public void AddSuperState_throws_ArgumentOutOfRangeException_if_substate_is_already_superstate()
{
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale => sale.State, (sale, newState) => sale.State = newState);
var sut = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
var openStateConfig = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.Open, stateMachine);
//First time works fine
openStateConfig.AddSuperstate(sut);
//Second time blows up
Assert.Throws <ArgumentOutOfRangeException>(() => openStateConfig.AddSuperstate(sut));
}
public async Task FireTriggerAsync_executes_superState_if_currentState_not_successful()
{
var sale = new Sale(saleID: 96)
{
State = SaleState.ChangeDue
};
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale1 => sale1.State, (sale1, newState) => sale1.State = newState);
var openState = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.Open, stateMachine);
var changeDueState = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
var openStatePayTriggerFired = false;
openState
.AddTriggerAction(SaleEvent.Pay, (sale1, _) => { openStatePayTriggerFired = true; return(Task.CompletedTask); })
.AddTransition(SaleEvent.Pay, SaleState.Complete, name: "openStatePay");
changeDueState.AddSuperstate(openState);
var parameters = new ExecutionParameters <Sale, SaleEvent>(SaleEvent.Pay, sale);
var result = await changeDueState.FireTriggerAsync(parameters);
Assert.True(openStatePayTriggerFired);
Assert.True(result.WasTransitioned);
Assert.Equal(SaleState.Complete, sale.State);
Assert.Equal(SaleState.Complete, result.CurrentState);
Assert.Equal(SaleState.ChangeDue, result.PreviousState);
Assert.Equal(SaleState.ChangeDue, result.StartingState);
Assert.Equal("openStatePay", result.LastTransitionName);
}
public async Task ExecuteReentryActionAsync_executes_ReentryAction()
{
var sale = new Sale(saleID: 96)
{
State = SaleState.Open
};
var transitionResult = new StateTransitionResult <SaleState, SaleEvent>(SaleEvent.AddItem
, SaleState.Open
, SaleState.Open
, SaleState.Open
, "lastTransitionName");
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale1 => sale1.State, (sale1, newState) => sale1.State = newState);
var openState = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.Open, stateMachine);
var changeDueState = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
changeDueState.AddSuperstate(openState);
var changeDueEntryActionFromOpenFired = false;
changeDueState.AddReentryAction((sale1, _) => { changeDueEntryActionFromOpenFired = true; return(Task.CompletedTask); });
var parameters = new ExecutionParameters <Sale, SaleEvent>(SaleEvent.Pay, sale);
await changeDueState.ExecuteReentryActionAsync(parameters, transitionResult);
Assert.True(changeDueEntryActionFromOpenFired);
}
public void AddSuperState_throws_ArgumentOutOfRangeException_if_configuredState_already_superState()
{
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale => sale.State, (sale, newState) => sale.State = newState);
var changeDueConfig = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
var openStateConfig = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.Open, stateMachine);
changeDueConfig.AddSuperstate(openStateConfig);
Assert.Throws <ArgumentOutOfRangeException>(() => openStateConfig.AddSuperstate(changeDueConfig));
}
public void IsSubstateOf_returns_True_if_in_given_state_is_subState()
{
var stateMachine = new StateMachineAsync <Sale, SaleState, SaleEvent>(sale1 => sale1.State, (sale1, newState) => sale1.State = newState);
var openState = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.Open, stateMachine);
var changeDueState = new StateConfigurationAsync <Sale, SaleState, SaleEvent>(SaleState.ChangeDue, stateMachine);
changeDueState.AddSuperstate(openState);
Assert.True(changeDueState.IsSubstateOf(SaleState.Open));
Assert.False(openState.IsSubstateOf(SaleState.ChangeDue));
}