jest.config.js

// For a detailed explanation regarding each configuration property, visit:
// https://jestjs.io/docs/en/configuration.html
const { jest: workspaceAliases } = require('workspace-alias');

module.exports = {
  clearMocks: true,
  collectCoverage: true,
  collectCoverageFrom: [
    '<rootDir>/{components,packages}/*/src/**.[jt]s?(x)',
    '<rootDir>/{components,packages}/*/src/**/*.[jt]s?(x)',
    '!<rootDir>/{components,packages}/*/src/**/{stories,example,fixtures,test}.[jt]s?(x)',
    '!<rootDir>/packages/storybook/**',
    '!<rootDir>/packages/api-docs/**',
    '!<rootDir>/packages/example-application/**',
  ],
  coverageDirectory: './coverage/',
  coverageThreshold: {
    global: {
      branches: 90,
      functions: 90,
      lines: 95,
      statements: 95,
    },
  },
  moduleFileExtensions: ['web.js', 'js', 'json', 'web.jsx', 'jsx', 'node', 'ts', 'tsx'],
  setupFilesAfterEnv: ['<rootDir>/scripts/setupTests.ts'],
  snapshotSerializers: ['enzyme-to-json/serializer'],
  testEnvironment: 'jsdom',
  testMatch: ['**/{components,packages}/*/src/**/?(*.)test.[jt]s?(x)'],
  transform: {
    '^.+\\.[jt]sx?$': 'babel-jest',
    '.+\\.(css|styl|less|sass|scss|png|jpg|ttf|woff|woff2|mdx)$': 'jest-transform-stub',
  },
  transformIgnorePatterns: ['[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$'],
  moduleNameMapper: workspaceAliases(),
};