jest.config.js

// jest.config.js
const { pathsToModuleNameMapper } = require('ts-jest');
const { compilerOptions } = require('./tsconfig')
module.exports = {
    testPathIgnorePatterns: ['<rootDir>/.next', '<rootDir>/node_modules'],
    collectCoverageFrom: [
      '**/*.{js,jsx,ts,tsx}',
      '!**/*.d.ts',
      '!**/node_modules/**',
    ],
    moduleNameMapper: {
      // Handle CSS imports (with CSS modules)
      // https://jestjs.io/docs/webpack#mocking-css-modules
      '^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
  
      // Handle CSS imports (without CSS modules)
      '^.+\\.(css|sass|scss)$': '<rootDir>/__mocks__/styleMock.js',
  
      // Handle image imports
      // https://jestjs.io/docs/webpack#handling-static-assets
      '^.+\\.(jpg|jpeg|png|gif|webp|avif|svg)$': `<rootDir>/__mocks__/fileMock.js`,
  
      // Handle module aliases
      '^@/components/(.*)$': '<rootDir>/components/$1',
    },
    setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
    testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/.next/'],
    testEnvironment: 'jsdom',
    transform: {
      // Use babel-jest to transpile tests with the next/babel preset
      // https://jestjs.io/docs/configuration#transform-objectstring-pathtotransformer--pathtotransformer-object
      '^.+\\.(js|jsx|ts|tsx)$': ['babel-jest', { presets: ['next/babel'] }],
    },
    transformIgnorePatterns: [
      '/node_modules/',
      '^.+\\.module\\.(css|sass|scss)$',
    ],
    testEnvironment: 'jest-environment-jsdom',
  }