--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Database;
+
+use Drupal\KernelTests\Core\Database\DatabaseTestBase as DatabaseKernelTestBase;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Base class for databases database tests.
+ */
+abstract class DatabaseTestBase extends BrowserTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['database_test'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ DatabaseKernelTestBase::addSampleData();
+ }
+
+}