diff --git a/gclc/src/main/java/fr/bigeon/gclc/command/ExitCommand.java b/gclc/src/main/java/fr/bigeon/gclc/command/ExitCommand.java
index 8cf5932..cd14335 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/command/ExitCommand.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/command/ExitCommand.java
@@ -75,7 +75,8 @@ public class ExitCommand implements ICommand {
     }
 
     @Override
-    public void execute(final ConsoleOutput output, final ConsoleInput input, final String... args) {
+    public final void execute(final ConsoleOutput output,
+                              final ConsoleInput input, final String... args) {
         beforeExit();
         app.exit();
     }
@@ -83,18 +84,18 @@ public class ExitCommand implements ICommand {
     /* (non-Javadoc)
      * @see fr.bigeon.gclc.command.ICommand#getCommandName() */
     @Override
-    public String getCommandName() {
+    public final String getCommandName() {
         return name;
     }
 
     @Override
-    public void help(final ConsoleOutput manager,
+    public final void help(final ConsoleOutput manager,
                      final String... args) throws IOException {
         manager.println(
                 CLIPrompterMessages.getString(EXIT_MAN, (Object[]) args));
     }
     @Override
-    public String tip() {
+    public final String tip() {
         return CLIPrompterMessages.getString(EXIT);
     }
 }
\ No newline at end of file
diff --git a/gclc/src/main/java/fr/bigeon/gclc/command/ICommand.java b/gclc/src/main/java/fr/bigeon/gclc/command/ICommand.java
index faa5174..0d22f8a 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/command/ICommand.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/command/ICommand.java
@@ -60,7 +60,9 @@ public interface ICommand {
     void execute(ConsoleOutput out, ConsoleInput in,
                  String... args) throws CommandRunException;
 
-    /** @return the command's name */
+    /** Get teh command name.
+     * 
+     * @return the command's name */
     String getCommandName();
 
     /** This prints the help associated to this command.
@@ -71,7 +73,7 @@ public interface ICommand {
     void help(ConsoleOutput output, String... args) throws IOException;
 
     /** Get a tip (brief helping message) for the command.
-     * 
+     *
      * @return a tip on the command */
     String tip();
 
diff --git a/gclc/src/main/java/fr/bigeon/gclc/command/SubedCommand.java b/gclc/src/main/java/fr/bigeon/gclc/command/SubedCommand.java
index 014fc64..299fcc5 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/command/SubedCommand.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/command/SubedCommand.java
@@ -61,7 +61,7 @@ public final class SubedCommand extends CommandProvider implements ICommand {
     private final ICommand noArgCommand;
     /** A tip on this command. */
     private final String tip;
-    /** The name of the command */
+    /** The name of the command. */
     private final String name;
 
     /** Create the command that defines sub commands.
diff --git a/gclc/src/main/java/fr/bigeon/gclc/exception/CommandRunException.java b/gclc/src/main/java/fr/bigeon/gclc/exception/CommandRunException.java
index 84c6a81..59dcec9 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/exception/CommandRunException.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/exception/CommandRunException.java
@@ -51,7 +51,7 @@ public final class CommandRunException extends Exception {
     /** The type of run exception. */
     private final CommandRunExceptionType type;
     /** The command that caused the error. */
-    private final ICommand source;
+    private transient ICommand source;
 
     /** Create the exception.
      *
diff --git a/gclc/src/main/java/fr/bigeon/gclc/exception/package-info.java b/gclc/src/main/java/fr/bigeon/gclc/exception/package-info.java
index d94c97d..135c428 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/exception/package-info.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/exception/package-info.java
@@ -1,3 +1,37 @@
+/*
+ * Copyright Bigeon Emmanuel (2014)
+ *
+ * emmanuel@bigeon.fr
+ *
+ * This software is a computer program whose purpose is to
+ * provide a generic framework for console applications.
+ *
+ * This software is governed by the CeCILL license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ *
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ *
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ *
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
 /**
  * gclc:fr.bigeon.gclc.exception.package-info.java
  * Created on: Nov 13, 2017
diff --git a/gclc/src/main/java/fr/bigeon/gclc/i18n/package-info.java b/gclc/src/main/java/fr/bigeon/gclc/i18n/package-info.java
index f883a39..805e079 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/i18n/package-info.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/i18n/package-info.java
@@ -1,3 +1,37 @@
+/*
+ * Copyright Bigeon Emmanuel (2014)
+ *
+ * emmanuel@bigeon.fr
+ *
+ * This software is a computer program whose purpose is to
+ * provide a generic framework for console applications.
+ *
+ * This software is governed by the CeCILL license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ *
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ *
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ *
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
 /**
  * gclc:fr.bigeon.gclc.i18n.package-info.java
  * Created on: Nov 13, 2017
diff --git a/gclc/src/main/java/fr/bigeon/gclc/manager/ReadingRunnable.java b/gclc/src/main/java/fr/bigeon/gclc/manager/ReadingRunnable.java
index 06aa342..7fbfba9 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/manager/ReadingRunnable.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/manager/ReadingRunnable.java
@@ -128,14 +128,13 @@ public final class ReadingRunnable implements Runnable {
     private final BufferedReader reader;
     /** the state of this runnable. */
     private boolean running = true;
-
     /** Synchro object. */
     private final Object lock = new Object();
     /** The waiting status for a message. */
     private boolean waiting;
     /** The blocker for a given message. */
     private final Map<String, Object> messageBlocker = new HashMap<>();
-    /** The lock */
+    /** The lock. */
     private final Object messageBlockerLock = new Object();
     /** The message being delivered. */
     private String delivering;
@@ -162,6 +161,23 @@ public final class ReadingRunnable implements Runnable {
         return res;
     }
 
