diff -u b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
--- b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
+++ b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
@@ -105,10 +105,6 @@
     $this->drupalPostForm('form-test/object-builder', NULL, 'Save');
     $value = $config_factory->get('form_test.object')->get('bananas');
     $this->assertSame('', $value);
-
-    // Test \Drupal\FunctionalTests\AssertLegacyTrait::getAllOptions.
-    $this->drupalGet('/form-test/select');
-    $this->assertCount(6, $this->getAllOptions($this->cssSelect('select[name="opt_groups"]')[0]));
   }
 
   /**
@@ -432,6 +428,10 @@
     catch (\PHPUnit_Framework_ExpectationFailedException $e) {
       $this->pass($e->getMessage());
     }
+
+    // Test \Drupal\FunctionalTests\AssertLegacyTrait::getAllOptions.
+    $this->drupalGet('/form-test/select');
+    $this->assertCount(6, $this->getAllOptions($this->cssSelect('select[name="opt_groups"]')[0]));
   }
 
   /**