<!doctype html>
<meta charset=utf-8>
<title>img update media</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var t = async_test('set media after src updates selected image');
var img;
onload = t.step_func(function() {
img = document.querySelector('img');
img.addEventListener('load', t.step_func_done(onImgLoad));
var source = document.querySelector('source[data-media]');
source.setAttribute('media', source.getAttribute('data-media'));
});
function onImgLoad() {
img.removeEventListener('load', onImgLoad);
assert_true(img.currentSrc.indexOf(img.getAttribute('data-expect')) > -1);
}
</script>
<div id="log"></div>
<picture>
<source srcset="/images/fail.gif" data-media="(max-width: 1px)" />
<source srcset="/images/smiley.png" />
<img data-expect="/images/smiley.png">
</picture>