ARIA in HTML - test cases for allowed roles on li elements

Test 1

Authors MAY use any role, on an li element, so long as list element's implicit list role has been overwritten.

NOTE: that while any role is allowed, the role MUST still adhere to ARIA's required context rule.

NOTE: some of the following tests MAY fail other conformance checker rules beyond checking for the allowed role.

Expected result: The ul, menu and ol elements have a role=none so 'any role' should be allowed on a li element (but still may fail other rules). Use of role=generic would result in a failure as this role is prohibited for use by authors.

Test 2

Authors MAY use any role, on an li element, so long as the li element is not a child of a list element.

NOTE: that while any role is allowed, the role MUST still adhere to ARIA's required context rule.

NOTE: some of the following tests MAY fail other conformance checker rules beyond checking for the allowed role. All of the following will fail HTML validation, as these li elements are not children of an HTML list element.

Expected result: As the li element is not a child of a list element (ul, ol or menu), the element is allowed 'any role' (though the use of any role may still fail other rules). Use of role=generic would result in a failure as this role is prohibited for use by authors.

Test 3

Authors MUST NOT specify any role, on an li element, when it is a child of a list element which has not had its implicit list role overwritten.

Expected result: A failure should be flagged for each li element which has a role other than listitem. A warning should be flagged for an li element which has a role=listitem as specifying the redundant role is unnecessary.