Blitz - WPT: animateMotion-from-to-rotate-auto-no-motion.html

wpt / svg / animations / animateMotion-from-to-rotate-auto-no-motion.html

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/svg/animations/animateMotion-from-to-rotate-auto-no-motion.html

<!doctype html>
<title>&lt;animateMotion> from/to animation with rotate=auto and no motion</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/SVGAnimationTestCase-testharness.js"></script>
<svg>
  <rect x="-200" width="200" height="100" fill="blue">
    <animateMotion id="anim" from="100,100" to="100,100" rotate="auto"
                   fill="freeze" dur="4s"/>
  </rect>
</svg>
<script>
const rootSVGElement = document.querySelector('svg');

function assert_bbox_position(element, x, y) {
  const bbox = element.getBBox();
  const epsilon = 0.5;
  // A NaN angle would propagate through rotate() and make these NaN, so the
  // approx_equals assertions below double as a NaN guard.
  assert_approx_equals(bbox.x, x, epsilon, 'bbox x');
  assert_approx_equals(bbox.y, y, epsilon, 'bbox y');
}

// delta = to - from = (0, 0). The slope angle is atan2(0, 0), which must
// resolve to 0deg (not NaN), so the element is translated to (100, 100) with
// no rotation. This covers the fromPoint == toPoint (zero delta) case.
function sample1() {
  assert_bbox_position(rootSVGElement, -100, 100);
}

function sample2() {
  assert_bbox_position(rootSVGElement, -100, 100);
}

function sample3() {
  assert_bbox_position(rootSVGElement, -100, 100);
}

smil_async_test(t => {
  const expectedValues = [
    // [animationId, time, sampleCallback]
    ['anim', 0.0, sample1],
    ['anim', 2.0, sample2],
    ['anim', 4.0, sample3],
  ];
  runAnimationTest(t, expectedValues);
});

window.animationStartsImmediately = true;
</script>