Fixed serializing of elements to XML.

lib/oga/xml/attribute.rb

@@ -38,6 +38,13 @@ module Oga
         return value.to_s
       end
 
+      ##
+      # @return [String]
+      #
+      def to_xml
+        return %Q(#{name}="#{value}")
+      end
+
       ##
       # @return [String]
       #

lib/oga/xml/element.rb

@@ -94,8 +94,8 @@ module Oga
         body  = children.map(&:to_xml).join('')
         attrs = ''
 
-        attributes.each do |key, value|
+        attributes.each do |attr|
-          attrs << "#{key}=#{value.inspect}"
+          attrs << attr.to_xml
         end
 
         attrs = " #{attrs}" unless attrs.empty?

spec/oga/xml/attribute_spec.rb

@@ -25,6 +25,14 @@ describe Oga::XML::Attribute do
     end
   end
 
+  context '#to_xml' do
+    example 'return a key/value pair for an XML document' do
+      attr = described_class.new(:name => 'foo', :value => 'bar')
+
+      attr.to_xml.should == 'foo="bar"'
+    end
+  end
+
   context '#inspect' do
     example 'return the inspect value' do
       obj = described_class.new(:name => 'a', :namespace => 'b', :value => 'c')

spec/oga/xml/element_spec.rb

@@ -111,7 +111,9 @@ describe Oga::XML::Element do
     example 'include the attributes if present' do
       instance = described_class.new(
         :name       => 'p',
-        :attributes => {:key => 'value'}
+        :attributes => [
+          Oga::XML::Attribute.new(:name => 'key', :value => 'value')
+        ]
       )
 
       instance.to_xml.should == '<p key="value"></p>'