diff -r 000000000000 -r 41d6c0cac8b3 test/unit/daemon/NNTPConnectionTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/unit/daemon/NNTPConnectionTest.java	Thu Oct 13 03:09:22 2011 +0200
@@ -0,0 +1,122 @@
+/*
+ *   SONEWS News Server
+ *   see AUTHORS for the list of contributors
+ *
+ *   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 <http://www.gnu.org/licenses/>.
+ */
+
+package test.unit.daemon;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.nio.channels.SocketChannel;
+import junit.framework.TestCase;
+import org.sonews.daemon.NNTPConnection;
+import org.sonews.daemon.command.ArticleCommand;
+import org.sonews.daemon.command.CapabilitiesCommand;
+import org.sonews.daemon.command.GroupCommand;
+import org.sonews.daemon.command.UnsupportedCommand;
+
+/**
+ * Unit test for class NNTPConnection.
+ * @author Christian Lins
+ * @since sonews/0.5.0
+ */
+public class NNTPConnectionTest extends TestCase
+{
+
+  public void testLineReceived()
+    throws NoSuchMethodException, IllegalAccessException, InvocationTargetException
+  {
+    NNTPConnection conn = null;
+    
+    try
+    {
+      try
+      {
+        conn = new NNTPConnection(null);
+        fail("Should have raised an IllegalArgumentException");
+      }
+      catch(IOException ex) {ex.printStackTrace();}
+    }
+    catch(IllegalArgumentException ex){}
+    
+    try
+    {
+      conn = new NNTPConnection(SocketChannel.open());
+    }
+    catch(IOException ex)
+    {
+      ex.printStackTrace();
+    }
+    
+    assertNotNull(conn);
+    
+    // Make interesting methods accessible
+    Class  clazz           = conn.getClass();
+    Method methTryReadLock = clazz.getDeclaredMethod("tryReadLock", null);
+    methTryReadLock.setAccessible(true);
+    Method methLineReceived = clazz.getDeclaredMethod("lineReceived", new byte[0].getClass());
+    methLineReceived.setAccessible(true);
+    
+    try
+    {
+      // conn.lineReceived(null);
+      methLineReceived.invoke(conn, null);
+      fail("Should have raised an IllegalArgumentException");
+    }
+    catch(IllegalArgumentException ex){}
+    
+    try
+    {
+      // conn.lineReceived(new byte[0]);
+      methLineReceived.invoke(conn, new byte[0]);
+      fail("Should have raised IllegalStateException");
+    }
+    catch(InvocationTargetException ex){}
+    
+    boolean tryReadLock = (Boolean)methTryReadLock.invoke(conn, null);
+    assertTrue(tryReadLock);
+    
+    // conn.lineReceived("MODE READER".getBytes());
+    methLineReceived.invoke(conn, "MODE READER".getBytes());
+    
+    // conn.lineReceived("sdkfsdjnfksjfdng ksdf gksjdfngk nskfng ksndfg ".getBytes());
+    methLineReceived.invoke(conn, "sdkfsdjnfksjfdng ksdf ksndfg ".getBytes());
+    
+    // conn.lineReceived(new byte[1024]); // Too long
+    methLineReceived.invoke(conn, new byte[1024]);
+    
+    Method mpcmdl = conn.getClass().getDeclaredMethod("parseCommandLine", String.class);
+    mpcmdl.setAccessible(true);
+
+    Object result = mpcmdl.invoke(conn, "");
+    assertNotNull(result);
+    assertTrue(result instanceof UnsupportedCommand);
+    
+    result = mpcmdl.invoke(conn, "aRtiCle");
+    assertNotNull(result);
+    assertTrue(result instanceof ArticleCommand);
+    
+    result = mpcmdl.invoke(conn, "capAbilItIEs");
+    assertNotNull(result);
+    assertTrue(result instanceof CapabilitiesCommand);
+    
+    result = mpcmdl.invoke(conn, "grOUp");
+    assertNotNull(result);
+    assertTrue(result instanceof GroupCommand);
+  }
+  
+}