MAGETWO-91745: Product pages load blank page

- Added automated test

Author: tsoyaleksey

app/code/Magento/Catalog/Test/Mftf/Data/CatalogAttributeSetData.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<entities xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:noNamespaceSchemaLocation="urn:magento:mftf:DataGenerator/etc/dataProfileSchema.xsd">
+    <entity name="CatalogAttributeSet" type="CatalogAttributeSet">
+        <data key="attribute_set_name" unique="suffix">test_set_</data>
+        <data key="attributeGroupId">7</data>
+        <data key="skeletonId">4</data>
+    </entity>
+</entities>

app/code/Magento/Catalog/Test/Mftf/Data/ProductData.xml

@@ -301,6 +301,20 @@
         <requiredEntity type="product_extension_attribute">EavStockItem</requiredEntity>
         <requiredEntity type="custom_attribute_array">CustomAttributeCategoryIds</requiredEntity>
     </entity>
+    <entity name="SimpleProductWithCustomAttributeSet" type="product">
+        <data key="sku" unique="suffix">testSku</data>
+        <data key="type_id">simple</data>
+        <var key="attribute_set_id" entityKey="attribute_set_id" entityType="CatalogAttributeSet"/>
+        <data key="visibility">4</data>
+        <data key="name" unique="suffix">testProductName</data>
+        <data key="price">123.00</data>
+        <data key="urlKey" unique="suffix">testurlkey</data>
+        <data key="status">1</data>
+        <data key="weight">1</data>
+        <data key="quantity">100</data>
+        <requiredEntity type="product_extension_attribute">EavStockItem</requiredEntity>
+        <requiredEntity type="custom_attribute_array">CustomAttributeCategoryIds</requiredEntity>
+    </entity>
     <entity name="productWithOptions" type="product">
         <var key="sku" entityType="product" entityKey="sku" />
         <data key="file">magento.jpg</data>

app/code/Magento/Catalog/Test/Mftf/Metadata/catalog_attribute_set-meta.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<operations xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+            xsi:noNamespaceSchemaLocation="urn:magento:mftf:DataGenerator/etc/dataOperation.xsd">
+    <operation name="AddCatalogAttributeToAttributeSet" dataType="CatalogAttributeSet" type="create" auth="adminOauth" url="/V1/products/attribute-sets" method="POST">
+        <contentType>application/json</contentType>
+        <object key="attributeSet" dataType="CatalogAttributeSet">
+            <field key="attribute_set_name">string</field>
+            <field key="sort_order">integer</field>
+        </object>
+        <field key="skeletonId">integer</field>
+    </operation>
+    <operation name="DeleteCatalogAttributeFromAttributeSet" dataType="CatalogAttributeSet" type="delete" auth="adminOauth" url="/V1/products/attribute-sets/{attribute_set_id}" method="DELETE">
+        <contentType>application/json</contentType>
+    </operation>
+    <operation name="GetCatalogAttributesFromDefaultSet" dataType="CatalogAttributeSet" type="get" auth="adminOauth" url="/V1/products/attribute-sets/{attribute_set_id}" method="GET">
+        <contentType>application/json</contentType>
+    </operation>
+</operations>