I've been working through the Depot application to get back into Rails
after a few years doing other things. While I was looking at some
functional tests earlier I started thinking about this:
put :update, id: @user.to_param, user: @input_attributes
why doesn't the "id: @..." part throw an exception? id: isn't a
symbol. Is this some sort of alternative method of declaring a hash?
Is it a method call?
It works, which is great, but I'd love to know why.