karma-ng.conf.js

/* eslint-disable func-names */
/* eslint-disable global-require */
/* eslint-disable require-jsdoc */
/* eslint-disable import/no-dynamic-require */

// eslint-disable-next-line strict

const path = require('path');

const {flatten} = require('lodash');

const makeBrowsers = require('./browsers-ng');
/* eslint-disable global-require */

module.exports = function configureKarma(config) {
  config.set(makeConfig(process.env.PACKAGE));
};

module.exports.makeConfig = makeConfig;
function makeConfig(packageName, argv) {
  // In case incoming argument is ['Chrome', 'Firefox', 'Safari,ie']
  // Cleanup and return ['Chrome', 'Firefox' 'Safari', 'ie']
  argv.browsers =
    argv.browsers &&
    flatten(
      argv.browsers.map((browser) =>
        browser.includes(',') ? browser.toLowerCase().split(',') : browser.toLowerCase()
      )
    );
  argv.os =
    argv.os &&
    flatten(
      argv.os.map((os) => (os.includes(',') ? os.toLowerCase().split(',') : os.toLowerCase()))
    );

  /* eslint complexity: [0] */
  const launchers = makeBrowsers(packageName, argv);
  const integrationTestPath = path.join(
    'packages',
    packageName,
    'test',
    'integration',
    'spec',
    '**',
    '*.js'
  );
  const unitTestPath = path.join('packages', packageName, 'test', 'unit', 'spec', '**', '*.js');

  const preprocessors = {
    'packages/**': ['browserify'],
    // 'packages/**/*.ts': ['tsify', 'browserify']
  };

  const files = ['node_modules/@babel/polyfill/dist/polyfill.js'];

  if (!argv || argv.unit) {
    files.push(unitTestPath);
  }
  if (!argv || argv.integration) {
    files.push(integrationTestPath);
  }

  let cfg = {
    basePath: '.',

    browserDisconnectTimeout: 5 * 60 * 1000,

    // Allow the browser to disconnect up to 5 times. Something about
    // plugin-meetings and Firefox causes the suite to hang regularly. Restarting
    // the browser seems to fix it, so we need to allow a largish number of
    // restarts.
    browserDisconnectTolerance: 3,

    browsers: Object.keys(launchers),

    browserify: {
      debug: true,
      watch: argv && argv.karmaDebug,
      extensions: ['.ts', '.js'],
      transform: [
        [
          'babelify',
          {
            extensions: ['.ts', '.js'],
            global: true,
            ignore: ['node_modules'],
          },
        ],
        'envify',
      ],
    },

    // Restart the browser if it stops sending output for a minutes. This goes
    // hand-in-hand with the high disconnect tolerance to deal with Firefox
    // hanging on the plugin-meetings suite.
    browserNoActivityTimeout: 8 * 60 * 1000,

    // Inspired by Angular's karma config as recommended by Sauce Labs
    captureTimeout: 0,

    colors: true,

    concurrency: 4,

    customLaunchers: launchers,

    failOnEmptyTestSuite: false, // allow empty or skipped specs (like calendar) to not make karma fail

    files,

    frameworks: ['browserify', 'mocha', 'chai'],

    hostname: 'localhost',

    logLevel: process.env.KARMA_LOG_LEVEL || 'INFO', // INFO is default value

    browserConsoleLogOptions: {
      level: 'warn',
    },

    client: {
      captureConsole: true,
      mocha: {
        bail: argv.bail,
        // TODO figure out how to report retries
        retries: process.env.JENKINS || process.env.CI ? 1 : 0,
        timeout: 30000,
        grep: argv && argv.grep[0],
      },
    },

    mochaReporter: {
      // Hide the skipped tests on jenkins to more easily see which tests failed
      ignoreSkipped: true,
    },

    port: parseInt(process.env.KARMA_PORT, 10) || 9001,

    preprocessors,

    proxies: {
      '/fixtures/': `http://localhost:${process.env.FIXTURE_PORT}/`,
      '/upload': `http://localhost:${process.env.FIXTURE_PORT}/upload`,
    },

    reporters: ['mocha'],

    singleRun: !(argv && argv.karmaDebug),

    // video and screenshots add on the request of sauce labs support to help
    // diagnose test user creation timeouts
    recordVideo: true,
    recordScreenshots: true,
  };

  if (process.env.COVERAGE || process.env.CI) {
    cfg.junitReporter = {
      outputFile: `${packageName}.xml`,
      outputDir: 'reports/junit/karma',
      suite: packageName,
      useBrowserName: true,
      recordScreenshots: true,
      recordVideo: true,
    };

    cfg.reporters.push('junit');
  }

  try {
    cfg = require(`./packages/${packageName}/karma.conf.js`)(cfg);
  } catch (error) {
    // ignore
  }

  return cfg;
}