Added current_host method

lib/capybara/session.rb

@@ -27,8 +27,8 @@ module Capybara
   #
   class Session
     DSL_METHODS = [
-      :all, :first, :attach_file, :body, :html, :text, :check, :choose, :click_link_or_button, :click_button, :click_link, :current_url, :drag, :evaluate_script,
-      :field_labeled, :fill_in, :find, :find_button, :find_by_id, :find_field, :find_link, :has_content?, :has_css?,
+      :all, :first, :attach_file, :body, :html, :text, :check, :choose, :click_link_or_button, :click_button, :click_link, :current_url, :current_host,
+      :drag, :evaluate_script, :field_labeled, :fill_in, :find, :find_button, :find_by_id, :find_field, :find_link, :has_content?, :has_css?,
       :has_no_content?, :has_no_css?, :has_no_xpath?, :has_xpath?, :locate, :save_page, :save_and_open_page, :select, :source, :uncheck,
       :visit, :wait_until, :within, :within_fieldset, :within_table, :within_frame, :within_window, :has_link?, :has_no_link?, :has_button?,
       :has_no_button?, :has_field?, :has_no_field?, :has_checked_field?, :has_unchecked_field?, :has_no_table?, :has_table?,
@@ -107,6 +107,14 @@ module Capybara
       URI.parse(current_url).path
     end
 
+    ##
+    #
+    # @return [String] Host of the current page
+    #
+    def current_host
+      URI.parse(current_url).host
+    end
+
     ##
     #
     # @return [String] Fully qualified URL of the current page

lib/capybara/spec/session.rb

@@ -81,6 +81,7 @@ shared_examples_for "session" do
   it_should_behave_like "unselect"
   it_should_behave_like "within"
   it_should_behave_like "current_url"
+  it_should_behave_like "current_host"
 
   it "should encode complex field names, like array[][value]" do
     @session.visit('/form')

lib/capybara/spec/session/current_host_spec.rb

@@ -0,0 +1,9 @@
+shared_examples_for "current_host" do
+  describe '#current_host' do
+    it "is affected by visiting a page directly" do
+      @session.visit('http://capybara-testapp.heroku.com/')
+      @session.body.should include('Hello world')
+      @session.current_host.should == 'capybara-testapp.heroku.com'
+    end
+  end
+end