Commit 1c71206

@@ -2,6 +2,7 @@ require 'virtus'
 
 module Scale
   module Node
+    include Enumerable
     include Virtus.module
 
     def children
@@ -12,6 +13,12 @@ module Scale
       children.push(node)
     end
 
+    def each
+      children.each do |child|
+        yield child
+      end
+    end
+
     def to_xml
       builder = Nokogiri::XML::Builder.new do |xml|
         append_to(xml)
@@ -21,7 +28,7 @@ module Scale
 
     def append_to(xml)
       xml.send(xml_tag.to_sym, xml_attributes) do
-        children.each do |node|
+        each do |node|
           node.append_to(xml)
         end
       end

@@ -12,4 +12,12 @@ describe Scale::Node do
       expect(subject.xml_attributes).to be_empty
     end
   end
+
+  describe "#add" do
+    it 'adds a child node' do
+      child = Object.new
+      subject.add(child)
+      expect(subject).to include(child)
+    end
+  end
 end