<!DOCTYPE html>
<meta charset="UTF-8">
<style>
.target {
  color: white;
  width: 100px;
  height: 100px;
  background-color: black;
  display: inline-block;
  overflow: hidden;
}
.replica {
  background-color: green;
}
.target div {
  width: 10px;
  height: 10px;
  display: inline-block;
  background: orange;
  margin: 1px;
}
.test {
  overflow: hidden;
}
</style>
<body>
<template id="target-template">
<div></div>
</template>
<script src="resources/interpolation-test.js"></script>
<script>

// Perspective
assertInterpolation({
  property: '-webkit-transform',
  from: 'perspective(400px)',
  to: 'perspective(500px)'
}, [
  {at: -1, is: 'perspective(300px)'},
  {at: 0, is: 'perspective(400px)'},
  {at: 0.25, is: 'perspective(425px)'},
  {at: 0.75, is: 'perspective(475px)'},
  {at: 1, is: 'perspective(500px)'},
  {at: 2, is: 'perspective(600px)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewX(10rad) perspective(400px)',
  to: 'skewX(20rad) perspective(500px)'
}, [
  {at: -1, is: 'skewX(0rad) perspective(300px)'},
  {at: 0, is: 'skewX(10rad) perspective(400px)'},
  {at: 0.25, is: 'skewX(12.5rad) perspective(425px)'},
  {at: 0.75, is: 'skewX(17.5rad) perspective(475px)'},
  {at: 1, is: 'skewX(20rad) perspective(500px)'},
  {at: 2, is: 'skewX(30rad) perspective(600px)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scaleZ(1) perspective(400px)',
  to: 'scaleZ(2) perspective(500px)'
}, [
  {at: -1, is: 'scaleZ(0) perspective(300px)'},
  {at: 0, is: 'scaleZ(1) perspective(400px)'},
  {at: 0.25, is: 'scaleZ(1.25) perspective(425px)'},
  {at: 0.75, is: 'scaleZ(1.75) perspective(475px)'},
  {at: 1, is: 'scaleZ(2) perspective(500px)'},
  {at: 2, is: 'scaleZ(3) perspective(600px)'},
]);

// Rotate
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotate(30deg)',
  to: 'rotate(330deg)'
}, [
  {at: -1, is: 'rotate(-270deg)'},
  {at: 0, is: 'rotate(30deg)'},
  {at: 0.25, is: 'rotate(105deg)'},
  {at: 0.75, is: 'rotate(255deg)'},
  {at: 1, is: 'rotate(330deg)'},
  {at: 2, is: 'rotate(630deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotateX(0deg)',
  to: 'rotateX(700deg)'
}, [
  {at: -1, is: 'rotateX(-700deg)'},
  {at: 0, is: 'rotateX(0deg)'},
  {at: 0.25, is: 'rotateX(175deg)'},
  {at: 0.75, is: 'rotateX(525deg)'},
  {at: 1, is: 'rotateX(700deg)'},
  {at: 2, is: 'rotateX(1400deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotateY(0deg)',
  to: 'rotateY(800deg)'
}, [
  {at: -1, is: 'rotateY(-800deg)'},
  {at: 0, is: 'rotateY(0deg)'},
  {at: 0.25, is: 'rotateY(200deg)'},
  {at: 0.75, is: 'rotateY(600deg)'},
  {at: 1, is: 'rotateY(800deg)'},
  {at: 2, is: 'rotateY(1600deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotateZ(0deg)',
  to: 'rotateZ(900deg)'
}, [
  {at: -1, is: 'rotateZ(-900deg)'},
  {at: 0, is: 'rotateZ(0deg)'},
  {at: 0.25, is: 'rotateZ(225deg)'},
  {at: 0.75, is: 'rotateZ(675deg)'},
  {at: 1, is: 'rotateZ(900deg)'},
  {at: 2, is: 'rotateZ(1800deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotate3d(7, 8, 9, 100deg)',
  to: 'rotate3d(7, 8, 9, 260deg)'
}, [
  {at: -1, is: 'rotate3d(7, 8, 9, -60deg)'},
  {at: 0, is: 'rotate3d(7, 8, 9, 100deg)'},
  {at: 0.25, is: 'rotate3d(7, 8, 9, 140deg)'},
