jest.config.ts

import type { Config } from 'jest'
import nextJest from 'next/jest.js'
const { pathsToModuleNameMapper } = require('ts-jest');
const { compilerOptions } = require('./tsconfig.json');

 
const createJestConfig = nextJest({
  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
  dir: './',
})
 
// Add any custom config to be passed to Jest
const config: Config = {
  coverageProvider: 'v8',
  preset: 'ts-jest',
  testEnvironment: 'jsdom',
  collectCoverage: true,
  collectCoverageFrom: [
    '**/*.{ts,tsx}',
    '!**/node_modules/**',
    '!**/vendor/**',
    '!**/analytics/**',
    '!**/app/**',
    '!jest.config.ts',
    '!next.config.js',
    '!next-i18next.config.js',
    '!tsconfig.json',
    '!jest.setup.ts'
  ],
  silent: true,
  // Add more setup options before each test is run
  // setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],
  coverageReporters: ['text', 'json','html'],
  coverageThreshold: {
    global: {
      branches: 25,
      functions: 25,
      lines: 25,
      statements: 25,
    },
  },
  moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, {
    prefix: '<rootDir>/',
  }),
}
 
// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
export default createJestConfig(config)