| <!DOCTYPE HTML> |
| <script src='../../resources/testharness.js'></script> |
| <script src='../../resources/testharnessreport.js'></script> |
| <script src='../../resources/gesture-util.js'></script> |
| |
| <div id="dv" style="overflow: auto; width: 200px; height: 200px; |
| whitespace: nowrap;"> |
| <div style="width:300px; height:300px"> |
| Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do |
| eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad |
| minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip |
| ex ea commodo consequat. Duis aute irure dolor in reprehenderit in |
| voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur |
| sint occaecat cupidatat non proident, sunt in culpa qui officia |
| deserunt mollit anim id est laborum |
| </div> |
| </div> |
| |
| |
| <script> |
| promise_test(async () => { |
| var scrollCount = 0; |
| var target = document.getElementById('dv'); |
| var target_center = elementCenter(target); |
| target.addEventListener('scroll', function(event) { |
| if(this.firstElementChild) |
| this.removeChild(this.firstElementChild); |
| scrollCount++; |
| }); |
| |
| await wheelTick(0, 1, target_center); |
| await wheelTick(0, 1, target_center); |
| assert_greater_than(scrollCount, 1); |
| assert_equals(target.children.length, 0); |
| }, "No crash when a child is removed while its parent is scrolling."); |
| |
| </script> |