public async Task CanCancelWorkItem()
{
var workItemDto = new WorkItem();
workItemDto.Id = 2;
workItemDto.AdminGroupId = null;
workItemDto.CompletionMode = Api.Models.CompletionMode.AnyAssigned;
workItemDto.DescriptionMarkup = "<h1>header</h1>";
workItemDto.Location = "location";
workItemDto.Name = "name";
workItemDto.PatrolId = 1;
workItemDto.RecurringWorkItemId = null;
workItemDto.ScheduledAt = new DateTime(2001, 1, 1);
int userId = 50;
_workItemRepository.Setup(x => x.GetWorkItem(workItemDto.Id))
.Returns(Task.FromResult(workItemDto))
.Verifiable();
var now = new DateTimeOffset(2001, 1, 1, 0, 0, 0, new TimeSpan());
_systemClockMock.Setup(x => x.UtcNow).Returns(now);
_workItemRepository.Setup(x => x.UpdateWorkItem(It.Is <WorkItem>(y => y.CanceledAt == now.UtcDateTime)))
.Verifiable();
await _workItemService.CancelWorkItem(workItemDto.Id, userId);
_workItemRepository.Verify();
}