AC-15051:[CE] PHPUnit 12: Upgrade Product Types related test cases

Author: sandesh-as

app/code/Magento/Bundle/Model/LinkManagement.php

@@ -252,11 +252,10 @@ private function processLinkedProduct(
             throw new CouldNotSaveException(__('Could not save child: "%1"', $e->getMessage()), $e);
         }
 
-        $selectionId = (int)$selectionModel->getId();
-        $linkedProduct->setId($selectionId);
-        $linkedProduct->setSelectionId($selectionId);
+        $linkedProduct->setId($selectionModel->getId());
+        $linkedProduct->setSelectionId($selectionModel->getId());
         $linkedProduct->setOptionId($optionId);
-        return $selectionId;
+        return (int)$selectionModel->getId();
     }
 
     /**

app/code/Magento/Bundle/Test/Unit/Model/LinkManagementTest.php

@@ -629,7 +629,7 @@ public function testAddChild(): void
 
         $selection = $this->createPartialMock(Selection::class, ['save', 'getId', 'load']);
         $selection->expects($this->once())->method('save');
-        $selection->expects($this->once())->method('getId')->willReturn(42);
+        $selection->method('getId')->willReturn(42);
         $this->bundleSelectionMock->expects($this->once())->method('create')->willReturn($selection);
         $result = $this->model->addChild($productMock, 1, $productLink);
         $this->assertEquals(42, $result);