--- /dev/null
+<?php
+
+namespace Drupal\Tests\rest\Functional\Update;
+
+use Drupal\FunctionalTests\Update\UpdatePathTestBase;
+use Drupal\rest\RestResourceConfigInterface;
+
+/**
+ * Tests that rest.settings is converted to rest_resource_config entities.
+ *
+ * @see https://www.drupal.org/node/2308745
+ * @see rest_update_8201()
+ * @see rest_post_update_create_rest_resource_config_entities()
+ *
+ * @group rest
+ */
+class RestConfigurationEntitiesUpdateTest extends UpdatePathTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected static $modules = ['rest', 'serialization'];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setDatabaseDumpFiles() {
+ $this->databaseDumpFiles = [
+ __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.bare.standard.php.gz',
+ __DIR__ . '/../../../fixtures/update/drupal-8.rest-rest_update_8201.php',
+ ];
+ }
+
+ /**
+ * Tests rest_update_8201().
+ */
+ public function testResourcesConvertedToConfigEntities() {
+ /** @var \Drupal\Core\Entity\EntityStorageInterface $resource_config_storage */
+ $resource_config_storage = $this->container->get('entity_type.manager')->getStorage('rest_resource_config');
+
+ // Make sure we have the expected values before the update.
+ $rest_settings = $this->config('rest.settings');
+ $this->assertTrue(array_key_exists('resources', $rest_settings->getRawData()));
+ $this->assertTrue(array_key_exists('entity:node', $rest_settings->getRawData()['resources']));
+ $resource_config_entities = $resource_config_storage->loadMultiple();
+ $this->assertIdentical([], array_keys($resource_config_entities));
+
+ $this->runUpdates();
+
+ // Make sure we have the expected values after the update.
+ $rest_settings = $this->config('rest.settings');
+ $this->assertFalse(array_key_exists('resources', $rest_settings->getRawData()));
+ $resource_config_entities = $resource_config_storage->loadMultiple();
+ $this->assertIdentical(['entity.node'], array_keys($resource_config_entities));
+ $node_resource_config_entity = $resource_config_entities['entity.node'];
+ $this->assertIdentical(RestResourceConfigInterface::RESOURCE_GRANULARITY, $node_resource_config_entity->get('granularity'));
+ $this->assertIdentical([
+ 'methods' => ['GET'],
+ 'formats' => ['json'],
+ 'authentication' => ['basic_auth'],
+ ], $node_resource_config_entity->get('configuration'));
+ $this->assertIdentical(['module' => ['basic_auth', 'node', 'serialization']], $node_resource_config_entity->getDependencies());
+ }
+
+}