public void When_Predicate_Triggering_With_Matching_Value()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine<char, int, StateMachineContext<char>>(
sm => sm.DefineState('a')
.WithTrigger(1, (string x) => x == "yes", 'x')
.WithTrigger(1, (string x) => x == "no", 'y')
);
var originalContext = new StateMachineContext<char>('a');
Assert.Equal('x', stateMachine.Fire(originalContext, 1, "yes").GetState());
Assert.Equal('y', stateMachine.Fire(originalContext, 1, "no").GetState());
}
public void When_Predicate_Triggering_With_Matching_Value()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine <char, int, StateMachineContext <char> >(
sm => sm.DefineState('a')
.WithTrigger(1, (string x) => x == "yes", 'x')
.WithTrigger(1, (string x) => x == "no", 'y')
);
var originalContext = new StateMachineContext <char>('a');
Assert.Equal('x', stateMachine.Fire(originalContext, 1, "yes").GetState());
Assert.Equal('y', stateMachine.Fire(originalContext, 1, "no").GetState());
}
public void When_Trigger_Does_Not_Exist()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine<char, int, StateMachineContext<char>>(
sm => sm.DefineState('a')
.WithTrigger(1, 'b')
);
var originalContext = new StateMachineContext<char>('a');
Assert.Throws<InvalidTriggerException<char, int>>(() => stateMachine.Fire(originalContext, 2));
}
public void When_Trigger_Does_Not_Exist()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine <char, int, StateMachineContext <char> >(
sm => sm.DefineState('a')
.WithTrigger(1, 'b')
);
var originalContext = new StateMachineContext <char>('a');
Assert.Throws <InvalidTriggerException <char, int> >(() => stateMachine.Fire(originalContext, 2));
}
public void When_Predicate_Triggering_With_Non_Matching_Value()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine<char, int, StateMachineContext<char>>(
sm => sm.DefineState('a')
.WithTrigger(1, (string x) => x == "yes", 'x')
.WithTrigger(1, (string x) => x == "no", 'y')
);
var originalContext = new StateMachineContext<char>('a');
Assert.Throws<InvalidTriggerException<char, int>>(() => stateMachine.Fire(originalContext, 1, "maybe"));
}
public void When_Predicate_Triggering_With_Non_Matching_Value()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine <char, int, StateMachineContext <char> >(
sm => sm.DefineState('a')
.WithTrigger(1, (string x) => x == "yes", 'x')
.WithTrigger(1, (string x) => x == "no", 'y')
);
var originalContext = new StateMachineContext <char>('a');
Assert.Throws <InvalidTriggerException <char, int> >(() => stateMachine.Fire(originalContext, 1, "maybe"));
}
public void When_Trigger_Exists()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine<char, int, StateMachineContext<char>>(
sm => sm.DefineState('a')
.WithTrigger(1, 'b')
);
var originalContext = new StateMachineContext<char>('a');
var newContext = stateMachine.Fire(originalContext, 1);
Assert.Equal(newContext.GetState(), 'b');
}
public void When_Trigger_Exists()
{
var stateMachine = new StateMachineBuilder().CreateStateMachine <char, int, StateMachineContext <char> >(
sm => sm.DefineState('a')
.WithTrigger(1, 'b')
);
var originalContext = new StateMachineContext <char>('a');
var newContext = stateMachine.Fire(originalContext, 1);
Assert.Equal(newContext.GetState(), 'b');
}
public void EntryActionException()
{
var exception = new Exception();
var extension = A.Fake <IExtension <States, Events> >();
var stateContainer = new StateContainer <States, Events>();
stateContainer.Extensions.Add(extension);
var stateDefinitionBuilder = new StateDefinitionsBuilder <States, Events>();
stateDefinitionBuilder
.In(States.A)
.On(Events.B)
.Goto(States.B);
stateDefinitionBuilder
.In(States.B)
.ExecuteOnEntry(() => throw exception);
var stateDefinitions = stateDefinitionBuilder.Build();
var testee = new StateMachineBuilder <States, Events>()
.WithStateContainer(stateContainer)
.Build();
testee.TransitionExceptionThrown += (s, e) => { };
testee.EnterInitialState(stateContainer, stateContainer, stateDefinitions, States.A);
testee.Fire(Events.B, stateContainer, stateContainer, stateDefinitions);
A.CallTo(() => extension.HandlingEntryActionException(
stateContainer,
State(States.B),
Context(States.A, Events.B),
ref exception))
.MustHaveHappened();
A.CallTo(() => extension.HandledEntryActionException(
stateContainer,
State(States.B),
Context(States.A, Events.B),
exception))
.MustHaveHappened();
}
public void NotifiesAboutTransitions()
{
const States Source = States.A;
const States Target = States.B;
const Events Event = Events.B;
var extension = A.Fake <IExtension <States, Events> >();
var stateContainer = new StateContainer <States, Events>();
