Added XEP-199 aka. "XMPP Ping" support to smack. Fixes SMACK-388.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@13384 b35dd754-fafc-0310-a699-88a17e54d16e

test-unit/org/jivesoftware/smackx/ping/PingPongTest.java

@@ -0,0 +1,38 @@
+/**
+ * Copyright 2012 Florian Schmaus
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.ping;
+
+import static org.junit.Assert.assertEquals;
+
+import org.jivesoftware.smackx.packet.Ping;
+import org.jivesoftware.smackx.packet.Pong;
+import org.junit.Test;
+
+public class PingPongTest {
+
+    @Test
+    public void createPongfromPingTest() {
+        Ping ping = new Ping("from@sender.local/resourceFrom", "to@receiver.local/resourceTo");
+
+        // create a pong from a ping
+        Pong pong = new Pong(ping);
+
+        assertEquals(pong.getFrom(), ping.getTo());
+        assertEquals(pong.getTo(), ping.getFrom());
+        assertEquals(pong.getPacketID(), ping.getPacketID());
+    }
+
+}