From 795e669632b06b956cb7ea1099611e4bedd6726d Mon Sep 17 00:00:00 2001
From: Yorick Peterse <yorickpeterse@gmail.com>
Date: Mon, 15 Sep 2014 21:42:08 +0200
Subject: [PATCH] Ignore default NS when serializing elements.

When a default namespace is set (using xmlns="...") the method
XML::Element#to_xml should _not_ include the namespace prefix in the output.
---
 lib/oga/xml/element.rb       |  2 +-
 spec/oga/xml/element_spec.rb | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/oga/xml/element.rb b/lib/oga/xml/element.rb
index 2a91bcd..6126867 100644
--- a/lib/oga/xml/element.rb
+++ b/lib/oga/xml/element.rb
@@ -211,7 +211,7 @@ module Oga
       # @return [String]
       #
       def to_xml
-        ns    = namespace ? "#{namespace}:" : ''
+        ns    = namespace_name ? "#{namespace_name}:" : ''
         body  = children.map(&:to_xml).join('')
         attrs = ''
 
diff --git a/spec/oga/xml/element_spec.rb b/spec/oga/xml/element_spec.rb
index 416e4a0..6723654 100644
--- a/spec/oga/xml/element_spec.rb
+++ b/spec/oga/xml/element_spec.rb
@@ -315,6 +315,16 @@ describe Oga::XML::Element do
 
       instance.to_xml.should == '<p><!--foo--></p>'
     end
+
+    example 'generate the corresponding XML when using a default namespace' do
+      namespace = Oga::XML::Namespace.new(:name => 'xmlns', :uri => 'foo')
+      instance  = described_class.new(
+        :name       => 'foo',
+        :namespaces => {'xmlns' => namespace}
+      )
+
+      instance.to_xml.should == '<foo></foo>'
+    end
   end
 
   context '#inspect' do