Firstly there's a Gamified test, accessible through a link. It's pretty funny and easy. No previous knowledge are required.
Secondly there's the Asynchronous Interview. You receive a link and have to record yourself while answering to several questions. You have a time to think about the reply after each question is displayed. Questions are about you and your motivations, mainly.
Thirdly I did the Synchronous Interview, remotely, where I had to talk about my past experiences and skills.