BuggyTestCase.php

<?php
namespace Tests;

use Illuminate\Foundation\Testing\TestCase as BaseTestCase;

class TestCase extends BaseTestCase
{
    use CreatesApplication;

    protected $headers = ['accept' => 'application/json'];
    
    public function __construct()
    {
       parent::__construct();    // Illuminate\Foundation\Testing\TestCase has no __construct, so it bubbles up to PHPUnit\Framework\TestCase. But without any args
    }
}