gistfile1.rbx

module OnOptionExample
  GIVENS = {}
  
  def self.given name, &block
    GIVENS[name] = block
  end
  
  given "@value = 10" do
    @value = 10
  end
  
  given "@value = 11" do
    @value = 11
  end
  
  Spec::Example::ExampleGroupMethods::on_option(:given) do |option, example|
    example.instance_eval(&GIVENS[option])
  end

  describe "on option", :given => "@value = 10" do
    it "should run the group option" do
      @value.should == 10
    end
    
    it "should prefer the example option", :given => "@value = 11" do
      @value.should == 11
    end
  end
end