Apply 2 suggestion(s) to 2 file(s)

core/modules/jsonapi/tests/modules/jsonapi_test_resource_type_building/src/EventSubscriber/LateResourceTypeBuildEventSubscriber.php

@@ -32,7 +32,7 @@ public static function getSubscribedEvents(): array {
    * @param \Drupal\jsonapi\ResourceType\ResourceTypeBuildEvent $event
    *   The build event.
    */
-  public function enableResourceTypeFields(ResourceTypeBuildEvent $event) {
+  public function enableResourceTypeFields(ResourceTypeBuildEvent $event): void {
     $aliases = \Drupal::state()->get('jsonapi_test_resource_type_builder.enabled_resource_type_fields', []);
     $resource_type_name = $event->getResourceTypeName();
     if (in_array($resource_type_name, array_keys($aliases), TRUE)) {

core/modules/jsonapi/tests/src/Kernel/ResourceType/ResourceTypeRepositoryTest.php

@@ -217,7 +217,7 @@ public function testResourceTypeFieldDisabling(): void {
   /**
    * Tests that resource type fields can be re-enabled per resource type.
    */
-  public function testResourceTypeFieldEnabling() {
+  public function testResourceTypeFieldEnabling(): void {
     $this->assertTrue($this->resourceTypeRepository->getByTypeName('node--article')->isFieldEnabled('uid'));
     $this->assertTrue($this->resourceTypeRepository->getByTypeName('node--page')->isFieldEnabled('uid'));
     $disabled_resource_type_fields = [