js/src/jit-test/tests/debug/Object-getOwnPropertyDescriptor-01.js@6474c204b198 (annotated)
js/src/jit-test/tests/debug/Object-getOwnPropertyDescriptor-01.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // getOwnPropertyDescriptor works with simple data properties. |
| michael@0 | 2 | |
| michael@0 | 3 | var g = newGlobal(); |
| michael@0 | 4 | var dbg = Debugger(g); |
| michael@0 | 5 | var hits; |
| michael@0 | 6 | var expected; |
| michael@0 | 7 | dbg.onDebuggerStatement = function (frame) { |
| michael@0 | 8 | var args = frame.arguments; |
| michael@0 | 9 | var obj = args[0], id = args[1]; |
| michael@0 | 10 | var desc = obj.getOwnPropertyDescriptor(id); |
| michael@0 | 11 | if (expected === undefined) { |
| michael@0 | 12 | assertEq(desc, undefined); |
| michael@0 | 13 | } else { |
| michael@0 | 14 | assertEq(desc instanceof Object, true); |
| michael@0 | 15 | assertEq(desc.enumerable, expected.enumerable); |
| michael@0 | 16 | assertEq(desc.configurable, expected.configurable); |
| michael@0 | 17 | assertEq(desc.hasOwnProperty("value"), true); |
| michael@0 | 18 | assertEq(desc.value, expected.value); |
| michael@0 | 19 | assertEq(desc.writable, expected.writable === undefined ? true : expected.writable); |
| michael@0 | 20 | assertEq("get" in desc, false); |
| michael@0 | 21 | assertEq("set" in desc, false); |
| michael@0 | 22 | } |
| michael@0 | 23 | hits++; |
| michael@0 | 24 | }; |
| michael@0 | 25 | |
| michael@0 | 26 | g.eval("function f(obj, id) { debugger; }"); |
| michael@0 | 27 | |
| michael@0 | 28 | function test(obj, id, desc) { |
| michael@0 | 29 | expected = desc; |
| michael@0 | 30 | hits = 0; |
| michael@0 | 31 | g.f(obj, id); |
| michael@0 | 32 | assertEq(hits, 1); |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | var obj = g.eval("({a: 1, ' ': undefined, '0': 0})"); |
| michael@0 | 36 | test(obj, "a", {value: 1, enumerable: true, configurable: true}); |
| michael@0 | 37 | test(obj, " ", {value: undefined, enumerable: true, configurable: true}); |
| michael@0 | 38 | test(obj, "b", undefined); |
| michael@0 | 39 | test(obj, "0", {value: 0, enumerable: true, configurable: true}); |
| michael@0 | 40 | test(obj, 0, {value: 0, enumerable: true, configurable: true}); |
| michael@0 | 41 | |
| michael@0 | 42 | var arr = g.eval("[7,,]"); |
| michael@0 | 43 | test(arr, 'length', {value: 2, enumerable: false, configurable: false}); |
| michael@0 | 44 | test(arr, 0, {value: 7, enumerable: true, configurable: true}); |
| michael@0 | 45 | test(arr, "0", {value: 7, enumerable: true, configurable: true}); |
| michael@0 | 46 | test(arr, 1, undefined); |
| michael@0 | 47 | test(arr, "1", undefined); |
| michael@0 | 48 | test(arr, 2, undefined); |
| michael@0 | 49 | test(arr, "2", undefined); |
| michael@0 | 50 | test(arr, "argelfraster", undefined); |
| michael@0 | 51 | |
| michael@0 | 52 | var re = g.eval("/erwe/"); |
| michael@0 | 53 | test(re, 'lastIndex', {value: 0, enumerable: false, configurable: false}); |
| michael@0 | 54 | |
| michael@0 | 55 | // String objects have a well-behaved resolve hook. |
| michael@0 | 56 | var str = g.eval("new String('hello world')"); |
| michael@0 | 57 | test(str, 'length', {value: 11, enumerable: false, configurable: false, writable: false}); |
| michael@0 | 58 | test(str, 0, {value: 'h', enumerable: true, configurable: false, writable: false}); |
| michael@0 | 59 | test(str, "0", {value: 'h', enumerable: true, configurable: false, writable: false}); |
