public void LoadingNonInitializedStateMachine(
PassiveStateMachine <State, Event> loadedMachine)
{
"when a not started state machine is loaded".x(() =>
{
var loader = new StateMachineLoader <State>();
loader.SetCurrentState(Initializable <State> .UnInitialized());
loader.SetHistoryStates(new Dictionary <State, State>());
var stateMachineDefinitionBuilder = new StateMachineDefinitionBuilder <State, Event>();
SetupStates(stateMachineDefinitionBuilder);
loadedMachine = stateMachineDefinitionBuilder
.WithInitialState(State.A)
.Build()
.CreatePassiveStateMachine();
loadedMachine.Load(loader);
});
"it should not be initialized already".x(() =>
{
var stateMachineSaver = new StateMachineSaver <State>();
loadedMachine.Save(stateMachineSaver);
stateMachineSaver
.CurrentStateId
.IsInitialized
.Should()
.BeFalse();
});
}
public void InitializeALoadedStateMachine(
PassiveStateMachine <int, int> machine,
Exception receivedException)
{
"establish a loaded initialized state machine".x(() =>
{
machine = new PassiveStateMachine <int, int>();
var loader = new Persisting.StateMachineLoader <int>();
loader.SetCurrentState(new Initializable <int> {
Value = 1
});
loader.SetHistoryStates(new Dictionary <int, int>());
machine.Load(loader);
});
"when initializing the state machine".x(() =>
receivedException = Catch.Exception(() =>
machine.Initialize(0)));
"should throw an invalid operation exception".x(() =>
{
receivedException
.Should().BeAssignableTo <InvalidOperationException>()
.Which.Message
.Should().Be(ExceptionMessages.StateMachineIsAlreadyInitialized);
});
}
public void Loading(
StateMachineSaver <State> saver,
StateMachineLoader <State> loader,
FakeExtension extension,
State sourceState,
State targetState)
{
"establish a saved state machine with history".x(() =>
{
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".x(() =>
{
loader.SetCurrentState(saver.CurrentStateId);
loader.SetHistoryStates(saver.HistoryStates);
extension = new FakeExtension();
var loadedMachine = new PassiveStateMachine <State, Event>();
loadedMachine.AddExtension(extension);
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".x(() =>
sourceState.Should().Be(State.B));
"it should reset all history states of super states".x(() =>
targetState.Should().Be(State.S2));
"it should notify extensions".x(()
=> extension.LoadedCurrentState
.Should().BeEquivalentTo(State.B));
}
public void LoadingEvents(
PassiveStateMachine <string, int> machine)
{
"establish a state machine".x(() =>
{
var stateMachineDefinitionBuilder = new StateMachineDefinitionBuilder <string, int>();
stateMachineDefinitionBuilder
.In("A")
.On(1)
.Goto("B");
stateMachineDefinitionBuilder
.In("B")
.On(2)
.Goto("C");
stateMachineDefinitionBuilder
.In("C")
.On(3)
.Goto("A");
machine = stateMachineDefinitionBuilder
.WithInitialState("A")
.Build()
.CreatePassiveStateMachine();
});
"when it is loaded with Events".x(() =>
{
var loader = new StateMachineLoader <string, int>();
loader.SetEvents(new List <EventInformation <int> >
{
new EventInformation <int>(1, null),
new EventInformation <int>(2, null),
});
machine.Load(loader);
});
"it should process those events".x(() =>
{
var transitionRecords = new List <TransitionRecord>();
machine.TransitionCompleted += (sender, args) =>
transitionRecords.Add(
new TransitionRecord(args.EventId, args.StateId, args.NewStateId));
machine.Start();
transitionRecords
.Should()
.HaveCount(2)
.And
.IsEquivalentInOrder(new List <TransitionRecord>
{
new TransitionRecord(1, "A", "B"),
new TransitionRecord(2, "B", "C")
});
});
}
public void LoadingNonInitializedStateMachine(
PassiveStateMachine <State, Event> loadedMachine)
{
"when a non-initialized state machine is loaded".x(() =>
{
var loader = new StateMachineLoader <State>();
loader.SetCurrentState(new Initializable <State>());
loader.SetHistoryStates(new Dictionary <State, State>());
loadedMachine = new PassiveStateMachine <State, Event>();
DefineMachine(loadedMachine);
loadedMachine.Load(loader);
});
"it should not be initialized already".x(() =>
{
Action act = () => loadedMachine.Initialize(State.S);
act.Should().NotThrow();
});
}
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);
});
}
public void LoadingAnInitializedStateMachine(
PassiveStateMachine <string, int> machine,
Exception receivedException)
{
"establish a started state machine".x(() =>
{
var stateMachineDefinitionBuilder = new StateMachineDefinitionBuilder <string, int>();
stateMachineDefinitionBuilder.In("initial");
machine = stateMachineDefinitionBuilder
.WithInitialState("initial")
.Build()
.CreatePassiveStateMachine();
machine.Start();
});
"when state machine is loaded".x(() =>
receivedException = Catch.Exception(() => machine.Load(A.Fake <IStateMachineLoader <string> >())));
"it should throw invalid operation exception".x(() =>
{
receivedException.Should().BeOfType <InvalidOperationException>();
receivedException.Message.Should().Be(ExceptionMessages.StateMachineIsAlreadyInitialized);
});
}
