def test_empty_key_is_noop(nc):
    await nc.put("", ttl_sec=3600)
    assert await nc.is_negative("") is False