  {at: 0.75, is: 'rotate3d(7, 8, 9, 220deg)'},
  {at: 1, is: 'rotate3d(7, 8, 9, 260deg)'},
  {at: 2, is: 'rotate3d(7, 8, 9, 420deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'none',
  to: 'rotate(90deg)'
}, [
  {at: -1, is: 'rotate(-90deg)'},
  {at: 0, is: 'none'},
  {at: 0.25, is: 'rotate(22.5deg)'},
  {at: 0.75, is: 'rotate(67.5deg)'},
  {at: 1, is: 'rotate(90deg)'},
  {at: 2, is: 'rotate(180deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotate(90deg)',
  to: 'none'
}, [
  {at: -1, is: 'rotate(180deg)'},
  {at: 0, is: 'rotate(90deg)'},
  {at: 0.25, is: 'rotate(67.5deg)'},
  {at: 0.75, is: 'rotate(22.5deg)'},
  {at: 1, is: 'none'},
  {at: 2, is: 'rotate(-90deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotateX(0deg) rotateY(0deg) rotateZ(0deg)',
  to: 'rotateX(700deg) rotateY(800deg) rotateZ(900deg)'
}, [
  {at: -1, is: 'rotateX(-700deg) rotateY(-800deg) rotateZ(-900deg)'},
  {at: 0, is: 'rotateX(0deg) rotateY(0deg) rotateZ(0deg)'},
  {at: 0.25, is: 'rotateX(175deg) rotateY(200deg) rotateZ(225deg)'},
  {at: 0.75, is: 'rotateX(525deg) rotateY(600deg) rotateZ(675deg)'},
  {at: 1, is: 'rotateX(700deg) rotateY(800deg) rotateZ(900deg)'},
  {at: 2, is: 'rotateX(1400deg) rotateY(1600deg) rotateZ(1800deg)'},
]);

// Scale
assertInterpolation({
  property: '-webkit-transform',
  from: 'scale(10, 5)',
  to: 'scale(20, 9)'
}, [
  {at: -1, is: 'scale(0, 1)'},
  {at: 0, is: 'scale(10, 5)'},
  {at: 0.25, is: 'scale(12.5, 6)'},
  {at: 0.75, is: 'scale(17.5, 8)'},
  {at: 1, is: 'scale(20, 9)'},
  {at: 2, is: 'scale(30, 13)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scaleX(10)',
  to: 'scaleX(20)'
}, [
  {at: -1, is: 'scaleX(0)'},
  {at: 0, is: 'scaleX(10)'},
  {at: 0.25, is: 'scaleX(12.5)'},
  {at: 0.75, is: 'scaleX(17.5)'},
  {at: 1, is: 'scaleX(20)'},
  {at: 2, is: 'scaleX(30)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scaleY(5)',
  to: 'scaleY(9)'
}, [
  {at: -1, is: 'scaleY(1)'},
  {at: 0, is: 'scaleY(5)'},
  {at: 0.25, is: 'scaleY(6)'},
  {at: 0.75, is: 'scaleY(8)'},
  {at: 1, is: 'scaleY(9)'},
  {at: 2, is: 'scaleY(13)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scaleZ(1)',
  to: 'scaleZ(2)'
}, [
  {at: -1, is: 'scaleZ(0)'},
  {at: 0, is: 'scaleZ(1)'},
  {at: 0.25, is: 'scaleZ(1.25)'},
  {at: 0.75, is: 'scaleZ(1.75)'},
  {at: 1, is: 'scaleZ(2)'},
  {at: 2, is: 'scaleZ(3)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scale3d(10, 0.5, 1)',
  to: 'scale3d(20, 1, 2)'
}, [
  {at: -1, is: 'scale3d(0, 0, 0)'},
  {at: 0, is: 'scale3d(10, 0.5, 1)'},
  {at: 0.25, is: 'scale3d(12.5, 0.625, 1.25)'},
  {at: 0.75, is: 'scale3d(17.5, 0.875, 1.75)'},
  {at: 1, is: 'scale3d(20, 1, 2)'},
  {at: 2, is: 'scale3d(30, 1.5, 3)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'none',
  to: 'scale3d(2, 3, 5)'
}, [
  {at: -1, is: 'scale3d(0, -1, -3)'},
  {at: 0, is: 'none'},
  {at: 0.25, is: 'scale3d(1.25, 1.5, 2)'},
  {at: 0.75, is: 'scale3d(1.75, 2.5, 4)'},
  {at: 1, is: 'scale3d(2, 3, 5)'},
  {at: 2, is: 'scale3d(3, 5, 9)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scale3d(2, 3, 5)',
  to: 'none'
}, [
  {at: -1, is: 'scale3d(3, 5, 9)'},
  {at: 0, is: 'scale3d(2, 3, 5)'},
  {at: 0.25, is: 'scale3d(1.75, 2.5, 4)'},
