MC-40083: Create automated test for: "Error during reindex with more than 64 product attributes"

Author: ysapiga

dev/tests/integration/testsuite/Magento/Catalog/Model/Indexer/Product/Flat/Action/FullTest.php

@@ -10,13 +10,15 @@
 use Magento\Catalog\Api\Data\ProductInterface;
 use Magento\Catalog\Api\ProductRepositoryInterface;
 use Magento\Catalog\Block\Product\ListProduct;
+use Magento\Catalog\Helper\Product\Flat\Indexer as IndexerHelper;
 use Magento\Catalog\Model\CategoryFactory;
 use Magento\Catalog\Model\Indexer\Product\Flat\Processor;
 use Magento\Catalog\Model\Indexer\Product\Flat\State;
 use Magento\Catalog\Model\ResourceModel\Product\CollectionFactory as ProductCollectionFactory;
 use Magento\Catalog\Model\ResourceModel\Product\Flat as FlatResource;
 use Magento\CatalogSearch\Model\Indexer\Fulltext;
 use Magento\Eav\Api\AttributeOptionManagementInterface;
+use Magento\Framework\Exception\LocalizedException;
 use Magento\Framework\Indexer\IndexerRegistry;
 use Magento\Framework\ObjectManagerInterface;
 use Magento\Store\Model\StoreManagerInterface;
@@ -49,6 +51,9 @@ class FullTest extends TestCase
     /** @var Full */
     private $action;
 
+    /** @var IndexerHelper */
+    private $productIndexerHelper;
+
     /**
      * @inheritdoc
      */
@@ -79,6 +84,7 @@ protected function setUp(): void
         $this->optionManagement = $this->objectManager->get(AttributeOptionManagementInterface::class);
         $this->productRepository = $this->objectManager->get(ProductRepositoryInterface::class);
         $this->action = $this->objectManager->get(Full::class);
+        $this->productIndexerHelper = $this->objectManager->get(IndexerHelper::class);
     }
 
     /**
@@ -180,6 +186,28 @@ public function testCheckDropdownAttributeInFlat(): void
         $this->assertFlatColumnValue($attributeCode, $attributeValue);
     }
 
+    /**
+     * @magentoDbIsolation disabled
+     *
+     * @magentoConfigFixture default/catalog/product/flat/max_index_count 1
+     *
+     * @return void
+     */
+    public function testWithTooManyIndexes(): void
+    {
+        $indexesNeed = count($this->productIndexerHelper->getFlatIndexes());
+        $message = (string)__(
+            'The Flat Catalog module has a limit of %2$d filterable and/or sortable attributes.'
+            . 'Currently there are %1$d of them.'
+            . 'Please reduce the number of filterable/sortable attributes in order to use this module',
+            $indexesNeed,
+            1
+        );
+        $this->expectExceptionMessage($message);
+        $this->expectException(LocalizedException::class);
+        $this->action->execute();
+    }
+
     /**
      * Assert if column exist and column value in flat table
      *