As far the library itself goes, the README is all you need to know. That's what's great. It does assume familiarity with testing in general (ie, how to design

As far the library itself goes, the README is all you need to know. That's what's great. It does assume familiarity with testing in general (ie, how to design for unit testing, how to write clear tests, etc), but you'll need that to use any testing library effectively, and that skill is orthogonal to the library itself. If you're looking for resources on that, I recommend: https://github.com/testdouble/contributing-tests/wiki/London-school-TDD https://github.com/testdouble/contributing-tests/wiki/London...