MC-40865: Create automated test for: ""Date and Time" attribute correctly rendered regarding timezone settings"

Author: ysapiga

dev/tests/integration/testsuite/Magento/Eav/Model/Entity/Attribute/Frontend/DatetimeTest.php

@@ -0,0 +1,93 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Eav\Model\Entity\Attribute\Frontend;
+
+use Magento\Catalog\Api\ProductAttributeRepositoryInterface;
+use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Framework\Stdlib\DateTime\DateTime;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\Store\Model\StoreManagerInterface;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Checks Datetime attribute's frontend model
+ *
+ * @see \Magento\Eav\Model\Entity\Attribute\Frontend\Datetime
+ */
+class DatetimeTest extends TestCase
+{
+    /**
+     * @var int
+     */
+    private const ONE_HOUR_IN_MILLISECONDS = 3600;
+
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var ProductAttributeRepositoryInterface
+     */
+    private $attributeRepository;
+
+    /**
+     * @var ProductRepositoryInterface
+     */
+    private $productRepository;
+
+    /**
+     * @var StoreManagerInterface
+     */
+    private $storeManager;
+
+    /**
+     * @var DateTime
+     */
+    private $dateTime;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->storeManager = $this->objectManager->get(StoreManagerInterface::class);
+        $this->attributeRepository = $this->objectManager->get(ProductAttributeRepositoryInterface::class);
+        $this->productRepository = $this->objectManager->get(ProductRepositoryInterface::class);
+        $this->productRepository->cleanCache();
+        $this->dateTime = $this->objectManager->create(DateTime::class);
+    }
+
+    /**
+     * @magentoDbIsolation disabled
+     *
+     * @magentoDataFixture Magento/Catalog/_files/product_two_websites.php
+     * @magentoDataFixture Magento/Catalog/_files/product_datetime_attribute.php
+     *
+     * @magentoConfigFixture default_store general/locale/timezone Europe/Moscow
+     * @magentoConfigFixture fixture_second_store_store general/locale/timezone Europe/Kiev
+     *
+     * @return void
+     */
+    public function testFrontendValueOnDifferentWebsites(): void
+    {
+        $attribute = $this->attributeRepository->get('datetime_attribute');
+        $product = $this->productRepository->get('simple-on-two-websites');
+        $product->setDatetimeAttribute($this->dateTime->date('Y-m-d H:i:s'));
+        $valueOnWebsiteOne = $attribute->getFrontend()->getValue($product);
+        $secondStoreId = $this->storeManager->getStore('fixture_second_store')->getId();
+        $this->storeManager->setCurrentStore($secondStoreId);
+        $valueOnWebsiteTwo = $attribute->getFrontend()->getValue($product);
+        $this->assertEquals(
+            self::ONE_HOUR_IN_MILLISECONDS,
+            $this->dateTime->gmtTimestamp($valueOnWebsiteOne) - $this->dateTime->gmtTimestamp($valueOnWebsiteTwo),
+            'The difference between the two time zones are incorrect'
+        );
+    }
+}