| <!DOCTYPE html> |
| <div id="element"></div> |
| |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| test(function () { |
| if (!window.internals) |
| assert_unreached('This test requires window.internals.'); |
| |
| assert_greater_than(internals.updateStyleAndReturnAffectedElementCount(), 1); |
| |
| element.style.top = "0px"; |
| assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1); |
| |
| for (var i = 0; i < 100; i ++) { |
| element.style.top = "0px"; |
| assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 0); |
| } |
| }, "Check that a no-op inline style change doesn't result in a recalc"); |
| </script> |
