Node-isSameNode.html
<!DOCTYPE html>
<meta charset="utf-8">
<title>Node.prototype.isSameNode</title>
<link rel=help href="https://dom.spec.whatwg.org/#dom-node-issamenode">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
"use strict";
test(function() {
var doctype1 = document.implementation.createDocumentType("qualifiedName", "publicId", "systemId");
var doctype2 = document.implementation.createDocumentType("qualifiedName", "publicId", "systemId");
assert_true(doctype1.isSameNode(doctype1), "self-comparison");
assert_false(doctype1.isSameNode(doctype2), "same properties");
assert_false(doctype1.isSameNode(null), "with null other node");
}, "doctypes should be comapred on reference");
test(function() {
var element1 = document.createElementNS("namespace", "prefix:localName");
var element2 = document.createElementNS("namespace", "prefix:localName");
assert_true(element1.isSameNode(element1), "self-comparison");
assert_false(element1.isSameNode(element2), "same properties");
assert_false(element1.isSameNode(null), "with null other node");
}, "elements should be compared on reference (namespaced element)");
test(function() {
var element1 = document.createElement("element");
element1.setAttributeNS("namespace", "prefix:localName", "value");
var element2 = document.createElement("element");
element2.setAttributeNS("namespace", "prefix:localName", "value");
assert_true(element1.isSameNode(element1), "self-comparison");
assert_false(element1.isSameNode(element2), "same properties");
assert_false(element1.isSameNode(null), "with null other node");
}, "elements should be compared on reference (namespaced attribute)");
test(function() {
var pi1 = document.createProcessingInstruction("target", "data");
var pi2 = document.createProcessingInstruction("target", "data");
assert_true(pi1.isSameNode(pi1), "self-comparison");
assert_false(pi1.isSameNode(pi2), "different target");
assert_false(pi1.isSameNode(null), "with null other node");
}, "processing instructions should be compared on reference");
test(function() {
var text1 = document.createTextNode("data");
var text2 = document.createTextNode("data");
assert_true(text1.isSameNode(text1), "self-comparison");
assert_false(text1.isSameNode(text2), "same properties");
assert_false(text1.isSameNode(null), "with null other node");
}, "text nodes should be compared on reference");
test(function() {
var comment1 = document.createComment("data");
var comment2 = document.createComment("data");
assert_true(comment1.isSameNode(comment1), "self-comparison");
assert_false(comment1.isSameNode(comment2), "same properties");
assert_false(comment1.isSameNode(null), "with null other node");
}, "comments should be compared on reference");
test(function() {
var documentFragment1 = document.createDocumentFragment();
var documentFragment2 = document.createDocumentFragment();
assert_true(documentFragment1.isSameNode(documentFragment1), "self-comparison");
assert_false(documentFragment1.isSameNode(documentFragment2), "same properties");
assert_false(documentFragment1.isSameNode(null), "with null other node");
}, "document fragments should be compared on reference");
test(function() {
var document1 = document.implementation.createDocument("", "");
var document2 = document.implementation.createDocument("", "");
assert_true(document1.isSameNode(document1), "self-comparison");
assert_false(document1.isSameNode(document2), "another empty XML document");
assert_false(document1.isSameNode(null), "with null other node");
}, "documents should not be compared on reference");
</script>