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60 lines
3.0 KiB
HTML
60 lines
3.0 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=793969
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-->
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<head>
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<meta charset="utf-8">
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<title>Test for Bug 793969</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=793969">Mozilla Bug 793969</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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</div>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 793969 **/
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function checkThrows(f, desc, skipMessageCheck) {
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try {
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f();
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ok(false, "Should have thrown for " + desc);
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} catch (e) {
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ok(true, "threw correctly");
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if (!skipMessageCheck)
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ok(/denied/.exec(e), "Correctly threw a security exception: " + e);
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}
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}
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// NB: These sets will be no-ops (throw in strict mode) because setting an inherited readonly value prop has those semantics.
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checkThrows(function() { "use strict"; location.valueOf = 'hah'; }, 'Shadow with string', /* skipMessageCheck = */ true);
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checkThrows(function() { "use strict"; location.valueOf = function() { return {a: 'hah'};} }, 'Shadow with function', /* skipMessageCheck = */ true);
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checkThrows(function() { Object.defineProperty(location, 'valueOf', { value: function() { return 'hah'; } }); }, 'defineProperty with value');
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checkThrows(function() { delete location.valueOf; Object.defineProperty(location, 'valueOf', { value: function() { return 'hah'; } }); }, 'delete + defineProperty with value');
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checkThrows(function() { Object.defineProperty(location, 'valueOf', { getter: function() { return 'hah'; } }); }, 'defineProperty with getter');
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checkThrows(function() { delete location.valueOf; Object.defineProperty(location, 'valueOf', { getter: function() { return 'hah'; } }); }, 'delete + defineProperty with getter');
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Object.prototype.valueOf = function() { return 'hah'; };
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is(({}).valueOf(), 'hah', "Shadowing on Object.prototype works for vanilla objects");
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is(location.valueOf(), location, "Shadowing on Object.prototype and Location.prototype doesn't for location objects");
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// Make sure that Location.prototype can't be mucked with.
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function checkProto() {
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"use strict"
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checkThrows(function() { Location.prototype.foo = 'hah'; }, 'adding new property to Location.prototype', /* skipMessageCheck = */ true);
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checkThrows(function() { Location.prototype.valueOf = 'hah'; }, 'defining valueOf on Location.prototype', /* skipMessageCheck = */ true);
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checkThrows(function() { delete Location.prototype.toString; }, 'deleting property on Location.prototype', /* skipMessageCheck = */ true);
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checkThrows(function() { Location.prototype.toString = 'hah'; }, 'setting property on Location.prototype', /* skipMessageCheck = */ true);
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checkThrows(function() { Object.defineProperty(Location.prototype, 'toString', {value: 'hah'}); }, 'defining property on Location.prototype', /* skipMessageCheck = */ true);
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};
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checkProto();
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</script>
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</pre>
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</body>
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</html>
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