MC-19676: Refactored product tier prices

Author: avattam06

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

@@ -58,13 +58,6 @@ interface ProductLinksInterface @typeResolver(class: "Magento\\CatalogGraphQl\\M
     position: Int @doc(description: "The position within the list of product links.")
 }
 
-type ProductTierPrices @doc(description: "The ProductTierPrices object defines a tier price, which is a quantity discount offered to a specific customer group.") {
-    customer_group_id: String @doc(description: "The ID of the customer group.")
-    qty: Float @doc(description: "The number of items that must be purchased to qualify for tier pricing.")
-    value: Float @doc(description: "The price of the fixed price item.")
-    percentage_value: Float @doc(description: "The percentage discount of the item.")
-    website_id: Float @doc(description: "The ID assigned to the website.")
-}
 
 interface ProductInterface @typeResolver(class: "Magento\\CatalogGraphQl\\Model\\ProductInterfaceTypeResolverComposite") @doc(description: "The ProductInterface contains attributes that are common to all types of products. Note that descriptions may not be available for custom and EAV attributes.") {
     id: Int @doc(description: "The ID number assigned to the product.") @resolver(class: "Magento\\CatalogGraphQl\\Model\\Resolver\\Product\\EntityIdToId")
@@ -93,7 +86,6 @@ interface ProductInterface @typeResolver(class: "Magento\\CatalogGraphQl\\Model\
     websites: [Website] @doc(description: "An array of websites in which the product is available.") @resolver(class: "Magento\\CatalogGraphQl\\Model\\Resolver\\Product\\Websites")
     product_links: [ProductLinksInterface] @doc(description: "An array of ProductLinks objects.") @resolver(class: "Magento\\CatalogGraphQl\\Model\\Resolver\\Product\\ProductLinks")
     media_gallery_entries: [MediaGalleryEntry] @deprecated(reason: "Use product's `media_gallery` instead") @doc(description: "An array of MediaGalleryEntry objects.") @resolver(class: "Magento\\CatalogGraphQl\\Model\\Resolver\\Product\\MediaGalleryEntries")
-    tier_prices: [ProductTierPrices] @doc(description: "An array of ProductTierPrices objects.") @resolver(class: "Magento\\CatalogGraphQl\\Model\\Resolver\\Product\\TierPrices")
     price: ProductPrices @doc(description: "A ProductPrices object, indicating the price of an item.") @resolver(class: "Magento\\CatalogGraphQl\\Model\\Resolver\\Product\\Price")
     gift_message_available: String @doc(description: "Indicates whether a gift message is available.")
     manufacturer: Int @doc(description: "A number representing the product's manufacturer.")

composer.json

@@ -123,6 +123,7 @@
         "magento/module-captcha": "*",
         "magento/module-cardinal-commerce": "*",
         "magento/module-catalog": "*",
+        "magento/module-catalog-customer-graph-ql": "*",
         "magento/module-catalog-analytics": "*",
         "magento/module-catalog-import-export": "*",
         "magento/module-catalog-inventory": "*",

composer.lock

@@ -282,7 +282,6 @@ public function testQueryAllFieldsSimpleProduct()
         $this->assertBaseFields($product, $response['products']['items'][0]);
         $this->assertEavAttributes($product, $response['products']['items'][0]);
         $this->assertOptions($product, $response['products']['items'][0]);
-        $this->assertTierPrices($product, $response['products']['items'][0]);
         $this->assertArrayHasKey('websites', $response['products']['items'][0]);
         $this->assertWebsites($product, $response['products']['items'][0]['websites']);
         self::assertEquals(
@@ -723,24 +722,7 @@ private function assertCustomAttribute($actualResponse)
         $customAttribute = null;
         $this->assertEquals($customAttribute, $actualResponse['attribute_code_custom']);
     }
-
-    /**
-     * @param ProductInterface $product
-     * @param $actualResponse
-     */
-    private function assertTierPrices($product, $actualResponse)
-    {
-        $tierPrices = $product->getTierPrices();
-        $this->assertNotEmpty($actualResponse['tier_prices'], "Precondition failed: 'tier_prices' must not be empty");
-        foreach ($actualResponse['tier_prices'] as $tierPriceIndex => $tierPriceArray) {
-            foreach ($tierPriceArray as $key => $value) {
-                /** @var \Magento\Catalog\Model\Product\TierPrice $tierPrice */
-                $tierPrice = $tierPrices[$tierPriceIndex];
-                $this->assertEquals($value, $tierPrice->getData($key));
-            }
-        }
-    }
-
+    
     /**
      * @param ProductInterface $product
      * @param $actualResponse