public override void SetUp()
        {
            m_Cam = CreateGameObject("MainCamera", typeof(Camera), typeof(CinemachineBrain)).GetComponent <Camera>();
            var vcamHolder = CreateGameObject("CM Vcam", typeof(CinemachineVirtualCamera), typeof(CinemachineConfiner2D));

            m_Vcam             = vcamHolder.GetComponent <CinemachineVirtualCamera>();
            m_Confiner2D       = vcamHolder.GetComponent <CinemachineConfiner2D>();
            m_Vcam.Priority    = 100;
            m_Cam.orthographic = true;
            m_Vcam.AddExtension(m_Confiner2D);

            m_Vcam.m_Lens.OrthographicSize = UnityVectorExtensions.Epsilon;

            base.SetUp();
        }