udpated

RakeFile

@@ -5,6 +5,6 @@ task :default => :test
 desc 'Test'
 Rake::TestTask.new do |t|
   t.libs << 'test'
-  t.pattern = 'test/*/*_test.rb'
+  t.pattern = './**/*_test.rb'
   t.verbose = true
 end

examples/hello/test.rb

@@ -2,5 +2,5 @@ $LOAD_PATH.unshift File.dirname(__FILE__) + '/../../lib/'
 require 'sinatra'
 
 get '/test' do
-  format.xml { body 'blake in xml' }
+  'test'
 end