"""Verify the installed server patch without loading weights."""
import hashlib
import json
from pathlib import Path
from mlx_lm import server

manifest = json.loads((Path(__file__).parent / "validation.json").read_text())
actual = hashlib.sha256(Path(server.__file__).read_bytes()).hexdigest()
if actual != manifest["server_sha256_after"]:
    raise SystemExit("FAIL: this Python environment does not use the checked server patch")
print("PASS: installed server source matches the checked cache patch")