nested_test.rb

context "something" do
  setup do
    # outer setup
  end
  
  should "do things" do
    assert :stuff
  end

  context "without some extras" do
    setup do
      # inner setup
    end
 
    should "do other things" do
    end
  end
end

# "something should do things" runs outer setup
# "something without some extras should do other things" runs outer and then inner setup