rspec wishes

gistfile1.rb

class Foo
  attr_accessor :bar

  def initialize(bar)
    self.bar = bar
  end
end


# what I do now...
describe Foo do
  let(:foo) { Foo.new('baz') }
  subject { foo }

  describe '#bar' do
    subject { foo.bar }
    it { should == 'baz' }

    describe '#size' do
      subject { foo.bar.size }
      it { should == 3 }
    end
  end
end

# what I want...
describe Foo do
  subject { Foo.new('baz') }

  method :bar do
    it { should == 'baz' }

    method :size do
      it { should == 3 }
    end
  end
end

# does this exist?  is there a better way?