Hmmm, I think I'll disagree on this one.

My rationale:

1.) Those specs were an anti-pattern already in my mind. Doing 

>> should_receive

smells for me already big time, since this specs implementation, not behaviour.

>> should_not_receive

is even worse since this can easily break without anybody ever noticing.

2.) I don't see any example in this deleted spec file that would be worth reviving. After all, we have an extensive coverage of ReekCommand which now is the main actor.

3.) We already test the proper rendering of yaml in our cucumber features, which is exactly where we should test stuff like this.

What do you think?