MC-18514: API functional test to cover filterable custom attributes in layered navigation

- review comments

Author: dthampy

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

@@ -302,7 +302,11 @@ public function testFilterProductsByDropDownCustomAttribute()
             ]
         );
     }
-    private function reIndexAndCleanCache()
+
+    /**
+     * @return void
+     */
+    private function reIndexAndCleanCache() : void
     {
         $objectManager = Bootstrap::getObjectManager();
         $indexer = $objectManager->create(Indexer::class);
@@ -1558,7 +1562,7 @@ public function testFilterByExactSkuAndSortByPriceDesc()
      */
     public function testProductBasicFullTextSearchQuery()
     {
-       $this->reIndexAndCleanCache();
+        $this->reIndexAndCleanCache();
         $textToSearch = 'blue';
         $query
             =<<<QUERY

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

@@ -65,10 +65,10 @@
     ->setSku('navy-striped-shoes')
     ->setPrice(40)
     ->setWeight(8)
-    ->setDescription('Blue striped flip flops at <b>one</b>')
+    ->setDescription('blue striped flip flops at <b>one</b>')
     ->setMetaTitle('navy blue colored shoes meta title')
     ->setMetaKeyword('blue, navy, striped , women, kids')
-    ->setMetaDescription('blue', 'shoes women kids meta description')
+    ->setMetaDescription('blue shoes women kids meta description')
     ->setStockData(['use_config_manage_stock' => 0])
     ->setVisibility(\Magento\Catalog\Model\Product\Visibility::VISIBILITY_BOTH)
     ->setStatus(\Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED)
@@ -96,7 +96,7 @@
 
 /** @var \Magento\Catalog\Model\Product $greyProduct */
 $greyProduct = $productRepository->get('grey_shorts');
-$greyProduct->setDescription('Description with blue lines');
+$greyProduct->setDescription('Description with Blue lines');
 $productRepository->save($greyProduct);
 
 $skus = ['green_socks', 'white_shorts','red_trousers','blue_briefs','grey_shorts',