[#122] Tests added.

Code refactored.

lionengine-core/src/main/java/com/b3dgs/lionengine/network/UtilNetwork.java

@@ -25,6 +25,7 @@
 import com.b3dgs.lionengine.Constant;
 import com.b3dgs.lionengine.LionEngineException;
 import com.b3dgs.lionengine.UtilConversion;
+import com.b3dgs.lionengine.network.client.InfoGet;
 
 /**
  * Network utility.
@@ -110,6 +111,27 @@ public static ByteBuffer getBuffer(DatagramPacket packet)
         return buffer;
     }
 
+    /**
+     * Get the server info.
+     * 
+     * @param ip The server ip.
+     * @param port The server port.
+     * @return The info data.
+     * @throws IOException If error.
+     */
+    public static ByteBuffer getInfo(String ip, int port) throws IOException
+    {
+        try (DatagramSocket socket = new DatagramSocket())
+        {
+            final ByteBuffer buffer = ByteBuffer.allocate(1);
+            buffer.put(UtilNetwork.toByte(MessageType.INFO));
+            final ByteBuffer send = UtilNetwork.createPacket(buffer);
+            socket.send(new DatagramPacket(send.array(), send.capacity(), InetAddress.getByName(ip), port));
+
+            return InfoGet.decode(socket);
+        }
+    }
+
     /**
      * Create full packet from data with header.
      * 

lionengine-core/src/test/java/com/b3dgs/lionengine/network/NetworkTypeTest.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2013-2023 Byron 3D Games Studio (www.b3dgs.com) Pierre-Alexandre ([email protected])
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.b3dgs.lionengine.network;
+
+import static com.b3dgs.lionengine.UtilAssert.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+import com.b3dgs.lionengine.UtilTests;
+
+/**
+ * Test {@link NetworkType}.
+ */
+final class NetworkTypeTest
+{
+    /**
+     * Test the enum.
+     * 
+     * @throws Exception If error.
+     */
+    @Test
+    void testEnum() throws Exception
+    {
+        UtilTests.testEnum(NetworkType.class);
+    }
+
+    /**
+     * Test from.
+     */
+    @Test
+    void testFrom()
+    {
+        assertEquals(NetworkType.SERVER, NetworkType.from("server"));
+        assertEquals(NetworkType.SERVER, NetworkType.from("SERVER"));
+
+        assertEquals(NetworkType.CLIENT, NetworkType.from("client"));
+        assertEquals(NetworkType.CLIENT, NetworkType.from("CLIENT"));
+
+        assertEquals(NetworkType.NONE, NetworkType.from(null));
+        assertEquals(NetworkType.NONE, NetworkType.from(""));
+        assertEquals(NetworkType.NONE, NetworkType.from("none"));
+        assertEquals(NetworkType.NONE, NetworkType.from("void"));
+    }
+}