public void ExecuteAutoTransition_executes_AutoTransition_without_previous_state()
{
var sale = new Sale(saleID: 96)
{
State = SaleState.ChangeDue
};
var transitionResult = new StateTransitionResult <SaleState, SaleEvent>(SaleEvent.ChangeGiven
, SaleState.Open
, SaleState.ChangeDue
, SaleState.ChangeDue
, "lastTransitionName");
var stateMachine = new StateMachine <Sale, SaleState, SaleEvent>(sale1 => sale1.State, (sale1, newState) => sale1.State = newState);
var sut = new StateConfiguration <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
sut.AddAutoForwardTransition(SaleEvent.ChangeGiven, SaleState.Complete, sale1 => true);
var parameters = new ExecutionParameters <Sale, SaleEvent>(SaleEvent.ChangeGiven, sale);
var autoTransitionResult = sut.ExecuteAutoTransition(parameters, transitionResult);
Assert.True(autoTransitionResult.WasTransitioned);
Assert.Equal(SaleState.Complete, sale.State);
Assert.Equal(SaleState.Complete, autoTransitionResult.CurrentState);
Assert.Equal(SaleState.ChangeDue, autoTransitionResult.PreviousState);
Assert.Equal(SaleState.Open, autoTransitionResult.StartingState);
}
