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comparison: js/xpconnect/tests/chrome/test_bug760109.xul
js/xpconnect/tests/chrome/test_bug760109.xul
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| -1:000000000000 | 0:5a099efdc8df |
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| 1 <?xml version="1.0"?> | |
| 2 <?xml-stylesheet type="text/css" href="chrome://global/skin"?> | |
| 3 <?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?> | |
| 4 <!-- | |
| 5 https://bugzilla.mozilla.org/show_bug.cgi?id=760109 | |
| 6 --> | |
| 7 <window title="Mozilla Bug 760109" | |
| 8 xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> | |
| 9 <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/> | |
| 10 | |
| 11 <!-- test results are displayed in the html:body --> | |
| 12 <body xmlns="http://www.w3.org/1999/xhtml"> | |
| 13 <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=760109" | |
| 14 target="_blank">Mozilla Bug 760109</a> | |
| 15 </body> | |
| 16 | |
| 17 <!-- test code goes here --> | |
| 18 <script type="application/javascript"> | |
| 19 <![CDATA[ | |
| 20 | |
| 21 /** Test for COW prototype remapping.**/ | |
| 22 | |
| 23 // This gets decompiled and run inside the sandbox. | |
| 24 function sandboxCode() { | |
| 25 | |
| 26 // Check that COWs for objects with standard prototypes use the standard | |
| 27 // prototype in the home compartment. | |
| 28 ok(Object.getPrototypeOf(chromeArray) === Array.prototype, | |
| 29 "Array prototype remapped properly"); | |
| 30 var protoProto = Object.getPrototypeOf(Object.getPrototypeOf(chromeObject)); | |
| 31 ok(protoProto === Object.prototype, | |
| 32 "Object prototype remapped properly"); | |
| 33 | |
| 34 // Check |constructor|. | |
| 35 // Note that the 'constructor' property of the underlying chrome object | |
| 36 // will be resolved on SomeConstructor.prototype, which has an empty | |
| 37 // __exposedProps__. This means that we shouldn't remap the property, even | |
| 38 // though we'd also be able to find it on Object.prototype. Some recent | |
| 39 // refactoring has made it possible to do the right thing here. | |
| 40 is(typeof chromeObject.constructor, "undefined", "Object constructor does what we expect"); | |
| 41 ok(chromeArray.constructor === Array, "Array constructor remapped properly"); | |
| 42 | |
| 43 // We should be able to .forEach on the Array. | |
| 44 var concat = ''; | |
| 45 chromeArray.forEach(function(val) { concat += val; }); | |
| 46 is(concat, 'abz', "Should be able to .forEach COW-ed Array"); | |
| 47 | |
| 48 // Try other Array operations. | |
| 49 is(chromeArray.indexOf('b'), 1, "indexOf works correctly"); | |
| 50 is(chromeArray.join(''), concat, "join works correctly"); | |
| 51 is(chromeArray.slice(1).join(''), 'bz', "slice works correctly"); | |
| 52 is(chromeArray.length, 3, "Able to check array length"); | |
| 53 | |
| 54 // Try some operations that modify the array. | |
| 55 is(chromeArray.pop(), 'z', "Able to call pop"); | |
| 56 is(chromeArray.push('z'), 3, "Able to call push"); | |
| 57 chromeArray.reverse(); | |
| 58 is(chromeArray.join(''), 'zba', "Able to call reverse"); | |
| 59 chromeArray.sort(); | |
| 60 is(chromeArray.join(''), 'abz', "Able to call sort"); | |
| 61 | |
| 62 // Make sure we can see the data on the typed array | |
| 63 is(chromeTypedArray.length, 3, "Able to check typed array length"); | |
| 64 is(chromeTypedArray[0], 10, "Able to access typed array data"); | |
| 65 | |
| 66 // We should be able to .hasOwnProperty on the Object, and have | |
| 67 // it filter the objects we can see. | |
| 68 ok(chromeObject.hasOwnProperty('foo'), "Should see r property"); | |
| 69 ok(!chromeObject.hasOwnProperty('bar'), "Shouldn't see non-exposed property"); | |
| 70 ok(chromeObject.hasOwnProperty('baz'), "Should see rw property"); | |
| 71 } | |
| 72 | |
| 73 // We use a constructor to create the test object so that there's an | |
| 74 // intermediate object on the prototype chain between the instance and the | |
| 75 // standard prototype. | |
| 76 function SomeConstructor() { | |
| 77 this.foo = 2; | |
| 78 this.bar = 3; | |
| 79 this.baz = 4; | |
| 80 this.__exposedProps__ = {foo: 'r', baz: 'rw'}; | |
| 81 } | |
| 82 SomeConstructor.prototype.__exposedProps__ = {}; | |
| 83 | |
| 84 const Cu = Components.utils; | |
| 85 var sb = new Cu.Sandbox('http://www.example.org'); | |
| 86 sb.chromeArray = ['a', 'b', 'z']; | |
| 87 sb.chromeArray.__exposedProps__ = {}; | |
| 88 sb.chromeTypedArray = new Uint8Array([10, 20, 30]); | |
| 89 sb.chromeObject = new SomeConstructor(); | |
| 90 sb.ok = ok; | |
| 91 sb.is = is; | |
| 92 Cu.evalInSandbox('(' + sandboxCode.toSource() + ')();', sb); | |
| 93 | |
| 94 ]]> | |
| 95 </script> | |
| 96 </window> |
