Function stubDeferredFetch

src/store/reconstructionStore.test.ts:437–449

()

  // Registers a controllable fetch per URL so tests can resolve/reject lazy
  // splat downloads out of order.
  function stubDeferredFetch(): Map<string, { resolve: (r: Response) => void; reject: (e: unknown) => void }> {
    const deferreds = new Map<string, { resolve: (r: Response) => void; reject: (e: unknown) => void }>();
    vi.stubGlobal(
      'fetch',
      vi.fn(
        (url: string) =>
          new Promise<Response>((resolve, reject) => {
            deferreds.set(url, { resolve, reject });
          })
      )
    );
    return deferreds;
  }

  function threeLazySources() {
    const fileA = new File(['a'], 'a.ply');