Do not require startup when not necessary + refacto

tests/php-unit-tests/integration-tests/login-tests/extension-with-delegated-authentication-endpoints-list/src/Controller/FileInDelegatedAuthenticationEndpointsListAndAdminRequired.php

@@ -1,5 +1,10 @@
 <?php
 
+if (UserRights::IsLoggedIn()) {
+	throw new Exception("User should not be authenticated at this point");
+}
+require_once(APPROOT.'/application/startup.inc.php');
+
 LoginWebPage::DoLogin(true);
 
 echo 'Yo !';