--- /dev/null
+<?php
+
+namespace Drupal\Tests\book\Kernel\Migrate\d7;
+
+use Drupal\Tests\migrate_drupal\Kernel\d7\MigrateDrupal7TestBase;
+use Drupal\Tests\SchemaCheckTestTrait;
+
+/**
+ * Tests the migration of Book settings.
+ *
+ * @group migrate_drupal_7
+ */
+class MigrateBookConfigsTest extends MigrateDrupal7TestBase {
+
+ use SchemaCheckTestTrait;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['book', 'node'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->executeMigration('book_settings');
+ }
+
+ /**
+ * Tests migration of book variables to book.settings.yml.
+ */
+ public function testBookSettings() {
+ $config = $this->config('book.settings');
+ $this->assertSame('book', $config->get('child_type'));
+ $this->assertSame('all pages', $config->get('block.navigation.mode'));
+ $this->assertSame(['book'], $config->get('allowed_types'));
+ $this->assertConfigSchema(\Drupal::service('config.typed'), 'book.settings', $config->get());
+ }
+
+}