| <!DOCTYPE html> |
| <link rel="help" href="https://wicg.github.io/layout-instability/" /> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/util.js"></script> |
| <div id="multicol" style="position:relative; columns:40; width:500px; column-gap:0;"> |
| <div style="height:4000px; background:black;"></div> |
| </div> |
| <script> |
| |
| promise_test(async () => { |
| const watcher = new ScoreWatcher; |
| await waitForAnimationFrames(2); |
| |
| multicol.style.top = '100px'; |
| const expectedScore = computeExpectedScore(500 * (100 + 100), 100); |
| |
| await watcher.promise; |
| assert_equals(watcher.score, expectedScore); |
| }, 'Move balanced multicol container'); |
| |
| </script> |