hey Ruben! Working on this since 1 month and i think i have finally found something related and relevant. I followed all your steps my tests and now they are working(earlier they were not even starting). But the main agenda for which I was doing all this(to load a js file in my tests) is not worked yet. As written, I have required "miniApp" in the end before calling "window.__karma__.start();", In my tests I just console.log(miniApp.users); which is throwing me an error- miniApp is not defined. I don't know what I am doing wrong. Please help me though this! n Thanks for the great tutorial! P.S: "miniApp" is the name of my JS file and "users" is a json object in it.