Fix profiles accessAttributesKey() for e2e tests

Author: rockdaboot

pkg/ottl/contexts/internal/ctxprofile/profile.go

@@ -348,11 +348,27 @@ func accessAttributesKey[K Context](key []ottl.Key[K]) ottl.StandardGetSetter[K]
 			if err != nil {
 				return err
 			}
-			v := pcommon.NewValueEmpty()
+			v := getAttributeValue(tCtx, *newKey)
 			if err = ctxutil.SetIndexableValue[K](ctx, tCtx, v, val, key[1:]); err != nil {
 				return err
 			}
 			return pprofile.PutAttribute(tCtx.GetProfilesDictionary().AttributeTable(), tCtx.GetProfile(), *newKey, v)
 		},
 	}
 }
+
+func getAttributeValue[K ProfileContext](tCtx K, key string) pcommon.Value {
+	// Find the index of the attribute in the profile's attribute indices
+	// and return the corresponding value from the attribute table.
+	table := tCtx.GetProfilesDictionary().AttributeTable()
+	indices := tCtx.GetProfile().AttributeIndices().AsRaw()
+
+	for _, tableIndex := range indices {
+		attr := table.At(int(tableIndex))
+		if attr.Key() == key {
+			return attr.Value()
+		}
+	}
+
+	return pcommon.NewValueEmpty()
+}