31 lines
1 KiB
HTML
31 lines
1 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1275838
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-->
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<head>
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<title>Test custom elements get function.</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<iframe id="iframe"></iframe>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1275838">Bug 1275838</a>
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<script>
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const testWindow = iframe.contentDocument.defaultView;
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const customElements = testWindow.customElements;
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ok('customElements' in testWindow, '"window.customElements" exists');
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ok('define' in customElements, '"window.customElements.define" exists');
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ok('get' in customElements, '"window.customElements.get" exists');
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const name = 'test-get-existing';
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class C extends HTMLElement {};
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customElements.define(name, C);
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is(customElements.get(name), C, 'get() returns the constructor');
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is(customElements.get('test-get-not-defined'), undefined,
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'get() returns undefined for not-defined name');
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</script>
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</body>
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</html>
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