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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: a3e01e5be250ecebeeefc5e5faf65a8a47f89e64 authored by James Graham on 13 February 2017, 10:16:48 UTC
Pass --enable-experimental-web-platform-features to Chrome instability checker
Tip revision: a3e01e5
append-on-Document.html 
<!DOCTYPE html>
<meta charset=utf-8>
<title>DocumentType.append</title>
<link rel=help href="https://dom.spec.whatwg.org/#dom-parentnode-append">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>

function test_append_on_Document() {

    var node = document.implementation.createDocument(null, null);
    test(function() {
        var parent = node.cloneNode();
        parent.append();
        assert_array_equals(parent.childNodes, []);
    }, 'Document.append() without any argument, on a Document having no child.');

    test(function() {
        var parent = node.cloneNode();
        var x = document.createElement('x');
        parent.append(x);
        assert_array_equals(parent.childNodes, [x]);
    }, 'Document.append() 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.append(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.append('text'); });
        assert_array_equals(parent.childNodes, []);
    }, 'Document.append() 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.append(x, y); });
        assert_array_equals(parent.childNodes, []);
    }, 'Document.append() with two elements as the argument, on a Document having no child.');

}

test_append_on_Document();

</script>
</html>
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