import { afterEach, describe, expect, it, vi } from "vitest";
import { buildMemoryFlushPlan } from "./flush-plan.js";

describe("buildMemoryFlushPlan", () => {
  afterEach(() => {
    vi.restoreAllMocks();
  });

  it("falls back when the injected timestamp is outside Date range", () => {
    vi.spyOn(Date, "now").mockReturnValue(Date.UTC(2026, 4, 30, 12, 0, 0));

    const plan = buildMemoryFlushPlan({
      nowMs: 8_640_000_000_000_001,
    });

    expect(plan?.relativePath).toBe("memory/2026-05-30.md");
  });
});