CreatesApplication.php

<?php

    /**
     * Creates the application.
     *
     * @return \Illuminate\Foundation\Application
     */
    public function createApplication()
    {
        $app = require __DIR__.'/../bootstrap/app.php';

        if ($app->configurationIsCached()) {
            throw new RuntimeException('Your configuration is cached. Any variable in phpunit.xml did not take effect.');
        }

        $app->make(Kernel::class)->bootstrap();

        $this->protectDatabase();

        return $app;
    }