| <!DOCTYPE html> |
| <meta name="author" title="Xiaocheng Hu" href="mailto:[email protected]"> |
| <meta name="assert" content="The same constructor can be registered to multiple registries"> |
| <link rel="help" href="https://wicg.github.io/webcomponents/proposals/Scoped-Custom-Element-Registries"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| class MyCustom extends HTMLElement {}; |
| |
| test(() => { |
| let registry1 = new CustomElementRegistry(); |
| let registry2 = new CustomElementRegistry(); |
| window.customElements.define('my-custom', MyCustom); |
| registry1.define('my-custom', MyCustom); |
| registry2.define('my-custom', MyCustom); |
| |
| assert_equals(window.customElements.get('my-custom'), MyCustom); |
| assert_equals(registry1.get('my-custom'), MyCustom); |
| assert_equals(registry2.get('my-custom'), MyCustom); |
| }, 'Same constructor can be registered to different registries'); |
| |
| test(() => { |
| let registry = new CustomElementRegistry(); |
| registry.define('custom-a', MyCustom); |
| assert_throws_dom('NotSupportedError', () => registry.define('custom-b', MyCustom)); |
| }, 'Non-global registries still reject duplicate registrations of the same constructor'); |
| </script> |
