diff --git a/test/coreExtensions/UserLocalTest.php b/test/coreExtensions/UserLocalTest.php
index b05ba6be3..b780505cc 100644
--- a/test/coreExtensions/UserLocalTest.php
+++ b/test/coreExtensions/UserLocalTest.php
@@ -9,14 +9,7 @@ namespace coreExtensions;
 
 
 use Combodo\iTop\Test\UnitTest\ItopDataTestCase;
-use Combodo\iTop\Test\UnitTest\ItopTestCase;
 use UserLocal;
-use UserLocalPasswordPolicyMockNotValid;
-use UserLocalPasswordPolicyMockNotValidBis;
-use UserLocalPasswordPolicyMockValid;
-use UserLocalPasswordPolicyMockValidBis;
-use UserLocalPasswordValidity;
-use UserPasswordPolicyRegex;
 
 /**
  * test class for UserLocal class
@@ -46,14 +39,17 @@ class UserLocalTest extends ItopDataTestCase
 	 */
 	public function testValidatePassword($sPassword, $aValidatorNames, $aConfigValueMap, $bExpectedCheckStatus, $expectedCheckIssues = null, $sUserLanguage = null)
 	{
+		// We are calling methods that generates DEPRECATED warnings :( Like PHPUnit\Framework\MockObject\Generator::generateMock
+		// Since N°3002 this would make the test fail, so this is a workaround !
+		// changing ways to do mock will be done in N°4224
+		set_error_handler(array(__CLASS__, 'VoidErrorHandlerForDeprecated'));
 		$configMock = $this->createMock(\Config::class);
-
 		$configMock
 			->method('GetModuleSetting')
 			->willReturnMap($aConfigValueMap);
+		restore_error_handler();
 
-		if (isset($sUserLanguage))
-		{
+		if (isset($sUserLanguage)) {
 			\Dict::SetUserLanguage($sUserLanguage);
 		}
 
@@ -74,38 +70,59 @@ class UserLocalTest extends ItopDataTestCase
 
 		$oUserLocal->ValidatePassword($sPassword, $configMock, $aValidatorCollection);
 
-		list($bCheckStatus, $aCheckIssues, $aSecurityIssues) =  $oUserLocal->CheckToWrite();
+		list($bCheckStatus, $aCheckIssues, $aSecurityIssues) = $oUserLocal->CheckToWrite();
 
 		$this->assertSame($bExpectedCheckStatus, $bCheckStatus);
 
-		if (isset($expectedCheckIssues))
-		{
+		if (isset($expectedCheckIssues)) {
 			$this->assertContains($expectedCheckIssues, $aCheckIssues);
 		}
 	}
 
+	/**
+	 * Fake error handler to silently discard DEPRECATED warnings
+	 *
+	 * @param int $iErrNo
+	 * @param string $sErrStr
+	 * @param string $sErrFile
+	 * @param int $iErrLine
+	 *
+	 * @return boolean
+	 */
+	public static function VoidErrorHandlerForDeprecated($iErrno, $sErrStr, $sErrFile, $iErrLine)
+	{
+		if (
+			(\E_USER_DEPRECATED !== $iErrno)
+			&& (\E_DEPRECATED !== $iErrno)
+		) {
+			return false;
+		}
+
+		return true; // Ignore the error
+	}
+
 	public function ProviderValidatePassword()
 	{
 		return array(
-			'validPattern' => array(
-				'password' => 'foo',
+			'validPattern'    => array(
+				'password'             => 'foo',
 				'aValidatorCollection' => array(
 					'UserPasswordPolicyRegex',
 				),
-				'valueMap' => array(
-					array('authent-local', 'password_validation.pattern', null, '.{1,10}')
+				'valueMap'             => array(
+					array('authent-local', 'password_validation.pattern', null, '.{1,10}'),
 				),
-				'expectedCheckStatus' => true,
+				'expectedCheckStatus'  => true,
 			),
 			'notValidPattern' => array(
-				'password' => 'foo',
+				'password'             => 'foo',
 				'aValidatorCollection' => array(
 					'UserPasswordPolicyRegex',
 				),
-				'valueMap' => array(
-					array('authent-local', 'password_validation.pattern', null, '.{6,10}')
+				'valueMap'             => array(
+					array('authent-local', 'password_validation.pattern', null, '.{6,10}'),
 				),
-				'expectedCheckStatus' => false,
+				'expectedCheckStatus'  => false,
 			),
 			'noPattern' => array(
 				'password' => 'foo',