gecko-dev/dom/xbl/test/test_bug398135.xul

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<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=398135
-->
<window title="Mozilla Bug 398135"
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">window.log = ""</script>
<bindings xmlns="http://www.mozilla.org/xbl">
<binding id="ancestor">
<implementation>
<constructor>
window.log += "ancestorConstructor:";
</constructor>
<destructor>
window.log += "ancestorDestructor:";
</destructor>
<field name="ancestorField">"ancestorField"</field>
<property name="ancestorProp" onget="return 'ancestorProp'"/>
<method name="ancestorMethod">
<body>
return "ancestorMethod";
</body>
</method>
</implementation>
</binding>
<binding id="test" extends="#ancestor">
<implementation>
<constructor>
window.log += "descendantConstructor:";
</constructor>
<destructor>
window.log += "descendantDestructor:";
</destructor>
<field name="descendantField">"descendantField"</field>
<field name="contentField">
document.getAnonymousNodes(this)[0];
</field>
<property name="descendantProp" onget="return 'descendantProp'"/>
<method name="descendantMethod">
<body>
return "descendantMethod";
</body>
</method>
</implementation>
<content>
<span/>
<children/>
</content>
</binding>
</bindings>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=398135"
target="_blank">Mozilla Bug 398135</a>
</body>
<hbox id="display" style="-moz-binding: url(#test)"></hbox>
<script type="application/javascript">
<![CDATA[
/** Test for Bug 398135 **/
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
var d;
d = $("display");
function testInTree(type) {
is(d.ancestorField, "ancestorField", "Wrong ancestor field " + type);
is(d.descendantField, "descendantField", "Wrong descendant field " + type);
is(d.ancestorProp, "ancestorProp", "Wrong ancestor prop " + type);
is(d.descendantProp, "descendantProp", "Wrong descendant prop " + type);
is(d.ancestorMethod(), "ancestorMethod", "Wrong ancestor method " + type);
is(d.descendantMethod(), "descendantMethod",
"Wrong descendant method " + type);
is(d.contentField, document.getAnonymousNodes(d)[0],
"Unexpected content field " + type);
}
function testNotInTree(type) {
is(typeof(d.ancestorField), "undefined", "Wrong ancestor field " + type);
is(typeof(d.descendantField), "undefined",
"Wrong descendant field " + type);
is(typeof(d.ancestorProp), "undefined", "Wrong ancestor prop " + type);
is(typeof(d.descendantProp), "undefined", "Wrong descendant prop " + type);
is(typeof(d.ancestorMethod), "undefined", "Wrong ancestor method " + type);
is(typeof(d.descendantMethod), "undefined",
"Wrong descendant method " + type);
is(typeof(d.contentField), "undefined",
"Unexpected content field " + type);
}
is(window.log, "ancestorConstructor:descendantConstructor:",
"Constructors did not fire?");
window.log = "";
testInTree("before removal");
var parent = d.parentNode;
var nextSibling = d.nextSibling;
parent.removeChild(d);
testNotInTree("after first removal");
todo(window.log == "descendantDestructor:ancestorDestructor:",
"Destructors did not fire");
window.log = "";
parent.insertBefore(d, nextSibling);
is(window.log, "ancestorConstructor:descendantConstructor:",
"Constructors did not fire a second time?");
window.log = "";
testInTree("after reinsertion");
// Now munge the proto chain to test the robustness of the proto-unhooking
// code
var origProto = d.__proto__;
var origProtoProto = origProto.__proto__;
var newProto = new Object();
origProto.__proto__ = newProto;
newProto.__proto__ = origProtoProto;
parent.removeChild(d);
todo(window.log == "descendantDestructor:ancestorDestructor:",
"Destructors did not fire a second time?");
testNotInTree("after second removal");
});
addLoadEvent(SimpleTest.finish);
]]>
</script>
</window>