NPM错误！测试失败-无法运行测试

Question

使用Jest和Enzyme运行一些针对react js的测试，但是其中一个文件不断损坏。使用笑话和酶

我已经清除了缓存，但是我不断得到以下内容：

NPM错误！测试失败 并且工作进程意外退出！这很可能是初始化错误

这是package.json的一部分。 不太确定如何解决此问题。

scripts": {
    "start": "node scripts/start.js",
    "start-3001": "set PORT=3001&& node scripts/start.js",
    "start-3002": "set PORT=3002&& node scripts/start.js",
    "build": "node scripts/build.js",
    "test": "node scripts/test.js --env=jsdom --verbose || exit 0"
  },
  "devDependencies": {
    "enzyme-to-json": "^3.3.5",
    "jes": "^0.6.1",
    "jest": "^20.0.4",
    "jest-fetch-mock": "^2.1.2",
    "react-addons-test-utils": "^15.6.2",
    "react-dom": "^15.6.2",
    "react-test-renderer": "^15.5.4"
  },
  "jest": {
     "automock": false, 
    "collectCoverageFrom": [
      "src/**/*.{js,jsx}"
    ],
    "setupFiles": [
      "<rootDir>/config/polyfills.js"
    ],
    "testMatch": [
      "<rootDir>/src/**/__tests__/**/*.js?(x)",
      "<rootDir>/src/**/?(*.)(spec|test).js?(x)"
    ],
    "testEnvironment": "node",
    "verbose": true,
    "testURL": "http://localhost:3000",
    "transform": {
      "^.+\\.(js|jsx)$": "<rootDir>/node_modules/babel-jest",
      "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
      "^(?!.*\\.(js|jsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
    },
    "transformIgnorePatterns": [
      "[/\\\\]node_modules[/\\\\].+\\.(js|jsx)$"
    ],
    "moduleNameMapper": {
      "^react-native$": "react-native-web"
    },
    "moduleFileExtensions": [
      "web.js",
      "js",
      "json",
      "web.jsx",
      "jsx",
      "node"
    ]
  },
  "babel": {
    "presets": [
      "react-app",
      "stage-0"
    ]
  },
  "eslintConfig": {
    "extends": "react-app"
  }
}

Answer 1

删除node_modules和package-lock.json或yarn.lock文件。再次运行npm install，看看是否能解决问题。