I started an Angular.js app with Yeoman's yo angular that includes Karma testing. Then, the grunt test reasonably failed because Karma can't find any browsers. (The browsers has not been set in the app's node_modules/karma config file.)
I'm doing my development via SSH into a remote machine, which I think (let me know if I'm wrong) is pointless to have Chrome, /usr/bin/chromium-browser, installed.
So is it possible to run Karma without any browsers?
Karma needs a browser to be set.
You can make use of PhantomJS instead of Chrome.
Indeed, it's more discreet than a traditional browser launch.
This question and answer is very relevant as of today (soon 2018, > angular2, @angular/cli, typescript, ...).
Here is a small update, based on what i found as useful on the net:
Say you have an angular cli generated project that has not been tempered with. Say you want to use PhantomJS to run your angular2 tests (nothing shocking).
Start by installing PhantomJS launcher for Karma in your project
npm i --save-dev karma-phantomjs-launcher Next you have to update the karma.conf.js file as follows:
First the the plugins properties:
plugins: [ require('karma-jasmine'), require('karma-phantomjs-launcher'), require('karma-jasmine-html-reporter'), require('karma-coverage-istanbul-reporter'), require('@angular/cli/plugins/karma') ], Then the browser properties
browsers: [ 'PhantomJS' ], Running the test at this point, you will probably stumble on the following error:
PhantomJS 2.1.1 (Windows 7 0.0.0) ERROR TypeError: pre,template,textarea,script,style is not iterable! at http://localhost:9876/_karma_webpack_/polyfills.bundle.js:792 Basically, that means your PhantomJS needs different polyfills. Uncomment the following lines in your src\polyfills.ts
import 'core-js/es6/symbol'; import 'core-js/es6/object'; import 'core-js/es6/function'; import 'core-js/es6/parse-int'; import 'core-js/es6/parse-float'; import 'core-js/es6/number'; import 'core-js/es6/math'; import 'core-js/es6/string'; import 'core-js/es6/date'; import 'core-js/es6/array'; import 'core-js/es6/regexp'; import 'core-js/es6/map'; import 'core-js/es6/weak-map'; import 'core-js/es6/set'; Last but not least, here are the links that helped me work this out: