(from 10px 10px, arc to 10px -20px of 15px 25px ccw small, arc by 20px -10px of 25px 25px rotate 150deg cw large, arc to 25px 20px of 10px 5px cw small)'},
        {at: 1, expect: 'shape(from 15px 15px, arc to 5px -25px of 20px 30px, arc by 25px -15px of 20px 20px rotate 270deg cw small, arc to 25px 20px of 10px 5px cw small)'},
        {at: 1.5, expect: 'shape(from 20px 20px, arc to 0px -30px of 25px 35px ccw small, arc by 30px -20px of 15px 15px rotate 390deg cw small, arc to 25px 20px of 10px 5px cw smal