gecko-dev/testing/mochitest/chrome/test_sanityAddTask.xul

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<?xml version="1.0"?>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css"
type="text/css"?>
<window title="Test spawnTawk function"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript"
src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
<script type="application/javascript"
src="chrome://mochikit/content/tests/SimpleTest/SpawnTask.js"/>
<script type="application/javascript">
<![CDATA[
// Check that we can 'add_task' a few times and all tasks run asynchronously before test finishes.
add_task(function* () {
var x = yield Promise.resolve(1);
is(x, 1, "task yields Promise value as expected");
});
add_task(function* () {
var x = yield [Promise.resolve(1), Promise.resolve(2), Promise.resolve(3)];
is(x.join(""), "123", "task yields Promise value as expected");
});
add_task(function* () {
var x = yield (function* () {
return 3;
}());
is(x, 3, "task yields generator function return value as expected");
});
]]>
</script>
<body xmlns="http://www.w3.org/1999/xhtml" >
</body>
</window>