docker run -it --rm -w /app -v $(pwd):/app alexsuch/angular-cli:7.2.2-chromium

$ npm i
$ ng test --watch=false --browsers=ChromeHeadlessNoSandbox

browsers: ['ChromeHeadlessNoSandbox'],
customLaunchers: {
  ChromeHeadlessNoSandbox: {
    base: 'ChromeHeadless',
    flags: ['--no-sandbox'] // for running within Docker
  }
},