| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>Document.implementation</title> |
| <link rel=help href="https://dom.spec.whatwg.org/#dom-document-implementation"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="log"></div> |
| <script> |
| test(function() { |
| var implementation = document.implementation; |
| assert_true(implementation instanceof DOMImplementation, |
| "implementation should implement DOMImplementation"); |
| assert_equals(document.implementation, implementation); |
| }, "Getting implementation off the same document"); |
| |
| test(function() { |
| var doc = document.implementation.createHTMLDocument(); |
| assert_not_equals(document.implementation, doc.implementation); |
| }, "Getting implementation off different documents"); |
| </script> |
