append-on-Document.html (2021B)
1 <!DOCTYPE html> 2 <meta charset=utf-8> 3 <title>DocumentType.append</title> 4 <link rel=help href="https://dom.spec.whatwg.org/#dom-parentnode-append"> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script> 8 9 function test_append_on_Document() { 10 11 var node = document.implementation.createDocument(null, null); 12 test(function() { 13 var parent = node.cloneNode(); 14 parent.append(); 15 assert_array_equals(parent.childNodes, []); 16 }, 'Document.append() without any argument, on a Document having no child.'); 17 18 test(function() { 19 var parent = node.cloneNode(); 20 var x = document.createElement('x'); 21 parent.append(x); 22 assert_array_equals(parent.childNodes, [x]); 23 }, 'Document.append() with only one element as an argument, on a Document having no child.'); 24 25 test(function() { 26 var parent = node.cloneNode(); 27 var x = document.createElement('x'); 28 var y = document.createElement('y'); 29 parent.appendChild(x); 30 assert_throws_dom('HierarchyRequestError', function() { parent.append(y); }); 31 assert_array_equals(parent.childNodes, [x]); 32 }, 'Document.append() with only one element as an argument, on a Document having one child.'); 33 34 test(function() { 35 var parent = node.cloneNode(); 36 assert_throws_dom('HierarchyRequestError', function() { parent.append('text'); }); 37 assert_array_equals(parent.childNodes, []); 38 }, 'Document.append() with text as an argument, on a Document having no child.'); 39 40 test(function() { 41 var parent = node.cloneNode(); 42 var x = document.createElement('x'); 43 var y = document.createElement('y'); 44 assert_throws_dom('HierarchyRequestError', function() { parent.append(x, y); }); 45 assert_array_equals(parent.childNodes, []); 46 }, 'Document.append() with two elements as the argument, on a Document having no child.'); 47 48 } 49 50 test_append_on_Document(); 51 52 </script> 53 </html>