gistfile1.rb

        setup :method, "#member" do
          @method = :member
        end

        setup :method, "#collection" do
          @method = :collection
        end

        setup :stem, "stem" do
          @stem = Stem.allocate
          @params = {foo: :bar, type: @method}
          mock(@stem).leaf(@params)
        end

        assert ":method" do
          @stem.send(@method, @params)
        end


# Methods to test:

    # Creates a new leaf with type member. See Leaf.
    def member(params)
      leaf(params.merge({type: :member}))
    end

    # Creates a new leaf with type collection. See Leaf.
    def collection(params)
      leaf(params.merge({type: :collection}))
    end


# Outcome:

                 extended leafs (1 test)
  Error            #member
                   member({:foo=>:bar, :type=>:member})
                   Called 0 times.
                   Expected 1 times.

  Error            #collection
                   member({:foo=>:bar, :type=>:collection})
                   Called 0 times.
                   Expected 1 times.