ACP2E-1345, added default values for insert

Author: aplapana

app/code/Magento/Bundle/Model/ResourceModel/Selection.php

@@ -174,8 +174,8 @@ public function saveSelectionPrice($item)
             $values = [
                 'selection_id' => $item->getSelectionId(),
                 'website_id' => $item->getWebsiteId(),
-                'selection_price_type' => $item->getSelectionPriceType(),
-                'selection_price_value' => $item->getSelectionPriceValue(),
+                'selection_price_type' => $item->getSelectionPriceType() ?? 0,
+                'selection_price_value' => $item->getSelectionPriceValue() ?? 0,
                 'parent_product_id' => $item->getParentProductId(),
             ];
             $connection->insertOnDuplicate(

dev/tests/api-functional/testsuite/Magento/Bundle/Api/ProductLinkManagementTest.php

@@ -87,6 +87,32 @@ public function testAddChild()
         $this->assertGreaterThan(0, $childId);
     }
 
+    /**
+     * @magentoApiDataFixture Magento/Bundle/_files/product.php
+     * @magentoApiDataFixture Magento/Catalog/_files/product_virtual.php
+     */
+    public function testAddChildWithoutPriceAndPriceType()
+    {
+        $productSku = 'bundle-product';
+        $children = $this->getChildren($productSku);
+
+        $optionId = $children[0]['option_id'];
+
+        $linkedProduct = [
+            'sku' => 'virtual-product',
+            'option_id' => $optionId,
+            'position' => '1',
+            'is_default' => 1,
+            'priceType' => null,
+            'price' => null,
+            'qty' => 8,
+            'can_change_quantity' => 1,
+        ];
+
+        $childId = $this->addChild($productSku, $optionId, $linkedProduct);
+        $this->assertGreaterThan(0, $childId);
+    }
+
     /**
      * Verify empty out of stock bundle product is in stock after child has been added.
      *