Editorial: Validator tests for removing "aria-expanded" from listbox support attributes (#2167)

spectranaut · pkra · jnurthen · web-flow · commit c6b03d0a4122 · 2025-06-13T14:14:26.000-07:00
Co-authored-by: Peter Krautzberger &lt;p.krautzberger@gmail.com&gt;
Co-authored-by: pkra &lt;pkra@users.noreply.github.com&gt;
Co-authored-by: James Nurthen &lt;jnurthen@users.noreply.github.com&gt;
diff --git a/validator-tests/README.md b/validator-tests/README.md
@@ -30,6 +30,9 @@ corresponding changes in validators.
 * [Listbox Group Children Must Be Option](listbox-group-children-must-be-option.html)
   * @axe-core/cli: [Results](listbox-group-children-must-be-option-axe.json), [bug](https://github.com/dequelabs/axe-core-npm/issues/313)
   * validator.nu: [Results](listbox-group-children-must-be-option-vnu.json)
+* [aria-expanded no longer supported on listbox](listbox-aria-expanded-not-supported.html)
+  * @axe-core/cli: [Results](listbox-aria-expanded-not-supported-axe.json), [bug](https://github.com/dequelabs/axe-core/issues/4433)
+  * validator.nu: [Results](listbox-aria-expanded-not-supported-vnu.json), [bug](https://github.com/validator/validator/issues/1716)
 * [Menuitemcheckbox Owned By Menu](menuitemcheckbox-owned-by-menu.html)
   * @axe-core/cli: [Results](menuitemcheckbox-owned-by-menu-axe.json)
   * validator.nu: [Results](menuitemcheckbox-owned-by-menu-vnu.json)
diff --git a/validator-tests/listbox-aria-expanded-not-supported-axe.json b/validator-tests/listbox-aria-expanded-not-supported-axe.json
@@ -0,0 +1 @@
+[]
diff --git a/validator-tests/listbox-aria-expanded-not-supported-vnu.json b/validator-tests/listbox-aria-expanded-not-supported-vnu.json
@@ -0,0 +1,2 @@
+{
+}
diff --git a/validator-tests/listbox-aria-expanded-not-supported.html b/validator-tests/listbox-aria-expanded-not-supported.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en-US">
+<head><title>aria-expanded is no longer a supported property on role listbox.</title></head>
+<body>
+<!--
+URL: https://www.w3.org/TR/wai-aria-1.2/#listbox
+RULE: "aria-expanded is no longer a supported property on role listbox"
+NOTE: Change introduced by https://github.com/w3c/aria/pull/1862
+-->
+
+<div id="fail1" role="listbox" aria-label="foo" aria-expanded="true">
+</div>
+
+<div id="fail2" role="listbox" aria-label="foo" aria-expanded="false">
+</div>
+
+<div id="fail3" role="listbox" aria-label="foo" aria-expanded>
+</div>
