--- /dev/null
+<?php
+
+namespace Drupal\Tests\config_translation\Kernel\Migrate\d6;
+
+use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
+
+/**
+ * Upgrade i18n maintenance variables to system.*.yml.
+ *
+ * @group migrate_drupal_6
+ * @group legacy
+ */
+class MigrateSystemMaintenanceTranslationTest extends MigrateDrupal6TestBase {
+
+ public static $modules = ['language', 'config_translation'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->executeMigration('d6_system_maintenance_translation');
+ }
+
+ /**
+ * Tests migration of system (maintenance) variables to system.maintenance.yml.
+ */
+ public function testSystemMaintenance() {
+ $config = \Drupal::service('language_manager')->getLanguageConfigOverride('fr', 'system.maintenance');
+ $this->assertIdentical('fr - Drupal is currently under maintenance. We should be back shortly. Thank you for your patience.', $config->get('message'));
+ }
+
+}