1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/cross-global-getPrototypeOf.js b/js/src/tests/non262/extensions/cross-global-getPrototypeOf.js
new file mode 100644
index 0000000000..1480a8ea15
--- /dev/null
+++ b/js/src/tests/non262/extensions/cross-global-getPrototypeOf.js
@@ -0,0 +1,55 @@
+// |reftest| skip-if(!xulRuntime.shell) -- needs newGlobal()
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 770344;
+var summary = "Object.getPrototypeOf behavior across compartments";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var other = newGlobal();
+
+var getProto = Object.getPrototypeOf;
+var otherGetProto = other.Object.getPrototypeOf;
+
+var proto = {};
+var obj = Object.create(proto);
+assertEq(getProto(obj), proto);
+assertEq(otherGetProto(obj), proto);
+
+other.proto = proto;
+var otherObj = other.evaluate("Object.create(proto)");
+assertEq(getProto(otherObj), proto);
+assertEq(otherGetProto(otherObj), proto);
+
+var p = other.evaluate("({})");
+var objOtherProto = Object.create(p);
+assertEq(getProto(objOtherProto), p);
+assertEq(otherGetProto(objOtherProto), p);
+
+other.evaluate("var otherProto = { otherProto: 1 }; " +
+               "var otherObj = Object.create(otherProto);");
+assertEq(getProto(other.otherObj), other.otherProto);
+assertEq(otherGetProto(other.otherObj), other.otherProto);
+
+other.evaluate("var newOtherProto = { newOtherProto: 1 }; " +
+               "otherObj.__proto__ = newOtherProto;");
+assertEq(otherGetProto(other.otherObj), other.newOtherProto);
+
+// TODO This assertion fails due to bug 764307
+//assertEq(getProto(other.otherObj), other.newOtherProto);
+
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");