jest.config.js

module.exports = {
  moduleFileExtensions: [
    'js',
    'jsx',
    'json',
    // tell Jest to handle *.vue files
    'vue',
    'ts',
    'tsx',
  ],
  transform: {
    '.+\\.(css|styl|less|sass|scss|svg|png|jpg|ttf|woff|woff2)$':
      'jest-transform-stub',
    '^.+\\.jsx?$': 'babel-jest',
    '^.+\\.tsx?$': 'ts-jest',
  },
  transformIgnorePatterns: ['/node_modules/'],
  // support the same @ -> src alias mapping in source code
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
  },
  testEnvironment: 'jest-environment-jsdom-fifteen',
  // serializer for snapshots
  // snapshotSerializers: ['jest-serializer-vue'],
  testMatch: ['**/tests/unit/**/*.spec.[jt]s?(x)', '**/__tests__/*.[jt]s?(x)'],
  // https://github.com/facebook/jest/issues/6766
  testURL: 'http://localhost/',
  watchPlugins: [
    'jest-watch-typeahead/filename',
    'jest-watch-typeahead/testname',
  ],
  globals: {
    'ts-jest': {
      babelConfig: true,
    },
  },
}