  {at: 0.75, is: 'scale3d(1.25, 1.5, 2)'},
  {at: 1, is: 'none'},
  {at: 2, is: 'scale3d(0, -1, -3)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scaleX(10) scaleY(0.5) scaleZ(1)',
  to: 'scaleX(20) scaleY(1) scaleZ(2)'
}, [
  {at: -1, is: 'scaleX(0) scaleY(0) scaleZ(0)'},
  {at: 0, is: 'scaleX(10) scaleY(0.5) scaleZ(1)'},
  {at: 0.25, is: 'scaleX(12.5) scaleY(0.625) scaleZ(1.25)'},
  {at: 0.75, is: 'scaleX(17.5) scaleY(0.875) scaleZ(1.75)'},
  {at: 1, is: 'scaleX(20) scaleY(1) scaleZ(2)'},
  {at: 2, is: 'scaleX(30) scaleY(1.5) scaleZ(3)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewX(10rad) scaleZ(1)',
  to: 'skewX(20rad) scaleZ(2)'
}, [
  {at: -1, is: 'skewX(0rad) scaleZ(0)'},
  {at: 0, is: 'skewX(10rad) scaleZ(1)'},
  {at: 0.25, is: 'skewX(12.5rad) scaleZ(1.25)'},
  {at: 0.75, is: 'skewX(17.5rad) scaleZ(1.75)'},
  {at: 1, is: 'skewX(20rad) scaleZ(2)'},
  {at: 2, is: 'skewX(30rad) scaleZ(3)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewX(10rad)',
  to: 'skewX(20rad) scaleZ(2)'
}, [
  {at: -1, is: 'matrix3d(1, 0, 0, 0, -0.940439289306569, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1)'},
  {at: 0, is: 'skewX(10rad)'},
  {at: 0.25, is: 'matrix3d(1, 0, 0, 0, 1.0455608566505006, 1, 0, 0, 0, 0, 1.25, 0, 0, 0, 0, 1)'},
  {at: 0.75, is: 'matrix3d(1, 0, 0, 0, 1.8399609150333283, 1, 0, 0, 0, 0, 1.75, 0, 0, 0, 0, 1)'},
  {at: 1, is: 'skewX(20rad) scaleZ(2)'},
  {at: 2, is: 'matrix3d(1, 0, 0, 0, 3.825961060990398, 1, 0, 0, 0, 0, 3, 0, 0, 0, 0, 1)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'scaleZ(3) perspective(400px)',
  to: 'scaleZ(4) skewX(1rad) perspective(500px)'
}, [
  {at: -1, is: 'matrix3d(1, 0, 0, 0, -1.5574077246549023, 1, 0, 0, 0, 0, 2, -0.002333333333333333, 0, 0, 0, 1)'},
  {at: 0, is: 'matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 3, -0.0025, 0, 0, 0, 1)'},
  {at: 0.25, is: 'matrix3d(1, 0, 0, 0, 0.3893519311637256, 1, 0, 0, 0, 0, 3.25, -0.0024375, 0, 0, 0, 1)'},
  {at: 0.75, is: 'matrix3d(1, 0, 0, 0, 1.1680557934911766, 1, 0, 0, 0, 0, 3.75, -0.0021874999999999998, 0, 0, 0, 1)'},
  {at: 1, is: 'matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, 0, 0, 4, -0.002, 0, 0, 0, 1)'},
  {at: 2, is: 'matrix3d(1, 0, 0, 0, 3.1148154493098046, 1, 0, 0, 0, 0, 5, -0.0008333333333333337, 0, 0, 0, 1)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translateY(70%) scaleZ(1)',
  to: 'translateY(90%) scaleZ(2)'
}, [
  {at: -1, is: 'translateY(50%) scaleZ(0)'},
  {at: 0, is: 'translateY(70%) scaleZ(1)'},
  {at: 0.25, is: 'translateY(75%) scaleZ(1.25)'},
  {at: 0.75, is: 'translateY(85%) scaleZ(1.75)'},
  {at: 1, is: 'translateY(90%) scaleZ(2)'},
  {at: 2, is: 'translateY(110%) scaleZ(3)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translateY(70%)',
  to: 'translateY(90%) scaleZ(2)'
}, [
  {at: -1, is: 'translateY(50%) scaleZ(0)'},
  {at: 0, is: 'translateY(70%)'},
  {at: 0.25, is: 'translateY(75%) scaleZ(1.25)'},
  {at: 0.75, is: 'translateY(85%) scaleZ(1.75)'},
  {at: 1, is: 'translateY(90%) scaleZ(2)'},
  {at: 2, is: 'translateY(110%) scaleZ(3)'},
]);

// Skew
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewX(10rad)',
  to: 'skewX(20rad)'
}, [
