How to run Jasmine tests?

I have downloaded an open source project:

https://github.com/cxw42/TabFern

I'm trying to run tests that are already wrote in:

tabfern/test

But I always get this results after running index.html in (tabfern/test/index.html): Results after running an index.html

My question is: How do I correctly run those tests? Thanks for answer :)