public void SiteGetDescendants()
{
Site site = new Site();
Assert.That(site.GetDescendants(), Is.Empty);
Area area1 = new Area();
site.Area.Add(area1);
Assert.That(site.GetDescendants(), Is.Not.Empty);
Assert.That(site.GetDescendants().Count, Is.EqualTo(1));
Assert.That(site.GetDescendants()[0], Is.EqualTo(area1));
WorkCentre wc2 = new WorkCentre { name = "WC2" };
area1.WorkCentre.Add(wc2);
Assert.That(site.GetDescendants(), Is.Not.Empty);
Assert.That(site.GetDescendants().Count, Is.EqualTo(2));
Assert.That(site.GetDescendants()[0], Is.EqualTo(area1));
Assert.That(site.GetDescendants()[1], Is.EqualTo(wc2));
}
