Issue #2989469 by amateescu: MediaUpdateTest is broken

(cherry picked from commit bfb51769)

core/modules/media/tests/fixtures/update/drupal-8.media-add-additional-permissions.php

+<?php
+// @codingStandardsIgnoreFile
+
+/**
+ * @file
+ * Contains database additions to drupal-8.4.0.bare.standard.php.gz for testing
+ * the upgrade path of https://www.drupal.org/node/2862422.
+ */
+
+use Drupal\Core\Database\Database;
+
+$connection = Database::getConnection();
+
+$role = $connection->select('config')
+  ->fields('config', ['data'])
+  ->condition('collection', '')
+  ->condition('name', 'user.role.authenticated')
+  ->execute()
+  ->fetchField();
+$role = unserialize($role);
+
+$role['permissions'][] = 'update media';
+$role['permissions'][] = 'update any media';
+$role['permissions'][] = 'delete media';
+$role['permissions'][] = 'delete any media';
+$role['permissions'][] = 'create media';
+
+$connection->update('config')
+  ->fields([
+    'data' => serialize($role),
+    'collection' => '',
+    'name' => 'user.role.authenticated',
+  ])
+  ->condition('collection', '')
+  ->condition('name', 'user.role.authenticated')
+  ->execute();

core/modules/media/tests/src/Functional/Update/MediaUpdateTest.php

@@ -18,8 +18,9 @@ class MediaUpdateTest extends UpdatePathTestBase {
    */
   protected function setDatabaseDumpFiles() {
     $this->databaseDumpFiles = [
-      __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.bare.standard.php.gz',
-      __DIR__ . '/../../../fixtures/update/drupal-8.media-enabled.php',
+      __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.4.0.bare.standard.php.gz',
+      __DIR__ . '/../../../fixtures/update/drupal-8.4.0-media_installed.php',
+      __DIR__ . '/../../../fixtures/update/drupal-8.media-add-additional-permissions.php',
     ];
   }
 
@@ -29,16 +30,6 @@ protected function setDatabaseDumpFiles() {
    * @see media_update_8500()
    */
   public function testBundlePermission() {
-    $role = Role::load(Role::AUTHENTICATED_ID);
-
-    $this->grantPermissions($role, [
-      'update media',
-      'update any media',
-      'delete media',
-      'delete any media',
-      'create media',
-    ]);
-
     $this->runUpdates();
 
     /** @var \Drupal\user\RoleInterface $role */
@@ -60,16 +51,12 @@ public function testBundlePermission() {
    * @see media_update_8600()
    */
   public function testOEmbedConfig() {
-    // The drupal-8.media-enabled.php fixture installs Media and all its config,
-    // which includes the oembed_providers_url and iframe_domain keys in
-    // media.settings. So, in order to prove that the update actually works,
-    // delete the values from config before running the update.
-    $this->config('media.settings')
-      ->clear('oembed_providers_url')
-      ->clear('iframe_domain')
-      ->save(TRUE);
+    $config = $this->config('media.settings');
+    $this->assertNull($config->get('oembed_providers_url'));
+    $this->assertNull($config->get('iframe_domain'));
 
     $this->runUpdates();
+
     $config = $this->config('media.settings');
     $this->assertSame('https://oembed.com/providers.json', $config->get('oembed_providers_url'));
     $this->assertSame('', $config->get('iframe_domain'));