Add some warning about what's happening

Author: zeroSteiner

test/modules/post/test/socket_channels.rb

@@ -264,11 +264,28 @@ def test_udp_channel
     end
 
     it '[UDP] Receives data from the peer' do
+      print_status("[UDP] Monitoring 'Receives data from the peer' test...")
       client, server_client = udp_socket_pair
       data = Random.new.bytes(rand(10..100))
       server_client.send(data, 0, client.localhost, client.localport)
-      received, _ = client.recvfrom(data.length)
+      received = ''
+      remaining = 20 # seconds
+      while remaining > 0
+        chunk, elapsed_time = Rex::Stopwatch.elapsed_time do
+          chunk, _ = client.recvfrom(data.length)
+          chunk
+        end
+        received << chunk
+        remaining -= elapsed_time
+      end
       ret = received == data
+      unless ret
+        print_warning("[UDP] Receives data from the peer failed in #{20} seconds")
+        print_warning("[UDP]   expected: #{data.unpack1('H*')}")
+        if received
+          print_warning("[UDP]   received: #{received.unpack1('H*')}")
+        end
+      end
       client.close
       server_client.close
       ret