invoiceninja/tests/Unit/RecurringDateTest.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license 
 */
namespace Tests\Unit;

use App\Models\Invoice;
use Illuminate\Foundation\Testing\DatabaseTransactions;
use Illuminate\Support\Carbon;
use Tests\MockAccountData;
use Tests\TestCase;

/**
 * @test
 */
class RecurringDateTest extends TestCase
{
    use DatabaseTransactions;
    use MockAccountData;

    public function setUp() :void
    {
        parent::setUp();

        //$this->makeTestData();
    }

    public function testNextDay()
    {
    	$trial = 60*60*24;

    	$now = Carbon::parse('2021-12-01');

    	$trial_ends = $now->addSeconds($trial)->addDays(1);

    	$this->assertequals($trial_ends->format('Y-m-d'), '2021-12-03');
    }
}