Find a form with collapse/expand all links Make sure they work as expected Make sure they have a role attribute set to button Make sure the aria-controls attribute is a list of the section IDs Make sure an aria-live attribute set to polite is set on the sections Find a form with advanced fields ( Show more/less actions) Make sure they work as expected (only display advanced in their own section, etc...) Make sure they have the role attribute set to button Make sure the list of IDs in the aria-controls attribute only contains the IDs of the advanced element in the same section Make sure an aria-live attribute set to polite is set on the advanced elements Play with the attachment test_forms.php to create different combinations and test multiple forms per page