diff --git a/core/modules/menu/lib/Drupal/menu/Tests/MenuNodeTest.php b/core/modules/menu/lib/Drupal/menu/Tests/MenuNodeTest.php
index 9d4b8d4..d2d023b 100644
--- a/core/modules/menu/lib/Drupal/menu/Tests/MenuNodeTest.php
+++ b/core/modules/menu/lib/Drupal/menu/Tests/MenuNodeTest.php
@@ -54,8 +54,7 @@ function testMenuNodeFormWidget() {
       'menu_options[tools]' => 1,
     );
     $this->drupalPost('admin/structure/types/manage/page', $edit, t('Save content type'));
-    // Change default parent item to Tools menu, so we can assert more
-    // easily.
+    // Change default parent item to Tools menu, so we can assert more easily.
     $edit = array(
       'menu_parent' => 'tools:0',
     );
@@ -114,7 +113,8 @@ function testMenuNodeFormWidget() {
     );
     menu_link_save($item);
 
-    // Assert that disabled Administration menu is not shown on the node/$nid/edit page.
+    // Assert that disabled Administration menu is not shown on the
+    // node/$nid/edit page.
     $this->drupalGet('node/' . $node->nid . '/edit');
     $this->assertText('Provide a menu link', 'Link in not allowed menu not shown in node edit form');
     // Assert that the link is still in the Administration menu after save.
diff --git a/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php b/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php
index 2067e7d..e0b9b92 100644
--- a/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php
+++ b/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php
@@ -90,8 +90,7 @@ function testMenu() {
   }
 
   /**
-   * Test standard menu functionality using Tools menu.
-   *
+   * Tests standard menu functionality using the Tools menu.
    */
   function doStandardMenuTests() {
     $this->doMenuTests();
@@ -99,8 +98,7 @@ function doStandardMenuTests() {
   }
 
   /**
-   * Test custom menu functionality using Tools menu.
-   *
+   * Tests custom menu functionality using the Tools menu.
    */
   function doCustomMenuTests() {
     $this->menu = $this->addCustomMenu();
@@ -207,8 +205,7 @@ function deleteCustomMenu($menu) {
   }
 
   /**
-   * Test menu functionality using Tools menu.
-   *
+   * Tests menu functionality using the Tools menu.
    */
   function doMenuTests($menu_name = 'tools') {
     // Add nodes to use as links for menu links.
diff --git a/core/modules/system/lib/Drupal/system/Tests/Menu/BreadcrumbTest.php b/core/modules/system/lib/Drupal/system/Tests/Menu/BreadcrumbTest.php
index 661a712..b9df6a3 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Menu/BreadcrumbTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Menu/BreadcrumbTest.php
@@ -36,9 +36,9 @@ function setUp() {
     $this->admin_user = $this->drupalCreateUser($perms);
     $this->drupalLogin($this->admin_user);
 
-    // This test puts menu links in the Tools menu and then tests for
-    // their presence on the page, so we need to ensure that the Tools
-    // block will be displayed in all active themes.
+    // This test puts menu links in the Tools menu and then tests for their
+    // presence on the page, so we need to ensure that the Tools block will be
+    // displayed in all active themes.
     db_update('block')
       ->fields(array(
         // Use a region that is valid for all themes.
diff --git a/core/modules/system/lib/Drupal/system/Tests/Menu/TrailTest.php b/core/modules/system/lib/Drupal/system/Tests/Menu/TrailTest.php
index 44ba998..66c6ff8 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Menu/TrailTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Menu/TrailTest.php
@@ -33,9 +33,9 @@ function setUp() {
     $this->admin_user = $this->drupalCreateUser(array('administer site configuration', 'access administration pages'));
     $this->drupalLogin($this->admin_user);
 
-    // This test puts menu links in the Tools menu and then tests for
-    // their presence on the page, so we need to ensure that the Tools
-    // block will be displayed in all active themes.
+    // This test puts menu links in the Tools menu and then tests for their
+    // presence on the page, so we need to ensure that the Tools block will be
+    // displayed in all active themes.
     db_update('block')
       ->fields(array(
         // Use a region that is valid for all themes.
@@ -91,8 +91,8 @@ function testMenuTreeSetPath() {
     variable_del('menu_test_menu_tree_set_path');
     $this->assertBreadcrumb('menu-test/menu-trail', $breadcrumb, t('Menu trail - Case 1'), $tree);
 
-    // Override the active trail for the Administration tree; it should not affect
-    // the Tools tree.
+    // Override the active trail for the Administration tree; it should not
+    // affect the Tools tree.
     variable_set('menu_test_menu_tree_set_path', $test_menu_path);
     $this->assertBreadcrumb('menu-test/menu-trail', $breadcrumb, t('Menu trail - Case 1'), $tree);
 
@@ -117,8 +117,8 @@ function testMenuTreeSetPath() {
     variable_del('menu_test_menu_tree_set_path');
     $this->assertBreadcrumb('admin/config/development/menu-trail', $breadcrumb, t('Menu trail - Case 2'), $tree);
 
-    // Override the active trail for the Administration tree; it should affect the
-    // breadcrumbs and Administration tree.
+    // Override the active trail for the Administration tree; it should affect
+    // the breadcrumbs and Administration tree.
     variable_set('menu_test_menu_tree_set_path', $test_menu_path);
     $this->assertBreadcrumb('admin/config/development/menu-trail', $override_breadcrumb, t('Menu trail - Case 2'), $override_tree);
   }