+    /** do wait for a message.
+     * <p>This method should only be called inside a loop.
+     * @param timeout the timeout of the wait.
+     * @throws IOException if the runnable was stopped and no essage was found.
+     */
+    private void doWaitMessage(final long timeout) throws IOException {
+        try {
+            lock.wait(timeout);
+        } catch (final InterruptedException e) {
+            LOGGER.log(Level.SEVERE, THREAD_INTERRUPTION_EXCEPTION, e);
+            Thread.currentThread().interrupt();
+        }
+        if (messages.isEmpty() && !running) {
+            throw new IOException(CLOSED_PIPE);
+        }
+    }
+
     /** Get the next message.
      *
      * @return the next read message
@@ -172,17 +188,7 @@ public final class ReadingRunnable implements Runnable {
                 throw new IOException(CLOSED_PIPE);
             }
             waiting = true;
-            while (messages.isEmpty()) {
-                try {
-                    lock.wait(TIMEOUT);
-                } catch (final InterruptedException e) {
-                    LOGGER.log(Level.SEVERE, THREAD_INTERRUPTION_EXCEPTION, e);
-                    Thread.currentThread().interrupt();
-                }
-                if (messages.isEmpty() && !running) {
-                    throw new IOException(CLOSED_PIPE);
-                }
-            }
+            waitMessage(TIMEOUT);
             LOGGER.finest("Polled: " + messages.peek()); //$NON-NLS-1$
             waiting = false;
             notifyMessage(messages.peek());
@@ -201,15 +207,7 @@ public final class ReadingRunnable implements Runnable {
                 throw new IOException(CLOSED_PIPE);
             }
             waiting = true;
-            try {
-                lock.wait(timeout);
-            } catch (final InterruptedException e) {
-                LOGGER.log(Level.SEVERE, THREAD_INTERRUPTION_EXCEPTION, e);
-                Thread.currentThread().interrupt();
-            }
-            if (messages.isEmpty() && !running) {
-                throw new IOException(CLOSED_PIPE);
-            }
+            doWaitMessage(timeout);
             waiting = false;
             if (messages.isEmpty()) {
                 return null;
@@ -335,11 +333,22 @@ public final class ReadingRunnable implements Runnable {
     }
 
     /** Set the running status for this reading runnable.
-     * 
+     *
      * @param running the running to set */
     public void setRunning(final boolean running) {
         synchronized (lock) {
             this.running = running;
         }
     }
+
+    /** Wait for the next message to be integratted.
+     *
+     * @param timeout the timeout to wait
+     * @throws IOException if the next message was not delivered and the
+     *             runnable stopped. */
+    private void waitMessage(final long timeout) throws IOException {
+        while (messages.isEmpty()) {
+            doWaitMessage(timeout);
+        }
+    }
 }
diff --git a/gclc/src/main/java/fr/bigeon/gclc/manager/SinkOutput.java b/gclc/src/main/java/fr/bigeon/gclc/manager/SinkOutput.java
index 70a6d5a..d03f643 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/manager/SinkOutput.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/manager/SinkOutput.java
@@ -38,8 +38,6 @@
  */
 package fr.bigeon.gclc.manager;
 
-import java.io.IOException;
-
 /** A console output that absorbs every message.
  *
  * @author Emmanuel Bigeon */
@@ -55,7 +53,7 @@ public final class SinkOutput implements ConsoleOutput {
     /* (non-Javadoc)
      * @see fr.bigeon.gclc.manager.ConsoleOutput#close() */
     @Override
-    public void close() throws IOException {
+    public void close() {
         //
     }
 
