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24 lines
1.1 KiB
JavaScript
24 lines
1.1 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* See https://bugzilla.mozilla.org/show_bug.cgi?id=780370 */
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const Cu = Components.utils;
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// Use a COW to expose a function from a standard prototype, and make sure it's
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// still remapped.
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function run_test()
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{
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var sb = Cu.Sandbox("http://www.example.com");
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sb.obj = { foo: 42, __exposedProps__: { hasOwnProperty: 'r' } };
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do_check_eq(Cu.evalInSandbox('typeof obj.foo', sb), 'undefined', "COW works as expected");
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do_check_true(Cu.evalInSandbox('obj.hasOwnProperty === Object.prototype.hasOwnProperty', sb),
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"Remapping happens even when the property is explicitly exposed");
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// NB: We used to test for the following, but such behavior became very
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// difficult to implement in a recent refactor. We're moving away from this
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// API anyway, so we decided to explicitly drop support for this.
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// do_check_eq(Cu.evalInSandbox('Object.prototype.bar = 10; obj.bar', sb), 10);
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}
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