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Diffstat (limited to 'testing/web-platform/tests/css/css-scoping/host-dom-001.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-scoping/host-dom-001.html | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scoping/host-dom-001.html b/testing/web-platform/tests/css/css-scoping/host-dom-001.html new file mode 100644 index 0000000000..fff0112b1e --- /dev/null +++ b/testing/web-platform/tests/css/css-scoping/host-dom-001.html @@ -0,0 +1,16 @@ +<!doctype html> +<title>CSS Test: :host in DOM APIs</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/#host-selector"> +<div id="host"></div> +<script> +test(function() { + let root = host.attachShadow({ mode: "open" }); + root.innerHTML = `<div></div>`; + assert_false(host.matches(":host"), ":host shouldn't match from CSSOM from outside the shadow tree"); + assert_true(root.firstElementChild.matches(":host div"), ":host should match from within the shadow tree"); + assert_equals(root.querySelector(":host div"), root.firstElementChild, ":host should match from within the shadow tree"); +}) +</script> |