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-rw-r--r--js/xpconnect/tests/unit/test_bug872772.js33
1 files changed, 33 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_bug872772.js b/js/xpconnect/tests/unit/test_bug872772.js
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+++ b/js/xpconnect/tests/unit/test_bug872772.js
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+function run_test() {
+
+ // Make a content sandbox with an Xrayable object.
+ // NB: We use an nsEP here so that we can have access to Components, but still
+ // have Xray behavior from this scope.
+ var contentSB = new Cu.Sandbox(['http://www.google.com'],
+ { wantGlobalProperties: ["XMLHttpRequest"] });
+
+ // Make an XHR in the content sandbox.
+ Cu.evalInSandbox('xhr = new XMLHttpRequest();', contentSB);
+
+ // Make sure that waivers can be set as Xray expandos.
+ var xhr = contentSB.xhr;
+ Assert.ok(Cu.isXrayWrapper(xhr));
+ xhr.unwaivedExpando = xhr;
+ Assert.ok(Cu.isXrayWrapper(xhr.unwaivedExpando));
+ var waived = xhr.wrappedJSObject;
+ Assert.ok(!Cu.isXrayWrapper(waived));
+ xhr.waivedExpando = waived;
+ Assert.ok(!Cu.isXrayWrapper(xhr.waivedExpando));
+
+ // Try the same thing for getters/setters, even though that's kind of
+ // contrived.
+ Cu.evalInSandbox('function f() {}', contentSB);
+ var f = contentSB.f;
+ var fWaiver = Cu.waiveXrays(f);
+ Assert.ok(f != fWaiver);
+ Assert.ok(Cu.unwaiveXrays(fWaiver) === f);
+ Object.defineProperty(xhr, 'waivedAccessors', {get: fWaiver, set: fWaiver});
+ var desc = Object.getOwnPropertyDescriptor(xhr, 'waivedAccessors');
+ Assert.ok(desc.get === fWaiver);
+ Assert.ok(desc.set === fWaiver);
+}