| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| |
| <details style="display:none"> |
| <summary>Click me</summary> |
| Blah, blah, ... |
| </detail> |
| |
| <script> |
| test(() => { |
| const summary = document.querySelector('summary'); |
| const details = document.querySelector('details'); |
| assert_false(details.open); |
| summary.click(); |
| assert_true(details.open); |
| summary.click(); |
| assert_false(details.open); |
| }, 'click() on hidden SUMMARY should toggle DETAILS.'); |
| </script> |
