Cover \Magento\CheckoutAgreements\Model\ResourceModel\Agreement\Grid\Collection class with Integration test

Author: TomashKhamlai

dev/tests/integration/testsuite/Magento/CheckoutAgreements/Model/ResourceModel/Grid/CollectionTest.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\CheckoutAgreements\Model\ResourceModel\Grid;
+
+use Magento\CheckoutAgreements\Model\ResourceModel\Agreement\Grid\Collection;
+use Magento\TestFramework\Helper\Bootstrap;
+
+/**
+ * Check data in collection
+ */
+class CollectionTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @var Collection;
+     */
+    private $collection;
+
+    /**
+     * @inheritdoc
+     */
+    public function setUp()
+    {
+        $this->collection = Bootstrap::getObjectManager()->create(Collection::class);
+    }
+
+    /**
+     * Check that collection is filterable by store
+     *
+     * @magentoDataFixture Magento/CheckoutAgreements/_files/multi_agreements_active_with_text.php
+     */
+    public function testAddStoresToFilter(): void
+    {
+        $collectionSize = $this->collection->addStoreFilter(1)->load(false, false)->getSize();
+        $this->assertEquals(2, $collectionSize);
+    }
+}