BAEL-4786 - DatagramChannel - review fix

core-java-modules/core-java-nio-2/src/test/java/com/baeldung/datagramchannel/DatagramChannelUnitTest.java

@@ -0,0 +1,24 @@
+package com.baeldung.datagramchannel;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.channels.DatagramChannel;
+import org.junit.jupiter.api.Test;
+
+public class DatagramChannelUnitTest {
+    
+    @Test
+    public void whenClientSendsAndServerReceivesUDPPacket_thenCorrect() throws IOException {
+        DatagramChannel server = DatagramServer.startServer();
+        
+        DatagramChannel client = DatagramClient.startClient();
+        String msg = "Hello, this is a Baeldung's DatagramChannel based UDP client!";
+        InetSocketAddress serverAddress = new InetSocketAddress("localhost", 7001);
+        DatagramClient.sendMessage(client, msg, serverAddress);
+        
+        assertEquals("Hello, this is a Baeldung's DatagramChannel based UDP client!", DatagramServer.receiveMessage(server));
+    }
+
+}