MC-39711: Create automated test for: "Filter products in admin grid"

Author: romadjelf

dev/tests/integration/testsuite/Magento/CatalogInventory/Ui/DataProvider/Product/AddQuantityFilterToCollectionTest.php

@@ -0,0 +1,133 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\CatalogInventory\Ui\DataProvider\Product;
+
+use Magento\Framework\App\RequestInterface;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Framework\View\Element\UiComponent\ContextInterface;
+use Magento\Framework\View\Element\UiComponentFactory;
+use Magento\Framework\View\Element\UiComponentInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Checks that the product quantity filter is working correctly
+ *
+ * @magentoAppArea adminhtml
+ */
+class AddQuantityFilterToCollectionTest extends TestCase
+{
+    /** @var ObjectManagerInterface */
+    private $objectManager;
+
+    /** @var UiComponentFactory */
+    private $componentFactory;
+
+    /** @var RequestInterface */
+    private $request;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->request = $this->objectManager->get(RequestInterface::class);
+        $this->componentFactory = $this->objectManager->get(UiComponentFactory::class);
+    }
+
+    /**
+     * @dataProvider quantityFilterProvider
+     * @magentoDataFixture Magento/Catalog/_files/multiple_products.php
+     * @param array $filter
+     * @param array $expectedProducts
+     * @return void
+     */
+    public function testQuantityFilter(array $filter, array $expectedProducts): void
+    {
+        $this->request->setParams([ContextInterface::FILTER_VAR => $filter]);
+        $dataProviderData = $this->getComponentProvidedData('product_listing');
+        $actualProducts = array_column($dataProviderData['items'], 'sku');
+        $this->assertEquals($expectedProducts, $actualProducts, 'Expected products do not match actual products!');
+    }
+
+    /**
+     * Data provider for testQuantityFilter
+     *
+     * @return array
+     */
+    public function quantityFilterProvider(): array
+    {
+        return [
+            'from' => [
+                'filter' => [
+                    'qty' => [
+                        'from' => 100,
+                    ],
+                ],
+                'expected_products' => [
+                    'simple1',
+                    'simple3',
+                ],
+            ],
+            'to' => [
+                'filter' => [
+                    'qty' => [
+                        'to' => 100,
+                    ],
+                ],
+                'expected_products' => [
+                    'simple1',
+                    'simple2',
+                ],
+            ],
+            'both' => [
+                'filter' => [
+                    'qty' => [
+                        'from' => 60,
+                        'to' => 130,
+                    ],
+                ],
+                'expected_products' => [
+                    'simple1',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Call prepare method in the child components
+     *
+     * @param UiComponentInterface $component
+     * @return void
+     */
+    private function prepareChildComponents(UiComponentInterface $component): void
+    {
+        foreach ($component->getChildComponents() as $child) {
+            $this->prepareChildComponents($child);
+        }
+
+        $component->prepare();
+    }
+
+    /**
+     * Get component provided data
+     *
+     * @param string $namespace
+     * @return array
+     */
+    private function getComponentProvidedData(string $namespace): array
+    {
+        $component = $this->componentFactory->create($namespace);
+        $this->prepareChildComponents($component);
+
+        return $component->getContext()->getDataProvider()->getData();
+    }
+}