def self.app_server_instance
case Webrat.configuration.application_framework
when :sinatra
require "webrat/selenium/application_servers/sinatra"
return Webrat::Selenium::ApplicationServers::Sinatra.new
when :merb
require "webrat/selenium/application_servers/merb"
return Webrat::Selenium::ApplicationServers::Merb.new
when :rails
require "webrat/selenium/application_servers/rails"
return Webrat::Selenium::ApplicationServers::Rails.new
when :rack
require "webrat/selenium/application_servers/rack"
return Webrat::Selenium::ApplicationServers::Rack.new
when :external
require "webrat/selenium/application_servers/external"
return Webrat::Selenium::ApplicationServers::External.new
else
raise WebratError.new("Unknown Webrat application_framework: \#{Webrat.configuration.application_framework.inspect}\n\nPlease ensure you have a Webrat configuration block that specifies an application_framework\nin your test_helper.rb, spec_helper.rb, or env.rb (for Cucumber).\n\nFor example:\n\nWebrat.configure do |config|\n# ...\nconfig.application_framework = :rails\nend\n")
end
end