jest.setup.js

import '@testing-library/jest-dom'

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

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

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

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

// 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 ResizeObserver
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 next/router
jest.mock('next/navigation', () => ({
  useRouter: () => ({
    push: jest.fn(),
    replace: jest.fn(),
    prefetch: jest.fn(),
    back: jest.fn(),
    forward: jest.fn(),
    refresh: jest.fn()
  }),
  useParams: () => ({}),
  usePathname: () => '',
  useSearchParams: () => new URLSearchParams()
}))

// Global test cleanup
beforeEach(() => {
  // Clear all mocks before each test
  jest.clearAllMocks()

  // Reset localStorage mock
  localStorageMock.getItem.mockClear()
  localStorageMock.setItem.mockClear()
  localStorageMock.removeItem.mockClear()
  localStorageMock.clear.mockClear()

  // Reset sessionStorage mock
  sessionStorageMock.getItem.mockClear()
  sessionStorageMock.setItem.mockClear()
  sessionStorageMock.removeItem.mockClear()
  sessionStorageMock.clear.mockClear()
})