Function makeEntry

packages/player/src/hyperframes-player.test.ts:737–761

(
    opts: {
      currentTime?: number;
      start?: number;
      duration?: number;
      driftSamples?: number;
    } = {},
  )

  });

  function makeEntry(
    opts: {
      currentTime?: number;
      start?: number;
      duration?: number;
      driftSamples?: number;
    } = {},
  ): DriftEntry {
    // Include `pause`/`src` so `disconnectedCallback`'s teardown loop
    // (`m.el.pause(); m.el.src = ""`) doesn't blow up when the player is
    // removed at the end of the test — `_mirrorParentMediaTime` itself only
    // touches `currentTime`.
    const entry: DriftEntry = {
      el: {
        currentTime: opts.currentTime ?? 0,
        src: "",
        pause: vi.fn(),
      },
      start: opts.start ?? 0,
      duration: opts.duration ?? 100,
      driftSamples: opts.driftSamples ?? 0,
    };
    player._parentMedia.push(entry);
    return entry;
  }

  it("initializes new parent-media entries with driftSamples=0", () => {
    // Mock Audio just for this test so the audio-src bootstrap path produces