| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| <html> |
| <head> |
| <script src="../resources/accessibility-helper.js"></script> |
| <script src="../resources/js-test.js"></script> |
| </head> |
| <body> |
| |
| <script> |
| var output = "This test ensures we can access content inside a deep DOM without crashing.\n\n"; |
| |
| let container = document.body; |
| // 509 because the maximum allowed depth is 512. The containing body and html elements bring us from 509 to 511, and |
| // we want a button all the way in the deepest part of the tree as the 512th layer. |
| for (let i = 0; i < 509; i++) { |
| const div = document.createElement("div"); |
| container.appendChild(div); |
| container = div; |
| } |
| |
| container.setAttribute("role", "presentation"); |
| let button = document.createElement("button"); |
| button.innerText = "Press"; |
| container.appendChild(button); |
| |
| if (window.accessibilityController) { |
| window.jsTestIsAsync = true; |
| |
| var webArea = accessibilityController.rootElement.childAtIndex(0); |
| setTimeout(async function() { |
| output += await expectAsync("webArea.childAtIndex(0)?.role.toLowerCase().includes('button')", "true"); |
| |
| debug(output); |
| finishJSTest(); |
| }, 0); |
| } |
| </script> |
| </body> |
| </html> |
| |
