public void PropertyChange2()
{
ObservableInventory inv = DataDirector.GetInstance().CopyInventories().Random();
InventoryManagerViewModel vm = new InventoryManagerViewModel(inv);
string spec = vm.Specification = "some specification";
string memo = vm.Memo = "memo";
var maker = vm.Maker = vm.MakerList.Random();
var measure = vm.Measure = vm.MeasureList.Random();
inv = vm.Update();
Assert.AreEqual(spec, inv.Specification);
Assert.AreEqual(memo, inv.Memo);
Assert.AreEqual(maker, inv.Maker);
Assert.AreEqual(measure, inv.Measure);
}
