import { describe, expect, it, vi } from "vitest";

import { systemClock } from "../../src/adapters/platform/system-clock.ts";

describe("systemClock", () => {
  it("resolves after the requested duration", async () => {
    vi.useFakeTimers();
    const caller = new AbortController();
    const add = vi.spyOn(caller.signal, "addEventListener");
    const remove = vi.spyOn(caller.signal, "removeEventListener");
    const sleeper = systemClock.sleep(250, caller.signal);
    await vi.advanceTimersByTimeAsync(250);
    await expect(sleeper).resolves.toBeUndefined();
    expect(add).toHaveBeenCalledOnce();
    expect(remove).toHaveBeenCalledOnce();
    vi.useRealTimers();
  });
});