  {at: -1, is: 'skewX(0rad)'},
  {at: 0, is: 'skewX(10rad)'},
  {at: 0.25, is: 'skewX(12.5rad)'},
  {at: 0.75, is: 'skewX(17.5rad)'},
  {at: 1, is: 'skewX(20rad)'},
  {at: 2, is: 'skewX(30rad)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewY(10rad)',
  to: 'skewY(20rad)'
}, [
  {at: -1, is: 'skewY(0rad)'},
  {at: 0, is: 'skewY(10rad)'},
  {at: 0.25, is: 'skewY(12.5rad)'},
  {at: 0.75, is: 'skewY(17.5rad)'},
  {at: 1, is: 'skewY(20rad)'},
  {at: 2, is: 'skewY(30rad)'},
]);

// Translate
assertInterpolation({
  property: '-webkit-transform',
  from: 'translate(12px, 70%)',
  to: 'translate(13px, 90%)'
}, [
  {at: -1, is: 'translate(11px, 50%)'},
  {at: 0, is: 'translate(12px, 70%)'},
  {at: 0.25, is: 'translate(12.25px, 75%)'},
  {at: 0.75, is: 'translate(12.75px, 85%)'},
  {at: 1, is: 'translate(13px, 90%)'},
  {at: 2, is: 'translate(14px, 110%)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translateX(12px)',
  to: 'translateX(13px)'
}, [
  {at: -1, is: 'translateX(11px)'},
  {at: 0, is: 'translateX(12px)'},
  {at: 0.25, is: 'translateX(12.25px)'},
  {at: 0.75, is: 'translateX(12.75px)'},
  {at: 1, is: 'translateX(13px)'},
  {at: 2, is: 'translateX(14px)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translateY(70%)',
  to: 'translateY(90%)'
}, [
  {at: -1, is: 'translateY(50%)'},
  {at: 0, is: 'translateY(70%)'},
  {at: 0.25, is: 'translateY(75%)'},
  {at: 0.75, is: 'translateY(85%)'},
  {at: 1, is: 'translateY(90%)'},
  {at: 2, is: 'translateY(110%)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translateZ(2em)',
  to: 'translateZ(3em)'
}, [
  {at: -1, is: 'translateZ(1em)'},
  {at: 0, is: 'translateZ(2em)'},
  {at: 0.25, is: 'translateZ(2.25em)'},
  {at: 0.75, is: 'translateZ(2.75em)'},
  {at: 1, is: 'translateZ(3em)'},
  {at: 2, is: 'translateZ(4em)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translate3d(12px, 70%, 2em)',
  to: 'translate3d(13px, 90%, 3em)'
}, [
  {at: -1, is: 'translate3d(11px, 50%, 1em)'},
  {at: 0, is: 'translate3d(12px, 70%, 2em)'},
  {at: 0.25, is: 'translate3d(12.25px, 75%, 2.25em)'},
  {at: 0.75, is: 'translate3d(12.75px, 85%, 2.75em)'},
  {at: 1, is: 'translate3d(13px, 90%, 3em)'},
  {at: 2, is: 'translate3d(14px, 110%, 4em)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translateX(12px) translateY(70%) translateZ(2em)',
  to: 'translateX(13px) translateY(90%) translateZ(3em)'
}, [
  {at: -1, is: 'translateX(11px) translateY(50%) translateZ(1em)'},
  {at: 0, is: 'translateX(12px) translateY(70%) translateZ(2em)'},
  {at: 0.25, is: 'translateX(12.25px) translateY(75%) translateZ(2.25em)'},
  {at: 0.75, is: 'translateX(12.75px) translateY(85%) translateZ(2.75em)'},
  {at: 1, is: 'translateX(13px) translateY(90%) translateZ(3em)'},
  {at: 2, is: 'translateX(14px) translateY(110%) translateZ(4em)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewX(10rad) translateY(70%)',
  to: 'skewX(20rad) translateY(90%)'
}, [
  {at: -1, is: 'skewX(0rad) translateY(50%)'},
  {at: 0, is: 'skewX(10rad) translateY(70%)'},
  {at: 0.25, is: 'skewX(12.5rad) translateY(75%)'},
  {at: 0.75, is: 'skewX(17.5rad) translateY(85%)'},
  {at: 1, is: 'skewX(20rad) translateY(90%)'},
