public void AddAutoFallbackTransition_throws_InvalidOperationException_if_AutoTransition_already_set()
{
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale => sale.State, (sale, newState) => sale.State = newState);
var sut = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
sut.AddAutoFallbackTransition(SaleEvent.Pay, SaleState.ChangeDue, (sale, _) => Task.FromResult(result: true));
Assert.Throws <InvalidOperationException>(() => sut.AddAutoFallbackTransition(SaleEvent.Pay, SaleState.ChangeDue, (sale, _) => Task.FromResult(result: true)));
}
public void AddAutoFallbackTransitionWRequest_throws_ArgumentNullException_if_Condition_null()
{
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale => sale.State, (sale, newState) => sale.State = newState);
var sut = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
Assert.Throws <ArgumentNullException>(() => sut.AddAutoFallbackTransition <string>(SaleEvent.Pay, SaleState.ChangeDue, condition: null));
}
public void AddAutoFallbackTransitionWRequest_adds_transition()
{
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale => sale.State, (sale, newState) => sale.State = newState);
var sut = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
sut.AddAutoFallbackTransition <string>(SaleEvent.Pay, SaleState.ChangeDue, condition: (sale, s, _) => Task.FromResult(true));
Assert.Single((stateMachine.ConfigureState(SaleState.ChangeDue) as StateConfigurationAsync <Sale, SaleState, SaleEvent>).AutoTransitions);
}