public void AddTriggerActionWRequest_throws_InvalidOperationException_if_already_set()
{
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);
sut.AddTriggerAction <string>(SaleEvent.Pay, (sale, stringParam, _) => Task.CompletedTask);
Assert.Throws <InvalidOperationException>(() => sut.AddTriggerAction <string>(SaleEvent.Pay, (sale, stringParam, _) => Task.CompletedTask));
}
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 void AddTriggerActionWRequest_throws_ArgumentNullException_if_Action_null()
{
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);
Assert.Throws <ArgumentNullException>(() => sut.AddTriggerAction <string>(SaleEvent.AddItem, action: null));
}