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

[philljenkins]

The ACT Text Results are correctly reporting for 46ca7f:

* Element marked as decorative is not exposed (https://www.w3.org/WAI/standards-guidelines/act/rules/46ca7f)
  + Passed Example 1: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/e5b8fa7ab66409e7b52b335a8b6aebe11fd78635.html
  + Passed Example 2: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/b40e6ce081099b8bf0f76a43f4c27f12df342ddd.html
  + Passed Example 3: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/6f8e6014c133635fecac02e1087a666c5014ae5f.html
  + Passed Example 4: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/eb5983ff8bb0f85c891d48f96106337446797d8f.html
  + Passed Example 5: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/9c51e8f0568ab3401375114dd0eded2eddfe231a.html
  + Passed Example 6: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/6687821a71b53e0e1764e895900a6bad46412b5c.html
  + Failed Example 1: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/e136a03c52c01c1b190c7372d83463f3c6502de9.html
  + Failed Example 2: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/96c1f58088f1e32c965f38ddc50d4b88f6a0f022.html
  + Failed Example 3: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/b4329d21bd80d961408bf066a70998417234f200.html
  + Inapplicable Example 1: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/46ca7f/a48478825dc5baf21cc79bfcfbe12ed462590f1e.html
* Form field has non-empty accessible name (https://www.w3.org/WAI/standards-guidelines/act/rules/e086e5)

[philljenkins]

Checker ruleID img_alt_null correctly reports against ARIA as ACT expects None for the following reason code:

{
        "id": ["IBM_Accessibility", "IBM_Accessibility_next", "WCAG_2_1", "WCAG_2_0", "WCAG_2_2"],
        "num": ["ARIA"],
        "level": eRulePolicy.VIOLATION,
        "toolkitLevel": eToolkitLevel.LEVEL_ONE,
        reasonCodes: ["potential_aria_override"]
    }
...
act: [{"46ca7f": {"potential_aria_override": "fail"}}]`

also as shown in the Rule listing artifact it display the correct mapping for the reason code potential_aria_override:

ARIA specification [NA]
The ARIA specification issues that cause accessibility issues may be covered by other rules and will be reported under those accessibility requirements. However, some non-conforming ARIA specification issues are still reported.

• img_alt_null: When the intent is to mark an image as decorative with an empty 'alt' attribute, the 'aria' or 'title' attributes should not be used
  • Needs review — The image 'alt' attribute is empty, but the 'aria' label is not empty and overrides the 'alt' attribute

[philljenkins]

Ready to close when #2090 passes review/QA