refactoring, static test fixes

Author: Nazar65

app/code/Magento/Backend/Block/Widget/Grid/Column/Renderer/AbstractRenderer.php

@@ -9,6 +9,9 @@
 use Magento\Framework\DataObject;
 
 /**
+ * Produce html output using the given data source.
+ *
+ * phpcs:disable Magento2.Classes.AbstractApi
  * Backend grid item abstract renderer
  * @api
  * @SuppressWarnings(PHPMD.NumberOfChildren)
@@ -53,7 +56,7 @@ public function getColumn()
      * Renders grid column
      *
      * @param DataObject $row
-     * @return  string
+     * @return string
      */
     public function render(DataObject $row)
     {
@@ -90,6 +93,7 @@ protected function _getValue(DataObject $row)
             if (is_string($getter)) {
                 return $row->{$getter}();
             } elseif (is_callable($getter)) {
+                //phpcs:ignore Magento2.Functions.DiscouragedFunction
                 return call_user_func($getter, $row);
             }
             return '';

app/code/Magento/Payment/Test/Unit/Gateway/Data/PaymentDataObjectTest.php

@@ -5,45 +5,61 @@
  */
 namespace Magento\Payment\Test\Unit\Gateway\Data;
 
-use Magento\Payment\Gateway\Data\PaymentDataObject;
 use Magento\Payment\Gateway\Data\OrderAdapterInterface;
+use Magento\Payment\Gateway\Data\PaymentDataObject;
 use Magento\Payment\Model\InfoInterface;
+use PHPUnit\Framework\MockObject\MockObject;
 
 /**
- * Class PaymentDataObjectTest
+ * Tests for PaymentDataObject
  */
 class PaymentDataObjectTest extends \PHPUnit\Framework\TestCase
 {
-    /** @var PaymentDataObject */
+    /**
+     * @var PaymentDataObject
+     */
     protected $model;
 
     /**
-     * @var OrderAdapterInterface|\PHPUnit_Framework_MockObject_MockObject
+     * @var OrderAdapterInterface|MockObject
      */
     protected $orderMock;
 
     /**
-     * @var InfoInterface|\PHPUnit_Framework_MockObject_MockObject
+     * @var InfoInterface|\MockObject
      */
     protected $paymentMock;
 
+    /**
+     * @inheritdoc
+     */
     protected function setUp()
     {
-        $this->orderMock = $this->getMockBuilder(\Magento\Payment\Gateway\Data\OrderAdapterInterface::class)
+        $this->orderMock = $this->getMockBuilder(OrderAdapterInterface::class)
             ->getMockForAbstractClass();
 
-        $this->paymentMock = $this->getMockBuilder(\Magento\Payment\Model\InfoInterface::class)
+        $this->paymentMock = $this->getMockBuilder(InfoInterface::class)
             ->getMockForAbstractClass();
 
         $this->model = new PaymentDataObject($this->orderMock, $this->paymentMock);
     }
 
-    public function testGetOrder()
+    /**
+     * Verify can get order
+     *
+     * @return void
+     */
+    public function testGetOrder(): void
     {
         $this->assertSame($this->orderMock, $this->model->getOrder());
     }
 
-    public function testGetPayment()
+    /**
+     * Verify can get payment
+     *
+     * @return void
+     */
+    public function testGetPayment(): void
     {
         $this->assertSame($this->paymentMock, $this->model->getPayment());
     }