app/concerns/liquid_droppable.rb

@@ -9,6 +9,10 @@ module LiquidDroppable

                       @object = object
              

                     end
              

                 
              

                +    def to_s
              

                +      @object.to_s
              

                +    end
              

                +
              

                     def each
              

                       (public_instance_methods - Drop.public_instance_methods).each { |name|
              

                         yield [name, __send__(name)]
              

spec/concerns/liquid_droppable_spec.rb

@@ -0,0 +1,34 @@

                +require 'spec_helper'
              

                +
              

                +describe LiquidDroppable do
              

                +  before do
              

                +    class DroppableTest
              

                +      include LiquidDroppable
              

                +
              

                +      def initialize(value)
              

                +        @value = value
              

                +      end
              

                +
              

                +      attr_reader :value
              

                +
              

                +      def to_s
              

                +        "[value:#{value}]"
              

                +      end
              

                +    end
              

                +
              

                +    class DroppableTestDrop
              

                +      def value
              

                +        @object.value
              

                +      end
              

                +    end
              

                +  end
              

                +
              

                +  describe 'test class' do
              

                +    it 'should be droppable' do
              

                +      five = DroppableTest.new(5)
              

                +      five.to_liquid.class.should == DroppableTestDrop
              

                +      Liquid::Template.parse('{{ x.value | plus:3 }}').render('x' => five).should == '8'
              

                +      Liquid::Template.parse('{{ x }}').render('x' => five).should == '[value:5]'
              

                +    end
              

                +  end
              

                +end