public void Dispose_Should_call_Dispose_on_all_systems()
{
bool done1 = false;
bool done2 = false;
ISystem <int> s1 = Substitute.For <ISystem <int> >();
ISystem <int> s2 = Substitute.For <ISystem <int> >();
s1.When(s => s.Dispose()).Do(_ => done1 = true);
s2.When(s => s.Dispose()).Do(_ => done2 = true);
ISystem <int> system = new SequentialSystem <int>(s1, s2);
system.Dispose();
Check.That(done1).IsTrue();
Check.That(done2).IsTrue();
}
public void Dispose()
{
_update.Dispose();
_draw.Dispose();
_gui.Dispose();
}