gecko-dev/dom/smil/test/test_smilKeySplines.xhtml

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>Test for SMIL keySplines</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
<svg id="svg" xmlns="http://www.w3.org/2000/svg" width="120px" height="120px"
     onload="this.pauseAnimations()">
  <circle cx="-100" cy="20" r="15" fill="blue" id="circle"/>
</svg>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
<![CDATA[
/** Test for SMIL keySplines **/

/* Global Variables */
const svgns="http://www.w3.org/2000/svg";
var svg = document.getElementById("svg");
var circle = document.getElementById('circle');

SimpleTest.waitForExplicitFinish();

function createAnim() {
  var anim = document.createElementNS(svgns,'animate');
  anim.setAttribute('attributeName','cx');
  anim.setAttribute('dur','10s');
  anim.setAttribute('begin','0s');
  anim.setAttribute('fill', 'freeze');
  return circle.appendChild(anim);
}

function main() {
  ok(svg.animationsPaused(), "should be paused by <svg> load handler");
  is(svg.getCurrentTime(), 0, "should be paused at 0 in <svg> load handler");

  var tests =
    [ testSimpleA, // these first four are from SVG 1.1
      testSimpleB,
      testSimpleC,
      testSimpleD,
      testSimpleE, // bug 501569
      testMultipleIntervalsA,
      testMultipleIntervalsB,
      testMultipleIntervalsC,
      testOneValue,
      testFromTo,
      testWrongNumSplines,
      testToAnimation,
      testOkSyntax,
      testBadSyntaxA,
      testBadSyntaxB
    ];
  for (var i = 0; i < tests.length; i++) {
    var anim = createAnim();
    svg.setCurrentTime(0);
    tests[i](anim);
    anim.parentNode.removeChild(anim);
  }
  SimpleTest.finish();
}

function checkSample(time, expectedValue) {
  svg.setCurrentTime(time);
  is(circle.cx.animVal.value, expectedValue);
}

function checkSampleRough(time, expectedValue, precision) {
  const defaultPrecision = 0.00001;
  if (typeof precision == "undefined") {
    precision = defaultPrecision;
  }
  svg.setCurrentTime(time);
  var diff = Math.abs(expectedValue - circle.cx.animVal.value);
  ok(diff <= precision,
    "Unexpected sample value got " + circle.cx.animVal.value
      + ", expected " + expectedValue + " [error is " + diff
      + ", tolerance is " + precision + "]");
}

/*
 * These first four tests are the examples given in SVG 1.1, section 19.2.7
 */

function testSimpleA(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20');
  anim.setAttribute('keyTimes', '0; 1');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '0 0 1 1');
  checkSample(0, 10);
  checkSample(1, 12.5);
  checkSample(2, 15);
  checkSample(3, 17.5);
  checkSample(4, 20);
}

function testSimpleB(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20');
  anim.setAttribute('keyTimes', '0; 1');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '.5 0 .5 1');
  checkSample(0, 10);
  checkSampleRough(1, 11.058925);
  checkSample(2, 15);
  checkSampleRough(3, 18.941075);
  checkSample(4, 20);
}

function testSimpleC(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20');
  anim.setAttribute('keyTimes', '0; 1');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '0 .75 .25 1');
  checkSample(0, 10);
  checkSampleRough(1, 18.101832);
  checkSampleRough(2, 19.413430);
  checkSampleRough(3, 19.886504);
  checkSample(4, 20);
}

function testSimpleD(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20');
  anim.setAttribute('keyTimes', '0; 1');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '1 0 .25 .25');
  checkSample(0, 10);
  checkSampleRough(1, 10.076925);
  checkSampleRough(2, 10.644369);
  checkSampleRough(3, 16.908699);
  checkSample(4, 20);
}

// Bug 501569 -- nsSMILKeySpline(1, 0, 0, 1) miscalculates values just under 0.5
function testSimpleE(anim) {
  anim.setAttribute('dur','10s');
  anim.setAttribute('values', '0; 10');
  anim.setAttribute('keyTimes', '0; 1');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '1 0 0 1');
  checkSample(0, 0);
  checkSampleRough(0.001, 0);
  checkSampleRough(4.95, 3.409174);
  checkSampleRough(4.98, 3.819443);
  checkSampleRough(4.99, 4.060174);
  checkSampleRough(4.999, 4.562510);
  checkSample(5, 5);
  checkSampleRough(5.001, 5.437490);
  checkSampleRough(5.01, 5.939826);
  checkSampleRough(5.015, 6.075002);
  checkSampleRough(5.02, 6.180557);
  checkSampleRough(9.9999, 10);
  checkSample(10, 10);
}