@@ -69,14 +67,14 @@ public final class SinkOutput implements ConsoleOutput {
     /* (non-Javadoc)
      * @see fr.bigeon.gclc.manager.ConsoleOutput#print(java.lang.String) */
     @Override
-    public void print(final String text) throws IOException {
+    public void print(final String text) {
         //
     }
 
     /* (non-Javadoc)
      * @see fr.bigeon.gclc.manager.ConsoleOutput#println() */
     @Override
-    public void println() throws IOException {
+    public void println() {
         //
     }
 
@@ -84,7 +82,7 @@ public final class SinkOutput implements ConsoleOutput {
      * @see fr.bigeon.gclc.manager.ConsoleOutput#println(java.lang.String)
      */
     @Override
-    public void println(final String message) throws IOException {
+    public void println(final String message) {
         //
     }
 
diff --git a/gclc/src/main/java/fr/bigeon/gclc/manager/WritingRunnable.java b/gclc/src/main/java/fr/bigeon/gclc/manager/WritingRunnable.java
index 9ba789a..34107db 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/manager/WritingRunnable.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/manager/WritingRunnable.java
@@ -85,7 +85,7 @@ public final class WritingRunnable implements Runnable {
      *
      * @param message the message
      * @throws IOException if the pipe is closed */
-    public synchronized void addMessage(final String message) throws IOException {
+    public void addMessage(final String message) throws IOException {
         synchronized (lock) {
             if (!running) {
                 throw new IOException("Closed pipe"); //$NON-NLS-1$
@@ -124,7 +124,7 @@ public final class WritingRunnable implements Runnable {
     /** Set the running status.
      *
      * @param running the running to set */
-    public synchronized void setRunning(final boolean running) {
+    public void setRunning(final boolean running) {
         synchronized (lock) {
             this.running = running;
         }
diff --git a/gclc/src/main/java/fr/bigeon/gclc/manager/package-info.java b/gclc/src/main/java/fr/bigeon/gclc/manager/package-info.java
index efefc72..35a359d 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/manager/package-info.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/manager/package-info.java
@@ -1,3 +1,37 @@
+/*
+ * Copyright Bigeon Emmanuel (2014)
+ *
+ * emmanuel@bigeon.fr
+ *
+ * This software is a computer program whose purpose is to
+ * provide a generic framework for console applications.
+ *
+ * This software is governed by the CeCILL license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ *
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ *
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ *
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
 /**
  * gclc:fr.bigeon.gclc.manager.package-info.java
  * Created on: Nov 13, 2017
diff --git a/gclc/src/main/java/fr/bigeon/gclc/tools/package-info.java b/gclc/src/main/java/fr/bigeon/gclc/tools/package-info.java
index 2d866a8..1c0d5ba 100644
--- a/gclc/src/main/java/fr/bigeon/gclc/tools/package-info.java
+++ b/gclc/src/main/java/fr/bigeon/gclc/tools/package-info.java
@@ -1,3 +1,37 @@
+/*
+ * Copyright Bigeon Emmanuel (2014)
+ *
+ * emmanuel@bigeon.fr
+ *
+ * This software is a computer program whose purpose is to
+ * provide a generic framework for console applications.
+ *
+ * This software is governed by the CeCILL license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ *
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ *
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ *
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
 /**
  * gclc:fr.bigeon.gclc.tools.package-info.java
  * Created on: Nov 13, 2017
diff --git a/gclc/src/test/java/fr/bigeon/gclc/command/CommandTest.java b/gclc/src/test/java/fr/bigeon/gclc/command/CommandTest.java
index 299ddb7..3ad8b50 100644
--- a/gclc/src/test/java/fr/bigeon/gclc/command/CommandTest.java
+++ b/gclc/src/test/java/fr/bigeon/gclc/command/CommandTest.java
@@ -38,6 +38,10 @@
  */
 package fr.bigeon.gclc.command;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
 import java.io.IOException;
 
 import org.junit.Test;
@@ -78,6 +82,21 @@ public class CommandTest {
             };
             cmd.help(test);
 
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // details
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            assertFalse("Only 6 line should be printed", test.available());
+
             cmd = new Command("name") {
 
