jest.setup.ts

// Import jest-dom extensions for Testing Library
import '@testing-library/jest-dom';

// Add any global setup needed for tests here
// For example, you might want to mock global objects or set up global variables

// Mock the window.matchMedia function which is not implemented in jsdom
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(),
  })),
});

// Mock IntersectionObserver, which is not implemented in jsdom,
// @ts-expect-error This is used for mocks in websockets only
global.IntersectionObserver = class IntersectionObserver {
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  constructor(callback: IntersectionObserverCallback) {}
  disconnect() {
    return null;
  }
  observe() {
    return null;
  }
  takeRecords() {
    return [];
  }
  unobserve() {
    return null;
  }
};

// Suppress console errors during tests
// Uncomment if needed for cleaner test output
// const originalConsoleError = console.error;
// console.error = (...args) => {
//   if (/Warning.*not wrapped in act/.test(args[0])) {
//     return;
//   }
//   originalConsoleError(...args);
// };