diff options
Diffstat (limited to 'dom/tests/mochitest/webcomponents/test_custom_element_get.html')
| -rw-r--r-- | dom/tests/mochitest/webcomponents/test_custom_element_get.html | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/dom/tests/mochitest/webcomponents/test_custom_element_get.html b/dom/tests/mochitest/webcomponents/test_custom_element_get.html new file mode 100644 index 0000000000..0688d21aaa --- /dev/null +++ b/dom/tests/mochitest/webcomponents/test_custom_element_get.html @@ -0,0 +1,31 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=1275838 +--> +<head> + <title>Test custom elements get function.</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<iframe id="iframe"></iframe> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1275838">Bug 1275838</a> +<script> +const testWindow = iframe.contentDocument.defaultView; +const customElements = testWindow.customElements; + +ok('customElements' in testWindow, '"window.customElements" exists'); +ok('define' in customElements, '"window.customElements.define" exists'); +ok('get' in customElements, '"window.customElements.get" exists'); + +const name = 'test-get-existing'; +class C extends HTMLElement {}; +customElements.define(name, C); +is(customElements.get(name), C, 'get() returns the constructor'); +is(customElements.get('test-get-not-defined'), undefined, + 'get() returns undefined for not-defined name'); + +</script> +</body> +</html> |