Static tests fixes

Author: Mohamed-Asar

app/code/Magento/Sales/Helper/Reorder.php

@@ -11,7 +11,7 @@
  */
 class Reorder extends \Magento\Framework\App\Helper\AbstractHelper
 {
-    const XML_PATH_SALES_REORDER_ALLOW = 'sales/reorder/allow';
+    public const XML_PATH_SALES_REORDER_ALLOW = 'sales/reorder/allow';
 
     /**
      * @var \Magento\Sales\Api\OrderRepositoryInterface
@@ -33,6 +33,8 @@ public function __construct(
     }
 
     /**
+     * Check if reorder is allowed
+     *
      * @return bool
      */
     public function isAllow()

app/code/Magento/Sales/Test/Unit/Helper/ReorderTest.php

@@ -156,7 +156,6 @@ public function testCanReorder($orderCanReorder)
     {
         $this->setupOrderMock(true);
 
-
         $this->orderMock->expects($this->once())
             ->method('canReorder')
             ->willReturn($orderCanReorder);