Join thread in udp_server_loop_spec.rb

Author: eregon

spec/ruby/library/socket/socket/udp_server_loop_spec.rb

@@ -21,7 +21,7 @@
     it 'yields the message and a Socket::UDPSource' do
       msg, src = nil
 
-      Thread.new do
+      thread = Thread.new do
         SocketSpecs::ServerLoopPortFinder.udp_server_loop('127.0.0.1', 0) do |message, source|
           msg = message
           src = source
@@ -52,6 +52,8 @@
 
       msg.should == 'hello'
       src.should be_an_instance_of(Socket::UDPSource)
+
+      thread.join
     end
   end
 end