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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: 7ccdbbe93ecf52b16e9a0c54d09a44890a3d1b9b authored by James Graham on 23 August 2018, 17:02:11 UTC
Update manifest before tests
Tip revision: 7ccdbbe
connected-callbacks.html 
<!DOCTYPE html>
<html>
<head>
<title>Custom Elements: connectedCallback</title>
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
<meta name="assert" content="connectedCallback must be enqueued whenever custom element is inserted into a document">
<link rel="help" href="https://w3c.github.io/webcomponents/spec/custom/#dfn-connected-callback">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/custom-elements-helpers.js"></script>
</head>
<body>
<div id="log"></div>
<script>

var calls = [];
class MyCustomElement extends HTMLElement {
    connectedCallback() { calls.push('connected', this); }
    disconnectedCallback() { calls.push('disconnected', this); }
}
customElements.define('my-custom-element', MyCustomElement);

document_types().forEach(function (entry) {
    var documentName = entry.name;
    var getDocument = entry.create;

    promise_test(function () {
        return getDocument().then(function (doc) {
            var instance = document.createElement('my-custom-element');
            calls = [];
            doc.documentElement.appendChild(instance);
            assert_array_equals(calls, ['connected', instance]);
        });
    }, 'Inserting a custom element into ' + documentName + ' must enqueue and invoke connectedCallback');

    promise_test(function () {
        return getDocument().then(function (doc) {
            var instance = document.createElement('my-custom-element');
            var parent = document.createElement('div');
            parent.appendChild(instance);
            calls = [];
            doc.documentElement.appendChild(parent);
            assert_array_equals(calls, ['connected', instance]);
        });
    }, 'Inserting an ancestor of custom element into ' + documentName + ' must enqueue and invoke connectedCallback');

    promise_test(function () {
        return getDocument().then(function (doc) {
            var instance = document.createElement('my-custom-element');
            var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div');
            var shadowRoot = host.attachShadow({mode: 'closed'});
            doc.documentElement.appendChild(host);

            calls = [];
            shadowRoot.appendChild(instance);
            assert_array_equals(calls, ['connected', instance]);
        });
    }, 'Inserting a custom element into a shadow tree in ' + documentName + ' must enqueue and invoke connectedCallback');

    promise_test(function () {
        return getDocument().then(function (doc) {
            var instance = document.createElement('my-custom-element');
            var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div');
            var shadowRoot = host.attachShadow({mode: 'closed'});
            shadowRoot.appendChild(instance);

            calls = [];
            doc.documentElement.appendChild(host);
            assert_array_equals(calls, ['connected', instance]);
        });
    }, 'Inserting the shadow host of a custom element into ' + documentName + ' must enqueue and invoke connectedCallback');

    promise_test(function () {
        return getDocument().then(function (doc) {
            var instance = document.createElement('my-custom-element');
            var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div');
            var shadowRoot = host.attachShadow({mode: 'closed'});

            calls = [];
            shadowRoot.appendChild(instance);
            assert_array_equals(calls, []);
        });
    }, 'Inserting a custom element into a detached shadow tree that belongs to ' + documentName + ' must not enqueue and invoke connectedCallback');
});

</script>
</body>
</html>
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