function testMultipleIntervalsA(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20; 30');
  anim.setAttribute('keyTimes', '0; 0.25; 1');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '0 0 1 1; .5 0 .5 1;');
  checkSample(0.5, 15);
  checkSampleRough(0.999, 20, 0.02);
  checkSample(1, 20);
  checkSampleRough(1.001, 20, 0.05);
  checkSample(2.5, 25);
  checkSampleRough(3.25, 29, 0.1);
}

function testMultipleIntervalsB(anim) {
  // as above but without keyTimes
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20; 30');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '0 0 1 1; .5 0 .5 1;');
  checkSample(1, 15);
  checkSampleRough(1.999, 20, 0.01);
  checkSample(2, 20);
  checkSampleRough(2.001, 20, 0.01);
  checkSample(3, 25);
  checkSampleRough(3.5, 29, 0.1);
}

function testMultipleIntervalsC(anim) {
  // test some unusual (but valid) syntax
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20; 30');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', ' 0 .75 0.25 1 ; 1, 0 ,.25 .25  \t');
  checkSampleRough(3.5, 26.9, 0.2);
}

function testOneValue(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '5');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '0 0 1 1');
  checkSample(0, 5);
  checkSample(1.5, 5);
}

function testFromTo(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('from', '10');
  anim.setAttribute('to', '20');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '.5 0 .5 1');
  checkSample(0, 10);
  checkSampleRough(1, 11, 0.1);
}

function testWrongNumSplines(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('from', '10');
  anim.setAttribute('to', '20');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '.5 0 .5 1; 0 0 1 1');
  // animation is in error, should do nothing
  checkSample(1.5, -100);
}

function testToAnimation(anim) {
  anim.setAttribute('dur','4s');
  anim.setAttribute('to', '20');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', '.5 0 .5 1');
  checkSample(0, -100);
  checkSampleRough(1, -87.3, 0.1);
}

function testOkSyntax(anim) {
  var okStrs = ['0,0,0,0', // all commas
                '  0 0   , 0  ,0  ', // mix of separators
                '0 0 0 0;', // trailing semi-colon
                '0 0 0 0 ;']; //   "      "

  for (var i = 0; i < okStrs.length; i++) {
    testAnim = createAnim();
    testAnim.setAttribute('dur','4s');
    testAnim.setAttribute('from', '0');
    testAnim.setAttribute('to', '20');
    testAnim.setAttribute('calcMode', 'spline');
    testAnim.setAttribute('keySplines', okStrs[i]);
    checkSample(4, 20);
    testAnim.parentNode.removeChild(testAnim);
  }
}

function testBadSyntaxA(anim) {
  var badStrs = ['', // empty
                 '    ', // whitespace only
                 '0,1.1,0,0', // bad range
                 '0,0,0,-0.1', // "   "
                 '  0 0   , 0  0   ,', // stray comma
                 '1-1 0 0', // path-style separators
                 '0 0 0', // wrong number of values
                 '0 0 0 0 0', //  "     "
                 '0 0 0 0 0 0 0 0', //  "     "
                 '0 0 0; 0 0 0 0', //  "     "
                 '0 0 0; 0', // mis-placed semi-colon
                 ';0 0 0 0']; //    "    "

  for (var i = 0; i < badStrs.length; i++) {
    testAnim = createAnim();
    testAnim.setAttribute('dur','4s');
    testAnim.setAttribute('from', '0');
    testAnim.setAttribute('to', '20');
    testAnim.setAttribute('calcMode', 'spline');
    testAnim.setAttribute('keySplines', badStrs[i]);
    checkSample(4, -100);
    testAnim.parentNode.removeChild(testAnim);
  }
}

function testBadSyntaxB(anim) {
  // test some illegal syntax
  anim.setAttribute('dur','4s');
  anim.setAttribute('values', '10; 20; 30');
  anim.setAttribute('calcMode', 'spline');
  anim.setAttribute('keySplines', ' 0 .75 0.25 1 ; 1, A0 ,.25 .25  \t');
  // animation is in error, should do nothing
  checkSample(3.5, -100);
}

window.addEventListener("load", main, false);
]]>
</script>
</pre>
</body>
</html>