groovy – Geb配置

userName = "myUserName"

properties = {
  userName = "myUserName"
}

props {
  userName = "myUserName"
}

environments {
  chrome = { 
    driver = { new ChromeDriver() }
    userName = "myUserName" //with and without {}
  }
}

然而我似乎无法通过以下方式访问这些属性：

browser.driver.properties.username

我能够在配置文件中设置这些属性,然后在我的规范中访问它们吗？我似乎得到了@L_801_6@认的属性集,这只是系统属性.