graphQl-786: deprecated qty

Author: Vitaliy Boyko

app/code/Magento/BundleGraphQl/Model/Resolver/Links/Collection.php

@@ -117,6 +117,7 @@ private function fetch() : array
                 'price' => $link->getSelectionPriceValue(),
                 'position' => $link->getPosition(),
                 'id' => $link->getSelectionId(),
+                'qty' => (int)$link->getSelectionQty(),
                 'quantity' => (int)$link->getSelectionQty(),
                 'is_default' => (bool)$link->getIsDefault(),
                 'price_type' => $this->enumLookup->getEnumValueFromField(

app/code/Magento/BundleGraphQl/etc/schema.graphqls

@@ -14,6 +14,7 @@ type BundleItem @doc(description: "BundleItem defines an individual item in a bu
 type BundleItemOption @doc(description: "BundleItemOption defines characteristics and options for a specific bundle item.") {
     id: Int @doc(description: "The ID assigned to the bundled item option.")
     label: String @doc(description: "The text that identifies the bundled item option.") @resolver(class: "Magento\\BundleGraphQl\\Model\\Resolver\\Options\\Label")
+    qty: Float @deprecated(reason: "The `qty` is deprecated. Use `quantity` instead.") @doc(description: "Indicates the quantity of this specific bundle item.")
     quantity: Float @doc(description: "Indicates the quantity of this specific bundle item.")
     position: Int @doc(description: "When a bundle item contains multiple options, the relative position of this option compared to the other options.")
     is_default: Boolean @doc(description: "Indicates whether this option is the default option.")

dev/tests/api-functional/testsuite/Magento/GraphQl/Bundle/BundleProductViewTest.php

@@ -428,8 +428,9 @@ public function testNonExistentFieldQtyExceptionOnBundleProduct()
 QUERY;
 
         $this->expectException(\Exception::class);
-        $this->expectExceptionMessage('GraphQL response contains errors: Cannot'. ' ' .
-            'query field "qty" on type "ProductInterface".');
+        $this->expectExceptionMessage(
+            'GraphQL response contains errors: Cannot query field "qty" on type "ProductInterface".'
+        );
         $this->graphQlQuery($query);
     }
 }