public void FluentStateMachineBuilder_AfterExit_DefiningState_AddsEvent()
{
var loggedEvents = new List <string>();
Action <string, TransitionEventArgs <StubStateModel> > logEvent = (message, e) =>
{
loggedEvents.Add(string.Format("{0} from {1} to {2} on {3}",
message, e.From, e.To, e.Trigger));
};
var machine = FluentStateMachine <StubStateModel> .Describe()
.State("s1")
.AfterExit(e => logEvent("AfterExit", e))
.TransitionsTo("s2").On("t")
.Initiates()
.State("s2")
.AfterExit(e => logEvent("AfterExit", e))
.TransitionsTo("s1").On("t")
.Compile();
var model = new StubStateModel();
model.CurrentState = machine.InitialState;
machine.Trigger("t", model);
Assert.Equal("s2", model.CurrentState.ToString());
Assert.Equal(1, loggedEvents.Count());
Assert.Equal("AfterExit from s1 to s2 on t", loggedEvents[0]);
}
public void FluentStateMachineBuilder_GloballyTransitionsTo_NullState_ThrowsNullEx()
{
Assert.Throws <ArgumentNullException>(() =>
FluentStateMachine <StubStateModel> .Describe()
.State("s1")
.GloballyTransitionsTo(null));
}
public void FluentStateMachine_Describe_ReturnsNewBuilderApi()
{
var result = FluentStateMachine <StubStateModel> .Describe();
var result2 = FluentStateMachine <StubStateModel> .Describe();
Assert.NotNull(result);
Assert.NotNull(result);
Assert.NotSame(result, result2);
}
public void FluentStateMachineBuilder_State_ValidParms_CreatesNewState()
{
var machine = FluentStateMachine <StubStateModel> .Describe()
.State("s1")
.Initiates()
.Compile();
var model = new StubStateModel();
model.CurrentState = machine.InitialState;
Assert.Equal("s1", model.CurrentState.ToString());
}
public void FluentStateMachineBuilder_On_SetsTriggerForATransition()
{
var machine = FluentStateMachine <StubStateModel> .Describe()
.State("s1")
.TransitionsTo("s2").On("t")
.Initiates()
.State("s2")
.TransitionsTo("s1").On("t")
.Compile();
var model = new StubStateModel();
model.CurrentState = machine.InitialState;
Assert.Equal("s1", model.CurrentState.ToString());
machine.Trigger("t", model);
Assert.Equal("s2", model.CurrentState.ToString());
}
public void FluentStateMachineBuilder_When_WhileDefTrans_AddsGuardToTransition()
{
var machine = FluentStateMachine <StubStateModel> .Describe()
.State("s1")
.Initiates()
.TransitionsTo("s2").On("t").When(m => false)
.TransitionsTo("s3").On("t").When(m => true)
.State("s2")
.State("s3")
.Compile();
var model = new StubStateModel();
model.CurrentState = machine.InitialState;
Assert.Equal("s1", model.CurrentState.ToString());
machine.Trigger("t", model);
Assert.Equal("s3", model.CurrentState.ToString());
}
public void FluentStateMachineBuilder_DefiningCallbacksOnAll_AllCallbacksCalledInOrder()
{
var loggedEvents = new List <string>();
Action <string, TransitionEventArgs <StubStateModel> > logEvent = (message, e) =>
{
loggedEvents.Add(string.Format("{0} from {1} to {2} on {3}",
message, e.From, e.To, e.Trigger));
};
var machine = FluentStateMachine <StubStateModel> .Describe()
.State("s1")
.BeforeEntry(e => logEvent("beforeEntry", e))
.AfterEntry(e => logEvent("afterEntry", e))
.BeforeExit(e => logEvent("beforeExit", e))
.AfterExit(e => logEvent("afterExit", e))
.TransitionsTo("s2").On("t")
.Initiates()
.State("s2")
.BeforeEntry(e => logEvent("beforeEntry", e))
.AfterEntry(e => logEvent("afterEntry", e))
.BeforeExit(e => logEvent("beforeExit", e))
.AfterExit(e => logEvent("afterExit", e))
.TransitionsTo("s1").On("t")
.BeforeTransition(e => logEvent("beforeTransition", e))
.AfterTransition(e => logEvent("afterTransition", e))
.Compile();
var model = new StubStateModel();
model.CurrentState = machine.InitialState;
machine.Trigger("t", model);
Assert.Equal("s2", model.CurrentState.ToString());
Assert.Equal(6, loggedEvents.Count());
Assert.Equal("beforeTransition from s1 to s2 on t", loggedEvents[0]);
Assert.Equal("beforeExit from s1 to s2 on t", loggedEvents[1]);
Assert.Equal("beforeEntry from s1 to s2 on t", loggedEvents[2]);
Assert.Equal("afterExit from s1 to s2 on t", loggedEvents[3]);
Assert.Equal("afterEntry from s1 to s2 on t", loggedEvents[4]);
Assert.Equal("afterTransition from s1 to s2 on t", loggedEvents[5]);
}
