public void MajorDefect_MoveToInProgress_ShouldBePossible()
        {
            //Arrange
            State newState = new New();
            var   defect   = new Defect(newState)
            {
                Priority = PriorityEnum.Major
            };

            //Act
            defect.MoveTo(new InProgress());
            //Assert
            defect.State.ShouldBeOfType(typeof(InProgress));
        }