diff --git a/3269267-2.patch b/3269267-2.patch
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/core/modules/dblog/tests/src/Functional/DbLogTest.php b/core/modules/dblog/tests/src/Functional/DbLogTest.php
index f83931cf4d..c85a95521d 100644
--- a/core/modules/dblog/tests/src/Functional/DbLogTest.php
+++ b/core/modules/dblog/tests/src/Functional/DbLogTest.php
@@ -11,6 +11,7 @@
 use Drupal\dblog\Controller\DbLogController;
 use Drupal\error_test\Controller\ErrorTestController;
 use Drupal\Tests\BrowserTestBase;
+use Drupal\Tests\system\Functional\Menu\AssertBreadcrumbTrait;
 
 /**
  * Generate events and verify dblog entries; verify user access to log reports
@@ -20,6 +21,7 @@
  */
 class DbLogTest extends BrowserTestBase {
   use FakeLogEntries;
+  use AssertBreadcrumbTrait;
 
   /**
    * Modules to enable.
@@ -38,7 +40,7 @@ class DbLogTest extends BrowserTestBase {
   /**
    * {@inheritdoc}
    */
-  protected $defaultTheme = 'classy';
+  protected $defaultTheme = 'stark';
 
   /**
    * A user with some relevant administrative permissions.
@@ -366,9 +368,13 @@ private function verifyBreadcrumbs() {
     $query = Database::getConnection()->select('watchdog');
     $query->addExpression('MIN([wid])');
     $wid = $query->execute()->fetchField();
-    $this->drupalGet('admin/reports/dblog/event/' . $wid);
-    $xpath = '//nav[@class="breadcrumb"]/ol/li[last()]/a';
-    $this->assertEquals('Recent log messages', current($this->xpath($xpath))->getText(), 'DBLogs link displayed at breadcrumb in event page.');
+    $trail = [
+      '' => 'Home',
+      '/admin' => 'Administration',
+      '/admin/reports' => 'Reports',
+      '/admin/reports/dblog' => 'Recent log messages',
+    ];
+    $this->assertBreadcrumb('admin/reports/dblog/event/' . $wid, $trail);
   }
 
   /**
diff --git a/core/modules/dblog/tests/src/Functional/DbLogViewsTest.php b/core/modules/dblog/tests/src/Functional/DbLogViewsTest.php
index 2101bb9252..65f97621ac 100644
--- a/core/modules/dblog/tests/src/Functional/DbLogViewsTest.php
+++ b/core/modules/dblog/tests/src/Functional/DbLogViewsTest.php
@@ -31,13 +31,13 @@ class DbLogViewsTest extends DbLogTest {
   /**
    * {@inheritdoc}
    */
-  protected $defaultTheme = 'classy';
+  protected $defaultTheme = 'stark';
 
   /**
    * {@inheritdoc}
    */
   protected function getLogsEntriesTable() {
-    return $this->xpath('.//table[contains(@class, "views-view-table")]/tbody/tr');
+    return $this->xpath('.//div[contains(@class, "views-element-container")]//table/tbody/tr');
   }
 
   /**