.jest.js

const libDir = process.env.LIB_DIR;

const transformIgnorePatterns = [
  '/dist/', 'node_modules\/[^/]+?\/(?!(es|node_modules)\/)', // Ignore modules without es dir
];

module.exports = {
  testURL: 'http://localhost/',
  moduleFileExtensions: [
    "js",
    "jsx",
    "json",
    "vue",
  ],
  modulePathIgnorePatterns: ['/_site/'],
  testPathIgnorePatterns: [
    '/node_modules/', 'node'
  ],
  transform: {
    ".*\\.(vue)$": "<rootDir>/node_modules/vue-jest",
    "^.+\\.(js|jsx)$": "<rootDir>/node_modules/babel-jest"
  },
  testRegex: libDir === 'dist'
    ? 'demo\\.test\\.js$'
    : '.*\\.test\\.js$',
  moduleNameMapper: {
    "^@/(.*)$": "<rootDir>/$1",
  },
  snapshotSerializers: ["<rootDir>/node_modules/jest-serializer-vue"],
  collectCoverage: process.env.COVERAGE === 'true',
  collectCoverageFrom: [
    "src/**/*.{js,jsx,vue}",
  ],
  transformIgnorePatterns
};