Asqatasun v4 - Summary

Asqatasun v4 - AccessiWeb 2.2 - Rule 13.6.1

Summary

This test consists in checking whether each downloadable file provide information about its format

Business description

Criterion : 13.6

Test : 13.6.1

Test description :

On each Web page, does each file to download via a link or a form have information about its format (except in special cases)?

Level : Bronze

Technical description

Scope : page

Decision level : semidecidable

Algorithm

Selection

Set1 : All the <a> tags with an href attribute (a[href])

Set2: All the elements from Set1 with an href attribute that does not contain a fragment (presence of the hash sign (#))

Set3 : All the elements from Set2 that have a proper extension (no parameters, a path after the domain that contains a "." character)

Set4 : All the <form> tags (form)

Process

Test1

For each element of Set3, we check whether the content of the href attribute of the link ends with an extension that belongs to the downloadable document extension list.

For each element returning true in Test1, raise a Message1

Test2

IF Test1 returns false, we check whether the size of Set2 is equals to size of Set3. In other words, we verify that all the links of the page have a well-defined extension.

If Test2 returns false (some links have no extension on the page), raise a Message2.

Test3

If Test2 returns true (all the links have a well-defined extension that belongs to the web content extension list), we check whether Set4 is empty (the page contains forms that may lead to a downloadable document).

If Test3 returns false (some form are found on the page), raise a Message3.

Message1: File To Download Detected, check format
Message2: Check manually links without extension
Message3: Check downloadable document from form

Analysis

NA

NMI

In all other cases

Notes

We assume that a targetted document (pointed by the "href" attribute of the link) can be characterized by its extension.

Here is the content of the downloadable document extension list (feel free to help us improving it or to criticise it) :