Rule 1.1.2
Summary
This test consists in checking whether each <area> of an image map is defined with an "alt" attribute
Business description
Criterion
Test
Description
Chaque zone (balise area) d'une image réactive a-t-elle un attribut alt ?
Level
A
Technical description
Scope
page
Decision level
Decidable
Algorithm
Selection
Set1
All the <area> tags, defined within a <map> tag whose the "id" attribute corresponds to the "usemap" attribute of an <img> tag.
Process
Test1
For each element of Set1, test the presence of an "alt" attribute. For each occurrence of false-result of Test1, raise a MessageA
MessageA : Missing Alt attribute
- code : AltMissing
- status: Failed
- parameter :
"href"attribute, tag name, snippet - present in source : yes
Analysis
Passed
All the <area> tags of the page, correctly associated with an image, have an "alt" attribute (Test1 returns true for all the elements of Set1)
Failed
At least one <area> tag, correctly associated with an image, has no "alt" attribute (Test1 returns failed for at least one element)
Not Applicable
The page has no <area> tag, correctly associated with an image (Set1 is empty)