Unit Test Models with Sqlite

Hi folks,

I am newbie php and Laravel developer. I am trying to do unit testing of my models but I'm not sure about what configuration I need for Laravel 5.

I followed this guide but is not working for me: (https://laracasts.com/lessons/test-databases-in-memory)

This is my test (at the moment is not doing anything):

class UserModelTest extends TestCase {

    /**
     * A basic functional test example.
     *
     * @return void
     */
    public function testBasicExample()
    {
        User::create([
            'name' => 'me',
            'email' => 'email'
        ]);
    }

}

And I've put under config/testing a new database.php file:

return [

    'default' => 'sqlite',

    'connections' => [

        'sqlite' => [
            'driver'   => 'sqlite',
            'database' => ':memory',
            'prefix'   => '',
        ],

    ],

];

But when I ran phpunit I got:

PDOException: SQLSTATE[HY000] [2002] No such file or directory

/laravel-example/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:47
/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php:20
/laravel-example/vendor/compiled.php:10742
/laravel-example/vendor/compiled.php:10738

I presume that is not picking the right environment.

Any idea?

Thanks in advance!