adoption.html - mozsearch

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/the-img-element/adoption.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>Adopting an image updates the image data</title>

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

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

<div id=log></div>

<!-- tests -->

<div id="adoptTest1"></div>

<picture id="adoptTest2">

<source srcset="/images/green-2x2.png">

</picture>

<script>

function resolve(url) {

  if (url === "") {

    return url;

  var a = document.createElement('a');

  a.href = url;

  return a.href;

function t(desc, data, expect) {

  async_test(function(t) {

    var d = (new DOMParser()).parseFromString(data, 'text/html');

    var i = d.querySelector('img');

    i.onerror = this.unreached_func('got unexpected error event');

    i.onload = this.step_func_done(function() {

      assert_equals(i.currentSrc, resolve(expect));

});

    var n = d.querySelector('[adopt-node]');

    document.adoptNode(n);

  }, desc);

onload = function() {

  t('img (src only)',

    '<img src="/images/green-1x1.png" adopt-node>',

    '/images/green-1x1.png');

  t('img (src only), parent is picture',

    '<picture adopt-node><img src="/images/green-1x1.png"></picture>',

    '/images/green-1x1.png');

  t('img (src only), previous sibling is source',

    '<picture adopt-node><source srcset="/images/green-1x1.png"><img src="/images/green-2x2.png"></picture>',

    '/images/green-1x1.png');

  t('img (srcset 1 cand)',

    '<img srcset="/images/green-1x1.png" adopt-node>',

    '/images/green-1x1.png');

  t('img (srcset 1 cand), parent is picture',

    '<picture adopt-node><img srcset="/images/green-1x1.png"></picture>',

    '/images/green-1x1.png');

  t('img (srcset 1 cand), previous sibling is source',

    '<picture adopt-node><source srcset="/images/green-1x1.png"><img srcset="/images/green-2x2.png"></picture>',

    '/images/green-1x1.png');

  async_test(function(t) {

    var d = (new DOMParser()).parseFromString('<template><img src="/images/green-1x1.png"></template>', 'text/html');

    var i = d.querySelector('template').content.querySelector('img').cloneNode(1);

    i.onerror = this.unreached_func('got unexpected error event');

    i.onload = this.step_func_done(function() {

      assert_equals(i.currentSrc, resolve('/images/green-1x1.png'));

});

    document.getElementById('adoptTest1').appendChild(i);

  }, 'adopt a cloned img in template');

  async_test(function(t) {

    var preload = new Image();

    preload.src = '/images/green-1x1.png?' + Math.random();

    preload.onload = t.step_func(function() {

      var d = (new DOMParser()).parseFromString('<img src="' + preload.src + '">', 'text/html');

      var i = d.querySelector('img');

      i.onerror = this.unreached_func('got unexpected error event');

      i.onload = this.step_func_done(function() {

        assert_equals(i.currentSrc, resolve("/images/green-2x2.png"));

});

      var p = document.getElementById('adoptTest2');

      p.appendChild(i);

});

  }, 'adoption is from appendChild');

};

</script>