Laravel - Refresh Database Once

RefreshDatabaseOnce.php

<?php

namespace Tests;

use Illuminate\Foundation\Testing\Traits\CanConfigureMigrationCommands;

/**
 * Refreshes the database once.
 *
 * This is inspired by a post of Stefan Dreßler at medium.com
 *
 * @see https://medium.com/helpspace/fresh-database-once-befor-testing-starts-faa2b10dc76f
 */
trait RefreshDatabaseOnce
{
    use CanConfigureMigrationCommands;

    /**
     * If true, setup has run at least once.
     *
     * @var boolean
     */
    protected static $setUp_has_run_once = false;

    /**
     * Refreshes the database once.
     *
     * Use it in your setUp function
     *
     * @return void
     */
    public function refreshDatabaseOnce()
    {
        if (static::$setUp_has_run_once) {
            return;
        }

        $this->artisan('migrate:fresh', $this->migrateFreshUsing());
        static::$setUp_has_run_once = true;
    }
}

TestCase.php

<?php

namespace Tests;

use Illuminate\Foundation\Testing\TestCase as BaseTestCase;

abstract class TestCase extends BaseTestCase
{
    use CreatesApplication;
    use RefreshDatabaseOnce;

    /**
     * Setup the test environment.
     *
     * @return void
     */
    protected function setUp(): void
    {
        parent::setUp();

        $this->refreshDatabaseOnce();
        
        // extra method calls
    }
}