import '@testing-library/jest-dom'; // Optional: configure or set up a testing framework before each test // If you delete this file, remove `setupFilesAfterEnv` from `jest.config.js` // Global test utilities can be added here global.ResizeObserver = jest.fn().mockImplementation(() => ({ observe: jest.fn(), unobserve: jest.fn(), disconnect: jest.fn(), })); // Mock IntersectionObserver global.IntersectionObserver = jest.fn().mockImplementation(() => ({ observe: jest.fn(), unobserve: jest.fn(), disconnect: jest.fn(), })); // Mock matchMedia Object.defineProperty(window, 'matchMedia', { writable: true, value: jest.fn().mockImplementation((query) => ({ matches: false, media: query, onchange: null, addListener: jest.fn(), // deprecated removeListener: jest.fn(), // deprecated addEventListener: jest.fn(), removeEventListener: jest.fn(), dispatchEvent: jest.fn(), })), });