Focus a button under the heading for a test plan, e.g., under heading, "Action Menu Button Example Using aria-activedescendant", focus the button named "V22.03.17 Candidate".
Expected behavior: The button has aria-expanded=false so that it is announced by screen readers as collapsed.
Actual behavior: aria-expanded is not present until the button is activated. If activated to expand, aria-expanded is set to true. Then, if activated again, aria-expanded attribute is set to false.
The buttons that show/hide the test queue entry for a test plan version in the new test queue do not get announced as collapsed when the page loads.
To reproduce:
Expected behavior: The button has aria-expanded=false so that it is announced by screen readers as collapsed.
Actual behavior: aria-expanded is not present until the button is activated. If activated to expand, aria-expanded is set to true. Then, if activated again, aria-expanded attribute is set to false.