fixrule(img_alt_null) Maps to 1.1.1 while ACT expects None

[philljenkins]

Checker rule img_alt_null reports inconsistent with ACT rule(s) below (updated with 7 November results):

• Failed examples should be failed by at least one of the Checker rules fail reason codes.
• Checker should be mapping (report against) the same success criteria as what is expected by the ACT rule.

1. Partially consistent with ACT rule: Element marked as decorative is not exposed 46ca7f
   • Mapping: The Checker implementation reports different success criteria as failed from what is expected by this rule. Checker reports 1.1.1 while ACT expects None.
   • aria_attribute_valid: Pass, Fail_invalid_role_attr, Fail_invalid_implicit_role_attr and maps to ARIA (None) same as ACT.
   • "failed correctly by " img_alt_null: potential_aria_override on Failed Example 2, but maps to 1.1.1
   • Mapping: This rule reports 1.1.1 while ACT expects None. This rule & reason code should map to ARIA, not 1.1.1.
   • opened this issue to resolve

Reference

• Checker's Implementation report of ACT rules https://www.w3.org/WAI/standards-guidelines/act/implementations/equal-access/ (updated 7 November 2024)
• Checker's raw results sent to ACT https://unpkg.com/[email protected]/act-report-v2.txt
• Checker's Rule mapping spreadsheet file on box