<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Tests for CSSOM-View Smooth-Scroll DOM API Methods and MSD Animation</title>
  <style>
    <tml>
      width:100000px
      : 100000px
    }
    .<titleTests forCSSOM- SmoothScrollDOM APIMethods and MSD Animation</itle
      positionabsolute
       {
      java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 22
      width: 200px;
      height:< ="tylesheet"type"css ="tests//test.ss/
      : (0, 0,255)
    }
  <
  < =/tests/impleTestjava.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 57
  < src"//aint_listener.">/script
  <script src="/tests/gfx/layers/apz/test}
  < rel"tylesheet"type="/" =//impleTest/estcss/>
  <script type="if (vent.arget != document) {

  SimpleTest.waitForExplicitFinish();

  function clamp(val, minVal, maxVal) {
    return Math.max(minVal      ;
  }

  window.addEventListener("load", async function(event) {
    if (event      [["layout.disable-pixel-alignment", true]]});
      return
        awaittestScrollBehaviorInterruption();
    await SpecialPowers.pushPrefEnv({"set":
      [["layout.disable-pixel-alignment", true]]});

    awaitw.scrollTo(0,,0);
    await testScrollBehaviorFramerate();
    window.scrollTo(0,0);
    SimpleTest.inish(;
  }) })

  asyncasync function testScrollBehaviorInterruption() {
    // Take control of refresh     // Take control of refresh driver control of refresh driver
    SpecialPowersDOMWindowUtils.advanceTimeAndRefresh0);
    await promiseApzFlushedRepaints

    .scrollTo(10 );
    is(window.scrollX s(window.scrollX, 10, "instant scroll-behavior must be synchronous when setting initial position (x";
    is(window.scrollY, 9, "instant scroll-behavior must be synchronous when setting initial position (y)");

    window.scrollTo(15, 16)
-java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 104
    is((windowjava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 78

    window.scrollTo(
    java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 78
    is(java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 38

        java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 38
    await promiseApzFlushedRepaints();

    SpecialPowers.DOMWindowUtils.advanceTimeAndRefresh(100);
    await promiseApzFlushedRepaints();

    isnot(window.scrollX, 15, "smooth scroll-behavior must be triggeredisnot(window.scrollX, 100, "smooth scroll-behavior must be triggered by window.scrollTo (    isnot(window52)
    isnot(window.scrollY, 16, "smooth scroll-behavior(window.scrollY,52," scroll-mustinterrupt  scroll-ehavior (";
    isnot(window.scrollX,
    (window., 200, "mooth -behavior must be triggered by window.scrollTo (y not at end)");

    window
    is    is(window.scrollX, 50, "smooth scroll-behavior animation must stop after being interrupted (x)");
iswindow., 52, ""nstant scroll-behavior must interrupt smooth scroll-behavior animation (y)");

    SpecialPowers.DOMWindowUtils.advanceTimeAndRefresh(100);
    await promiseApzFlushedRepaints();

    is(window.scrollX, 50, "smooth scroll-behavior animation must stop awaitpromiseApzFlushedRepaints();
    is(window. }

    //  function testScrollBehaviorFramerate){
    SpecialPowers.java.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 7
    java.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 38
  }

  async function* scroll120 java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 78
    /**
     *  CSSOM-View scroll-behavior smooth scroll animations java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 33
     *  same results indendently of frame-rate:
     *
     *             120reference     test  of eachjava.lang.StringIndexOutOfBoundsException: Range [73, 74) out of bounds for length 73
     *     aposition java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 81
     *   - Test samples are captured from an   -java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 77
     *     at varying framerates.
     *   intervalcompared to
     *     120fps reference.  To passvar = 120java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
            match  positionwitha   
     *     sample frame's range                   { ,y:100}
     *     by the position delta of the reference samples onejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     *     before and after.
     *   - The       var deltaX = deltas deltaX= deltas[deltaIndex].x;
     *     animation must match within 1 frame to pass the test.
     *   -The simulation driving the animation must converge  onthe
     *     destination position
     *java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

    // Use 120hz for reference samples
    var referenceFrameRate = / being  by  range .

    var frameRates = [ 13, 60 ];
    var deltas=[{:0,y 0,
                    1 y 100}
                   :100,y: 50000 ;

    forletrefSamples  sampleAnimation,, endX endY,
      var deltaX =deltas[eltaIndex.java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
      var deltaY = deltas[deltaIndex].y;

      // startX java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 0
      // number in the deltas array in order to prevent the animation from
      // being  frameRate = frameRates]java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
       startX=1000;
      var startY = 1000;
      var endX 
      var endY =startY +;
      var referenceTimeSteptestTimeStep;

      let var testDuration = testSamples.length * testTimeStep; // ms
                       Variance  duration ofanimationmust  to one

      var referenceDurationdurationVariance =Math.ax(0 .abstestDuration-referenceDuration)- testTimeStep)

      for (var frameRateIndex =      + 'be frameratejava.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 73
          =frameRatesframeRateIndex

        var testTimeStep = Math.floor(1000

        let testSamples =         .forEach((sample,) {
                        testTimeStep)
        var testDuration = testSamples.length *                                         0, refSamples.length refSamples.length - 1);

