loadSessionLogs({ sessionFile, limit: Number.POSITIVE_INFINITY }),

).resolves.toEqual([]);

});

it("keeps the latest logs when transcript timestamps are out of order", async () => {

const root = await makeSessionCostRoot("session-logs-unsorted-limit");

const sessionFile = path.join(root, "session.jsonl");

const entries = [

["2026-02-12T10:03:00.000Z", "third"],

["2026-02-12T10:01:00.000Z", "first"],

["2026-02-12T10:04:00.000Z", "fourth"],

["2026-02-12T10:02:00.000Z", "second"],

].map(([timestamp, content]) => ({

type: "message",

timestamp,

message: { role: "user", content },

}));

await fs.writeFile(

sessionFile,

entries.map((entry) => JSON.stringify(entry)).join("\n"),

"utf-8",

);

const logs = await loadSessionLogs({ sessionFile, limit: 2 });

expect(logs?.map((log) => log.content)).toEqual(["third", "fourth"]);

});

});