diff --git a/YACOSTest/.classpath b/YACOSTest/.classpath
new file mode 100644
index 0000000..50ad62b
--- /dev/null
+++ b/YACOSTest/.classpath
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="lib" path="/usr/local/debuire/bin/junit-4.4.jar"/>
+	<classpathentry combineaccessrules="false" kind="src" path="/YACOSCore"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/YACOSTest/.project b/YACOSTest/.project
new file mode 100644
index 0000000..5fc9d0d
--- /dev/null
+++ b/YACOSTest/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>YACOSTest</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/YACOSTest/src/org/yacos/tests/core/TestConferenceManager.java b/YACOSTest/src/org/yacos/tests/core/TestConferenceManager.java
new file mode 100644
index 0000000..03c2925
--- /dev/null
+++ b/YACOSTest/src/org/yacos/tests/core/TestConferenceManager.java
@@ -0,0 +1,24 @@
+package org.yacos.tests.core;
+
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.yacos.core.conferences.Conference;
+import org.yacos.core.conferences.ConferenceManagerBean;
+import org.yacos.core.conferences.IConferenceManager;
+
+
+public class TestConferenceManager {
+	IConferenceManager conferenceManager;
+	
+	@BeforeClass
+	public void setUpManager() {
+		conferenceManager = new ConferenceManagerBean();
+	}
+	
+	@Before
+	public void setUpConferences() {
+		conferenceManager.getConferences();
+		Conference conf = new Conference();
+		conferenceManager.addConference(conf);
+	}
+}
diff --git a/YACOSTest/src/org/yacos/tests/core/TestRole.java b/YACOSTest/src/org/yacos/tests/core/TestRole.java
new file mode 100644
index 0000000..01c157e
--- /dev/null
+++ b/YACOSTest/src/org/yacos/tests/core/TestRole.java
@@ -0,0 +1,15 @@
+/**
+ * 
+ */
+package org.yacos.tests.core;
+
+
+/**
+ * @author christiancorsano
+ *
+ */
+public class TestRole {
+	public void aRoleShouldBeUnique(){
+		// TODO : look for roles of the same type, same user and same conference
+	}
+}
diff --git a/YACOSTest/src/org/yacos/tests/core/TestUser.java b/YACOSTest/src/org/yacos/tests/core/TestUser.java
new file mode 100644
index 0000000..61cfd89
--- /dev/null
+++ b/YACOSTest/src/org/yacos/tests/core/TestUser.java
@@ -0,0 +1,44 @@
+package org.yacos.tests.core;
+
+import static org.junit.Assert.*;
+
+import javax.naming.Context;
+import javax.naming.InitialContext;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.yacos.core.users.IUsersManager;
+import org.yacos.core.users.User;
+
+public class TestUser {
+	private IUsersManager manager;
+	
+	@Before
+	public void setUp() throws Exception {
+		Context context = new InitialContext();
+		manager = (IUsersManager) context.lookup("UsersManagerBean/remote");
+		
+		manager.removeUser(manager.getUser("toto"));
+		
+		User toto = new User();
+		toto.setLogin("toto");
+		toto.setFirstName("Toto");
+		toto.setLastName("John");
+		manager.addUser(toto);
+	}
+	
+	@Test
+	public void testManagerPresence(){
+		assertNotNull(manager);
+	}
+	
+	@Test
+	public void testUserWritingReading(){
+		
+		User user = manager.getUser("toto");
+		assertNotNull(user);
+		assertEquals("toto", user.getLogin());
+		assertEquals("Toto", user.getLastName());
+		assertEquals("John", user.getFirstName());
+	}
+}