Issue #3230507: Create build tests for case where site is using core recommended Composer project

src/Event/UpdateVersionSubscriber.php

@@ -6,7 +6,6 @@ use Drupal\automatic_updates\AutomaticUpdatesEvents;
 use Drupal\automatic_updates\Updater;
 use Drupal\automatic_updates\Validation\ValidationResult;
 use Drupal\Core\Extension\ExtensionVersion;
-use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
@@ -41,7 +40,11 @@ class UpdateVersionSubscriber implements EventSubscriberInterface {
    *   The running core version as known to the Update module.
    */
   protected function getCoreVersion(): string {
-    $available_updates = update_calculate_project_data(update_get_available());
+    // We need to call these functions separately, because
+    // update_get_available() will include the file that contains
+    // update_calculate_project_data().
+    $available_updates = update_get_available();
+    $available_updates = update_calculate_project_data($available_updates);
     return $available_updates['drupal']['existing_version'];
   }