public void Loading(
StateMachineSaver <State> saver,
StateMachineLoader <State> loader,
State sourceState,
State targetState)
{
"establish a saved state machine with history"._(() =>
{
var machine = new PassiveStateMachine <State, Event>();
DefineMachine(machine);
machine.Initialize(State.A);
machine.Start();
machine.Fire(Event.S2); // set history of super state S
machine.Fire(Event.B); // set current state to B
saver = new StateMachineSaver <State>();
loader = new StateMachineLoader <State>();
machine.Save(saver);
});
"when state machine is loaded"._(() =>
{
loader.SetCurrentState(saver.CurrentStateId);
loader.SetHistoryStates(saver.HistoryStates);
var loadedMachine = new PassiveStateMachine <State, Event>();
DefineMachine(loadedMachine);
loadedMachine.Load(loader);
loadedMachine.TransitionCompleted += (sender, args) =>
{
sourceState = args.StateId;
targetState = args.NewStateId;
};
loadedMachine.Start();
loadedMachine.Fire(Event.S);
});
"it should reset current state"._(() =>
sourceState.Should().Be(State.B));
"it should reset all history states of super states"._(() =>
targetState.Should().Be(State.S2));
}
public void InitializeALoadedStateMachine(
PassiveStateMachine <int, int> machine,
Exception receivedException)
{
"establish a loaded state machine"._(() =>
{
machine = new PassiveStateMachine <int, int>();
machine.Load(A.Fake <IStateMachineLoader <int> >());
});
"when initializing the state machine"._(() =>
receivedException = Catch.Exception(() =>
machine.Initialize(0)));
"should throw an invalid operation exception"._(() =>
{
receivedException
.Should().BeAssignableTo <InvalidOperationException>();
receivedException.Message
.Should().Be(ExceptionMessages.StateMachineIsAlreadyInitialized);
});
}