  {at: 2, is: 'skewX(30rad) translateY(110%)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'skewX(1rad)',
  to: 'translate3d(8px, -4px, 12px) skewX(2rad)'
}, [
  {at: -1, is: 'matrix3d(1, 0, 0, 0, 5.2998553125713235, 1, 0, 0, 0, 0, 1, 0, -8, 4, -12, 1)'},
  {at: 0, is: 'matrix(1, 0, 1.5574077246549023, 1, 0, 0)'},
  {at: 0.25, is: 'matrix3d(1, 0, 0, 0, 0.621795827675797, 1, 0, 0, 0, 0, 1, 0, 2, -1, 3, 1)'},
  {at: 0.75, is: 'matrix3d(1, 0, 0, 0, -1.2494279662824135, 1, 0, 0, 0, 0, 1, 0, 6, -3, 9, 1)'},
  {at: 1, is: 'matrix3d(1, 0, 0, 0, -2.185039863261519, 1, 0, 0, 0, 0, 1, 0, 8, -4, 12, 1)'},
  {at: 2, is: 'matrix3d(1, 0, 0, 0, -5.9274874511779405, 1, 0, 0, 0, 0, 1, 0, 16, -8, 24, 1)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)',
  to: 'scaleY(2) skewX(2rad) perspective(500px)'
}, [
  {at: -1, is: 'matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03876288659793814, 0.01938144329896907, 0.94, -0.0029653608247422686, 16, -8, 24, 0.986144329896907)'},
  {at: 0, is: 'matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)'},
  {at: 0.25, is: 'matrix3d(1, 0, 0, 0, 1.1186572632293585, 1.25, 0, 0, -0.0151159793814433, 0.00755798969072165, 0.9775, -0.002378247422680413, 6, -3, 9, 1.0012989690721648)'},
  {at: 0.75, is: 'matrix3d(1, 0, 0, 0, -0.7525665307288518, 1.75, 0, 0, -0.005115979381443298, 0.002557989690721649, 0.9924999999999999, -0.002128247422680412, 2, -1, 3, 1.001298969072165)'},
  {at: 1, is: 'matrix3d(1, 0, 0, 0, -2.185039863261519, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)'},
  {at: 2, is: 'matrix3d(1, 0, 0, 0, -11.227342763749263, 3, 0, 0, 0.021237113402061854, -0.010618556701030927, 1.03, -0.0014653608247422677, -8, 4, -12, 0.9861443298969074)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)',
  to: 'translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)'
}, [
  {at: -1, is: 'matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03165032268879389, -0.0036057329645461413, 0.956, -0.002984745620652083, 12, 4, 16, 0.9956416059005948)'},
  {at: 0, is: 'matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)'},
  {at: 0.25, is: 'matrix3d(1, 0, 0, 0, 1.4600697418639708, 1.25, 0, 0, -0.017032782247925572, 0.013463037465426202, 0.9735, -0.0023764300980638675, 7, -6, 11, 1.0004085994468193)'},
  {at: 0.75, is: 'matrix3d(1, 0, 0, 0, 0.68136587953652, 1.75, 0, 0, -0.011032782247925572, 0.0204630374654262, 0.9804999999999999, -0.0021264300980638673, 5, -10, 9, 1.0004085994468193)'},
  {at: 1, is: 'matrix3d(1, 0, 0, 0, 0, 2, 0, 0, -0.008, 0.024, 0.984, -0.002, 4, -12, 8, 1)'},
  {at: 2, is: 'matrix3d(1, 0, 0, 0, -4.672223173964706, 3, 0, 0, 0.0043496773112061, 0.038394267035453865, 0.998, -0.0014847456206520829, 0, -20, 4, 0.9956416059005954)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)',
  to: 'translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)'
}, [
  {at: -1, is: 'matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03876288659793814, 0.01938144329896907, 0.94, -0.004845360824742268, 12, 4, 16, 0.9793814432989688)'},
  {at: 0, is: 'matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)'},
