test/helper.rb in fluentd-0.10.38 vs test/helper.rb in fluentd-0.10.39

@@ -6,11 +6,14 @@
 unless defined?(Test::Unit::AssertionFailedError)
   class Test::Unit::AssertionFailedError < StandardError
   end
 end
 
-class Test::Unit::TestCase
-  include RR::Adapters::TestUnit
+def unused_port
+  s = TCPServer.open(0)
+  port = s.addr[1]
+  s.close
+  port
 end
 
 def ipv6_enabled?
   require 'socket'