import { vi } from "vitest"; // Mock window.matchMedia for jsdom environment // This needs to be set up before any React components are rendered const matchMediaMock = vi.fn().mockImplementation((query: string) => ({ matches: false, media: query, onchange: null, addListener: vi.fn(), removeListener: vi.fn(), addEventListener: vi.fn(), removeEventListener: vi.fn(), dispatchEvent: vi.fn(), })); Object.defineProperty(window, "matchMedia", { writable: true, configurable: true, value: matchMediaMock, });