Syntactic Sugar to Mimic Assert-Arrange-Act in RSpec 2 Without Test Spies

gistfile1.rb

# sample class to mock and test against
class Thing
  def foo
    bar
  end
  
  def bar
  end
end

# NOTE: Using the implicit subject in RSpec 2
describe Thing do
  because { subject.foo }
  
  it "calls foo" do
    subject.should_have_received :bar
  end
end

# this goes in spec_helper.rb (or your choice of alternative, eg: spec/support)
# just some sugar to rename 'after' to something more appropriate to the pattern
# as well as making the expectation matchers voice past tense
module RSpec
  module Core
    module Hooks
      def because(*args, &block)
        scope, options = scope_and_options_from(*args)
        hooks[:after][scope] << AfterHook.new(options, &block)
      end
    end
  end
  module Mocks
    module Methods
      alias_method :should_have_received, :should_receive
      alias_method :should_not_have_received, :should_not_receive
    end
  end
end