public void BuildDriver()
{
string browserConfig = _configuration.GetSection("Selenium:browser").Value;
Browsers browser = Enum.GetValues(typeof(Browsers)).Cast <Browsers>().ToList()
.Where(b => b.ToString().ToUpper() == browserConfig.ToUpper()).First();
var sizeConfig = _configuration.GetSection("Selenium:screen");
var size = new Size(int.Parse(sizeConfig.GetSection("width").Value),
int.Parse(sizeConfig.GetSection("height").Value));
bool isHeadless = bool.Parse(_configuration.GetSection("Selenium:headless").Value);
_driver = WebDriverFactory.CreateDriverInstance(browser, size, isHeadless);
}