public async void CreateTicket_BadRequest_NullPost() { TicketViewModel newTicket = null; var result = await _sut.CreateTicket(newTicket); var badReqResult = Assert.IsType <BadRequestObjectResult>(result); Assert.Equal($"Please provide details to create a ticket.", badReqResult.Value); _mockManager.Verify(x => x.CreateTicket( It.IsAny <TicketViewModel>()), Times.Never); }