invalid-pseudo-elements.html

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This WPT test may be referenced by the following Test IDs:
- /css/cssom/invalid-pseudo-elements.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>CSSOM: Test that rules with invalid pseudo elements are not found</title>

<link rel="help" href="https://drafts.csswg.org/cssom/">

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

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

<style>

    ::part {}

    ::slotted {}

    ::highlight {}

</style>

<script>

    test(() => {

        assert_equals(document.styleSheets[0].cssRules[0]?.selectorText, undefined, "No associated selectorText");

        assert_equals(document.styleSheets[0].cssRules[0], undefined, "No invalid pseudo element rule should be found");

});

</script>