neiyou_user_web/tests/Unit/ExampleTest.php

<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;
use Redis;

class ExampleTest extends TestCase {
	/**
	 * A basic test example.
	 *
	 * @return void
	 */
	public function testBasicTest() {
		try{
			//create redis instance
			$redis = new Redis();
			//connect with server and port
			$redis->connect('localhost', 6379);
			//set value
			$redis->set('website', 'www.phpflow.com');
			//get value
			$website = $redis->get('website');
			//print www.phpflow.com
			echo $website;

		}catch(Exception $ex){
			echo $ex->getMessage();
		}
	}
}