Pry fixit adds some commands to help fix up your code when using pry for TDD.

define-it

If you've just got a NameError bceause you are missing a class, then define-it will create a new class definition in the correct file (based on the class name).

If you've just got a NoMethodError because you are missing a method, then define-it will create a stub of that method and open your text editor within it so you can implement it.

replace-it

Replace it replaces the current binding.pry line with the previous line you just typed into Pry.