public void DeletingAnimalTest()
{
PenViewModel penViewModel = new PenViewModel();
penViewModel.RemoveAllAnimals();
penViewModel.AddChicken();
penViewModel.SelectedAnimal = penViewModel.Pen.GetAnimal(0);
penViewModel.RemoveAnimal();
Assert.AreEqual(penViewModel.Pen.GetAnimals().Count, 0);
}
public void Execute(object parameter)
{
_ViewModel.RemoveAnimal();
}