diff --git a/core/lib/Drupal/Core/Theme/ThemeInitialization.php b/core/lib/Drupal/Core/Theme/ThemeInitialization.php
index 8779f98..fee7cd6 100644
--- a/core/lib/Drupal/Core/Theme/ThemeInitialization.php
+++ b/core/lib/Drupal/Core/Theme/ThemeInitialization.php
@@ -296,7 +296,7 @@ protected function prepareStylesheetsRemove(Extension $theme, $base_themes) {
 
   /**
    * Ensures that a full path is returned for an overriding theme asset.
-   * 
+   *
    * @param \Drupal\Core\Extension\Extension $theme
    *   The theme or base theme.
    * @param string $source
diff --git a/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php b/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php
index f109d4c..dbd0b3e 100644
--- a/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php
+++ b/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php
@@ -158,19 +158,19 @@ public function testLibrariesOverrideOtherAssetLibraryNames() {
     $theme_manager->setActiveTheme($theme_initializer->getActiveThemeByName('test_theme'));
 
     // Assert Drupal relative paths.
-    $library = $library_discovery->getLibraryByName('core', 'jquery.once'); 
+    $library = $library_discovery->getLibraryByName('core', 'drupal.dropbutton');
     $this->assertAssetInLibrary($library['css'], 'drupal.dropbutton', 'themes/my_theme/css/dropbutton.css');
 
     // Assert streamwrappers.
-    $library = $library_discovery->getLibraryByName('core', 'drupal.active-link'); 
+    $library = $library_discovery->getLibraryByName('core', 'drupal.vertical-tabs');
     $this->assertAssetInLibrary($library['css'], 'drupal.vertical-tabs', 'public://my_css/vertical-tabs.css');
 
     // Assert protocol-free URI.
-    $library = $library_discovery->getLibraryByName('core', 'drupal.dialog'); 
+    $library = $library_discovery->getLibraryByName('core', 'jquery.ui');
     $this->assertAssetInLibrary($library['css'], 'jquery.ui', '//my-server/my_theme/css/jquery_ui.css');
 
     // Assert regular URI.
-    $library = $library_discovery->getLibraryByName('core', 'jquery.farbtastic'); 
+    $library = $library_discovery->getLibraryByName('core', 'jquery.farbtastic');
     $this->assertAssetInLibrary($library['css'], 'jquery.farbtastic', 'http://example.com/my_theme/css/farbtastic.css');
   }