| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>HTMLSelectElement Test: add()</title> |
| <link rel="author" title="Intel" href="http://www.intel.com/"> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/form-elements.html#dom-select-add-dev"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <form style="display:none"> |
| <option id="testoption"> |
| <select id="testselect1"> |
| </select> |
| <select id="testselect2"> |
| <option>TEST</option> |
| </select> |
| </option> |
| </form> |
| |
| <script> |
| |
| test(() => { |
| let testselect1 = document.getElementById("testselect1"); |
| let opt1 = new Option("Marry","1"); |
| testselect1.add(opt1); |
| assert_equals(testselect1.options[0].value, "1"); |
| }, "test that HTMLSelectElement.add method can add option element"); |
| |
| test(() => { |
| let testselect2 = document.getElementById("testselect2"); |
| let opt2 = document.getElementById("testoption"); |
| assert_throws_dom("HierarchyRequestError", () => { |
| testselect2.add(opt2); |
| }); |
| }, "test that HierarchyRequestError exception must be thrown when element is an ancestor of the element into which it is to be inserted"); |
| |
| </script> |
