test_getPathSegListAtLength_with_d_property.html

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<!DOCTYPE html>

<title>Test for getPathSegAtLength for d property</title>

<meta charset=utf-8>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<style>

svg {

  width: 10%;

  height: 10%;

  background: #eee;

svg path {

  fill: none;

  stroke: #000;

</style>

<div id="log"></div>

<svg viewBox="0 0 20 10">

  <path id='target1' d="M2,2 L8,8 L12,4"/>

</svg>

<svg viewBox="0 0 20 10">

  <path id='target2' style='d: path("M2,2 L8,8 L12,4")' />

</svg>

<script>

/* global test, assert_equals */

'use strict';

test(function() {

  let target1 = document.getElementById('target1');

  let target2 = document.getElementById('target2');

  assert_equals(target1.getPathSegAtLength(5), 1);

  assert_equals(target2.getPathSegAtLength(5), 1);

  assert_equals(target1.getPathSegAtLength(10), 2);

  assert_equals(target2.getPathSegAtLength(10), 2);

}, "getPathSegAtLength works properly on both d attribute and d property");

test(function() {

  let target = document.getElementById('target1');

  // Note: in order to make sure we flush style properly, we call

  // getComputedStyle after setting an initial value first, so if

  // getPathSegAtLength(5) doesn't flush style, it returns 0.

  target.style.d = 'none';

  assert_equals(getComputedStyle(target).d, "none");

  target.style.d = 'path("M2,2 h3 v5")';

  assert_equals(target.getPathSegAtLength(5), 2);

}, "getPathSegAtLength works properly after updating d property");

</script>