animateMotion-from-to-rotate-auto-horizontal.html

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This WPT test may be referenced by the following Test IDs:
- /svg/animations/animateMotion-from-to-rotate-auto-horizontal.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>&lt;animateMotion> from/to animation with rotate=auto and horizontal 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="-300,50" to="200,50" 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;

  assert_approx_equals(bbox.x, x, epsilon, 'bbox x');

  assert_approx_equals(bbox.y, y, epsilon, 'bbox y');

// delta = to - from = (500, 0). The slope angle is atan2(0, 500) = 0deg, so

// the element translates horizontally with no rotation. This covers the

// fromPoint.y == toPoint.y (delta.y == 0) case.

function sample1() {

  assert_bbox_position(rootSVGElement, -500, 50);

function sample2() {

  assert_bbox_position(rootSVGElement, -250, 50);

function sample3() {

  assert_bbox_position(rootSVGElement, 0, 50);

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>