gecko-dev/image/test/mochitest/test_error_events.html

68 lines
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HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=715308
-->
<head>
<title>Test for Bug 715308 comment 93</title>
<script type="application/javascript" src="/MochiKit/MochiKit.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<!-- Test for Bug 715308 comment 93:
- For a valid image, onload is fired and onerror is never fired.
- For an image with errors, onerror is fired, but onload is never fired.
- For any image, either onload or onerror is fired, but never both.
-->
<script type="text/javascript;version=1.8">
"use strict";
SimpleTest.waitForExplicitFinish();
var numCallbacks = 0;
function image_error(name)
{
numCallbacks++;
ok(name == 'error-early', "Got onerror for " + name);
}
function image_load(name)
{
numCallbacks++;
ok(name == 'shaver', "Got onload for " + name);
}
function page_load()
{
ok(numCallbacks == 2, 'Got page load before all onload/onerror callbacks?');
// Spin the event loop a few times to let image_error run if it's going to,
// then finish the test.
SimpleTest.executeSoon(function() {
SimpleTest.executeSoon(function() {
SimpleTest.executeSoon(function() {
SimpleTest.finish();
});
});
});
}
addEventListener('load', page_load);
</script>
<div id="content">
<img src='shaver.png' onerror='image_error("shaver")' onload='image_load("shaver")'>
<img src='error-early.png' onerror='image_error("error-early")' onload='image_load("error-early")'>
</div>
</pre>
</body>
</html>