Rakefile in paid-1.0.1 vs Rakefile in paid-1.0.2

@@ -2,10 +2,10 @@
 require './tasks/api_test.rb'
 
 task :default => [:test]
 
 Rake::TestTask.new do |t|
-  t.pattern = './test/**/*_test.rb'
+  t.pattern = './test/**/[^_]*_test.rb'
 end
 
 task :test_api, [:api_key] do |t, args|
   api_key = args[:api_key]
   api_test = APITest.new(api_key)