jest.config.js

module.exports = {
  verbose: true,
  moduleNameMapper: {
    "^@/(.*)$": "<rootDir>/src/$1",
    "^~/(.*)$": "<rootDir>/src/$1",
    "^vue$": "vue/dist/vue.common.js"
  },
  moduleFileExtensions: [
    "js",
    "json",
    // tell Jest to handle `*.vue` files
    "vue"
  ],
  transform: {
    // process `*.vue` files with `vue-jest`
    ".*\\.(vue)$": "vue-jest",
    // process js with `babel-jest`
    "^.+\\.js$": "babel-jest",
    // Stub non js file
    ".+\\.(css|styl|less|sass|scss|png|jpg|svg|ttf|woff|woff2)$":
      "jest-transform-stub"
  },
  collectCoverage: true,
  collectCoverageFrom: [
    "**/components/**/*.{js,vue}",
    "**/layouts/**/*.{js,vue}",
    "**/pages/**/*.{js,vue}",
    "!**/node_modules/**",
    "!**/coverage/**"
  ],
  coverageDirectory: "<rootDir>/test/unit/coverage",
  snapshotSerializers: ["jest-serializer-vue"],
  transformIgnorePatterns: ["node_modules/(?!vee-validate/dist/rules)"]
};