LYNX-303: Updated storeConfig test

Author: sumesh-GL

dev/tests/api-functional/testsuite/Magento/GraphQl/Quote/GetMaxItemsInOrderSummaryTest.php

@@ -17,9 +17,12 @@
  */
 class StoreConfigResolverTest extends GraphQlAbstract
 {
+    private const MAX_ITEMS_TO_DISPLAY = 5;
+
     #[
         ConfigFixture(Data::XML_PATH_GUEST_CHECKOUT, true, ScopeInterface::SCOPE_STORE, 'default'),
         ConfigFixture('checkout/options/onepage_checkout_enabled', true, ScopeInterface::SCOPE_STORE, 'default'),
+        ConfigFixture('checkout/options/max_items_display_count', self::MAX_ITEMS_TO_DISPLAY)
     ]
     public function testGetStoreConfig(): void
     {
@@ -29,6 +32,7 @@ public function testGetStoreConfig(): void
   storeConfig {
     is_guest_checkout_enabled,
     is_one_page_checkout_enabled,
+    max_items_in_order_summary
   }
 }
 QUERY;
@@ -47,5 +51,6 @@ private function validateStoreConfig(
     ): void {
         $this->assertTrue($responseConfig['is_guest_checkout_enabled']);
         $this->assertTrue($responseConfig['is_one_page_checkout_enabled']);
+        $this->assertEquals(self::MAX_ITEMS_TO_DISPLAY, $responseConfig['max_items_in_order_summary']);
     }
 }