public void TestInProgressToCompletedActualOwner()
        {
            IdentityId actualId = new IdentityId();
            ILoggingService loggingService = SetupLoggerMock(new List<TaskHistoryEvent>());
            Task task = new Task(
                         new TaskId(), TaskStatus.InProgress, string.Empty,
                         string.Empty, Priority.Normal, false,
                         DateTime.UtcNow, new IdentityId().GetIdentity(),
                         DateTime.UtcNow, null, actualId.GetIdentity())
            {
                LoggingService = loggingService
            };

            Assert.IsNotNull(task);
            IPrincipal actualOwner = new ClaimsPrincipal(actualId.GetIdentity());
            Thread.CurrentPrincipal = actualOwner;
            task.Complete();
            Assert.AreEqual(TaskStatus.Completed, task.Status);
            Assert.AreEqual(actualId.GetIdentity(), task.ActualOwner);
            Assert.IsNotNull(task.History);
            Assert.AreEqual(1, task.History.Count());
            TaskHistoryEvent history = task.History.ElementAt(0);
            Assert.IsNotNull(history);
            Assert.AreEqual(TaskStatus.InProgress, history.OldStatus);
            Assert.AreEqual(TaskStatus.Completed, history.NewStatus);
            Assert.AreEqual(actualId, history.UserId);
        }