MAGETWO-82728: Implement Functional test

- Addressed additional use case to test exception

Author: dthampy

dev/tests/api-functional/testsuite/Magento/GraphQl/Catalog/ProductSearchTest.php

@@ -82,7 +82,8 @@ public function testFilterProductsWithinSpecificPriceRangeSortedByNameDesc()
     }
 
     /**
-     * Request items that are visible in Catalog, Search or Both matching SKU or NAME and price < $60 with a special price and weight = 1 sorted by price in DESC
+     * Requesting for items that are visible in Catalog, Search or Both matching SKU or NAME
+     * and price < $60 with a special price and weight = 1 sorted by price in DESC
      *
      * @magentoApiDataFixture Magento/Catalog/_files/multiple_mixed_products_2.php
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
@@ -426,6 +427,62 @@ public function testQueryFilterNoMatchingItems()
         $this->assertEmpty($response['products']['items'], "No items should be returned.");
     }
 
+    /**
+     * Asserts that exception is thrown when current page > totalCount of items returned
+     *
+     * @magentoApiDataFixture Magento/Catalog/_files/multiple_mixed_products_2.php
+     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
+     */
+    public function testQueryPageOutOfBoundException()
+    {
+        $query
+            = <<<QUERY
+{
+    products(
+        find:
+        {
+          and:
+          {
+            price:{eq:"10"}
+
+           }
+        }
+         pageSize:2
+         currentPage:2
+         sort:
+         {
+          name:ASC
+         }
+    )
+    {
+      items
+      {
+        sku
+        price
+        name
+        status
+        type_id
+           weight
+           visibility
+           attribute_set_id
+         }
+        total_count
+        page_info
+        {
+          page_size
+          current_page
+        }
+
+    }
+}
+QUERY;
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('GraphQL response contains errors: The value' . ' ' .
+            'specified in the currentPage attribute is greater than the number of pages available (1).');
+        $this->graphQlQuery($query);
+    }
+
     /**
      * Asserts the different fields of items returned after search query is executed
      * @param $filteredProducts

dev/tests/integration/testsuite/Magento/Catalog/_files/multiple_mixed_products_2.php

@@ -110,8 +110,7 @@
         ->setId($productId)
         ->setAttributeSetId($attributeSetId)
         ->setWebsiteIds([1])
-      //  ->setName('Configurable Option' . $option->getLabel())
-        ->setName('ConfigurableOption' .$productId .'_' . $option->getLabel())
+        ->setName('ConfigurableOption' .$productId . '_' . $option->getLabel())
         ->setSku('simple_' . $productId)
         ->setPrice($productId)
         ->setWeight(2)