Test buffer reset

org.springframework.integration.ip/src/test/java/org/springframework/integration/ip/tcp/NioSocketWriterTests.java

@@ -22,6 +22,7 @@ import java.io.InputStream;
 import java.net.InetSocketAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.channels.SocketChannel;
 import java.util.concurrent.CountDownLatch;
@@ -93,6 +94,23 @@ public class NioSocketWriterTests {
 		writer.returnBuffer(b3);
 	}
 	
+	@Test
+	public void testBuffersClear() throws Exception {
+		NioSocketWriter writer = new NioSocketWriter(null, 2, 2048);
+		ByteBuffer b1 = writer.getBuffer();
+		b1.putInt(1);
+		assertEquals(4, b1.position());
+		b1.flip();
+		assertEquals(0, b1.position());
+		assertEquals(4, b1.limit());
+		writer.returnBuffer(b1);
+		Buffer b2 = writer.getBuffer();
+		assertEquals(b1, b2);
+		assertEquals(0, b2.position());
+		assertEquals(2048, b2.limit());
+		
+	}
+	
 	@Test
 	public void testWriteLengthHeader() throws Exception {
 		final int port = SocketUtils.findAvailableServerSocket();