host-parsing.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /css/css-scoping/host-parsing.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Test parsing of the :host/host() pseudo-classes</title>

<link rel="help" href="https://drafts.csswg.org/css-scoping/#selectordef-host-function">

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

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

<script src="/css/support/parsing-testcommon.js"></script>

<script>

  test_valid_selector(':host');

  test_valid_selector(':host(.a)');

  test_valid_selector(':host(div.a)');

  test_invalid_selector(':host()');

  test_invalid_selector(':host(.a, .b)');

  test_invalid_selector(':host(.a + .b)');

  test_invalid_selector(':host(.a + .b, #c > #d)');

</script>