michael@0: var obj = {firstAttr: 'value', secondAttr: 'another value'};
michael@0: 
michael@0: (function() {
michael@0:     for (var i = 0; i < 12; ++i) {
michael@0:         var name;
michael@0:         if (i < 4)
michael@0:             name = 'firstAttr';
michael@0:         else if (i < 8)
michael@0:             name = 'secondAttr';
michael@0:         else
michael@0:             name = 'firstAttr';
michael@0: 
michael@0:         var result = obj[name];
michael@0: 
michael@0:         switch (name) {
michael@0:           case 'firstAttr': assertEq(result, 'value'); break;
michael@0:           case 'secondAttr': assertEq(result, 'another value'); break;
michael@0:         }
michael@0:     }
michael@0: })();
michael@0: 
michael@0: /* Toggle lookup between two ids. */