diff --git a/Test/PreparePersonTrait.php b/Test/PreparePersonTrait.php
new file mode 100644
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--- /dev/null
+++ b/Test/PreparePersonTrait.php
@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * Copyright (C) 2015 Julien Fastré <julien.fastre@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Chill\PersonBundle\Test;
+
+use Chill\PersonBundle\Entity\Person;
+
+/**
+ * 
+ *
+ * @author Julien Fastré <julien.fastre@champs-libres.coop>
+ */
+class PreparePersonTrait
+{
+    
+    /**
+     * prepare a person
+     * 
+     * Properties added are : 
+     * - firstname
+     * - lastname
+     * - genre
+     * 
+     * This person should not be persisted in a database
+     * 
+     * @param Center $center
+     * @return Person
+     */
+    protected function preparePerson(Center $center)
+    {
+        return (new Person())
+              ->setCenter($center)
+              ->setFirstName('test firstname')
+              ->setLastName('default lastname')
+              ->setGenre(Person::GENRE_MAN)
+              ;
+    }
+    
+}