karma-coverage包括node_modules

Question

我有一个karma配置，用于我的单元测试和代码覆盖。我的项目目录如下所示

RootFOlder
-karma.config.js
-webpack.test.config.js
-src/
--test.ts
--components
---ButonComponent
----Buttoncomponent.spec.ts

我的karma.config在下面

// Karma configuration

module.exports = function (config) {
  config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '',


    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['jasmine'],


    // list of files / patterns to load in the browser
    files: [
      'src/test.ts',
      'src/components/**/*.component.ts',
    ],

    // list of files / patterns to exclude
    exclude: [
      'node_modules',
      './src/tsconfig.spec.json'
    ],
    plugins: [
      require('karma-jasmine'),
      require("karma-coverage"),
      require('karma-chrome-launcher'),
      require('karma-jasmine-html-reporter'),
      require('karma-webpack'),
      require('karma-sourcemap-loader'),
      require('ts-loader')
    ],


    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'src/components/**/*.ts': ['coverage'],
      'src/components/**/*.component.ts': ['webpack', 'sourcemap'],
      'src/test.ts': ['webpack', 'sourcemap'],

    },

    webpack: require('./webpack.test.config'),

    coverageReporter: {
      reporters: [
        { type: 'text', subdir: 'text' },
        { type: 'html', subdir: 'report-html' },
      ]
    },

    ...
    ...
  });
}

还有我的webpack。module.exports ={ devtool：'inline-source-map'，模式：‘开发’，目标：‘节点’，解析：{扩展名：'.ts'，'.js‘}，

  module: {
    rules: [
      {
        test: /\.ts$/,
        loaders: ['ts-loader', 'angular-router-loader', 'angular2-template-loader']
      }
     ....
     ....

    ]
  },

  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'test')
    }),
    // Removes warnings regarding Critical dependency
    new webpack.ContextReplacementPlugin(
      /\@angular(\\|\/)core(\\|\/)f?esm5/, path.join(__dirname, './src')
    )
  ],
  node: {
    console: false,
    global: true,
    process: true,
    Buffer: false,
    setImmediate: false
  }
}

问题是在我运行测试之后，我的覆盖范围涵盖了捆绑的node_modules。在MBytes中运行的文件覆盖率很高，而我的覆盖率很低。请告诉我如何将node_modules排除在我的保险范围之外？任何帮助都是非常感谢的。

Answer 1

默认情况下，您甚至不需要在exclude路径中提到node_modules。尝试删除它，看看覆盖率是否已更正？

如果不是，

尝试将以下内容添加到preprocessors：

'!node_modules/**/*.*': ['coverage']