ShadowRoot-innerHTML.tentative.html

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This test has a WPT meta file that expects 5 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /custom-elements/scoped-registry/ShadowRoot-innerHTML.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<title>Tests innerHTML should use the scoped custom element registry used to create the context object</title>

<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">

<link rel="help" href="https://github.com/WICG/webcomponents/issues/1078">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

</head>

<body>

<script>

function createConnectedShadowTree(test, registry) {

    const host = document.createElement('div');

    const shadowRoot = host.attachShadow({mode: 'closed', registry});

    document.body.appendChild(host);

    test.add_cleanup(() => host.remove());

    return shadowRoot;

test((test) => {

    const registry = new CustomElementRegistry;

    class SomeElement extends HTMLElement { };

    registry.define('some-element', SomeElement);

    class OtherElement extends HTMLElement { };

    registry.define('other-element', OtherElement);

    const shadowRoot = createConnectedShadowTree(test, registry);

    assert_true(shadowRoot.createElement('some-element') instanceof SomeElement);

    assert_true(shadowRoot.createElement('other-element') instanceof OtherElement);

    shadowRoot.innerHTML = '<some-element></some-element><other-element></other-element>';

    assert_true(shadowRoot.querySelector('some-element') instanceof SomeElement);

    assert_true(shadowRoot.querySelector('other-element') instanceof OtherElement);

}, 'innerHTML on a shadow root should use scoped custom element registry');

test((test) => {

    const registry = new CustomElementRegistry;

    class SomeElement extends HTMLElement { };

    registry.define('some-element', SomeElement);

    class OtherElement extends HTMLElement { };

    registry.define('other-element', OtherElement);

    const shadowRoot = createConnectedShadowTree(test, registry);

    const someElement = shadowRoot.createElement('some-element');

    assert_true(someElement instanceof SomeElement);

    someElement.innerHTML = '<other-element></other-element>';

    assert_true(someElement.querySelector('other-element') instanceof OtherElement);

}, 'innerHTML on a disconnected element should use the associated scoped custom element registry');

test((test) => {

    class SomeElement1 extends HTMLElement { };

    customElements.define('some-element', SomeElement1);

    const registry = new CustomElementRegistry;

    class SomeElement2 extends HTMLElement { };

    registry.define('some-element', SomeElement2);

    const shadowRoot = createConnectedShadowTree(test, registry);

    shadowRoot.innerHTML = '<some-element></some-element>';

    assert_true(shadowRoot.querySelector('some-element') instanceof SomeElement2);

}, 'innerHTML on a connected shadow root should use its scoped custom element');

test((test) => {

    class OtherElement1 extends HTMLElement { };

    customElements.define('other-element', OtherElement1);

    const registry1 = new CustomElementRegistry;

    class SomeElement extends HTMLElement { };

    registry1.define('some-element', SomeElement);

    class OtherElement2 extends HTMLElement { };

    registry1.define('other-element', OtherElement2);

    const registry2 = new CustomElementRegistry;

    class OtherElement3 extends HTMLElement { };

    registry2.define('other-element', OtherElement3);

    const shadowRoot1 = createConnectedShadowTree(test, registry1);

    const shadowRoot2 = createConnectedShadowTree(test, registry2);

    const someElement = shadowRoot1.createElement('some-element');

    someElement.innerHTML = '<other-element></other-element>';

    assert_true(someElement.querySelector('other-element') instanceof OtherElement2);

    shadowRoot2.appendChild(someElement);

    someElement.innerHTML = '<other-element>b</other-element>';

    assert_true(someElement.querySelector('other-element') instanceof OtherElement3);

    someElement.remove();

    someElement.innerHTML = '<other-element></other-element>';

    assert_true(someElement.querySelector('other-element') instanceof OtherElement3);

}, 'innerHTML on an inserted element should use the scoped custom element of the ancestor shadow root');

test((test) => {

    const registry = new CustomElementRegistry;

    class SomeElement extends HTMLElement { };

    registry.define('some-element', SomeElement);

    const shadowRoot = createConnectedShadowTree(test, registry);

    shadowRoot.innerHTML = '<some-element></some-element><template><some-element></some-element></template>';

    assert_equals(shadowRoot.querySelector('some-element').__proto__.constructor.name, 'SomeElement');

    assert_equals(shadowRoot.querySelector('template').content.querySelector('some-element').__proto__.constructor.name, 'HTMLElement');

}, 'innerHTML should not upgrade a custom element inside a template element');

</script>

</body>

</html>