| <!DOCTYPE HTML> |
| <html> |
| <head> |
| <script src="../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| |
| // Force the window into cacheable dictionary mode. |
| for (var i = 0; i < 100; ++i) |
| window["p" + i] = i; |
| |
| var foo = function(o) { |
| return o.screenX; |
| }; |
| |
| var test = function(id, x) |
| { |
| var niters = 100000; |
| |
| var sum = 0; |
| for (var i = 0; i < niters; ++i) |
| sum += foo(window); |
| |
| if (sum !== x * niters) |
| throw new Error("Incorrect sum for " + id); |
| } |
| |
| var x = window.screenX; |
| test("x", x); |
| |
| var newX = window.screenX + 1; |
| window.screenX = newX; |
| test("newX", newX); |
| </script> |
| <script src="../resources/js-test-post.js"></script> |
| </body> |
| </html> |