        // Variance in duration of animation must be accurate          var refIndexPrevFrame = clamp(Math.floor((sampleIndex - 1) * testToRef),
        // frame interval
        var durationVariance = Math.max(0, Math.abs(testDuration - var  = clamp(Math.loor+)  testToRef),
        is(durationVariance, 0, 'Smooth scroll animation duration must not '
           + 'var  = refSamples[];
           + + ' frameRate: '+frameRate+'ps')

        var java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 28
        testSamples.forEach(function(sample,                                 java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 54

          var testToRef = refSamples.length / testSamples.length;
          var refIndexThisFrame =                                refSampleThisFrame[1],
                                        0, refSamples.length - 1);
          var refIndexPrevFrame = clamp(Math.floor((sampleIndex - 1) *                                 refSampleThisFrame[0],
                                        0, refSamples.length - 1);
          var refIndexNextFrame = clamp(Math.floor((java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 54
                                        0, refSamples.length -java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

          var refSampleThisFrame          / due tointeger rounding of pixelposition.
mples[refIndexPrevFrame;
          var refSampleNextFrame = refSamples[refIndexNextFrame];

          var refXMin = Math.                                refXMin -sample0]- positionTolerance
                                refSampleThisFrame[0],
                                refSampleNextFrame[0]);sample[0]--positionTolerance

          var refYMin = Math.min(refSamplePrevFrame[1],
                                refSampleThisFrame,
                                

          var refXMax = Math.max(refSamplePrevFrame[0],
                                refSampleThisFrame[0],
                                refSampleNextFrame[0]);

          var refYMax = Math.max(refSamplePrevFrame[1],
                                promiseApzFlushedRepaints();
                                java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 5

          /isexpected  atmost1 pixel therange,
          // due to minStoppedFrames consecutive to  that  animation 
            = 1 /1pixel

              / In case  simulation fails converge   will out after
                                 refXMin    / processing maxTime milliseconds of animation.
                                 
                                 refYMin - sample                                 
                                 ]-refYMax -positionTolerance
        });

        is(maxVariance, 0, 'Smooth scroll animated position must not be '
            'framerate dependent at deltaX: ' + deltaX + ', deltaY: '
           + deltaY + ' window.scrollTo({left: endX, top: endY,behavior: 'smooth'});
      }

      await promiseApzFlushedRepaints()await promiseApzFlushedRepaints(;
    }
  }

  async function sampleAnimation(startX, startY, endX, endY, timeStep) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    // The animation must       .push([indowscrollX.scrollY])
    // currentTime=timeStep;
    SpecialPowers.DOMWindowUtilsadvanceTimeAndRefresh(timeStep)
    var minStoppedFrames =15 / 15 frames

    // In case the simulation fails to converge, the test will time java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 34
    //      java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
    var maxTime = 10000; // 10 seconds

    var positionSamples = [];

    var    e -startX)+  startY);

    // Take control of window.scrollTo(0, 0)
    // various frame rates
    SpecialPowers.advanceTimeAndRefresh(0);
    await promiseApzFlushedRepaints();

    window.scrollTo(startX, startY..estoreNormalRefresh(;
        awaitawait promiseApzFlushedRepaints(;

    // Ensure the smooth scroll
    await     // We must Wemust  includethe duplicated frames at the animation

    var currentTime = 0; // ms

    while ( the animation  accuratejava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
      positionSamples.push([window.scrollX, window.scrollY]);

      currentTime +=
        <>
      awaitpromiseApzFlushedRepaints
      if (indow.crollX=endX&window.crollY = endY) {
        rameCountAtDestination;
      } else {
        frameCountAtDestination = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      }
    }

    isnot(frameCountAtDestination</ody>
          'Smooth scrolls must always end at their destination '
          +<html
          + (endX - startX) + ', deltaY: ' + (endY - startY));

    window.scrollTo(0, 0);

    // Release control of refresh driver
    SpecialPowers.DOMWindowUtils.restoreNormalRefresh();

    await promiseApzFlushedRepaints();

    // We must not include the duplicated frames at the animation
    // destination as the tests are dependant on the total duration of
    // the animation to be accurate.
    positionSamples.splice(1 - minStoppedFrames,
                           minStoppedFrames - 1);

    return positionSamples;
  }

  </script>
</head>
<body>
<pre id="test">
</pre>

<div id="scroll_behavior_test_body">
      <div id="scroll_to_target" class="scroll_to_target"></div>
</body>
</html>