Added multiple select for rack-test driver

lib/capybara/driver/rack_test_driver.rb

@@ -32,7 +32,10 @@ class Capybara::Driver::RackTest < Capybara::Driver::Base
     end
 
     def select(option)
-      node.xpath(".//option[@selected]").each { |node| node.remove_attribute("selected") }
+      if node['multiple'] != 'multiple'
+        node.xpath(".//option[@selected]").each { |node| node.remove_attribute("selected") }
+      end
+
       if option_node = node.xpath(".//option[text()='#{option}']").first ||
                        node.xpath(".//option[contains(.,'#{option}')]").first
         option_node["selected"] = 'selected'
@@ -86,9 +89,16 @@ class Capybara::Driver::RackTest < Capybara::Driver::Base
         merge_param!(params, input['name'].to_s, input['value'].to_s) if input['checked']
       end
       node.xpath(".//select").map do |select|
-        option = select.xpath(".//option[@selected]").first
-        option ||= select.xpath('.//option').first
-        merge_param!(params, select['name'].to_s, (option['value'] || option.text).to_s) if option
+        if select['multiple'] == 'multiple'
+          options = select.xpath(".//option[@selected]")
+          options.each do |option|
+            merge_param!(params, select['name'].to_s, (option['value'] || option.text).to_s)
+          end
+        else
+          option = select.xpath(".//option[@selected]").first
+          option ||= select.xpath('.//option').first
+          merge_param!(params, select['name'].to_s, (option['value'] || option.text).to_s) if option
+        end
       end
       node.xpath(".//input[@type='file']").map do |input|
         unless input['value'].to_s.empty?

spec/dsl/select_spec.rb

@@ -33,5 +33,20 @@ shared_examples_for "select" do
         running { @session.select('Does not Exist', :from => 'form_locale') }.should raise_error(Capybara::OptionNotFound)
       end
     end
+
+    context "with multiple select" do
+      it "should select one option" do
+        @session.select("Ruby", :from => 'Language')
+        @session.click_button('awesome')
+        extract_results(@session)['languages'].should == ['Ruby']
+      end
+
+      it "should select multiple options" do
+        @session.select("Ruby",       :from => 'Language')
+        @session.select("Javascript", :from => 'Language')
+        @session.click_button('awesome')
+        extract_results(@session)['languages'].should include('Ruby', 'Javascript')
+      end
+    end
   end
 end

spec/views/form.erb

@@ -120,6 +120,16 @@
     <label for="form_pets_hamster">Hamster</label>
   </p>
 
+  <p>
+    <label for="form_languages">Languages</label>
+    <select name="form[languages][]" id="form_languages" multiple="multiple">
+      <option>Ruby</option>
+      <option>SQL</option>
+      <option>HTML</option>
+      <option>Javascript</option>
+    </select>
+  </p>
+
   <div style="display:none;">
     <label for="form_first_name_hidden">
       Super Secret