Updating to leverage latest rack-test

lib/webrat/rack.rb

@@ -1,7 +1,5 @@
 require "rack/test"
 
-Rack::Test::DEFAULT_HOST.replace("www.example.com")
-
 module Webrat
   class RackSession
     extend Forwardable

lib/webrat/sinatra.rb

@@ -5,7 +5,7 @@ module Webrat
     def initialize(context)
       app = context.respond_to?(:app) ? context.app : Sinatra::Application
 
-      super(Rack::Test::Session.new(app))
+      super(Rack::Test::Session.new(Rack::MockSession.new(app, "www.example.com")))
     end
   end
 end

spec/integration/rack/test/webrat_rack_test.rb

@@ -6,6 +6,10 @@ class WebratRackTest < Test::Unit::TestCase
   include Webrat::Matchers
   include Webrat::HaveTagMatcher
 
+  def build_rack_mock_session
+    Rack::MockSession.new(app, "www.example.com")
+  end
+
   def test_visits_pages
      visit "/"
      click_link "there"
@@ -46,7 +50,7 @@ end
 
 class WebratRackSetupTest < Test::Unit::TestCase
   def test_usable_without_mixin
-    rack_test_session = Rack::Test::Session.new(app)
+    rack_test_session = Rack::Test::Session.new(Rack::MockSession.new(app))
     adapter = Webrat::RackSession.new(rack_test_session)
     session = Webrat::Session.new(adapter)