testem.js

const report_file = process.env.BUILD_STAGINGDIRECTORY
  ? process.env.BUILD_STAGINGDIRECTORY + '/test-results/results.xml'
  : 'test-results.xml';

const CHROME_ARGS = {
  mode: 'ci',
  args: [
    // --no-sandbox is needed when running Chrome inside a container
    '--no-sandbox',
    '--disable-gpu',
    '--headless',
    '--remote-debugging-port=0',
    '--window-size=1440,900',
  ].filter(Boolean),
};

module.exports = {
  test_page: 'tests/index.html?hidepassed',
  disable_watching: true,
  launch_in_ci: ['Chrome', 'Chromium'],
  launch_in_dev: ['Chrome'],
  ignore_missing_launchers: true,
  xunit_intermediate_output: true,
  reporter: 'xunit',
  report_file,
  browser_args: {
    Chrome: CHROME_ARGS,
    Chromium: CHROME_ARGS,
  },
};