  {at: 0.25, is: 'matrix3d(1, 0, 0, 0, 0.7772447845947462, 1.25, 0, 0, -0.0151159793814433, 0.00755798969072165, 0.9775, -0.0018894974226804128, 7, -6, 11, 1.0019329896907216)'},
  {at: 0.75, is: 'matrix3d(1, 0, 0, 0, -2.1864989409942237, 1.75, 0, 0, -0.005115979381443298, 0.002557989690721649, 0.9924999999999999, -0.0006394974226804124, 5, -10, 9, 1.0019329896907216)'},
  {at: 1, is: 'matrix3d(1, 0, 0, 0, -4.370079726523038, 2, 0, 0, 0, 0, 1, 0, 4, -12, 8, 1)'},
  {at: 2, is: 'matrix3d(1, 0, 0, 0, -17.782462353533823, 3, 0, 0, 0.021237113402061854, -0.010618556701030927, 1.03, 0.0026546391752577322, 0, -20, 4, 0.9793814432989691)'},
]);

// Matrix
assertInterpolation({
  property: '-webkit-transform',
  from: 'matrix(5, 6, 10, 7, 21, 23)',
  to: 'matrix(8, 4, 9, 11, 24, 22)'
}, [
  {at: -1, is: 'matrix(-21.971399357258385, -10.985699678629187, -50.57889827616046, -38.946928317003575, 18, 24)'},
  {at: 0, is: 'matrix(5, 6, 10, 7, 21, 23)'},
  {at: 0.25, is: 'matrix(1.5045862850823934, 2.1375701058706307, 1.9887759643453702, 1.2132035030840276, 21.75, 22.75)'},
  {at: 0.75, is: 'matrix(3.1847985591364396, 1.2803008685850275, 4.4228208119507615, 5.537010031441669, 23.25, 22.25)'},
  {at: 1, is: 'matrix(8, 4, 9, 11, 24, 22)'},
  {at: 2, is: 'matrix(-16.45196668627737, -19.74236002353284, -18.81066272622538, 0.5900238929654478, 27, 21)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'matrix(43.30127018922194, 30, -17.5, 36.373066958946424, 31, 33)',
  to: 'matrix(36, 31.17691453623979, -76.2102355330306, 22, 34, 32)'
}, [
  {at: -1, is: 'matrix(50.66971090528417, 27.756474621427802, 4.860028812048279, 17.73232844681859, 28, 34)'},
  {at: 0, is: 'matrix(43.30127018922194, 30, -17.5, 36.373066958946424, 31, 33)'},
  {at: 0.25, is: 'matrix(41.46349186018549, 30.39211289511227, -29.128915461329193, 36.33246246588023, 31.75, 32.75)'},
  {at: 0.75, is: 'matrix(37.81039134763866, 30.97972596106563, -58.64609980106118, 29.322678715217965, 33.25, 32.25)'},
  {at: 1, is: 'matrix(36, 31.17691453623979, -76.2102355330306, 22, 34, 32)'},
  {at: 2, is: 'matrix(28.9236870855142, 31.34124716880554, -160.89841710117557, -36.69885507392111, 37, 31)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'none',
  to: 'matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)'
}, [
  {at: -1, is: 'matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)'},
  {at: 0, is: 'none'},
  {at: 0.25, is: 'matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)'},
  {at: 0.75, is: 'matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)'},
  {at: 1, is: 'matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)'},
  {at: 2, is: 'matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)',
  to: 'none'
}, [
  {at: -1, is: 'matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)'},
  {at: 0, is: 'matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)'},
  {at: 0.25, is: 'matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)'},
  {at: 0.75, is: 'matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)'},
  {at: 1, is: 'none'},
  {at: 2, is: 'matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)',
  to: 'matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)'
}, [
