michael@0: function testOwnPropertyWithInOperator()
michael@0: {
michael@0:   var o = { 0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6 };
michael@0:   var a = [];
michael@0:   for (var i = 0; i < 7; i++)
michael@0:     a.push(i in o);
michael@0:   return a.join(",");
michael@0: }
michael@0: assertEq(testOwnPropertyWithInOperator(), "true,true,true,true,true,true,true");