jest.config.ts

import type { Config } from '@jest/types';
import { pathsToModuleNameMapper } from 'ts-jest';
import { compilerOptions } from './tsconfig.aliases.json';

const config: Config.InitialOptions = {
  preset: 'ts-jest',
  testEnvironment: 'jsdom',
  roots: ['<rootDir>/src', '<rootDir>/test'],
  modulePaths: ['<rootDir>'],
  moduleDirectories: ['node_modules', 'src'],
  testMatch: ['**/__tests__/**/*.+(ts|tsx|js)', '**/?(*.)+(spec|test).+(ts|tsx|js)'],
  transform: {
    '^.+\\.(ts|tsx)$': ['ts-jest', {
      tsconfig: 'tsconfig.json',
    }],
  },
  moduleNameMapper: {
    ...pathsToModuleNameMapper(compilerOptions.paths, { prefix: '<rootDir>/' }),
    '\\.(css|less|scss|sass)$': 'identity-obj-proxy',
  },
  coverageDirectory: 'coverage',
  collectCoverageFrom: [
    'src/**/*.{js,jsx,ts,tsx}',
    '!src/**/*.d.ts',
    '!**/node_modules/**',
  ],
};

export default config;