Ever write a trivial spec like this:
And get something totally baffling back, like this?
Backstory: Refactoring some pre-written classes to use metaprogramming to create some methods and values. I wanted specs in place before starting the metaprogramming to avoid breaking things.
In retrospect, I should have figured this out sooner. In my defense, I love the Olympics and was distracted. The constructor of the model gives it away:
A parameterized constructor, no default value: rspec couldn't instantiate the implicit subject.
Silly mistake, exacerbated by magic, hidden functionality–it's one of the greatest things about Ruby, but can occasionally lead to opaque behavior, especially during the Olympics.