store-manage/tests/Unit/ExampleTest.php

<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;

class ExampleTest extends TestCase
{
    /**
     * A basic test example.
     */
    public function test_that_true_is_true(): void
    {
        dump(round(2.6666, 2, PHP_ROUND_HALF_DOWN));
    }
}