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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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79
js/xpconnect/tests/unit/test_classesByID_instanceof.js Normal file
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function testActual(SimpleURIClassByID)
{
var simpleURI =
Components.classes["@mozilla.org/network/simple-uri;1"].createInstance();
do_check_eq(simpleURI instanceof SimpleURIClassByID, true);
}
function testInherited(SimpleURIClassByID)
{
var simpleURI =
Components.classes["@mozilla.org/network/simple-uri;1"].createInstance();
var inherited = Object.create(simpleURI);
do_check_eq(inherited instanceof SimpleURIClassByID, true);
}
function testInheritedCrossGlobal(SimpleURIClassByID)
{
var simpleURI =
Components.classes["@mozilla.org/network/simple-uri;1"].createInstance();
var sb = new Components.utils.Sandbox(this, { wantComponents: true });
var inheritedCross = sb.Object.create(simpleURI);
do_check_eq(inheritedCross instanceof SimpleURIClassByID, true);
}
function testCrossGlobalArbitraryGetPrototype(SimpleURIClassByID)
{
var simpleURI =
Components.classes["@mozilla.org/network/simple-uri;1"].createInstance();
var sb = new Components.utils.Sandbox(this, { wantComponents: true });
var firstLevel = Object.create(simpleURI);
var obj = { shouldThrow: false };
var secondLevel =
new sb.Proxy(Object.create(firstLevel),
{
getPrototypeOf: new sb.Function("obj", `return function(t) {
if (obj.shouldThrow)
throw 42;
return Reflect.getPrototypeOf(t);
};`)(obj)
});
var thirdLevel = Object.create(secondLevel);
obj.shouldThrow = true;
var threw = false;
var err;
try
{
void (thirdLevel instanceof SimpleURIClassByID);
}
catch (e)
{
threw = true;
err = e;
}
do_check_eq(threw, true);
do_check_eq(err, 42);
obj.shouldThrow = false;
do_check_eq(thirdLevel instanceof SimpleURIClassByID, true);
}
function run_test() {
var SimpleURIClassByID = Components.classesByID["{e0da1d70-2f7b-11d3-8cd0-0060b0fc14a3}"];
testActual(SimpleURIClassByID);
testInherited(SimpleURIClassByID);
testInheritedCrossGlobal(SimpleURIClassByID);
testCrossGlobalArbitraryGetPrototype(SimpleURIClassByID);
}