  {at: -1, is: 'matrix3d(1.9877532948000005, 0.0, 0.0, 0.0, 0.0, 2.7492749567000003, 0.0, 0.0, 0.0, 0.0, 2.5165290423999997, 0.0, 20.2343946258, 21.1087405532, 21.371164870599998, 1.0)'},
  {at: 0, is: 'matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)'},
  {at: 0.25, is: 'matrix3d(2.441256919175, 0.0, 0.0, 0.0, 0.0, 2.571299218825, 0.0, 0.0, 0.0, 0.0, 2.6947530634, 0.0, 20.35889062555, 20.561444082325, 20.800684839349998, 1.0)'},
  {at: 0.75, is: 'matrix3d(2.622658368925, 0.0, 0.0, 0.0, 0.0, 2.500108923675, 0.0, 0.0, 0.0, 0.0, 2.7660426718, 0.0, 20.408689025450002, 20.342525493975, 20.572492826850002, 1.0)'},
  {at: 1, is: 'matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)'},
  {at: 2, is: 'matrix3d(3.0761619932999995, 0.0, 0.0, 0.0, 0.0, 2.3221331858, 0.0, 0.0, 0.0, 0.0, 2.9442666928000003, 0.0, 20.5331850252, 19.7952290231, 20.002012795600002, 1.0)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'none',
  to: 'matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)'
}, [
  {at: -1, is: 'matrix3d(-0.0000000000000002377810622383943, -1.0671050586638147, -0.08972656766237302, 1.3740432449326199, 0.98484601036295, -2.653201092395309, 0.6753819540610847, 3.6127240080250744, -2.7988839807429846, -1.2090004194153336, -0.5183744226115445, -0.7936088631686278, 1.1875, 0.0625, -1.3125, 5.340768914473683)'},
  {at: 0, is: 'none'},
  {at: 0.25, is: 'matrix3d(0.9041890962319094, 0.3522701519297133, -0.15240204298176957, -0.1428256720529315, -0.7579798772527586, 0.6803606288839232, -0.05133336076757235, 0.37904689530895724, -0.1957679784745485, 0.38554138029509327, 0.8226186974340638, 0.3370288143441876, -0.296875, -0.015625, 0.328125, 0.5930529142680923)'},
  {at: 0.75, is: 'matrix3d(0.35007413226026135, 0.7254385504141292, -0.4977009150941454, 0.09582061929004702, -1.1027525038949482, -0.5884810398827429, 0.4516829688651701, 0.5447944343861767, -0.68717798815684, 0.2657772247405681, 0.5465690479810023, 1.0836207863885503, -0.890625, -0.046875, 0.984375, 0.5930529142680927)'},
  {at: 1, is: 'matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)'},
  {at: 2, is: 'matrix3d(-0.5844534449366048, -0.42278005999296053, -0.4650580659922564, -0.6817595809063256, 0.9156938760088464, 0.3851647027225889, 0.9244443507516923, 0.7218225020358241, -0.0803568793574344, 0.1719974850210706, -0.49676609633513097, -0.25968177786904373, -2.375, -0.125, 2.625, 5.340768914473685)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)',
  to: 'matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)'
}, [
  {at: -1, is: 'matrix3d(-0.6299594065765657, -0.10825090106268696, -0.20133311671001855, 5.485724217214554, 6.358051978686152, 0.16496896269344588, 1.5760051143537075, -54.21568355620423, 0.7106057459805782, -1.1596356050622005, -0.11495342545397585, -4.913752963990824, -1.03125, -1.125, 3.5625, -5.901513951904114)'},
  {at: 0, is: 'matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)'},
  {at: 0.25, is: 'matrix3d(0.33652832679595723, 0.55254445148386, -0.7544724447833296, 0.22700224951774267, -0.69720168363685, -0.036373245768780864, 0.28149188169180933, -0.2845156818045006, -0.24737156018941048, 0.31207160370190334, 0.4564821058052897, 0.9220853089096839, -1.2265625, 0.203125, 0.75, 1.647016932991011)'},
