public void GroupTest()
{
var set = new NewVipAvtoSet();
if (!set.GroupExist(2006, "M1", 1, true))
set.AddGroup(2006, "M1", 1, true);
if (set.GroupExist(2006, "M1", 1, true))
set.AddGroup(2024, "M1", 1, true);
Assert.AreEqual(2, set.Groups.Count);
string title = set.GetGroupTitle(set.Groups[0].IdGroup);
Assert.AreEqual("M1 До 2006 Дизельный", title);
int id = set.Groups[0].IdGroup;
Assert.AreEqual(id, set.GetGroupId(title));
}