Rspec 4 lack of instructions

I found that rspec 4 was especially hard for lack of instructions. It felt random but also like a relief once I reached the fifth exercise, MyHashSet. There were finally some instructions and everything felt doable again. Are the previous exercises not supposed to have instructions for some kind of teaching purpose? If so maybe that should explained. If not, then maybe there should be some instructions for the previous exercises.

A developer at a meetup told me that with Test Driven Development, the test is the question.

That made so much sense to me but I wish aA could have explained it more clearly.