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+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+ <head>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+ </head>
+ <body>
+ <script type="application/javascript">
+ window.Worker = 17; // resolve through assignment
+
+ var desc = Object.getOwnPropertyDescriptor(window, "Worker");
+ ok(typeof desc === "object" && desc !== null, "Worker property must exist");
+
+ is(desc.value, 17, "Overwrite didn't work correctly");
+ is(desc.enumerable, false,
+ "Initial descriptor was non-enumerable, and [[Put]] changes the " +
+ "property value but not its enumerability");
+ is(desc.configurable, true,
+ "Initial descriptor was configurable, and [[Put]] changes the " +
+ "property value but not its configurability");
+ is(desc.writable, true,
+ "Initial descriptor was writable, and [[Put]] changes the " +
+ "property value but not its writability");
+ </script>
+ </body>
+</html>