diff --git a/lang/en/sortvoting.php b/lang/en/sortvoting.php
index 57ccf51..dcb4bad 100644
--- a/lang/en/sortvoting.php
+++ b/lang/en/sortvoting.php
@@ -46,15 +46,15 @@
 $string['option'] = 'Option';
 $string['optionno'] = 'Option {no}';
 $string['options'] = 'Options';
-$string['position'] = 'Position';
 $string['pluginadministration'] = 'Preference Sort Voting administration';
 $string['pluginname'] = 'Preference Sort Voting';
+$string['position'] = 'Position';
 $string['privacy'] = 'Privacy of results';
 $string['privacy:metadata:sortvoting_answers'] = 'Information about the user\'s votes for a given Preference Sort Voting activity';
-$string['privacy:metadata:sortvoting_answers:sortvotingid'] = 'The ID of the Preference Sort Voting activity';
 $string['privacy:metadata:sortvoting_answers:optionid'] = 'The ID of the option that the user sorted.';
-$string['privacy:metadata:sortvoting_answers:userid'] = 'The ID of the user answering this Preference Sort Voting activity';
+$string['privacy:metadata:sortvoting_answers:sortvotingid'] = 'The ID of the Preference Sort Voting activity';
 $string['privacy:metadata:sortvoting_answers:timemodified'] = 'The timestamp indicating when the vote was modified by the user';
+$string['privacy:metadata:sortvoting_answers:userid'] = 'The ID of the user answering this Preference Sort Voting activity';
 $string['responses'] = 'Responses';
 $string['sortoptions'] = 'Preference options';
 $string['sortoptions_help'] = 'Here is where you specify the options that participants have to sort with their preferences.
diff --git a/tests/lib_test.php b/tests/lib_test.php
index 7000375..5ed36bd 100644
--- a/tests/lib_test.php
+++ b/tests/lib_test.php
@@ -31,14 +31,14 @@
  * @copyright   2023 Odei Alba <odeialba@odeialba.com>
  * @license     https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class lib_test extends \externallib_advanced_testcase {
+final class lib_test extends \externallib_advanced_testcase {
     /**
      * Tests events after sortvoting is viewed.
      *
      * @covers ::sortvoting_view
      * @return void
      */
-    public function test_sortvoting_view() {
+    public function test_sortvoting_view(): void {
         global $CFG;
 
         $this->resetAfterTest();
@@ -76,7 +76,7 @@ public function test_sortvoting_view() {
      * @covers ::mod_sortvoting_get_completion_active_rule_descriptions
      * @return void
      */
-    public function test_mod_sortvoting_completion_get_active_rule_descriptions() {
+    public function test_mod_sortvoting_completion_get_active_rule_descriptions(): void {
         $this->resetAfterTest();
         $this->setAdminUser();
 
diff --git a/tests/privacy/provider_test.php b/tests/privacy/provider_test.php
index 6e6b178..0f6bcaf 100644
--- a/tests/privacy/provider_test.php
+++ b/tests/privacy/provider_test.php
@@ -27,7 +27,7 @@
  * @copyright  2023 Odei Alba <odeialba@odeialba.com>
  * @license    https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class provider_test extends \core_privacy\tests\provider_testcase {
+final class provider_test extends \core_privacy\tests\provider_testcase {
     /** @var stdClass The student object. */
     protected $student;
 
@@ -92,7 +92,7 @@ protected function setUp(): void {
      * Test for provider::get_metadata().
      * @covers ::get_metadata
      */
-    public function test_get_metadata() {
+    public function test_get_metadata(): void {
         $collection = new collection('mod_sortvoting');
         $newcollection = provider::get_metadata($collection);
         $itemcollection = $newcollection->get_collection();
@@ -114,7 +114,7 @@ public function test_get_metadata() {
      * Test for provider::get_contexts_for_userid().
      * @covers ::get_contexts_for_userid
      */
-    public function test_get_contexts_for_userid() {
+    public function test_get_contexts_for_userid(): void {
         $cm = get_coursemodule_from_instance('sortvoting', $this->sortvoting->id);
 
         $contextlist = provider::get_contexts_for_userid($this->student->id);
@@ -128,7 +128,7 @@ public function test_get_contexts_for_userid() {
      * Test for provider::export_user_data().
      * @covers ::export_user_data
      */
-    public function test_export_for_context() {
+    public function test_export_for_context(): void {
         $cm = get_coursemodule_from_instance('sortvoting', $this->sortvoting->id);
         $cmcontext = \context_module::instance($cm->id);
 
@@ -142,7 +142,7 @@ public function test_export_for_context() {
      * Test for provider::delete_data_for_all_users_in_context().
      * @covers ::delete_data_for_all_users_in_context
      */
-    public function test_delete_data_for_all_users_in_context() {
+    public function test_delete_data_for_all_users_in_context(): void {
         global $DB;
 
         $sortvoting = $this->sortvoting;
@@ -190,7 +190,7 @@ public function test_delete_data_for_all_users_in_context() {
      * Test for provider::delete_data_for_user().
      * @covers ::delete_data_for_user
      */
-    public function test_delete_data_for_user_() {
+    public function test_delete_data_for_user(): void {
         global $DB;
 
         $sortvoting = $this->sortvoting;
@@ -283,7 +283,7 @@ public function test_delete_data_for_user_() {
      * Test for provider::get_users_in_context().
      * @covers ::get_users_in_context
      */
-    public function test_get_users_in_context() {
+    public function test_get_users_in_context(): void {
         $cm = get_coursemodule_from_instance('sortvoting', $this->sortvoting->id);
         $cmcontext = \context_module::instance($cm->id);
 
@@ -300,7 +300,7 @@ public function test_get_users_in_context() {
      * Test for provider::get_users_in_context() with invalid context type.
      * @covers ::get_users_in_context
      */
-    public function test_get_users_in_context_invalid_context_type() {
+    public function test_get_users_in_context_invalid_context_type(): void {
         $systemcontext = \context_system::instance();
 
         $userlist = new \core_privacy\local\request\userlist($systemcontext, 'mod_sortvoting');
@@ -313,7 +313,7 @@ public function test_get_users_in_context_invalid_context_type() {
      * Test for provider::delete_data_for_users().
      * @covers ::delete_data_for_users
      */
-    public function test_delete_data_for_users() {
+    public function test_delete_data_for_users(): void {
         global $DB;
 
         $sortvoting = $this->sortvoting;