1 files changed, 8 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/dom/elements/global-attributes/dir-shadow-utils.js b/testing/web-platform/tests/html/dom/elements/global-attributes/dir-shadow-utils.js
new file mode 100644
index 0000000000..c7d89cf908
--- /dev/null
+++ b/testing/web-platform/tests/html/dom/elements/global-attributes/dir-shadow-utils.js
@@ -0,0 +1,8 @@
+function html_direction(element) {
+  let is_ltr = element.matches(":dir(ltr)");
+  let is_rtl = element.matches(":dir(rtl)");
+  if (is_ltr == is_rtl) {
+    return "error";
+  }
+  return is_ltr ? "ltr" : "rtl";
+}