| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <select required></select> |
| <script> |
| var t = async_test('Ensure that adding an OPTION to a SELECT element closes a validation bubble.'); |
| var select = document.querySelector('select'); |
| t.step(() => { |
| assert_own_property(window, 'internals'); |
| select.reportValidity(); |
| assert_true(internals.isValidationMessageVisible(select)); |
| select.appendChild(new Option('value')); |
| t.step_timeout(() => { |
| assert_false(internals.isValidationMessageVisible(select)); |
| t.done(); |
| }, 100); |
| }); |
| </script> |
