jest.config.js

module.exports = {
  moduleNameMapper: {
    "^@/(.*)$": "<rootDir>/$1",
    "^~/(.*)$": "<rootDir>/$1",
    "^vue$": "vue/dist/vue.common.js",
  },
  moduleFileExtensions: ["js", "vue", "json"],

  transform: {
    "^.+\\.js$": "babel-jest",
    ".*\\.(vue)$": "vue-jest",
    ".+\\.(svg|css|styl|less|sass|scss|png|jpg|ttf|woff|woff2)$": "jest-transform-stub",
  },
  collectCoverage: true,
  collectCoverageFrom: [
    "<rootDir>/components/**/*.vue",
    "<rootDir>/pages/**/*.vue",
    "<rootDir>/store/**/*.js",
    "<rootDir>/services/**/*.js",
  ],
  // TODO: achieve branches threshold to 85%
  coverageThreshold: {
    global: {
      branches: 80,
      functions: 85,
      lines: 90,
      statements: 90,
    },
  },
  setupFiles: ["<rootDir>/jest.setup.js"],
  testEnvironment: "jsdom",
  coverageProvider: "v8",
}