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comparison: js/src/jit-test/tests/debug/Object-getOwnPropertyDescriptor-01.js
js/src/jit-test/tests/debug/Object-getOwnPropertyDescriptor-01.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:2d2b654f377f |
|---|---|
| 1 // getOwnPropertyDescriptor works with simple data properties. | |
| 2 | |
| 3 var g = newGlobal(); | |
| 4 var dbg = Debugger(g); | |
| 5 var hits; | |
| 6 var expected; | |
| 7 dbg.onDebuggerStatement = function (frame) { | |
| 8 var args = frame.arguments; | |
| 9 var obj = args[0], id = args[1]; | |
| 10 var desc = obj.getOwnPropertyDescriptor(id); | |
| 11 if (expected === undefined) { | |
| 12 assertEq(desc, undefined); | |
| 13 } else { | |
| 14 assertEq(desc instanceof Object, true); | |
| 15 assertEq(desc.enumerable, expected.enumerable); | |
| 16 assertEq(desc.configurable, expected.configurable); | |
| 17 assertEq(desc.hasOwnProperty("value"), true); | |
| 18 assertEq(desc.value, expected.value); | |
| 19 assertEq(desc.writable, expected.writable === undefined ? true : expected.writable); | |
| 20 assertEq("get" in desc, false); | |
| 21 assertEq("set" in desc, false); | |
| 22 } | |
| 23 hits++; | |
| 24 }; | |
| 25 | |
| 26 g.eval("function f(obj, id) { debugger; }"); | |
| 27 | |
| 28 function test(obj, id, desc) { | |
| 29 expected = desc; | |
| 30 hits = 0; | |
| 31 g.f(obj, id); | |
| 32 assertEq(hits, 1); | |
| 33 } | |
| 34 | |
| 35 var obj = g.eval("({a: 1, ' ': undefined, '0': 0})"); | |
| 36 test(obj, "a", {value: 1, enumerable: true, configurable: true}); | |
| 37 test(obj, " ", {value: undefined, enumerable: true, configurable: true}); | |
| 38 test(obj, "b", undefined); | |
| 39 test(obj, "0", {value: 0, enumerable: true, configurable: true}); | |
| 40 test(obj, 0, {value: 0, enumerable: true, configurable: true}); | |
| 41 | |
| 42 var arr = g.eval("[7,,]"); | |
| 43 test(arr, 'length', {value: 2, enumerable: false, configurable: false}); | |
| 44 test(arr, 0, {value: 7, enumerable: true, configurable: true}); | |
| 45 test(arr, "0", {value: 7, enumerable: true, configurable: true}); | |
| 46 test(arr, 1, undefined); | |
| 47 test(arr, "1", undefined); | |
| 48 test(arr, 2, undefined); | |
| 49 test(arr, "2", undefined); | |
| 50 test(arr, "argelfraster", undefined); | |
| 51 | |
| 52 var re = g.eval("/erwe/"); | |
| 53 test(re, 'lastIndex', {value: 0, enumerable: false, configurable: false}); | |
| 54 | |
| 55 // String objects have a well-behaved resolve hook. | |
| 56 var str = g.eval("new String('hello world')"); | |
| 57 test(str, 'length', {value: 11, enumerable: false, configurable: false, writable: false}); | |
| 58 test(str, 0, {value: 'h', enumerable: true, configurable: false, writable: false}); | |
| 59 test(str, "0", {value: 'h', enumerable: true, configurable: false, writable: false}); |
