data/frontend/src/__tests__/setup.ts

import "@testing-library/jest-dom/vitest";
import { cleanup } from "@testing-library/react";
import { afterEach } from "vitest";

// jsdom does not implement window.matchMedia -- provide a default mock
if (typeof window.matchMedia !== "function") {
  Object.defineProperty(window, "matchMedia", {
    writable: true,
    value: (query: string) => ({
      matches: false,
      media: query,
      onchange: null,
      addListener: () => {},
      removeListener: () => {},
      addEventListener: () => {},
      removeEventListener: () => {},
      dispatchEvent: () => false,
    }),
  });
}

// jsdom does not implement ResizeObserver -- provide a default mock (needed by cmdk)
if (typeof globalThis.ResizeObserver === "undefined") {
  globalThis.ResizeObserver = class ResizeObserver {
    observe() {}
    unobserve() {}
    disconnect() {}
  } as unknown as typeof globalThis.ResizeObserver;
}

// jsdom does not implement Element.scrollIntoView -- provide a noop (needed by cmdk)
if (typeof Element.prototype.scrollIntoView !== "function") {
  Element.prototype.scrollIntoView = () => {};
}

afterEach(() => {
  cleanup();
});