--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Update;
+
+/**
+ * Runs RouterIndexOptimizationTest with a dump filled with content.
+ *
+ * @group Update
+ */
+class RouterIndexOptimizationFilledTest extends RouterIndexOptimizationTest {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setDatabaseDumpFiles() {
+ parent::setDatabaseDumpFiles();
+ $this->databaseDumpFiles[0] = __DIR__ . '/../../../../tests/fixtures/update/drupal-8.filled.standard.php.gz';
+ }
+
+}