Test Case sc1.1.1_l1_049: Text alternative for spacer image: empty alt attribute

Formal Metadata

Formal Metadata
TitleText alternative for spacer image: empty alt attribute
DescriptionA document with a single sentence that contains a spacer image. The alt attribute for the spacer image is empty.
CreatorBenToWeb (Christophe.Strobbe@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-08-25
Statusaccepted QA

Technologies and Features

Technologies are markup languages or data formats. If the technology is a markup language, “features” refers to elements and attributes.

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

Feature: img (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: How to specify alternate text .

Test Data

Purpose

This test case is intended to pass because the alt attribute for the spacer image is empty.

Test Modes

Accessibility expert.

Test Files

Test file.

TCDL Data

sc1.1.1_l1_049 (XML).

Rules

“Rules” refer to success criteria in WCAG 2.0, checkpoints in WCAG 1.0 and similar requirements.

Primary Rules

The test case passes (line 9, column 117) the following success criterion: http://www.w3.org/TR/2007/WD-WCAG20-20070517/Overview.html#text-equiv-all.

Functional Outcome

The spacer image has an empty text description and can therefore be ignored by assistive technologies.

Technical Comment

The img element has an empty alt attribute.

This test case maps to technique H67: Using null alt text and no title attribute on img elements for images that AT should ignore.

Secondary Rules

Secondary Rule (WCAG 2.0 - April 2006 Working Draft (Last Call))

The test case passes (line 9, column 117) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#text-equiv-all.

Functional Outcome

The spacer image has an empty text description and can therefore be ignored by assistive technologies.

Technical Comment

The img element has an empty alt attribute.

Online version: sc1.1.1_l1_049.

Secondary Rule (WCAG 2.0 - June 2005 Working Draft)

The test case passes (line 9, column 117) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#text-equiv-ignored.

Functional Outcome

The spacer image has an empty text description and can therefore be ignored by assistive technologies.

Technical Comment

The img element has an empty alt attribute.

Secondary Rule (WCAG 2.0 - February 2005 Editor's Draft)

The test case needs review before it can be established if it passes or fails the following success criterion: http://www.w3.org/WAI/GL/WCAG20/WD-WCAG20-20050211/#4.1_use-spec-document-backward-compat-violations.

Functional Outcome

The spacer image has a text description that is empty.

Technical Comment

The HTML specification does not define the meaning of an empty alt attribute on an img element.