jest.setup.js

// jest.setup.js
require('@testing-library/jest-dom');
const { TextEncoder, TextDecoder } = require('util');

// Polyfills for Node.js test environment
global.TextEncoder = TextEncoder;
global.TextDecoder = TextDecoder;

// Mock Next.js router
jest.mock('next/navigation', () => ({
  useRouter() {
    return {
      push: jest.fn(),
      replace: jest.fn(),
      prefetch: jest.fn(),
      back: jest.fn(),
      pathname: '/',
      query: {},
      asPath: '/',
    };
  },
  usePathname() {
    return '/';
  },
  useSearchParams() {
    return new URLSearchParams();
  },
}));

// Mock iron-session
jest.mock('iron-session', () => ({
  getIronSession: jest.fn(() => ({
    userId: 'user123',
    email: 'test@example.com',
    isAuthenticated: true,
    isAdmin: false,
    save: jest.fn(),
    destroy: jest.fn(),
  })),
}));

// Mock window.matchMedia
Object.defineProperty(window, 'matchMedia', {
  writable: true,
  value: jest.fn().mockImplementation(query => ({
    matches: false,
    media: query,
    onchange: null,
    addListener: jest.fn(),
    removeListener: jest.fn(),
    addEventListener: jest.fn(),
    removeEventListener: jest.fn(),
    dispatchEvent: jest.fn(),
  })),
});

// Mock IntersectionObserver
global.IntersectionObserver = class IntersectionObserver {
  constructor() {}
  disconnect() {}
  observe() {}
  unobserve() {}
  takeRecords() {
    return [];
  }
};

// Mock ResizeObserver
global.ResizeObserver = class ResizeObserver {
  constructor() {}
  disconnect() {}
  observe() {}
  unobserve() {}
};

// Mock fetch globally
global.fetch = jest.fn();

// Clear mocks before each test
beforeEach(() => {
  jest.clearAllMocks();
});