MC-39714: Create automated test for: "Try to add option with unique validation one more time"

Author: Serhii Bohomaz

dev/tests/integration/testsuite/Magento/ConfigurableProduct/Controller/Adminhtml/Product/Attribute/CreateOptionsTest.php

@@ -0,0 +1,81 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\ConfigurableProduct\Controller\Adminhtml\Product\Attribute;
+
+use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Framework\App\Request\Http as HttpRequest;
+use Magento\Framework\Serialize\SerializerInterface;
+use Magento\TestFramework\TestCase\AbstractBackendController;
+
+/**
+ * Test for creates options for product attributes.
+ *
+ * @see \Magento\ConfigurableProduct\Controller\Adminhtml\Product\Attribute\CreateOptions
+ * @magentoAppArea adminhtml
+ * @magentoDbIsolation enabled
+ */
+class CreateOptionsTest extends AbstractBackendController
+{
+    /** @var ProductRepositoryInterface */
+    private $productRepository;
+
+    /** @var SerializerInterface */
+    private $json;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->productRepository = $this->_objectManager->get(ProductRepositoryInterface::class);
+        $this->json = $this->_objectManager->get(SerializerInterface::class);
+    }
+
+    /**
+     * @magentoDataFixture Magento/ConfigurableProduct/_files/product_configurable.php
+     *
+     * @return void
+     */
+    public function testAddOptionWithUniqueValidationOneMoreTime(): void
+    {
+        $this->getRequest()->setMethod(HttpRequest::METHOD_POST);
+        $this->getRequest()->setParams([
+            'options' => [0 => [
+                    'label' => 'Option 1',
+                    'is_new' => true,
+                    'attribute_id' => $this->getFirstAttributeId()
+                    ]
+                ]
+            ]);
+        $this->dispatch('backend/catalog/product_attribute/createOptions');
+        $responseBody = $this->json->unserialize($this->getResponse()->getBody());
+        $this->assertNotEmpty($responseBody['message']);
+        $this->assertStringContainsString(
+            (string)__('The value of attribute ""test_configurable"" must be unique'),
+            $responseBody['message']
+        );
+    }
+
+    /**
+     * Get first attribute id
+     *
+     * @return int
+     */
+    private function getFirstAttributeId(): int
+    {
+        $configurableProduct = $this->productRepository->get('configurable');
+        $options = $configurableProduct->getExtensionAttributes()->getConfigurableProductOptions();
+        foreach ($options as $option) {
+            $attributeIds[] = $option->getAttributeId();
+        }
+
+        return (int)array_shift($attributeIds);
+    }
+}