Asqatasun v4 - AccessiWeb 2.2 - Rule 8.9.1
Summary
This test consists in searching patterns indicating that forbidden tags (not div
, span
or table
) are used for layout purpose.
Business description
Criterion : 8.9
Test : 8.9.1
Test description :
On each Web page tags must not be used (except div, span and table) only for layout. Does this rule have been followed?
Level : Bronze
Technical description
Scope : page
Decision level : semidecidable
Algorithm
Selection
Selection1 : all the <a>
tags without href
, name
or id
attribute (a:not([href]):not([name]):not([id])
)
Selection2 : all the fieldset
not within a form
(fieldset:not(form fieldset):not(\*[role=search] fieldset):not(\*[role=form] fieldset)
)
Process
Test1 :
We check whether Selection1 AND Selection2 are empty. If true, raise a MessageA
MessageA : No suspect pattern detected
- code :NoPatternDetected
- status: NMI
- present in source : no
For each occurence of the Selection1 raise a MessageB
MessageB : Link without target
- code :LinkWithoutTarget
- status: Failed
- parameter : snippet
- present in source : yes
For each occurence of the Selection2 raise a MessageC
MessageC : Fieldset not within a form
- code :FieldsetNotWithinForm
- status: Failed
- parameter : snippet
- present in source : yes
Test1 :
Analysis
Failed :
Test1 returns false (The page contains a link without target
or a fieldset
not within a form
)
Pre-qualified :
Test1 returns true
Notes
On latest webdev data set (2013-10-30, 78,000 pages), links without target (a:not([href]):not([name]):not([id])
) have been found on 18256 pages, i.e on 23% of the pages.
On latest webdev data set (2013-10-30, 78,000 pages), fieldsets not within form (fieldset:not(form fieldset):not(\*[role=search] fieldset):not(\*[role=form] fieldset)
) have been found on 982 pages, i.e on 1.25% of the pages.