public void TaskCancelledEvent()
{
var taskId = Guid.NewGuid();
var e = new TaskCancelledEvent()
{
DateOfCancellation = DateTime.Now,
TaskId = taskId
};
var task = OTask.Factory.Create(taskId, "Fake");
task.ApplyEvent(e);
Assert.Equal(e.DateOfCancellation, task.DateOfCancellation);
}
public void Cancel(Guid userId)
{
if (userId != this.CreatorId)
{
throw new ArgumentException("A task can be cancelled by its creator only", nameof(userId));
}
if (this.DateOfCompletion.HasValue)
{
throw new InvalidOperationException("Can't cancel a closed task.");
}
if (this.DateOfCancellation.HasValue)
{
throw new InvalidOperationException("Can't cancel a task twice.");
}
var e = new TaskCancelledEvent()
{
TaskId = this.Id,
DateOfCancellation = DateTime.Now,
UserId = userId
};
RaiseEvent(e);
}
public void ApplyEvent(TaskCancelledEvent @event)
{
this.DateOfCancellation = @event.DateOfCancellation;
}
