diff --git a/test/phpunit/AllTests.php b/test/phpunit/AllTests.php
index 3f1a3409918cd..9f0f00842d8bd 100644
--- a/test/phpunit/AllTests.php
+++ b/test/phpunit/AllTests.php
@@ -81,6 +81,8 @@ public static function suite()
 		//$suite->addTestSuite('CoreTest');
 		require_once dirname(__FILE__).'/AdminLibTest.php';
 		$suite->addTestSuite('AdminLibTest');
+		require_once dirname(__FILE__).'/ConfTest.php';
+		$suite->addTestSuite('ConfTest');
 		require_once dirname(__FILE__).'/CompanyLibTest.php';
 		$suite->addTestSuite('CompanyLibTest');
 		require_once dirname(__FILE__).'/DateLibTest.php';
diff --git a/test/phpunit/ConfTest.php b/test/phpunit/ConfTest.php
new file mode 100644
index 0000000000000..9b83d413c590e
--- /dev/null
+++ b/test/phpunit/ConfTest.php
@@ -0,0 +1,91 @@
+<?php
+/* Copyright (C) 2013 Laurent Destailleur  <eldy@users.sourceforge.net>
+ * Copyright (C) 2023 Alexandre Janniaux   <alexandre.janniaux@gmail.com>
+ * Copyright (C) 2024		MDW							<mdeweerd@users.noreply.github.com>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ * or see https://www.gnu.org/
+ */
+
+/**
+ *      \file       test/phpunit/FactureRecTest.php
+ *		\ingroup    test
+ *      \brief      PHPUnit test
+ *		\remarks	To run this script as CLI:  phpunit filename.php
+ */
+
+global $conf,$user,$langs,$db;
+//define('TEST_DB_FORCE_TYPE','mysql');	// This is to force using mysql driver
+//require_once 'PHPUnit/Autoload.php';
+require_once dirname(__FILE__).'/../../htdocs/master.inc.php';
+require_once dirname(__FILE__).'/CommonClassTest.class.php';
+
+if (empty($user->id)) {
+	print "Load permissions for admin user nb 1\n";
+	$user->fetch(1);
+	$user->getrights();
+}
+$conf->global->MAIN_DISABLE_ALL_MAILS = 1;
+
+
+/**
+ * Class for PHPUnit tests
+ *
+ * @backupGlobals disabled
+ * @backupStaticAttributes enabled
+ * @remarks	backupGlobals must be disabled to have db,conf,user and lang not erased.
+ */
+class ConfTest extends CommonClassTest
+{
+	/**
+	 * Provider for moduleMap test.
+	 *
+	 * TODO: extend to help test expected dir_output path which depends
+	 * on module name, so extra list is needed
+	 *
+	 * @return array<string,array{0:string,1:string}>
+	 */
+	public function moduleMapProvider()
+	{
+		$tests = [];
+		foreach (self::DEPRECATED_MODULE_MAPPING as $old => $new) {
+			$tests[$old] = [$old, $new];
+		}
+		return $tests;
+	}
+
+	/**
+	 * testModulePaths
+	 *
+	 * @dataProvider moduleMapProvider
+	 *
+	 * @param string $old Module
+	 * @param string $new New Module
+	 * @return void
+	 */
+	public function testModulePaths($old, $new)
+	{
+		global $conf,$user,$langs,$db;
+
+		$conf = $this->savconf;
+		$user = $this->savuser;
+		$langs = $this->savlangs;
+		$db = $this->savdb;
+
+		print "DIR_OUTPUT for $old is {$conf->$old->dir_output}".PHP_EOL;
+		print "DIR_OUTPUT for $new is {$conf->$new->dir_output}".PHP_EOL;
+		$this->assertEquals($conf->$old->dir_output, $conf->$new->dir_output, "Old and new dir_output must be equal");
+		$this->assertEquals($conf->$old->dir_output, $conf->$new->dir_output, "Old and new dir_output must be equal");
+	}
+}