public void StartOnInstantiation()
{
TestStateMachine stateMachine = new TestStateMachine();
stateMachine.StartOnInstantiation = true;
Assert.Throws <StateMachineStoppedException>(() => stateMachine.GetState());
Assert.That(stateMachine.IsStarted(), Is.EqualTo(false));
stateMachine.Start();
Assert.That(stateMachine.GetState(), Is.EqualTo(StateMachineTestStates.Initial));
Assert.That(stateMachine.IsStarted(), Is.EqualTo(true));
}
public void ChangeState()
{
TestStateMachine stateMachine = new TestStateMachine();
stateMachine.Start();
stateMachine.StartMachine();
Assert.That(stateMachine.GetState(), Is.EqualTo(StateMachineTestStates.Initial));
stateMachine.ChangeState(StateMachineTestStates.State);
Assert.That(stateMachine.GetState(), Is.EqualTo(StateMachineTestStates.State));
stateMachine.StopMachine();
stateMachine.StartMachine();
Assert.That(stateMachine.GetState(), Is.EqualTo(StateMachineTestStates.Initial));
}
public void StateHistoryTrim()
{
var sm = new TestStateMachine();
sm.State<IdleState>()
.On(TelephoneTrigger.PickingUpPhone).GoesTo<CountingState>();
sm.State<CountingState>()
.On(TelephoneTrigger.HangingUp).GoesTo<IdleState>();
sm.Start();
// Transition a lot of times
for (int a = 0;a<1000;a++)
{
sm.Trigger(TelephoneTrigger.PickingUpPhone);
sm.Trigger(TelephoneTrigger.HangingUp);
}
// The state history should be 90-100 items
Assert.IsTrue((sm.StateHistory.Length >= 90) && (sm.StateHistory.Length <= 100),
string.Format("{0} states in history", sm.StateHistory.Length));
sm.StateHistoryTrimThreshold = 50;
// The state history should be 45-50 items
Assert.IsTrue((sm.StateHistory.Length >= 45) && (sm.StateHistory.Length <= 50),
string.Format("{0} states in history", sm.StateHistory.Length));
}
public void StopCallsExit()
{
var sm = new TestStateMachine();
sm.State<IdleState>()
.On(TelephoneTrigger.PickingUpPhone).GoesTo<CountingState>();
sm.State<CountingState>()
.On(TelephoneTrigger.HangingUp).GoesTo<IdleState>();
sm.Start();
sm.Trigger(TelephoneTrigger.PickingUpPhone);
sm.Trigger(TelephoneTrigger.HangingUp);
sm.Trigger(TelephoneTrigger.PickingUpPhone);
Assert.IsTrue((sm.EnteringCount == 2) && (sm.ExitingCount == 1), "Unexpected EnteringCount / ExitingCount!");
sm.Stop();
Assert.IsTrue((sm.EnteringCount == 2) && (sm.ExitingCount == 2), "Unexpected EnteringCount / ExitingCount on Stop!");
}
public void InstantiateStatePerTransition()
{
var sm = new TestStateMachine();
sm.StateInstantiationMode = StateInstantiationMode.PerTransition;
sm.State<IdleState>()
.On(TelephoneTrigger.PickingUpPhone).GoesTo<CountingState>();
sm.State<CountingState>()
.On(TelephoneTrigger.HangingUp).GoesTo<IdleState>();
sm.Start();
// Goto CountingState
sm.Trigger(TelephoneTrigger.PickingUpPhone);
// Go back
sm.Trigger(TelephoneTrigger.HangingUp);
// Goto CountingState again
sm.Trigger(TelephoneTrigger.PickingUpPhone);
// The CurrentState should have been freshly created, meaning that CountingState.EnteringSelfCount should be 1
Assert.IsTrue(
(sm.CurrentState is CountingState) && ((sm.CurrentState as CountingState).EnteringSelfCount == 1),
string.Format("Unexpected EnteringSelfCount!"));
}
public void VerifyStateSingletons()
{
var sm = new TestStateMachine();
// No setting of the value here, Singleton should be the default.
sm.State<IdleState>()
.On(TelephoneTrigger.PickingUpPhone).GoesTo<CountingState>();
sm.State<CountingState>()
.On(TelephoneTrigger.HangingUp).GoesTo<IdleState>();
sm.Start();
// Goto CountingState
sm.Trigger(TelephoneTrigger.PickingUpPhone);
// Go back
sm.Trigger(TelephoneTrigger.HangingUp);
// Goto CountingState again
sm.Trigger(TelephoneTrigger.PickingUpPhone);
// The CurrentState should have been freshly created, meaning that CountingState.EnteringSelfCount should be 1
Assert.IsTrue(
(sm.CurrentState is CountingState) && ((sm.CurrentState as CountingState).EnteringSelfCount == 2),
string.Format("Unexpected EnteringSelfCount!"));
}
public void ConfigurationReentrantState()
{
var sm = new TestStateMachine();
sm.State<IdleState>()
.On(TelephoneTrigger.PickingUpPhone).GoesTo<CountingState>();
sm.State<CountingState>()
.On(TelephoneTrigger.DialedNumber).GoesTo<CountingState>()
.On(TelephoneTrigger.HangingUp).GoesTo<IdleState>();
sm.Start();
// Goto CountingState, EnteringCount should be 1
sm.Trigger(TelephoneTrigger.PickingUpPhone);
Assert.IsTrue(sm.EnteringCount == 1, "EnteringCount != 1");
// Reentry
sm.Trigger(TelephoneTrigger.DialedNumber);
Assert.IsTrue((sm.EnteringCount == 2) && (sm.ExitingCount == 1), "EnteringCount != 2 || ExitingCount != 1");
// Back to Idle
sm.Trigger(TelephoneTrigger.HangingUp);
Assert.IsTrue((sm.EnteringCount == 2) && (sm.ExitingCount == 2), "EnteringCount != 2 || ExitingCount != 2");
}
public void UsingImplicitContext()
{
var sm = new TestStateMachine();
sm.CurrentDate = DateTime.MinValue.Date;
sm.State<IdleState>()
.On(TelephoneTrigger.PickingUpPhone).GoesTo<DateReportingState>();
sm.Start();
sm.Trigger(TelephoneTrigger.PickingUpPhone);
// The state should've been able to use the default context (the state machine) to set its CurrentDate property
Assert.IsTrue(sm.CurrentDate.Equals(DateTime.Now.Date), "Wrong date in state machine!");
}