diff --git a/core/modules/simpletest/src/WebTestBase.php b/core/modules/simpletest/src/WebTestBase.php
index a7938657cc32c2ecf109426bf76241f3a111191a..c3098e16a890c172484286c72567be502620ae60 100644
--- a/core/modules/simpletest/src/WebTestBase.php
+++ b/core/modules/simpletest/src/WebTestBase.php
@@ -19,6 +19,7 @@
 use Drupal\Core\Test\FunctionalTestSetupTrait;
 use Drupal\Core\Url;
 use Drupal\system\Tests\Cache\AssertPageCacheContextsAndTagsTrait;
+use Drupal\Tests\Traits\Core\CronRunTrait;
 use Drupal\Tests\TestFileCreationTrait;
 use Drupal\Tests\XdebugRequestTrait;
 use Zend\Diactoros\Uri;
@@ -43,6 +44,7 @@ abstract class WebTestBase extends TestBase {
   use ContentTypeCreationTrait {
     createContentType as drupalCreateContentType;
   }
+  use CronRunTrait;
   use AssertMailTrait {
     getMails as drupalGetMails;
   }
@@ -1566,13 +1568,6 @@ protected function translatePostValues(array $values) {
     return $edit;
   }
 
-  /**
-   * Runs cron in the Drupal installed by Simpletest.
-   */
-  protected function cronRun() {
-    $this->drupalGet('cron/' . \Drupal::state()->get('system.cron_key'));
-  }
-
   /**
    * Checks for meta refresh tag and if found call drupalGet() recursively.
    *
diff --git a/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
index ef9c6b59ef64b04f878a90b6d3ac5e53e3407bef..7241fe4916473fdb8b824004b80fc19f5625e13d 100644
--- a/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
+++ b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
@@ -5,6 +5,7 @@
 use Drupal\Component\Utility\Html;
 use Drupal\Core\Url;
 use Drupal\Tests\BrowserTestBase;
+use Drupal\Tests\Traits\Core\CronRunTrait;
 
 /**
  * Tests BrowserTestBase functionality.
@@ -13,6 +14,8 @@
  */
 class BrowserTestBaseTest extends BrowserTestBase {
 
+  use CronRunTrait;
+
   /**
    * Modules to enable.
    *
@@ -162,4 +165,16 @@ public function testLegacyXPathAsserts() {
     $this->assertNoFieldByXPath("//input[@id = 'edit-name']", 'wrong value');
   }
 
+  /**
+   * Tests the ::cronRun() method.
+   */
+  public function testCronRun() {
+    $last_cron_time = \Drupal::state()->get('system.cron_last');
+    $this->cronRun();
+    $this->assertSession()->statusCodeEquals(204);
+    $next_cron_time = \Drupal::state()->get('system.cron_last');
+
+    $this->assertGreaterThan($last_cron_time, $next_cron_time);
+  }
+
 }
diff --git a/core/tests/Drupal/Tests/Traits/Core/CronRunTrait.php b/core/tests/Drupal/Tests/Traits/Core/CronRunTrait.php
new file mode 100644
index 0000000000000000000000000000000000000000..17ca9fcdb6f132a91b5c73d111db5124974caf71
--- /dev/null
+++ b/core/tests/Drupal/Tests/Traits/Core/CronRunTrait.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Drupal\Tests\Traits\Core;
+
+/**
+ * Adds ability to run cron from tests.
+ */
+trait CronRunTrait {
+
+  /**
+   * Runs cron on the test site.
+   */
+  protected function cronRun() {
+    $this->drupalGet('cron/' . \Drupal::state()->get('system.cron_key'));
+  }
+
+}