diff --git a/gclc-process/src/test/java/net/bigeon/gclc/process/ProcessAttachementTest.java b/gclc-process/src/test/java/net/bigeon/gclc/process/ProcessAttachementTest.java
new file mode 100644
index 0000000..83844bb
--- /dev/null
+++ b/gclc-process/src/test/java/net/bigeon/gclc/process/ProcessAttachementTest.java
@@ -0,0 +1,34 @@
+/**
+ * 
+ */
+package net.bigeon.gclc.process;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+
+import net.bigeon.gclc.command.SubedCommand;
+import net.bigeon.gclc.exception.InvalidCommandName;
+
+/**
+ * @author Emmanuel Bigeon
+ *
+ */
+public class ProcessAttachementTest {
+
+    /** Test method for
+     * {@link net.bigeon.gclc.process.ProcessAttachement#attach(net.bigeon.gclc.command.ICommandProvider)}.
+     * 
+     * @throws InvalidCommandName if the command has already some subcommand that is
+     *         incompatible */
+    @Test
+    public void testAttach() throws InvalidCommandName {
+        final TaskPool pool = new TaskPool();
+        final ProcessAttachement attachement = new ProcessAttachement(pool);
+        final SubedCommand testPoint = new SubedCommand("test");
+        attachement.attach(testPoint);
+        assertNotNull("Commands should be added", testPoint.get("kill"));
+        assertNotNull("Commands should be added", testPoint.get("list"));
+    }
+
+}
diff --git a/gclc-process/src/test/java/net/bigeon/gclc/process/ScreenAttachementTest.java b/gclc-process/src/test/java/net/bigeon/gclc/process/ScreenAttachementTest.java
new file mode 100644
index 0000000..86b3699
--- /dev/null
+++ b/gclc-process/src/test/java/net/bigeon/gclc/process/ScreenAttachementTest.java
@@ -0,0 +1,33 @@
+/**
+ * 
+ */
+package net.bigeon.gclc.process;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+
+import net.bigeon.gclc.command.SubedCommand;
+import net.bigeon.gclc.exception.InvalidCommandName;
+
+/** @author Emmanuel Bigeon */
+public class ScreenAttachementTest {
+
+    /** Test method for
+     * {@link net.bigeon.gclc.process.ScreenAttachement#attach(net.bigeon.gclc.command.ICommandProvider)}.
+     * 
+     * @throws InvalidCommandName if an error occured in attachement */
+    @Test
+    public void testAttach() throws InvalidCommandName {
+        final TaskPool pool = new TaskPool();
+        final ScreenAttachement attachement = new ScreenAttachement(pool, 15);
+        final SubedCommand testPoint = new SubedCommand("test");
+        attachement.attach(testPoint);
+        assertNotNull("Commands should be added", testPoint.get("terminate"));
+        assertNotNull("Commands should be added", testPoint.get("list"));
+        assertNotNull("Commands should be added", testPoint.get("clear"));
+        assertNotNull("Commands should be added", testPoint.get("fg"));
+        assertNotNull("Commands should be added", testPoint.get("fork"));
+    }
+
+}
diff --git a/gclc-process/src/test/java/net/bigeon/gclc/process/TaskSpawnerTest.java b/gclc-process/src/test/java/net/bigeon/gclc/process/TaskSpawnerTest.java
new file mode 100644
index 0000000..d51d3d6
--- /dev/null
+++ b/gclc-process/src/test/java/net/bigeon/gclc/process/TaskSpawnerTest.java
@@ -0,0 +1,80 @@
+/**
+ * 
+ */
+package net.bigeon.gclc.process;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+import org.junit.Test;
+
+import net.bigeon.gclc.exception.CommandRunException;
+import net.bigeon.gclc.manager.ConsoleInput;
+import net.bigeon.gclc.manager.ConsoleOutput;
+
+/** @author Emmanuel Bigeon */
+public class TaskSpawnerTest {
+
+    /** Test method for
+     * {@link net.bigeon.gclc.process.TaskSpawner#execute(net.bigeon.gclc.manager.ConsoleOutput, net.bigeon.gclc.manager.ConsoleInput, java.lang.String[])}.
+     * 
+     * @throws CommandRunException if an error occurred */
+    @Test
+    public void testExecute() throws CommandRunException {
+        final Task task = new Task() {
+            @Override
+            public void run() {
+                //
+            }
+            @Override
+            public void setRunning(final boolean running) {
+                //
+            }
+            @Override
+            public void rmInterruptionListener(final InterruptionListener listener) {
+                //
+            }
+            @Override
+            public boolean isRunning() {
+                return false;
+            }
+            @Override
+            public String getName() {
+                return "abc";
+            }
+            @Override
+            public void addInterruptionListener(final InterruptionListener listener) {
+                //
+            }
+        };
+        final TaskPool pool = new TaskPool();
+        assertTrue("Pool not empty", pool.getPIDs().isEmpty());
+        final ExecutorService service = Executors.newSingleThreadExecutor();
+        final TaskSpawner spawner = new TaskSpawner("name", pool, service) {
+
+            @Override
+            public String tip() {
+                return "tip";
+            }
+
+            @Override
+            protected String usageDetail() {
+                return "no details";
+            }
+
+            @Override
+            protected Task createTask(final ConsoleOutput out, final ConsoleInput in,
+                    final String... args) throws CommandRunException {
+                return task;
+            }
+        };
+        spawner.execute(null, null);
+        assertEquals("Added the task", 1, pool.getPIDs().size());
+        final Integer id = pool.getPIDs().iterator().next();
+        assertEquals("Added task is not the one", task, pool.get(id));
+    }
+
+}