Added XML::NodeSet#+ and XML::NodeSet#to_a

lib/oga/xml/node_set.rb

@@ -159,6 +159,26 @@ module Oga
         return @nodes[index]
       end
 
+      ##
+      # Converts the current set to an Array.
+      #
+      # @return [Array]
+      #
+      def to_a
+        return @nodes
+      end
+
+      ##
+      # Creates a new set based on the current and the specified set. The newly
+      # created set does not inherit ownership rules of the current set.
+      #
+      # @param [Oga::XML::NodeSet] other
+      # @return [Oga::XML::NodeSet]
+      #
+      def +(other)
+        return self.class.new(to_a + other.to_a)
+      end
+
       ##
       # Removes the current nodes from their owning set. The nodes are *not*
       # removed from the current set.

spec/oga/xml/node_set_spec.rb

@@ -185,6 +185,30 @@ describe Oga::XML::NodeSet do
     end
   end
 
+  context '#to_a' do
+    before do
+      @n1  = Oga::XML::Element.new(:name => 'a')
+      @set = described_class.new([@n1])
+    end
+
+    example 'convert a set to an Array' do
+      @set.to_a.should == [@n1]
+    end
+  end
+
+  context '#+' do
+    before do
+      @n1   = Oga::XML::Element.new(:name => 'a')
+      @n2   = Oga::XML::Element.new(:name => 'b')
+      @set1 = described_class.new([@n1])
+      @set2 = described_class.new([@n2])
+    end
+
+    example 'merge two sets together' do
+      (@set1 + @set2).to_a.should == [@n1, @n2]
+    end
+  end
+
   context '#remove' do
     before do
       owner = Oga::XML::Element.new