diff --git a/core/tests/Drupal/Tests/Core/Pager/PagerFactoryTest.php b/core/tests/Drupal/Tests/Core/Pager/PagerFactoryTest.php
index ad06fd9..273a7c5 100644
--- a/core/tests/Drupal/Tests/Core/Pager/PagerFactoryTest.php
+++ b/core/tests/Drupal/Tests/Core/Pager/PagerFactoryTest.php
@@ -12,6 +12,10 @@
 /**
  * Tests the PagerFactory class.
  *
+ * @todo remove the backupGlobals directive once $pager_page_array,
+ *   $pager_total, $pager_total_items, $pager_limits globals have been removed.
+ *
+ * @backupGlobals disabled
  * @coversDefaultClass \Drupal\Core\Pager\PagerFactory
  * @group Pager
  */
@@ -28,6 +32,10 @@ class PagerFactoryTest extends UnitTestCase {
    * {@inheritdoc}
    */
   protected function setUp() {
+    // @todo drop globals in D9.
+    global $pager_page_array, $pager_total, $pager_total_items, $pager_limits;
+    $pager_page_array = $pager_total = $pager_total_items = $pager_limits = NULL;
+
     $container = new ContainerBuilder();
     $request_stack = $this->getMockBuilder(RequestStack::class)->getMock();
     $query = new ParameterBag(['foo' => 'bar', 'qux' => 'dee']);
@@ -45,13 +53,9 @@ protected function setUp() {
   }
 
   /**
-   * @backupGlobals disabled
    * @covers ::get
    */
   public function testGet() {
-    // @todo remove the backupGlobals directive once $pager_page_array,
-    //   $pager_total, $pager_total_items, $pager_limits globals have been
-    //   removed.
     // Get pager 0.
     $pager = $this->pagerFactory->get(0);
     // Pager element should be 0.
@@ -63,13 +67,9 @@ public function testGet() {
   }
 
   /**
-   * @backupGlobals disabled
    * @covers ::getFirstAvailableElement
    */
   public function testGetFirstAvailableElement() {
-    // @todo remove the backupGlobals directive once $pager_page_array,
-    //   $pager_total, $pager_total_items, $pager_limits globals have been
-    //   removed.
     // No pagers set yet, first available element should be 0.
     $this->assertSame(0, $this->pagerFactory->getFirstAvailableElement());
     // Get pager 0.
@@ -83,13 +83,9 @@ public function testGetFirstAvailableElement() {
   }
 
   /**
-   * @backupGlobals disabled
    * @covers ::all
    */
   public function testAll() {
-    // @todo remove the backupGlobals directive once $pager_page_array,
-    //   $pager_total, $pager_total_items, $pager_limits globals have been
-    //   removed.
     // Get pager 4.
     $pager = $this->pagerFactory->get(4);
     $this->assertSame(4, $pager->getElement());