fixrule(img_alt_null, aria_accessiblename_exists) Update the rule mappings to be consistent with ACT rules

accessibility-checker-engine/src/v4/checker/Checker.ts

@@ -311,21 +311,27 @@ export class Checker implements IChecker {
             }
             for (const rsId of rsIds) {
                 if (rsId in rsInfo) {
-                    Object.keys(rsInfo[rsId]).forEach(code => { 
+                    const reCode = new RegExp(`(^|--)${reasonCode}($|--)`);
+                    Object.keys(rsInfo[rsId]).forEach(code => {
                         let level = null;
-                        const reCode = new RegExp(`(^|--)${reasonCode}($|--)`);
                         if (code === 'None')
                             level = rsInfo[rsId]["None"];
                         else if (reCode.test(code))
-                            level = rsInfo[rsId][code];
-                        if (level === eRulePolicy.VIOLATION) {
-                            retVal = eRulePolicy.VIOLATION;
-                        } else if (level === eRulePolicy.RECOMMENDATION && retVal === null) {
-                            retVal = eRulePolicy.RECOMMENDATION;
-                        } else if (retVal === null) {
-                            retVal = eRulePolicy.INFORMATION;
-                        }    
-                    });          
+                            level = rsInfo[rsId][code]; 
+
+                        if (level !== null) {
+                            if (level === eRulePolicy.VIOLATION) {
+                                retVal = eRulePolicy.VIOLATION;
+                            } else if (level === eRulePolicy.RECOMMENDATION && retVal === null) {
+                                retVal = eRulePolicy.RECOMMENDATION; 
+                            } else if (retVal === null) {
+                                retVal = eRulePolicy.INFORMATION;
+                            }
+                        }
+                    });
+                    if (retVal === null) {
+                        retVal = eRulePolicy.INFORMATION;
+                    }    
                 }
             }
         } 

accessibility-checker-engine/src/v4/rules/aria_accessiblename_exists.ts

@@ -14,9 +14,7 @@
 import { Rule, RuleResult, RuleFail, RuleContext, RulePass, RuleContextHierarchy } from "../api/IRule";
 import { eRulePolicy, eToolkitLevel } from "../api/IRule";
 import { AriaUtil } from "../util/AriaUtil";
-import { CommonUtil } from "../util/CommonUtil";
 import { VisUtil } from "../util/VisUtil";
-import { ARIADefinitions } from "../../v2/aria/ARIADefinitions";
 import { AccNameUtil } from "../util/AccNameUtil";
 
 export const aria_accessiblename_exists: Rule = {
@@ -26,32 +24,42 @@ export const aria_accessiblename_exists: Rule = {
         "en-US": {
             "pass": "aria_accessiblename_exists.html",
             "fail_no_accessible_name": "aria_accessiblename_exists.html",
+            "fail_no_accessible_name_image": "aria_accessiblename_exists.html",
             "group": "aria_accessiblename_exists.html"
         }
     },
     messages: {
         "en-US": {
             "pass": "An accessible name is provided for the element",
             "fail_no_accessible_name": "Element <{0}> with \"{1}\" role has no accessible name",
+            "fail_no_accessible_name_image": "Element <{0}> with \"{1}\" role has no accessible name",
             "group": "Elements with certain roles should have accessible names"
         }
     },
     rulesets: [{
         "id": ["IBM_Accessibility", "IBM_Accessibility_next", "WCAG_2_1", "WCAG_2_0", "WCAG_2_2"],
         "num": ["4.1.2"],
         "level": eRulePolicy.RECOMMENDATION,
-        "toolkitLevel": eToolkitLevel.LEVEL_ONE
+        "toolkitLevel": eToolkitLevel.LEVEL_ONE,
+        reasonCodes: ["fail_no_accessible_name"]
+    },
+    {
+        "id": ["IBM_Accessibility", "IBM_Accessibility_next", "WCAG_2_1", "WCAG_2_0", "WCAG_2_2"],
+        "num": ["ARIA"],
+        "level": eRulePolicy.RECOMMENDATION,
+        "toolkitLevel": eToolkitLevel.LEVEL_ONE,
+        reasonCodes: ["fail_no_accessible_name_image"]
     }],
-    act: [],
+    act: [{"23a2a8": {"fail_no_accessible_name_image": "fail"}}],
     run: (context: RuleContext, options?: {}, contextHierarchies?: RuleContextHierarchy): RuleResult | RuleResult[] => {
         const ruleContext = context["dom"].node as Element;
 
         //skip the rule
         if (VisUtil.isNodeHiddenFromAT(ruleContext)) return null;
 
         let nodeName = ruleContext.nodeName.toLocaleLowerCase();
-        // svg element is handled in svg_graphics)labbelled rule
-        if (nodeName === 'svg') return;
+        // svg element is handled in svg_graphics_labbelled rule and image rules
+        if (nodeName === 'svg' || nodeName === 'img') return;
 
         // when table element with a caption as first child
         if (nodeName === 'table' 
@@ -69,9 +77,11 @@ export const aria_accessiblename_exists: Rule = {
         let role = AriaUtil.getResolvedRole(ruleContext);
 
         const name_pair = AccNameUtil.computeAccessibleName(ruleContext);
-        if (!name_pair || !name_pair.name || name_pair.name.trim().length === 0)
+        if (!name_pair || !name_pair.name || name_pair.name.trim().length === 0) {
+            if (role === 'img' || role === 'image')
+                return RuleFail("fail_no_accessible_name_image", [ruleContext.nodeName.toLowerCase(), role]); 
             return RuleFail("fail_no_accessible_name", [ruleContext.nodeName.toLowerCase(), role]);
-
+        }    
         return RulePass("pass");
     }
 }

accessibility-checker-engine/src/v4/rules/img_alt_null.ts

@@ -45,8 +45,17 @@ export const img_alt_null: Rule = {
         "id": ["IBM_Accessibility", "IBM_Accessibility_next", "WCAG_2_1", "WCAG_2_0", "WCAG_2_2"],
         "num": ["1.1.1"],
         "level": eRulePolicy.VIOLATION,
-        "toolkitLevel": eToolkitLevel.LEVEL_ONE
-    }],
+        "toolkitLevel": eToolkitLevel.LEVEL_ONE,
+        reasonCodes: ["fail_decorative"]
+    },
+    {
+        "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"}}],
     run: (context: RuleContext, options?: {}, contextHierarchies?: RuleContextHierarchy): RuleResult | RuleResult[] => {
         const ruleContext = context["dom"].node as Element;

accessibility-checker-engine/test/v2/checker/accessibility/rules/aria_accessiblename_exists_ruleunit/aria_imge.html

@@ -33,22 +33,7 @@
   UnitTest = {
       ruleIds: ["aria_accessiblename_exists"],
       results: [
-      {
-            "ruleId": "aria_accessiblename_exists",
-            "value": [
-              "INFORMATION",
-              "PASS"
-            ],
-            "path": {
-              "dom": "/html[1]/body[1]/img[1]",
-              "aria": "/document[1]/img[1]"
-            },
-            "reasonId": "pass",
-            "message": "An accessible name is provided for the element",
-            "messageArgs": [],
-            "apiArgs": [],
-            "category": "Accessibility"
-          }
+
       ]
   }
 </script>