public void Cancel(string reason)
{
if (_cancelled)
{
throw new InvalidOperationException("The concert has already been cancelled.");
}
Apply(ConcertEvents.Cancelled(_id, reason));
}
public void CancelledConcertCanNotBeCancelled()
{
new CommandScenarioFor <Concert>(Concert.Factory).
Given(
ConcertEvents.Planned(ConcertId),
ConcertEvents.Cancelled(ConcertId, "Guitars all smashed.")).
When(sut => sut.Cancel("Lead singer OD'ed.")).
AssertThrows(new InvalidOperationException("The concert has already been cancelled."));
}
public void PlannedConcertCanBeCancelled()
{
new CommandScenarioFor <Concert>(Concert.Factory).
Given(
ConcertEvents.Planned(ConcertId)).
When(sut => sut.Cancel("Lead singer OD'ed.")).
Then(
ConcertEvents.Cancelled(ConcertId, "Lead singer OD'ed.")).
Assert();
}
public void CancelledConcertCanNotStartTicketSale()
{
new FactoryScenarioFor <Concert>(Concert.Factory).
Given(
ConcertEvents.Planned(ConcertId),
ConcertEvents.Cancelled(ConcertId, "Lead singer OD'ed.")).
When(sut => sut.StartTicketSale(TicketSaleId, DateTimeOffset.UtcNow.Date)).
AssertThrows(
new InvalidOperationException("Starting a ticket sale for a cancelled concert is impossible."));
}