diff options
Diffstat (limited to 'testing/web-platform/tests/css/css-scoping/shadow-shared-style-cache-001.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-scoping/shadow-shared-style-cache-001.html | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scoping/shadow-shared-style-cache-001.html b/testing/web-platform/tests/css/css-scoping/shadow-shared-style-cache-001.html new file mode 100644 index 0000000000..e80b4d1c42 --- /dev/null +++ b/testing/web-platform/tests/css/css-scoping/shadow-shared-style-cache-001.html @@ -0,0 +1,27 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Shared style invalidation with removals</title> +<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1707116"> +<link rel="help" href="https://drafts.csswg.org/css-scoping/"> +<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> +<link rel="author" href="https://mozilla.org" title="Mozilla"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<div id="host-1"></div> +<div id="host-2"></div> +<script> +const INITIALLY_COMMON_STYLE = `<style>:host { background-color: red !important }</style>`; +let helper = document.querySelector("#host-1"); +let host = document.querySelector("#host-2"); + +test(function() { + helper.attachShadow({ mode: "open" }).innerHTML = INITIALLY_COMMON_STYLE; + assert_equals(getComputedStyle(helper).backgroundColor, "rgb(255, 0, 0)", "Common style should apply to helper"); + + host.attachShadow({ mode: "open" }).innerHTML = INITIALLY_COMMON_STYLE; + assert_equals(getComputedStyle(host).backgroundColor, "rgb(255, 0, 0)", "Common style should apply to host"); + + host.shadowRoot.innerHTML = `<style>:host { background-color: lime; width: 100px; height: 100px; }</style>`; + assert_equals(getComputedStyle(host).backgroundColor, "rgb(0, 255, 0)", "Common style should no longer apply to host"); +}); +</script> |