diff --git a/core/modules/statistics/src/Tests/StatisticsAttachedTest.php b/core/modules/statistics/src/Tests/StatisticsAttachedTest.php
index ff4e915..48194ff 100644
--- a/core/modules/statistics/src/Tests/StatisticsAttachedTest.php
+++ b/core/modules/statistics/src/Tests/StatisticsAttachedTest.php
@@ -32,7 +32,7 @@ protected function setUp() {
 
     $this->drupalCreateContentType(['type' => 'page']);
 
-    // Install "block_test_theme" and set it as the default theme.
+    // Install "statistics_test_attached" and set it as the default theme.
     $theme = 'statistics_test_attached';
     \Drupal::service('theme_handler')->install(array($theme));
     $this->config('system.theme')
@@ -54,10 +54,9 @@ public function testAttached() {
       'body' => 'body text'
     ]);
     $node->save();
-    $page = $this->drupalGet('node/' . $node->id());
+    $this->drupalGet('node/' . $node->id());
 
-    global $base_root;
-    $this->assertNotIdentical(strpos($page, '<script src="' . $base_root . base_path() . 'core/modules/statistics/statistics.js'), FALSE, 'Statistics library is available');
+    $this->assertRaw('core/modules/statistics/statistics.js', 'Statistics library is available');
   }
 
 }
diff --git a/core/modules/statistics/tests/themes/statistics_test_attached/node.html.twig b/core/modules/statistics/tests/themes/statistics_test_attached/node.html.twig
index 99974b5..03bb578 100644
--- a/core/modules/statistics/tests/themes/statistics_test_attached/node.html.twig
+++ b/core/modules/statistics/tests/themes/statistics_test_attached/node.html.twig
@@ -1,72 +1,3 @@
-{#
-/**
- * @file
- * Default theme implementation to display a node.
- *
- * Available variables:
- * - node: Full node entity.
- *   - id: The node ID.
- *   - bundle: The type of the node, for example, "page" or "article".
- *   - authorid: The user ID of the node author.
- *   - createdtime: Time the node was published formatted in Unix timestamp.
- *   - changedtime: Time the node was changed formatted in Unix timestamp.
- * - label: The title of the node.
- * - content: All node items. Use {{ content }} to print them all,
- *   or print a subset such as {{ content.field_example }}. Use
- *   {{ content|without('field_example') }} to temporarily suppress the printing
- *   of a given child element.
- * - author_picture: The node author user entity, rendered using the "compact"
- *   view mode.
- * - metadata: Metadata for this node.
- * - date: Themed creation date field.
- * - author_name: Themed author name field.
- * - url: Direct URL of the current node.
- * - display_submitted: Whether submission information should be displayed.
- * - attributes: HTML attributes for the containing element.
- *   The attributes.class element may contain one or more of the following
- *   classes:
- *   - node: The current template type (also known as a "theming hook").
- *   - node--type-[type]: The current node type. For example, if the node is an
- *     "Article" it would result in "node--type-article". Note that the machine
- *     name will often be in a short form of the human readable label.
- *   - node--view-mode-[view_mode]: The View Mode of the node; for example, a
- *     teaser would result in: "node--view-mode-teaser", and
- *     full: "node--view-mode-full".
- *   The following are controlled through the node publishing options.
- *   - node--promoted: Appears on nodes promoted to the front page.
- *   - node--sticky: Appears on nodes ordered above other non-sticky nodes in
- *     teaser listings.
- *   - node--unpublished: Appears on unpublished nodes visible only to site
- *     admins.
- * - title_attributes: Same as attributes, except applied to the main title
- *   tag that appears in the template.
- * - content_attributes: Same as attributes, except applied to the main
- *   content tag that appears in the template.
- * - author_attributes: Same as attributes, except applied to the author of
- *   the node tag that appears in the template.
- * - title_prefix: Additional output populated by modules, intended to be
- *   displayed in front of the main title tag that appears in the template.
- * - title_suffix: Additional output populated by modules, intended to be
- *   displayed after the main title tag that appears in the template.
- * - view_mode: View mode; for example, "teaser" or "full".
- * - teaser: Flag for the teaser state. Will be true if view_mode is 'teaser'.
- * - page: Flag for the full page state. Will be true if view_mode is 'full'.
- * - readmore: Flag for more state. Will be true if the teaser content of the
- *   node cannot hold the main body content.
- * - logged_in: Flag for authenticated user status. Will be true when the
- *   current user is a logged-in member.
- * - is_admin: Flag for admin user status. Will be true when the current user
- *   is an administrator.
- *
- * @see template_preprocess_node()
- *
- * @todo Remove the id attribute (or make it a class), because if that gets
- *   rendered twice on a page this is invalid CSS for example: two lists
- *   in different view modes.
- *
- * @ingroup themeable
- */
-#}
 <article{{ attributes }}>
 
   {{ title_prefix }}