michael@0: // assignments to watched objects must not be cached
michael@0: var obj = {x: 0};
michael@0: var hits = 0;
michael@0: obj.watch("x", function (id, oldval, newval) { hits++; return newval; });
michael@0: for (var i = 0; i < 10; i++)
michael@0:     obj.x = i;
michael@0: assertEq(hits, 10);