public void Initial()
{
this.Driver.WaitForAngular();
var before = new Datas(this.Session).Extent().ToArray();
this.page.RadioGroup.Select("one");
this.page.SAVE.Click();
this.Driver.WaitForAngular();
this.Session.Rollback();
var after = new Datas(this.Session).Extent().ToArray();
Assert.Equal(before.Length + 1, after.Length);
var data = after.Except(before).First();
Assert.Equal("one", data.RadioGroup);
}