Rule 13.7.1

Summary

This test consists in detecting all the following tags with potential quick change of brightness : img, svg, canvas, object or embed.

Business description

Criterion

13.7

Test

13.7.1

Description

Dans chaque page web, chaque image (balise <img>, balise <svg>, balise <canvas>, balise <embed> ou balise <object>) qui provoque un changement brusque de luminosité ou un effet de flash vérifie-t-elle une de ces conditions ?

• La fréquence de l’effet est inférieure à 3 par seconde.
• La surface totale cumulée des effets est inférieure ou égale à 21824 pixels.

Level

A

Technical description

Scope

Page

Decision level

Semi-Decidable

Algorithm

Selection

Set1

• All the following tags:
  • <img>
  • <svg>
  • <canvas>
  • <object>
  • <embed>

css selector :

img,
svg,
canvas,
object,
embed

Process

Test1

Test whether Set1 is not empty. If yes, raise a MessageA.

MessageA : Check manually the elements of the scope

• code: ManualCheckOnElements
• status: Pre-qualified
• parameter: snippet
• present in source: yes

Analysis

Not Applicable

The page has no <img>, <svg>, <canvas>, <object> or <embed> tag.

Pre-qualified

In all other cases

Files

• TestCases files for rule 13.7.1
• Unit test file for rule 13.7.1
• Class file for rule 13.7.1