mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

Bug 1287706 part 8 - Add web-platform-test for once option. r=smaug 

MozReview-Commit-ID: t5f34n2taN

--HG--
extra : source : e69c73673e363e383b5fbdac0b909a34bf2856f9
This commit is contained in:
Xidorn Quan 2016-07-28 12:00:06 +10:00
Родитель a622a4ba48
Коммит 5f25699b9f
2 изменённых файлов: 87 добавлений и 0 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

6
testing/web-platform/meta/MANIFEST.json
Просмотреть файл

@ -36383,6 +36383,12 @@
"url": "/XMLHttpRequest/xmlhttprequest-sync-not-hang-scriptloader.html"
}
],
"dom/events/AddEventListenerOptions-once.html": [
{
"path": "dom/events/AddEventListenerOptions-once.html",
"url": "/dom/events/AddEventListenerOptions-once.html"
}
],
"editing/run/justifycenter.html": [
{
"path": "editing/run/justifycenter.html",

81
testing/web-platform/tests/dom/events/AddEventListenerOptions-once.html Normal file
Просмотреть файл

@ -0,0 +1,81 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>AddEventListenerOptions.once</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org">
<link rel="help" href="https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-once">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
test(function() {
var invoked_once = false;
var invoked_normal = false;
function handler_once() {
invoked_once = true;
}
function handler_normal() {
invoked_normal = true;
}
document.addEventListener('test', handler_once, {once: true});
document.addEventListener('test', handler_normal);
document.dispatchEvent(new Event('test'));
assert_equals(invoked_once, true, "Once handler should be invoked");
assert_equals(invoked_normal, true, "Normal handler should be invoked");
invoked_once = false;
invoked_normal = false;
document.dispatchEvent(new Event('test'));
assert_equals(invoked_once, false, "Once handler shouldn't be invoked again");
assert_equals(invoked_normal, true, "Normal handler should be invoked again");
document.removeEventListener('test', handler_normal);
}, "Once listener should be invoked only once");
test(function() {
var invoked_count = 0;
function handler() {
invoked_count++;
if (invoked_count == 1)
document.dispatchEvent(new Event('test'));
}
document.addEventListener('test', handler, {once: true});
document.dispatchEvent(new Event('test'));
assert_equals(invoked_count, 1, "Once handler should only be invoked once");
invoked_count = 0;
function handler2() {
invoked_count++;
if (invoked_count == 1)
document.addEventListener('test', handler2, {once: true});
if (invoked_count <= 2)
document.dispatchEvent(new Event('test'));
}
document.addEventListener('test', handler2, {once: true});
document.dispatchEvent(new Event('test'));
assert_equals(invoked_count, 2, "Once handler should only be invoked once after each adding");
}, "Once listener should be invoked only once even if the event is nested");
test(function() {
var invoked_count = 0;
function handler() {
invoked_count++;
}
document.addEventListener('test', handler, {once: true});
document.addEventListener('test', handler);
document.dispatchEvent(new Event('test'));
assert_equals(invoked_count, 1, "The handler should only be added once");
invoked_count = 0;
document.dispatchEvent(new Event('test'));
assert_equals(invoked_count, 0, "The handler was added as a once listener");
invoked_count = 0;
document.addEventListener('test', handler, {once: true});
document.removeEventListener('test', handler);
document.dispatchEvent(new Event('test'));
assert_equals(invoked_count, 0, "The handler should have been removed");
}, "Once listener should be added / removed like normal listeners");
</script>