Test possible values for 'calcMode="spline"'.
Two animations have been defined. For each animation, ruler lines and text are provided to help show what the correct behavior is. The black text and ruler lines help show the sizes and movement of the rectangles over time.
For calcMode='spline' in this test case, the initial rate of change is defined to be the same as linear, but the last jump has an ease-in/ease-out effect where the change is slower at the start and end but faster in the middle.
Run the test. No interaction required.
The test is passed if the two orange rects are animated so that the bottom part of each rectangle is at the position indicated by the ruler lines at the particular time noted next to each ruler line. Between two noted times the bottom part of each rect must be between the two corresponding ruler lines. The bottom of the left rectangles and the right rectangle must always be the same throughout the animation.