vitest.setup.ts

import '@testing-library/jest-dom';

// Node 22+ ships its own `localStorage` global. It shadows jsdom's real Storage
// implementation and has none of the Storage API (getItem/setItem/clear), so any
// code that touches localStorage throws. Replace it with an in-memory Storage.
class MemoryStorage implements Storage {
  private store = new Map<string, string>();

  get length() {
    return this.store.size;
  }
  clear() {
    this.store.clear();
  }
  getItem(key: string) {
    return this.store.get(key) ?? null;
  }
  key(index: number) {
    return [...this.store.keys()][index] ?? null;
  }
  removeItem(key: string) {
    this.store.delete(key);
  }
  setItem(key: string, value: string) {
    this.store.set(key, String(value));
  }
}

Object.defineProperty(globalThis, 'localStorage', {
  value: new MemoryStorage(),
  configurable: true,
  writable: true,
});

// jsdom has no ResizeObserver; Radix (RadioGroup, etc.) calls it on mount.
class ResizeObserverStub {
  observe() {}
  unobserve() {}
  disconnect() {}
}

Object.defineProperty(globalThis, 'ResizeObserver', {
  value: ResizeObserverStub,
  configurable: true,
  writable: true,
});