karma.conf.js

// Karma Configuration
// Copyright (C) 2019 Google Inc.
// Licensed under http://www.apache.org/licenses/LICENSE-2.0 <see LICENSE file>

const devConfig = require('./webpack.config')({test: true});
const path = require('path');
const ENV = process.env;
const isCoverage = ENV.COVERAGE === 'true';

module.exports = function (config) {
  let configuration = {

    // 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/ggrc-client/js_specs/specs.js',
    ],

    // list of files to exclude
    exclude: [
    ],

    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'src/ggrc-client/js_specs/specs.js': ['webpack']
    },

    webpack: devConfig,

    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['progress'],

    junitReporter: {
      outputDir: 'test',
      useBrowserName: false,
    },

    // web server port
    port: 9876,

    // enable / disable colors in the output (reporters and logs)
    colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: ['OurChrome'],
    customLaunchers: {
      OurChrome: {
        base: 'Chrome',
        flags: ['--no-sandbox', '--headless', '--disable-gpu', '--remote-debugging-port=9222']
      }
    },
    concurrency: 1,

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false,

    client: {
      jasmine: {
        random: false,
      },
    },
  };

  if (isCoverage) {
    configuration.singleRun = true;
    configuration.reporters.push('coverage-istanbul');
    configuration.processKillTimeout = 10000;
    configuration.coverageIstanbulReporter = {
      // reports can be any that are listed here: https://github.com/istanbuljs/istanbuljs/tree/aae256fb8b9a3d19414dcf069c592e88712c32c6/packages/istanbul-reports/lib
      reports: ['html', 'text-summary'],

      // base output directory. If you include %browser% in the path it will be replaced with the karma browser name
      dir: path.join(__dirname, 'coverage'),

      // Combines coverage information from multiple browsers into one report rather than outputting a report
      // for each browser.
      combineBrowserReports: true,

      // if using webpack and pre-loaders, work around webpack breaking the source path
      fixWebpackSourcePaths: true,

      // Omit files with no statements, no functions and no branches from the report
      skipFilesWithNoCoverage: true,

      verbose: false, // output config used by istanbul for debugging
    };
  }

  config.set(configuration);
};