                 @Override
@@ -98,6 +117,20 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // details
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            assertFalse("Only 6 line should be printed", test.available());
 
             cmd = new Command("name") {
 
@@ -126,6 +159,20 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // details
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            assertFalse("Only 6 line should be printed", test.available());
 
             cmd = new Command("name") {
 
@@ -154,6 +201,20 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // details
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            assertFalse("Only 6 line should be printed", test.available());
 
             cmd = new Command("name") {
 
@@ -177,6 +238,20 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // details
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            assertFalse("Only 6 line should be printed", test.available());
 
             cmd = new Command("name") {
 
@@ -200,6 +275,24 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // pattern
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // details
+            assertEquals("Unexpected detail", "details", test.readNextLine());
+            assertFalse("Only 6 line should be printed", test.available());
+
             cmd = new Command("name") {
 
                 @Override
@@ -222,6 +315,22 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // pattern
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // details
+            assertEquals("Unexpected detail", "details", test.readNextLine());
+            assertFalse("Only 6 line should be printed", test.available());
 
             cmd = new Command("name") {
 
@@ -245,6 +354,22 @@ public class CommandTest {
                 }
             };
             cmd.help(test);
+            // name
+            assertEquals("First line should be command name", "name",
+                    test.readNextLine());
+            // tip
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            // Usage
+            test.readNextLine();
+            // pattern
+            test.readNextLine();
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            //
+            assertTrue("Section line is empty", test.readNextLine().isEmpty());
+            assertFalse("Only 6 line should be printed", test.available());
 
         }
     }
diff --git a/gclc/src/test/java/fr/bigeon/gclc/command/HelpExecutorTest.java b/gclc/src/test/java/fr/bigeon/gclc/command/HelpExecutorTest.java
index 04aac02..e504938 100644
--- a/gclc/src/test/java/fr/bigeon/gclc/command/HelpExecutorTest.java
+++ b/gclc/src/test/java/fr/bigeon/gclc/command/HelpExecutorTest.java
@@ -38,6 +38,7 @@
  */
 package fr.bigeon.gclc.command;
 
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.fail;
 
 import java.io.IOException;
@@ -95,25 +96,15 @@ public class HelpExecutorTest {
         }
     }
 
-    /** Test method for
-     * {@link fr.bigeon.gclc.command.HelpExecutor#HelpExecutor(java.lang.String, fr.bigeon.gclc.manager.ConsoleManager, fr.bigeon.gclc.command.ICommand)}.
-     *
-     * @throws IOException if an IO occurs */
-    @Test
-    public final void testHelpExecutor() throws IOException {
-        HelpExecutor help;
-        help = new HelpExecutor("?", new MockCommand("mock"));
-    }
-
     /** Test method for {@link fr.bigeon.gclc.command.HelpExecutor#tip()}.
-     * 
+     *
      * @throws IOException */
     @Test
     public final void testTip() throws IOException {
         try (PipedConsoleOutput test = new PipedConsoleOutput()) {
             final HelpExecutor help = new HelpExecutor("?",
                     new MockCommand("mock"));
-            help.tip();
+            assertNotNull("Tip should be provided", help.tip());
             help.help(test);
         }
         try (PipedConsoleOutput test = new PipedConsoleOutput()) {
diff --git a/gclc/src/test/java/fr/bigeon/gclc/manager/ReadingRunnableTest.java b/gclc/src/test/java/fr/bigeon/gclc/manager/ReadingRunnableTest.java
index 41378b8..849c427 100644
--- a/gclc/src/test/java/fr/bigeon/gclc/manager/ReadingRunnableTest.java
+++ b/gclc/src/test/java/fr/bigeon/gclc/manager/ReadingRunnableTest.java
@@ -38,6 +38,7 @@
  */
 package fr.bigeon.gclc.manager;
 
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.fail;
 
 import java.io.BufferedReader;
@@ -51,7 +52,8 @@ import java.nio.charset.Charset;
 import org.junit.Before;
 import org.junit.Test;
 
-/** <p>
+/**
+ * <p>
  * TODO
  *
  * @author Emmanuel Bigeon */
@@ -85,7 +87,8 @@ public class ReadingRunnableTest {
      * @throws InterruptedException
      * @throws IOException */
     @Test
-    public final void testGetWaitForDelivery() throws InterruptedException, IOException {
+    public final void testGetWaitForDelivery() throws InterruptedException,
+                                               IOException {
         try (PipedOutputStream out = new PipedOutputStream();
              InputStream piped = new PipedInputStream(out);
              BufferedReader reader = new BufferedReader(
@@ -111,7 +114,9 @@ public class ReadingRunnableTest {
                 }
             }, "get");
             th2.start();
-                th.join();
+            th.join();
+            assertFalse("Runnable should have consumed every message",
+                    runnable.hasMessage());
             runnable.setRunning(false);
             out.close();
         }