Using rspec-fire?

gistfile1.rb

# My normal approach:
require './path/to/my_class'

class OtherClass; end

describe MyClass do
  let(:my_class) { MyClass.new }
  
  describe '#add_widget' do
    it "makes a widget using OtherClass" do
      OtherClass.should_receive(:make_widget!)
    
      my_class.add_widget
    end
  end
end

# Declaring the OtherClass constant so the test runs by itself. If running in a
# suite, the original OtherClass declaration is picked up, and our one changes
# nothing. But declaring a constant will confuse rspec-fire, right?

@freelancing-god -- I forked this and wrote up how I would do it with rspec-fire with the feature added by my pull request:

https://gist.github.com/1975201

Note that the API (fire_replaced_class_double) is probably not what we'll wind up with, but the basic approach will probably stay. It'd be good to get more input into what the API should be. Please comment on the Pull Request:

xaviershay/rspec-fire#3 (comment)

/cc @xaviershay