from __future__ import annotations

from teamlandkarte_mcp.cache.query_cache import QueryCache


def test_query_cache_hit_miss_behavior() -> None:
    cache: QueryCache[int] = QueryCache(ttl_hours=12, max_size=10)
    calls = {"n": 0}

    def fetch() -> int:
        calls["n"] += 1
        return 123

    assert cache.get_or_fetch("k", fetch) == 123
    assert cache.stats["misses"] == 1
    assert cache.stats["hits"] == 0
    assert calls["n"] == 1

    assert cache.get_or_fetch("k", fetch) == 123
    assert cache.stats["hits"] == 1
    assert calls["n"] == 1