jest.config.js

module.exports = {
  moduleFileExtensions: ["js", "jsx", "json", "vue"],
  transform: {
    "^.+\\.vue$": "@vue/vue3-jest",
    ".+\\.(css|styl|less|sass|scss|svg|png|jpg|ttf|woff|woff2)$":
      "jest-transform-stub",
    "^.+\\.jsx?$": "babel-jest",
  },
  moduleNameMapper: {
    "^@/(.*)$": "<rootDir>/src/$1",
  },
  snapshotSerializers: ["jest-serializer-vue"],
  testMatch: [
    "**/tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)",
  ],
  testEnvironment: "jsdom",
  testEnvironmentOptions: {
    url: "http://localhost/",
    customExportConditions: ["node", "node-addons"],
  },
  collectCoverageFrom: [
    "<rootDir>/src/vuedraggable.js",
    "<rootDir>/src/util/*.js",
    "<rootDir>/src/core/*.js",
  ],
  transformIgnorePatterns: [
    "node_modules/(?!(babel-jest|jest-vue-preprocessor|vue)/)",
  ],
};