| <!doctype html> |
| <script src="../resources/runner.js"></script> |
| <textarea id="text" style="width:300px; height:300px" spellcheck="false"></textarea> |
| <script> |
| const kCount = 10; |
| const kLines = 20000 |
| const kCharactersPerPage = 482; |
| |
| text.textContent = (() => { |
| const result = []; |
| for (let count = 0; count < kLines; ++count) |
| result.push(`${('00000' + count).slice(-5)} of brown foxes\n`); |
| return result.join(''); |
| })(); |
| text.focus(); |
| |
| PerfTestRunner.measureRunsPerSecond({ |
| description: 'Measures performance of move-page-down on many lines', |
| run: () => { |
| const cursorIndex = text.value.length - 1 - kCharactersPerPage * kCount; |
| text.setSelectionRange(cursorIndex, cursorIndex); |
| for (let counter = 0; counter < kCount; ++counter) |
| testRunner.execCommand("MovePageDown"); |
| }, |
| }); |
| </script> |
