michael@0: // getOwnPropertyDescriptor works with simple data properties.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger(g);
michael@0: var hits;
michael@0: var expected;
michael@0: dbg.onDebuggerStatement = function (frame) {
michael@0:     var args = frame.arguments;
michael@0:     var obj = args[0], id = args[1];
michael@0:     var desc = obj.getOwnPropertyDescriptor(id);
michael@0:     if (expected === undefined) {
michael@0:         assertEq(desc, undefined);
michael@0:     } else {
michael@0:         assertEq(desc instanceof Object, true);
michael@0:         assertEq(desc.enumerable, expected.enumerable);
michael@0:         assertEq(desc.configurable, expected.configurable);
michael@0:         assertEq(desc.hasOwnProperty("value"), true);
michael@0:         assertEq(desc.value, expected.value);
michael@0:         assertEq(desc.writable, expected.writable === undefined ? true : expected.writable);
michael@0:         assertEq("get" in desc, false);
michael@0:         assertEq("set" in desc, false);
michael@0:     }
michael@0:     hits++;
michael@0: };
michael@0: 
michael@0: g.eval("function f(obj, id) { debugger; }");
michael@0: 
michael@0: function test(obj, id, desc) {
michael@0:     expected = desc;
michael@0:     hits = 0;
michael@0:     g.f(obj, id);
michael@0:     assertEq(hits, 1);
michael@0: }
michael@0: 
michael@0: var obj = g.eval("({a: 1, ' ': undefined, '0': 0})");
michael@0: test(obj, "a", {value: 1, enumerable: true, configurable: true});
michael@0: test(obj, " ", {value: undefined, enumerable: true, configurable: true});
michael@0: test(obj, "b", undefined);
michael@0: test(obj, "0", {value: 0, enumerable: true, configurable: true});
michael@0: test(obj, 0, {value: 0, enumerable: true, configurable: true});
michael@0: 
michael@0: var arr = g.eval("[7,,]");
michael@0: test(arr, 'length', {value: 2, enumerable: false, configurable: false});
michael@0: test(arr, 0, {value: 7, enumerable: true, configurable: true});
michael@0: test(arr, "0", {value: 7, enumerable: true, configurable: true});
michael@0: test(arr, 1, undefined);
michael@0: test(arr, "1", undefined);
michael@0: test(arr, 2, undefined);
michael@0: test(arr, "2", undefined);
michael@0: test(arr, "argelfraster", undefined);
michael@0: 
michael@0: var re = g.eval("/erwe/");
michael@0: test(re, 'lastIndex', {value: 0, enumerable: false, configurable: false});
michael@0: 
michael@0: // String objects have a well-behaved resolve hook.
michael@0: var str = g.eval("new String('hello world')");
michael@0: test(str, 'length', {value: 11, enumerable: false, configurable: false, writable: false});
michael@0: test(str, 0, {value: 'h', enumerable: true, configurable: false, writable: false});
michael@0: test(str, "0", {value: 'h', enumerable: true, configurable: false, writable: false});