public async Task ExecuteAsync_transitions_based_on_StateFuncAsync()
{
var sut = new StateTransitionDynamicParameterizedAsync <Sale, SaleState, SaleEvent, string>(
stateAccessor: sale => sale.State
, stateMutator: (sale, newState) => sale.State = newState
, stateFuncAsync: (sale, stringParam, cancelToken) => Task.FromResult(SaleState.Complete)
, name: "test"
, priority: 1);
using (var cancellationSource = new CancellationTokenSource())
{
var sale = new Sale(saleID: 87)
{
State = SaleState.Open
};
var parameters = new ExecutionParameters <Sale, SaleEvent>(SaleEvent.Pay, sale, cancellationSource.Token, "request");
var result = await sut.ExecuteAsync(parameters);
Assert.Equal(SaleState.Complete, sale.State);
Assert.Equal(SaleState.Complete, result.CurrentState);
Assert.Equal(SaleState.Open, result.PreviousState);
Assert.False(result.WasCancelled);
}
}
public async Task ExecuteAsync_doesnt_send_notification_if_no_state_change()
{
var sut = new StateTransitionDynamicParameterizedAsync <Sale, SaleState, SaleEvent, string>(
stateAccessor: sale => sale.State
, stateMutator: (sale, newState) => sale.State = newState
, stateFuncAsync: (sale, stringParam, cancelToken) => Task.FromResult(SaleState.Open)
, name: "test"
, priority: 1);
var notificationReceived = false;
StateTransitionDynamicAsync <Sale, SaleState, SaleEvent> .OnTransitionedEvent += (sale, _) => notificationReceived = true;
using (var cancellationSource = new CancellationTokenSource())
{
var sale = new Sale(saleID: 87)
{
State = SaleState.Open
};
var parameters = new ExecutionParameters <Sale, SaleEvent>(SaleEvent.Pay, sale, cancellationSource.Token, "request");
await sut.ExecuteAsync(parameters);
Assert.False(notificationReceived);
}
}
public async Task ExecuteAsync_throws_ArgumentException_if_parameter_wrong_type()
{
var sut = new StateTransitionDynamicParameterizedAsync <Sale, SaleState, SaleEvent, string>(
stateAccessor: sale => sale.State
, stateMutator: (sale, newState) => sale.State = newState
, stateFuncAsync: (sale, stringParam, cancelToken) => Task.FromResult(SaleState.Complete)
, name: "test"
, priority: 1);
var testSale = new Sale(saleID: 87)
{
State = SaleState.Open
};
var parameters = new ExecutionParameters <Sale, SaleEvent>(SaleEvent.Pay, testSale, request: 1);
await Assert.ThrowsAsync <ArgumentException>(async() => await sut.ExecuteAsync(parameters));
}