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Diffstat (limited to 'testing/web-platform/tests/css/css-scoping/slotted-matches.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-scoping/slotted-matches.html | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scoping/slotted-matches.html b/testing/web-platform/tests/css/css-scoping/slotted-matches.html new file mode 100644 index 0000000000..1a582fe98d --- /dev/null +++ b/testing/web-platform/tests/css/css-scoping/slotted-matches.html @@ -0,0 +1,16 @@ +<!doctype html> +<title>CSS Test: ::slotted() should not match via the matches() API, since it's in the wrong scope</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> +<link rel="help" href="https://drafts.csswg.org/css-scoping/#slotted-pseudo"> +<link rel="help" href="https://dom.spec.whatwg.org/#dom-element-matches"> +<link rel="help" href="https://bugzil.la/1544242"> +<div id="host"><div id="slotted"></div></div> +<script> +test(function() { + let slotted = document.getElementById("slotted"); + host.attachShadow({ mode: "open" }).innerHTML = `<slot></slot>`; + assert_false(slotted.matches("::slotted(div)"), "Shouldn't match ::slotted from the outer tree") +}, "::slotted() doesn't reveal the presence of shadow DOM via matches()"); +</script> |