App\Entities\Setting\MailSettingEntity::setDriver PHP Method

    public function setDriver($driver)
    {
        $this->driver = $driver;
        return $this;
    }

 public function test_Should_SetAndGetDriver()
 {
     $mailSettingEntity = new MailSettingEntity();
     $mailSettingEntity->setDriver('smtp');
     $driver = $mailSettingEntity->getDriver();
     $this->assertEquals('smtp', $driver);
 }