| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>DocumentType.prepend</title> |
| <link rel=help href="https://dom.spec.whatwg.org/#dom-parentnode-prepend"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| |
| function test_prepend_on_Document() { |
| |
| var node = document.implementation.createDocument(null, null); |
| test(function() { |
| var parent = node.cloneNode(); |
| parent.prepend(); |
| assert_array_equals(parent.childNodes, []); |
| }, 'Document.prepend() without any argument, on a Document having no child.'); |
| |
| test(function() { |
| var parent = node.cloneNode(); |
| var x = document.createElement('x'); |
| parent.prepend(x); |
| assert_array_equals(parent.childNodes, [x]); |
| }, 'Document.prepend() with only one element as an argument, on a Document having no child.'); |
| |
| test(function() { |
| var parent = node.cloneNode(); |
| var x = document.createElement('x'); |
| var y = document.createElement('y'); |
| parent.appendChild(x); |
| assert_throws('HierarchyRequestError', function() { parent.prepend(y); }); |
| assert_array_equals(parent.childNodes, [x]); |
| }, 'Document.append() with only one element as an argument, on a Document having one child.'); |
| |
| test(function() { |
| var parent = node.cloneNode(); |
| assert_throws('HierarchyRequestError', function() { parent.prepend('text'); }); |
| assert_array_equals(parent.childNodes, []); |
| }, 'Document.prepend() with text as an argument, on a Document having no child.'); |
| |
| test(function() { |
| var parent = node.cloneNode(); |
| var x = document.createElement('x'); |
| var y = document.createElement('y'); |
| assert_throws('HierarchyRequestError', function() { parent.prepend(x, y); }); |
| assert_array_equals(parent.childNodes, []); |
| }, 'Document.prepend() with two elements as the argument, on a Document having no child.'); |
| |
| } |
| |
| test_prepend_on_Document(); |
| |
| </script> |
| </html> |
