jest.setup.js

import '@testing-library/jest-dom';

// Mock IntersectionObserver
global.IntersectionObserver = class IntersectionObserver {
  constructor() {}

  disconnect() {}

  observe() {}

  unobserve() {}
};

// Mock ResizeObserver
global.ResizeObserver = class ResizeObserver {
  constructor(cb) {
    this.cb = cb;
  }

  observe() {}

  unobserve() {}

  disconnect() {}
};

// 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(),
  })),
});

// Note: jest.mock calls should be in individual test files, not in setup files

// Suppress console errors in tests unless explicitly testing them
const originalError = console.error;
beforeAll(() => {
  console.error = (...args) => {
    if (
      typeof args[0] === 'string' &&
      args[0].includes('Warning: ReactDOM.render is no longer supported')
    ) {
      return;
    }
    originalError.call(console, ...args);
  };
});

afterAll(() => {
  console.error = originalError;
});