  {at: 0.75, is: 'matrix3d(0.6861191524977764, -0.18025672746204927, -0.8710297237546482, 0.6072134247444672, 0.2819931018922366, 0.27778974607679663, -0.6540128246146626, 0.5063632314069845, 0.5509562084361049, -0.3215202993119732, 0.5459062603735321, 2.8697154005492105, -1.3046875, 0.734375, -0.375, 1.6470169329910096)'},
  {at: 1, is: 'matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)'},
  {at: 2, is: 'matrix3d(-1.1789992641434441, -0.7109729379601547, -0.4455746537954199, -21.703089533128907, -0.11137581475421703, -0.08822983871000473, -0.05695380894007451, -2.22667264132605, -3.1443917136741506, 1.8952588096345078, 2.426615889772007, -21.697523130750138, -1.5, 2.0625, -3.1875, -5.901513951904121)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)',
  to: 'none'
}, [
  {at: -1, is: 'matrix3d(-0.6413028394192518, -1.0702420910513302, -0.5807595966791961, -18.02447171345163, 0.8211815704840004, 1.0980679097347057, 0.9399408862655454, 22.460730852026064, 0.28421009261178104, -0.5408346238741739, 0.5194791363698213, 3.075163035391172, -2.6875, 2, -1.875, -14.881239394516232)'},
  {at: 0, is: 'matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)'},
  {at: 0.25, is: 'matrix3d(0.7912976716694541, -0.4517927901159618, -0.6868745974719376, 1.2522201536338506, 0.7952183069582651, 0.06340410955800829, -0.7956629784232128, 2.2561737435012983, 0.345639443327071, -0.8934490945546473, 0.830131443385676, 1.2606901484983566, -1.0078125, 0.75, -0.703125, 2.4888661932358946)'},
  {at: 0.75, is: 'matrix3d(1.0093457700315165, -0.12746048375025829, -0.24746788943106088, 1.3202120308857304, 0.6128364656690982, 0.7600694601651116, -0.22233359857303325, 1.4081483224940277, 0.21669805381113447, -0.3786082265932788, 0.908354523914928, 0.6747509193960347, -0.3359375, 0.25, -0.234375, 2.4888661932358964)'},
  {at: 1, is: 'none'},
  {at: 2, is: 'matrix3d(0.39048513570444376, 0.14780794797065988, 0.6963068100217401, -4.857907861239344, -2.967682789284791, 0.6004978769584385, -3.5472376016872444, 26.675324787979896, -2.5953724498995308, 1.6280843851961373, 0.8163834310586356, 9.001735256585825, 1.34375, -1, 0.9375, -14.881239394516227)'},
]);

// Mismatched interpolation with an empty list should not use decomposition.
assertInterpolation({
  property: '-webkit-transform',
  from: 'none',
  to: 'rotate(180deg)'
}, [
  {at: -1, is: 'rotate(-180deg)'},
  {at: 0, is: 'rotate(0deg)'},
  {at: 0.25, is: 'rotate(45deg)'},
  {at: 0.75, is: 'rotate(135deg)'},
  {at: 1, is: 'rotate(180deg)'},
  {at: 2, is: 'rotate(360deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'rotate(180deg)',
  to: 'none'
}, [
  {at: -1, is: 'rotate(360deg)'},
  {at: 0, is: 'rotate(180deg)'},
  {at: 0.25, is: 'rotate(135deg)'},
  {at: 0.75, is: 'rotate(45deg)'},
  {at: 1, is: 'rotate(0deg)'},
  {at: 2, is: 'rotate(-180deg)'},
]);
assertInterpolation({
  property: '-webkit-transform',
  from: 'none',
  to: 'rotate(360deg)'
}, [
  {at: -1, is: 'rotate(-360deg)'},
  {at: 0, is: 'rotate(0deg)'},
  {at: 0.25, is: 'rotate(90deg)'},
  {at: 0.75, is: 'rotate(270deg)'},
  {at: 1, is: 'rotate(360deg)'},
  {at: 2, is: 'rotate(720deg)'},
]);
</script>
</body>