Laravel 5.7 Base Test Case

TestCase.php

<?php

namespace Tests;

use Illuminate\Foundation\Testing\TestCase as BaseTestCase;

abstract class TestCase extends BaseTestCase
{
    use CreatesApplication;

    public function __construct( ? string $name = null, array $data = [], string $dataName = '')
    {
        parent::__construct($name, $data, $dataName);
        $this->hotfixSqlite();
    }

    public function signIn($user = null)
    {
        $this->actingAs($user ?? factory(\App\User::class)->create());
    }

    public function actingAsAdmin($level = 40)
    {
        $this->actingAs(factory(\App\User::class)->create(['access_level' => $level]));
    }

    /**
     * Allow "dropping" foreign keys in SQLite.
     */
    public function hotfixSqlite()
    {
        \Illuminate\Database\Connection::resolverFor('sqlite', function ($connection, $database, $prefix, $config) {
            return new class($connection, $database, $prefix, $config) extends \Illuminate\Database\SQLiteConnection
            {
                public function getSchemaBuilder()
                {
                    if ($this->schemaGrammar === null) {
                        $this->useDefaultSchemaGrammar();
                    }
                    return new class($this) extends \Illuminate\Database\Schema\SQLiteBuilder
                    {
                        protected function createBlueprint($table, \Closure $callback = null)
                        {
                            return new class($table, $callback) extends \Illuminate\Database\Schema\Blueprint
                            {
                                public function dropForeign($index)
                                {
                                    return new \Illuminate\Support\Fluent();
                                }
                            };
                        }
                    };
                }
            };
        });
    }
}