// jsdom has no ResizeObserver. leaflet-map only uses it to call
// invalidateSize() on resize, which no test here depends on incidentally --
// without a stub, just importing the component throws.
class ResizeObserverStub implements ResizeObserver {
  observe(): void {}
  unobserve(): void {}
  disconnect(): void {}
}

globalThis.ResizeObserver ??= ResizeObserverStub;