Add return type to tests setUp() and tearDown() functions

Author: justusdieckmann

tests/locallib_test.php

@@ -34,11 +34,11 @@
  */
 class mod_moodleoverflow_locallib_testcase extends advanced_testcase {
 
-    public function setUp() {
+    public function setUp(): void {
         \mod_moodleoverflow\subscriptions::reset_moodleoverflow_cache();
     }
 
-    public function tearDown() {
+    public function tearDown(): void {
         \mod_moodleoverflow\subscriptions::reset_moodleoverflow_cache();
     }
 

tests/privacy_provider_test.php

@@ -45,7 +45,7 @@ class mod_moodleoverflow_privacy_provider_testcase extends \core_privacy\tests\p
     /**
      * Test setUp.
      */
-    public function setUp() {
+    public function setUp(): void {
         $this->resetAfterTest(true);
         $this->generator = $this->getDataGenerator()->get_plugin_generator('mod_moodleoverflow');
     }

tests/subscriptions_test.php

@@ -39,7 +39,7 @@ class mod_moodleoverflow_subscriptions_testcase extends advanced_testcase {
     /**
      * Test setUp.
      */
-    public function setUp() {
+    public function setUp(): void {
         // Clear all caches.
         \mod_moodleoverflow\subscriptions::reset_moodleoverflow_cache();
         \mod_moodleoverflow\subscriptions::reset_discussion_cache();
@@ -48,7 +48,7 @@ public function setUp() {
     /**
      * Test tearDown.
      */
-    public function tearDown() {
+    public function tearDown(): void {
         // Clear all caches.
         \mod_moodleoverflow\subscriptions::reset_moodleoverflow_cache();
         \mod_moodleoverflow\subscriptions::reset_discussion_cache();