--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Update;
+
+use Drupal\FunctionalTests\Update\UpdatePathTestBase;
+
+/**
+ * Tests system_post_update_recalculate_dependencies_for_installed_config_entities().
+ *
+ * @group Update
+ */
+class RecalculatedDependencyTest extends UpdatePathTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setDatabaseDumpFiles() {
+ $this->databaseDumpFiles = [
+ __DIR__ . '/../../../../tests/fixtures/update/drupal-8.bare.standard.php.gz',
+ ];
+ }
+
+ /**
+ * Ensures that the entities are resaved so they have the new dependency.
+ */
+ public function testUpdate() {
+ // Test the configuration pre update.
+ $data = \Drupal::config('field.field.node.article.field_tags')->get();
+ $this->assertEqual(['entity_reference'], $data['dependencies']['module']);
+ $this->assertEqual([
+ 'field.storage.node.field_tags',
+ 'node.type.article',
+ ], $data['dependencies']['config']);
+
+ $data = \Drupal::config('field.field.user.user.user_picture')->get();
+ $this->assertFalse(isset($data['dependencies']['module']));
+
+ $data = \Drupal::config('field.storage.node.field_image')->get();
+ $this->assertEqual(['node', 'image'], $data['dependencies']['module']);
+
+ // Explicitly break an optional configuration dependencies to ensure it is
+ // recalculated. Use active configuration storage directly so that no events
+ // are fired.
+ $config_storage = \Drupal::service('config.storage');
+ $data = $config_storage->read('search.page.node_search');
+ unset($data['dependencies']);
+ $config_storage->write('search.page.node_search', $data);
+ // Ensure the update is successful.
+ $data = \Drupal::config('search.page.node_search')->get();
+ $this->assertFalse(isset($data['dependencies']['module']));
+
+ // Run the updates.
+ $this->runUpdates();
+
+ // Test the configuration post update.
+ $data = \Drupal::config('field.field.node.article.field_tags')->get();
+ $this->assertFalse(isset($data['dependencies']['module']));
+ $this->assertEqual([
+ 'field.storage.node.field_tags',
+ 'node.type.article',
+ 'taxonomy.vocabulary.tags'
+ ], $data['dependencies']['config']);
+
+ $data = \Drupal::config('field.field.user.user.user_picture')->get();
+ $this->assertEqual(['image', 'user'], $data['dependencies']['module']);
+
+ $data = \Drupal::config('field.storage.node.field_image')->get();
+ $this->assertEqual(['file', 'image', 'node'], $data['dependencies']['module']);
+
+ $data = \Drupal::config('search.page.node_search')->get();
+ $this->assertEqual(['node'], $data['dependencies']['module']);
+ }
+
+}