fix Rxhp::Html#fragment - should return a Fragment, nor an Array

lib/rxhp/html.rb

@@ -16,7 +16,9 @@ module Html
     #     text 'bar'
     #   end
     def fragment x
-      Rxhp::Scope.current.children.push x
+      scope = Rxhp::Scope.current
+      scope.children.push x
+      scope
     end
     alias :frag :fragment
     alias :text :fragment

spec/html_spec.rb

@@ -13,9 +13,16 @@ def foo
           end
         end
       end
+      @klass = klass
       @result = klass.new.foo
     end
 
+    it 'creates an Rxhp::Fragment' do
+      @klass.new.instance_eval do
+        fragment 'foo'
+      end.should be_a Rxhp::Fragment
+    end
+
     it 'adds a child' do
       @result.children.should include 'foo'
     end