--- /dev/null
+<?php
+
+namespace Drupal\deprecation_test;
+
+/**
+ * Defines a controller that calls a deprecated method.
+ */
+class DeprecatedController {
+
+ /**
+ * Controller callback.
+ *
+ * @return array
+ * Render array.
+ */
+ public function deprecatedMethod() {
+ return [
+ '#markup' => deprecation_test_function(),
+ ];
+ }
+
+}