public void Reborn_should_not_call_reborn_on_result_if_task_completed_and_just_return_the_returned_phoenixState()
{
IPhoenixState reborn = Substitute.For <IPhoenixState>();
Func <Task <IPhoenixState> > action = () => Task.FromResult(reborn);
var state = new RaisingPhoenix();
IPhoenixState rebornState;
do
{
rebornState = state.Reborn(action);
} while (object.ReferenceEquals(rebornState, state));
reborn.Received(0).Reborn(Arg.Any <Func <Task <IPhoenixState> > >());
}