Package Exports

karma-coverage-istanbul-reporter

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Readme

karma-coverage-istanbul-reporter

A karma reporter that uses the latest istanbul 1.x APIs (with full sourcemap support) to report coverage.

About

This is a reporter only and does not perform the actual instrumentation of your code. Webpack users should use the istanbul-instrumenter-loader and then use this karma reporter to do the actual reporting. See the test config for an e2e example of how to combine them.

Installation

npm install karma-coverage-istanbul-reporter --save-dev

Configuration

// karma.conf.js
module.exports = function (config) {
  
  config.set({
    plugins: ['karma-coverage-istanbul-reporter'],
    reporters: ['coverage-istanbul'],
    coverageIstanbulReporter: { // any of these options are valid: https://github.com/istanbuljs/istanbul-api/blob/47b7803fbf7ca2fb4e4a15f3813a8884891ba272/lib/config.js#L33-L38
      reports: ['html', 'lcovonly', 'text-summary'], // reports can be any that are listed here: https://github.com/istanbuljs/istanbul-reports/tree/590e6b0089f67b723a1fdf57bc7ccc080ff189d7/lib
      dir: './coverage', // base output directory
      fixWebpackSourcePaths: true // if using webpack and pre-loaders, work around webpack breaking the source path
    }
  });
  
}

Individual reporter options

Most reporters accept additional config options. You can pass these through the report-config option like so:

config.set({
  coverageIstanbulReporter: {
    reports: ['html'], // make sure to specify the report in the array here as well as in report-options
    dir: './coverage',
    'report-options': {
      html: { // all options available at: https://github.com/istanbuljs/istanbul-reports/blob/590e6b0089f67b723a1fdf57bc7ccc080ff189d7/lib/html/index.js#L135-L137
        subdir: 'html' // outputs the report in ./coverage/html
      }
    }
  }
});

List of reporters and options

Credits

License

MIT