ACPT-677: Catalog product grid improvement

- Add integration test;

Author: adifucan

app/code/Magento/Ui/view/base/web/js/grid/provider.js

@@ -79,7 +79,7 @@ define([
             this.setData({
                 items: [],
                 totalRecords: 0,
-                showTotalRecords: true,
+                showTotalRecords: true
             });
 
             return this;

dev/tests/integration/testsuite/Magento/Catalog/Ui/DataProvider/Product/LimitTotalNumberOfProductsTest.php

@@ -0,0 +1,160 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Catalog\Ui\DataProvider\Product;
+
+use Magento\Catalog\Model\ResourceModel\Product\CollectionFactory;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\ObjectManager;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Limit total number of products in grid collection test.
+ */
+class LimitTotalNumberOfProductsTest extends TestCase
+{
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var ScopeConfigInterface
+     */
+    private $scopeConfig;
+
+    protected function setUp(): void
+    {
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->scopeConfig = $this->objectManager->get(ScopeConfigInterface::class);
+    }
+
+    /**
+     * Test limit total number of products is enabled and limit is reached.
+     *
+     * @magentoDataFixture Magento/Catalog/_files/products_list.php
+     */
+    public function testLimitNumberOfProductsEnabled()
+    {
+        $productCollection = $this->objectManager->create(
+            CollectionFactory::class,
+            [
+                ObjectManager::class,
+                'instanceName' => ProductCollection::class
+            ]
+        );
+        $dataProvider = $this->objectManager->create(
+            ProductDataProvider::class,
+            [
+                'name' => 'product_listing_data_source',
+                'primaryFieldName' => 'entity_id',
+                'requestFieldName' => 'id',
+                'collectionFactory' => $productCollection
+            ]
+        );
+
+        $this->scopeConfig->setValue(
+            'admin/grid/limit_total_number_of_products',
+            1
+        );
+        $this->scopeConfig->setValue(
+            'admin/grid/records_limit',
+            2
+        );
+
+        $data = $dataProvider->getData();
+        $this->assertEquals(2, $data['totalRecords']);
+    }
+
+    /**
+     * Test limit total number of products is enabled and limit is not reached.
+     *
+     * @magentoDataFixture Magento/Catalog/_files/products_list.php
+     */
+    public function testLimitNumberOfProductsEnabledAndLimitIsNotReached()
+    {
+        $productCollection = $this->objectManager->create(
+            CollectionFactory::class,
+            [
+                ObjectManager::class,
+                'instanceName' => ProductCollection::class
+            ]
+        );
+        $dataProvider = $this->objectManager->create(
+            ProductDataProvider::class,
+            [
+                'name' => 'product_listing_data_source',
+                'primaryFieldName' => 'entity_id',
+                'requestFieldName' => 'id',
+                'collectionFactory' => $productCollection
+            ]
+        );
+
+        $this->scopeConfig->setValue(
+            'admin/grid/limit_total_number_of_products',
+            1
+        );
+        $this->scopeConfig->setValue(
+            'admin/grid/records_limit',
+            3
+        );
+
+        $data = $dataProvider->getData();
+        $this->assertEquals(3, $data['totalRecords']);
+    }
+
+    /**
+     * Test limit total number of products is disabled.
+     *
+     * @magentoDataFixture Magento/Catalog/_files/products_list.php
+     */
+    public function testLimitNumberOfProductsDisabled()
+    {
+        $productCollection = $this->objectManager->create(
+            CollectionFactory::class,
+            [
+                ObjectManager::class,
+                'instanceName' => ProductCollection::class
+            ]
+        );
+        $dataProvider = $this->objectManager->create(
+            ProductDataProvider::class,
+            [
+                'name' => 'product_listing_data_source',
+                'primaryFieldName' => 'entity_id',
+                'requestFieldName' => 'id',
+                'collectionFactory' => $productCollection
+            ]
+        );
+
+        $this->scopeConfig->setValue(
+            'admin/grid/limit_total_number_of_products',
+            0
+        );
+        $this->scopeConfig->setValue(
+            'admin/grid/records_limit',
+            20000
+        );
+
+        $data = $dataProvider->getData();
+        $this->assertEquals(3, $data['totalRecords']);
+    }
+
+    protected function tearDown(): void
+    {
+        $this->scopeConfig->setValue(
+            'admin/grid/limit_total_number_of_products',
+            0
+        );
+        $this->scopeConfig->setValue(
+            'admin/grid/records_limit',
+            20000
+        );
+    }
+}