--- /dev/null
+<?php
+
+namespace Drupal\service_provider_test;
+
+use Drupal\file\FileInterface;
+use Drupal\file\FileUsage\FileUsageBase;
+
+class TestFileUsage extends FileUsageBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function add(FileInterface $file, $module, $type, $id, $count = 1) {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function delete(FileInterface $file, $module, $type = NULL, $id = NULL, $count = 1) {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function listUsage(FileInterface $file) {
+ }
+
+}