| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <title>XPathResult singleNodeValue should be nullable</title> |
| <link rel=help href="https://dom.spec.whatwg.org/#dom-xpathresult-singlenodevalue"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <div id="div"> |
| <span id="exist"></span> |
| </div> |
| <script> |
| test(() => { |
| const div = document.getElementById('div'); |
| |
| const isNull = document.evaluate( |
| '//non-span', |
| div, |
| null, |
| XPathResult.FIRST_ORDERED_NODE_TYPE, |
| null |
| ); |
| assert_equals(isNull.singleNodeValue, null); |
| |
| const isNotNull = document.evaluate( |
| '//span', |
| div, |
| null, |
| XPathResult.FIRST_ORDERED_NODE_TYPE, |
| null |
| ); |
| assert_not_equals(isNotNull.singleNodeValue, null); |
| }, 'singleNodeValue should be nullable'); |
| </script> |
| </body> |
