dom/tests/mochitest/webcomponents/test_document_register_base_queue.html

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/tests/mochitest/webcomponents/test_document_register_base_queue.html	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,48 @@
     1.4 +<!DOCTYPE HTML>
     1.5 +<html>
     1.6 +<!--
     1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=783129
     1.8 +-->
     1.9 +<head>
    1.10 +  <title>Test for document.registerElement lifecycle callback</title>
    1.11 +  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
    1.12 +<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
    1.13 +<script>
    1.14 +var p = Object.create(HTMLElement.prototype);
    1.15 +
    1.16 +var createdCallbackCallCount = 0;
    1.17 +
    1.18 +// By the time the base element queue is processed via the microtask,
    1.19 +// both x-hello elements should be in the document.
    1.20 +p.createdCallback = function() {
    1.21 +  var one = document.getElementById("one");
    1.22 +  var two = document.getElementById("two");
    1.23 +  isnot(one, null, "First x-hello element should be in the tree.");
    1.24 +  isnot(two, null, "Second x-hello element should be in the tree.");
    1.25 +  createdCallbackCallCount++;
    1.26 +  if (createdCallbackCallCount == 2) {
    1.27 +    SimpleTest.finish();
    1.28 +  }
    1.29 +
    1.30 +  if (createdCallbackCallCount > 2) {
    1.31 +    ok(false, "Created callback called too much.");
    1.32 +  }
    1.33 +};
    1.34 +
    1.35 +p.attributeChangedCallback = function(name, oldValue, newValue) {
    1.36 +  ok(false, "Attribute changed callback should not be called because callbacks should not be queued until created callback invoked.");
    1.37 +};
    1.38 +
    1.39 +document.registerElement("x-hello", { prototype: p });
    1.40 +
    1.41 +SimpleTest.waitForExplicitFinish();
    1.42 +</script>
    1.43 +</head>
    1.44 +<body>
    1.45 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=783129">Bug 783129</a>
    1.46 +<x-hello id="one"></x-hello>
    1.47 +<x-hello id="two"></x-hello>
    1.48 +<script>
    1.49 +</script>
    1.50 +</body>
    1.51 +</html>

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