Delegate index and values_at from Capybara::Result

lib/capybara/result.rb

@@ -29,7 +29,8 @@ def initialize(elements, query)
       @query = query
     end
 
-    def_delegators :@result, :each, :[], :at, :size, :count, :length, :first, :last, :empty?, :inspect, :sample
+    def_delegators :@result, :each, :[], :at, :size, :count, :length,
+                   :first, :last, :values_at, :empty?, :inspect, :sample, :index
 
     def matches_count?
       Capybara::Helpers.matches_count?(@result.size, @query.options)

spec/result_spec.rb

@@ -28,6 +28,10 @@
     result.last.text == 'Delta'
   end
 
+  it 'can supports values_at method' do
+    result.values_at(0, 2).map(&:text).should == %w(Alpha Gamma)
+  end
+
   it "can return an element by its index" do
     result.at(1).text.should == 'Beta'
     result[2].text.should == 'Gamma'
@@ -52,4 +56,10 @@
   it 'can be sampled' do
     result.should include(result.sample)
   end
+
+  it 'can be indexed' do
+    result.index do |el|
+      el.text == 'Gamma'
+    end.should == 2
+  end
 end