stateContainer.Extensions.Add(extension);
var stateDefinitionBuilder = new StateDefinitionsBuilder <States, Events>();
stateDefinitionBuilder
.In(Source)
.On(Event).Goto(Target);
var stateDefinitions = stateDefinitionBuilder.Build();
var testee = new StateMachineBuilder <States, Events>()
.WithStateContainer(stateContainer)
.Build();
testee.EnterInitialState(stateContainer, stateContainer, stateDefinitions, States.A);
testee.Fire(Event, stateContainer, stateContainer, stateDefinitions);
A.CallTo(() => extension.ExecutingTransition(
stateContainer,
A <ITransitionDefinition <States, Events> > .That.Matches(
t => t.Source.Id == Source && t.Target.Id == Target),
A <ITransitionContext <States, Events> > .That.Matches(
c => c.EventId.Value == Event && c.StateDefinition.Id == Source)))
.MustHaveHappened();
A.CallTo(() => extension.ExecutedTransition(
stateContainer,
A <ITransitionDefinition <States, Events> > .That.Matches(
t => t.Source.Id == Source && t.Target.Id == Target),
A <ITransitionContext <States, Events> > .That.Matches(
c => c.EventId.Value == Event && c.StateDefinition.Id == Source)))
.MustHaveHappened();
}
public void OverrideEntryActionException()
{
var exception = new Exception();
var overriddenException = new Exception();
var extension = A.Fake <IExtensionInternal <States, Events> >();
var overrideExtension = new OverrideExtension();
var stateContainer = new StateContainer <States, Events>();
stateContainer.Extensions.Add(extension);
stateContainer.Extensions.Add(overrideExtension);
var stateDefinitionBuilder = new StateDefinitionsBuilder <States, Events>();
stateDefinitionBuilder
.In(States.A)
.On(Events.B)
.Goto(States.B);
stateDefinitionBuilder
.In(States.B)
.ExecuteOnEntry(() => throw exception);
var stateDefinitions = stateDefinitionBuilder.Build();
var testee = new StateMachineBuilder <States, Events>()
.WithStateContainer(stateContainer)
.Build();
testee.TransitionExceptionThrown += (s, e) => { };
testee.EnterInitialState(stateContainer, stateDefinitions, States.A);
overrideExtension.OverriddenException = overriddenException;
testee.Fire(Events.B, stateContainer, stateContainer, stateDefinitions);
A.CallTo(() => extension.HandledEntryActionException(
A <IStateDefinition <States, Events> > ._,
A <ITransitionContext <States, Events> > ._,
overriddenException))
.MustHaveHappened();
}
public void Fire()
{
var extension = A.Fake <IExtension <States, Events> >();
var stateContainer = new StateContainer <States, Events>();
stateContainer.Extensions.Add(extension);
var stateDefinitionsBuilder = new StateDefinitionsBuilder <States, Events>();
stateDefinitionsBuilder
.In(States.A)
.On(Events.B)
.Goto(States.B);
var stateDefinitions = stateDefinitionsBuilder.Build();
var testee = new StateMachineBuilder <States, Events>()
.WithStateContainer(stateContainer)
.Build();
testee.EnterInitialState(stateContainer, stateContainer, stateDefinitions, States.A);
var eventId = Events.B;
var eventArgument = new object();
testee.Fire(eventId, eventArgument, stateContainer, stateContainer, stateDefinitions);
A.CallTo(() => extension.FiringEvent(stateContainer, ref eventId, ref eventArgument))
.MustHaveHappened();
A.CallTo(() => extension.FiredEvent(
stateContainer,
A <ITransitionContext <States, Events> > .That.Matches(
context =>
context.StateDefinition.Id == States.A &&
context.EventId.Value == eventId &&
context.EventArgument == eventArgument)))
.MustHaveHappened();
}
public void OverrideFiredEvent()
{
var extension = A.Fake <IExtension <States, Events> >();
var overrideExtension = new OverrideExtension();
var stateContainer = new StateContainer <States, Events>();
stateContainer.Extensions.Add(extension);
stateContainer.Extensions.Add(overrideExtension);
var stateDefinitionsBuilder = new StateDefinitionsBuilder <States, Events>();
stateDefinitionsBuilder
.In(States.A)
.On(Events.B).Goto(States.C)
.On(Events.C).Goto(States.C);
var stateDefinitions = stateDefinitionsBuilder.Build();
var testee = new StateMachineBuilder <States, Events>()
.WithStateContainer(stateContainer)
.Build();
testee.EnterInitialState(stateContainer, stateContainer, stateDefinitions, States.A);
const Events NewEvent = Events.C;
var newEventArgument = new object();
overrideExtension.OverriddenEvent = NewEvent;
overrideExtension.OverriddenEventArgument = newEventArgument;
testee.Fire(Events.B, stateContainer, stateContainer, stateDefinitions);
A.CallTo(() => extension.FiredEvent(
stateContainer,
A <ITransitionContext <States, Events> > .That.Matches(
c => c.EventId.Value == NewEvent && c.EventArgument == newEventArgument)))
.MustHaveHappened();
}