"""File ledger survives a new process/instance."""

from pathlib import Path

import pytest

from verae_mcp_timestamping_server.ledger import SHA256_EMPTY, FileLedger

pytestmark = pytest.mark.anyio


async def test_stamp_survives_reload(tmp_path: Path):
    path = tmp_path / "receipts.json"
    first = FileLedger(path)
    [rec] = await first.stamp(SHA256_EMPTY, scope="local")
    second = FileLedger(path)
    report = await second.hash_report(SHA256_EMPTY)
    assert report[0].receipt_id == rec.receipt_id
    ok = await second.verify(rec.receipt_id, want_scope="local")
    assert ok.valid is True