--- /dev/null
+<?php
+
+namespace Drupal\Tests\locale\Kernel\Migrate;
+
+use Drupal\Tests\SchemaCheckTestTrait;
+use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
+
+/**
+ * Upgrade variables to locale.settings.yml.
+ *
+ * @group migrate_drupal_6
+ */
+class MigrateLocaleConfigsTest extends MigrateDrupal6TestBase {
+
+ use SchemaCheckTestTrait;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['locale', 'language'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->executeMigration('locale_settings');
+ }
+
+ /**
+ * Tests migration of locale variables to locale.settings.yml.
+ */
+ public function testLocaleSettings() {
+ $config = $this->config('locale.settings');
+ $this->assertIdentical(TRUE, $config->get('cache_strings'));
+ $this->assertIdentical('languages', $config->get('javascript.directory'));
+ $this->assertConfigSchema(\Drupal::service('config.typed'), 'locale.settings', $config->get());
+ }
+
+}