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dev/tests/integration/testsuite/Magento/Config/Model/ResourceModel/ConfigTest.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Config\Model\ResourceModel;
+
+class ConfigTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @var \Magento\Config\Model\ResourceModel\Config
+     */
+    protected $_model;
+
+    protected function setUp(): void
+    {
+        $this->_model = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(
+            \Magento\Config\Model\ResourceModel\Config::class
+        );
+    }
+
+    public function testSaveDeleteConfig()
+    {
+        $connection = $this->_model->getConnection();
+        $select = $connection->select()->from($this->_model->getMainTable())->where('path=?', 'test/config');
+        $this->_model->saveConfig('test/config', 'test', 'default', 0);
+        $this->assertNotEmpty($connection->fetchRow($select));
+
+        $this->_model->deleteConfig('test/config', 'default', 0);
+        $this->assertEmpty($connection->fetchRow($select));
+    }
+}