write a unit test for helper method laravel code example

Example: php unit testing laravel

<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;

class ExampleTest extends TestCase
{
    /**
     * A basic test example.
     *
     * @return void
     */
    public function test_basic_test()
    {
        $this->assertTrue(true);
    }
}