| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"> |
| <link rel="help" href="https://github.com/whatwg/html/issues/10854"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script> |
| test(() => { |
| let registry = new CustomElementRegistry(); |
| assert_not_equals(registry, window.customElements); |
| }, 'Create a CustomElementRegistry not identically equal to window.customElements'); |
| |
| test(() => { |
| let registry = new CustomElementRegistry(); |
| window.customElements.define('a-b', class extends HTMLElement {}); |
| assert_equals(registry.get('a-b'), undefined); |
| }, 'Defining an element in the global registry does not add a definition to a scoped CustomElementRegistry'); |
| |
| test(() => { |
| let registry = new CustomElementRegistry(); |
| registry.define('b-c', class extends HTMLElement {}); |
| assert_equals(window.customElements.get('b-c'), undefined); |
| }, 'Defining an element in a scoped global registry does not add a definition to the global registry'); |
| |
| </script> |
| </body> |
| </html> |
