diff --git a/src/Exporter.php b/src/Exporter.php
index 42040d3..2504f98 100644
--- a/src/Exporter.php
+++ b/src/Exporter.php
@@ -166,7 +166,7 @@ class Exporter implements ExporterInterface {
       foreach ($uuids as $uuid) {
         $entity = $this->entityRepository->loadEntityByUuid($entity_type, $uuid);
         if (!$entity) {
-          throw new \InvalidArgumentException(sprintf('Entity "%s" with UUID "%s" does not exist', $entity_type, $uuid));
+          throw new \InvalidArgumentException(new FormattableMarkup('Entity @type with UUID @uuid does not exist', ['@type' => $entity_type, '@uuid' => $uuid]));
         }
         $exported_content[$entity_type][$uuid] = $this->exportContent($entity_type, $entity->id());
       }
diff --git a/tests/src/Kernel/ExporterIntegrationTest.php b/tests/src/Kernel/DefaultContentManagerIntegrationTest.php
similarity index 100%
rename from tests/src/Kernel/ExporterIntegrationTest.php
rename to tests/src/Kernel/DefaultContentManagerIntegrationTest.php