jest.setup.js

import '@testing-library/jest-dom'
import 'whatwg-fetch'

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

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

// Mock window.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(),
  })),
})

// Mock window.scrollTo
Object.defineProperty(window, 'scrollTo', {
  writable: true,
  value: jest.fn(),
})

// Mock sessionStorage
const localStorageMock = {
  getItem: jest.fn(),
  setItem: jest.fn(),
  removeItem: jest.fn(),
  clear: jest.fn(),
}

Object.defineProperty(window, 'sessionStorage', {
  value: localStorageMock
})

Object.defineProperty(window, 'localStorage', {
  value: localStorageMock
})

// Mock window.open for OAuth testing
Object.defineProperty(window, 'open', {
  writable: true,
  value: jest.fn(() => ({
    close: jest.fn(),
    closed: false,
  })),
})

// Mock TextEncoder and TextDecoder for Edge runtime compatibility
global.TextEncoder = class TextEncoder {
  encode(string) {
    return new Uint8Array(Buffer.from(string, 'utf8'));
  }
};

global.TextDecoder = class TextDecoder {
  decode(bytes, options = {}) {
    return Buffer.from(bytes).toString('utf8');
  }
};

// Reset all mocks before each test
beforeEach(() => {
  jest.clearAllMocks()
  localStorageMock.getItem.mockClear()
  localStorageMock.setItem.mockClear()
  localStorageMock.removeItem.mockClear()
  localStorageMock.clear.mockClear()
})