Spiral race with fixed radius extent.
Click next, polygon animation should be corrent.

Spiral race with dynamic radius extent.
Click next. Polygon animation should be corrent.

Angle gradient | clipPath animation
click next to check the transition animation in both bar and text.

No-animation
(1) Move dataZoom, position should have no transition animation but move normally.
(2) Use dataZoom hide a data item, and then show it.
(3) click button to setOption merge:
circle disappears and rect become red border black bg
(4) Repeat (2) after merged, should be correct.

Transition animation:
(1) Move dataZoom, position should have transition animation.
(2) Use dataZoom hide a data item, and then show it, ensure the fade in animation not be interupted.
(3) click button to setOption merge:
circle disappears and rect become red border black bg
(4) Repeat (2) after merged, should be correct.

(1) Move dataZoom, position should have transition animation.
(2) Use dataZoom hide a data item, and then show it, ensure the drop animation not be interupted.

Ensure enter animation by clipPath play normal (from left to right).

Move dataZoom, make sure the "raining-cloud" size animation smooth.

Move dataZoom:
position should no transition animation.
rotatino should has transition animation.

Move dataZoom:
transform animation should has been disabled.

Move dataZoom to "out" a item:
Leave animation on scale should be performed on rect and circle, but not on text.
The item should finally be removed.