diff -u b/core/tests/Drupal/Tests/Core/Route/RouterRoleTest.php b/core/tests/Drupal/Tests/Core/Route/RouterRoleTest.php
--- b/core/tests/Drupal/Tests/Core/Route/RouterRoleTest.php
+++ b/core/tests/Drupal/Tests/Core/Route/RouterRoleTest.php
@@ -28,13 +28,6 @@
  */
 class RouterRoleTest extends UnitTestCase {
 
-  /**
-   * Stores a list of user objects used in this test.
-   *
-   * @var array
-   */
-  public $accounts = array();
-
   public static function getInfo() {
     return array(
       'name' => 'Router Role tests',
@@ -91,53 +84,27 @@
 
     // Setup one user with the first role, one with the second, one with both
     // and one final without any of these two roles.
-    $this->accounts = array();
-
     $account_1 = new User(array('uid' => 1), 'user');
     $account_1->roles[$rid_1] = $rid_1;
-    $this->accounts[] = $account_1;
 
     $account_2 = new User(array('uid' => 2), 'user');
     $account_2->roles[$rid_2] = $rid_2;
-    $this->accounts[] = $account_2;
 
     $account_12 = new User(array('uid' => 3), 'user');
     $account_12->roles[$rid_1] = $rid_1;
     $account_12->roles[$rid_2] = $rid_2;
-    $this->accounts[] = $account_12;
 
     $account_none = new User(array('uid' => 4), 'user');
-    $this->accounts[] = $account_none;
 
     // Setup expected values; specify which paths can be accessed by which user.
     return array(
-      array('role_test_1', array($account_1, $account_12)),
-      array('role_test_2', array($account_2, $account_12)),
-      array('role_test_3', array($account_12)),
+      array('role_test_1', array($account_1, $account_12), array($account_2, $account_none)),
+      array('role_test_2', array($account_2, $account_12), array($account_1, $account_none)),
+      array('role_test_3', array($account_12), array($account_1, $account_2, $account_none)),
     );
   }
 
   /**
-   * Returns accounts filtered by the passed in accounts.
-   *
-   * @param array $grant_users
-   *   A list of users which should not be part of the result list.
-   *
-   * @return array
-   *   All users which are not granted.
-   */
-  protected function accountsToDeny($grant_users) {
-    return array_filter($this->accounts, function($account) use ($grant_users) {
-      foreach ($grant_users as $grant_user) {
-        if ($account == $grant_user) {
-          return FALSE;
-        }
-      }
-      return TRUE;
-    });
-  }
-
-  /**
    * Tests role requirements on routes.
    *
    * @param string $path
@@ -150,7 +117,7 @@
    *
    * @dataProvider roleAccessProvider
    */
-  public function testRoleAccess($path, $grant_accounts) {
+  public function testRoleAccess($path, $grant_accounts, $deny_accounts) {
     $role_access_check = new RoleAccessCheck();
     $collection = $this->getTestRouteCollection();
 
@@ -164,7 +131,7 @@
     }
 
     // Check all users which don't have access.
-    foreach ($this->accountsToDeny($grant_accounts) as $account) {
+    foreach ($deny_accounts as $account) {
       $GLOBALS['user'] = $account;
 
       $subrequest = Request::create($path, 'GET');