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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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30
js/xpconnect/tests/unit/test_allowWaivers.js Normal file
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const Cu = Components.utils;
function checkWaivers(from, allowed) {
var sb = new Cu.Sandbox('http://example.com');
from.test = sb.eval('var o = {prop: 2, f: function() {return 42;}}; o');
// Make sure that |from| has Xrays to sb.
do_check_eq(from.eval('test.prop'), 2);
do_check_eq(from.eval('test.f'), undefined);
// Make sure that waivability works as expected.
do_check_eq(from.eval('!!test.wrappedJSObject'), allowed);
do_check_eq(from.eval('XPCNativeWrapper.unwrap(test) !== test'), allowed);
// Make a sandbox with the same principal as |from|, but without any waiver
// restrictions, and make sure that the waiver does not transfer.
var friend = new Cu.Sandbox(Cu.getObjectPrincipal(from));
friend.test = from.test;
friend.eval('var waived = test.wrappedJSObject;');
do_check_true(friend.eval('waived.f()'), 42);
friend.from = from;
friend.eval('from.waived = waived');
do_check_eq(from.eval('!!waived.f'), allowed);
}
function run_test() {
checkWaivers(new Cu.Sandbox('http://example.com'), true);
checkWaivers(new Cu.Sandbox('http://example.com', {allowWaivers: false}), false);
checkWaivers(new Cu.Sandbox(['http://example.com']), true);
checkWaivers(new Cu.Sandbox(['http://example.com'], {allowWaivers: false}), false);
}