MC-39629: Increase coverage of "Magento/Catalog/Model/Layer/Category/ItemCollectionProvider.php"

Author: Serhii Bohomaz

dev/tests/integration/testsuite/Magento/Catalog/Model/Layer/Category/ItemCollectionProviderTest.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Catalog\Model\Layer\Category;
+
+use Magento\Catalog\Api\CategoryRepositoryInterface;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Test cases item collection provider.
+ *
+ * @see \Magento\Catalog\Model\Layer\Category\ItemCollectionProvider
+ * @magentoAppArea frontend
+ */
+class ItemCollectionProviderTest extends TestCase
+{
+    /** @var ObjectManagerInterface */
+    private $objectManager;
+
+    /** @var CategoryRepositoryInterface */
+    private $categoryRepository;
+
+    /** @var ItemCollectionProvider */
+    private $itemCollectionProvider;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->itemCollectionProvider = $this->objectManager->get(ItemCollectionProvider::class);
+        $this->categoryRepository = $this->objectManager->get(CategoryRepositoryInterface::class);
+    }
+
+    /**
+     * @magentoDbIsolation disabled
+     * @magentoDataFixture Magento/Catalog/_files/category_product.php
+     * @magentoDataFixture Magento/Catalog/_files/second_product_simple.php
+     *
+     * @return void
+     */
+    public function testGetCollection(): void
+    {
+        $category = $this->categoryRepository->get(333);
+        $collectionProduct = $this->itemCollectionProvider->getCollection($category);
+        $this->assertEquals('simple333', $collectionProduct->getFirstItem()->getSku());
+        $this->assertCount(1, $collectionProduct->getItems());
+    }
+}