Implement status_code method for rack_test_driver.

lib/capybara/driver/rack_test_driver.rb

@@ -204,6 +204,10 @@ class Capybara::Driver::RackTest < Capybara::Driver::Base
   def response_headers
     response.headers
   end
+  
+  def response_code
+    response.status
+  end
 
   def submit(method, path, attributes)
     path = current_path if not path or path.empty?

lib/capybara/spec/driver.rb

@@ -133,7 +133,7 @@ end
 shared_examples_for "driver with response code support" do
   it "should make the response code available through response_code" do
     @driver.visit('/with_simple_html')
-    @driver.response_code.should == '200'
+    @driver.response_code.should == 200
   end
 end
 

lib/capybara/spec/session/response_code.rb

@@ -2,7 +2,7 @@ shared_examples_for "session with response code support" do
   describe '#response_code' do
     it "should return response codes" do
       @session.visit('/with_simple_html')     
-      @session.response_code.should == '200'
+      @session.response_code.should == 200
     end
   end
 end

spec/driver/rack_test_driver_spec.rb

@@ -13,6 +13,6 @@ describe Capybara::Driver::RackTest do
   
   it_should_behave_like "driver"
   it_should_behave_like "driver with header support"
-  it_should_behave_like "driver without response code support"
+  it_should_behave_like "driver with response code support"
   
 end

spec/session/rack_test_session_spec.rb

@@ -29,6 +29,6 @@ describe Capybara::Session do
     it_should_behave_like "session"
     it_should_behave_like "session without javascript support"
     it_should_behave_like "session with headers support"
-    it_should_behave_like "session without response code support"
+    it_should_behave_like "session with response code support"
   end
 end