Karma clear screen before running tests

It is not supported. I like this idea though. I created issue #1004 to support this.

The issue @Sylvain has created is still open, but there is a plugin karma-clear-screen-reporter which does the job. Internally it uses the magic:

console.log('\u001b[2J\u001b[0;0H');

Alternatively you can also place this at the top of your test runner code to clear the console yourself.