<?xml version="1.0" encoding="UTF-8"?>
<testCaseDescription xmlns="http://bentoweb.org/refs/TCDL1.1" xmlns:tcdl="http://bentoweb.org/refs/TCDL1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:html="http://www.w3.org/1999/xhtml" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" id="xhtml1_wcag2_20050630_1.1_l1_sc1_020" xml:lang="en" xsi:schemaLocation="http://bentoweb.org/refs/TCDL1 http://bentoweb.org/refs/schemas/tcdl1.xsd http://bentoweb.org/refs/TCDL1.1 http://bentoweb.org/refs/schemas/tcdl1.1.xsd http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/simpledc20021212.xsd http://www.w3.org/1999/xhtml http://www.w3.org/2004/07/xhtml/xhtml1-strict.xsd http://www.w3.org/1999/xlink http://bentoweb.org/refs/schemas/xlink.xsd">

 
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  <formalMetadata xml:lang="en">
      <description>A document with  an <html:code>object</html:code> element in an image map. The <html:code>object</html:code> element embeds an image in <html:acronym>PNG</html:acronym> format, and 
        contains another <html:code>object</html:code> element that embeds the <html:acronym>GIF</html:acronym> version of the same image. This second <html:code>object</html:code> elment 
        contains an <html:code>img</html:code> element with the same <html:acronym>GIF</html:acronym> image.
        The <html:code>alt</html:code> attribute of the <html:code>img</html:code> element identifies the image and conveys the same information.
        The  <html:code>object</html:code> elements do not have a  <html:code>title</html:code> attribute or any other text alternative except the <html:code>alt</html:code> attribute of the <html:code>img</html:code> element.
        Most importantly, the <html:code>alt</html:code> attributes of the image map's <html:code>area</html:code> elements are empty.
      </description>
      <title>Alternative text for areas in client-side image maps: two nested objects and nested image all referencing same map; empty alt attributes in image map areas</title>
      <dc:creator>Christophe.Strobbe@esat.kuleuven.be</dc:creator>
      <dc:language>en</dc:language>
      <dc:rights>Copyright BenToWeb 2004-2007</dc:rights>
      <date>2005-08-29</date>
      <status>draft</status>
   </formalMetadata>

   <technology xml:lang="en">
      <recommendation xlink:href="http://www.w3.org/TR/xhtml1/">
         <label><html:acronym>XHTML</html:acronym>&#8482; 1.0 The Extensible HyperText Markup Language (Second Edition)</label>
         <testElements>
            <testElement>
               <elementName localname="img" namespace="http://www.w3.org/1999/xhtml"/>
               <specReference xlink:href="http://www.w3.org/TR/1999/REC-html401-19991224/struct/objects.html#adef-alt">How to specify alternate text</specReference>
            </testElement>
            <testElement>
               <elementName localname="object" namespace="http://www.w3.org/1999/xhtml"/>
               <specReference xlink:href="http://www.w3.org/TR/1999/REC-html401-19991224/struct/objects.html#h-13.3">General Inclusion: The <html:code>object</html:code> element</specReference>
            </testElement>
            <testElement>
               <elementName localname="map" namespace="http://www.w3.org/1999/xhtml"/>
               <specReference xlink:href="http://www.w3.org/TR/1999/REC-html401-19991224/struct/objects.html#idx-client-side_image_map-1">How to create client-side image maps</specReference>
            </testElement>
            <testElement>
               <elementName localname="area" namespace="http://www.w3.org/1999/xhtml"/>
               <specReference xlink:href="http://www.w3.org/TR/1999/REC-html401-19991224/struct/objects.html#edef-AREA">Client-side image maps: the <html:code>map</html:code> and <html:code>area</html:code> elements</specReference>
            </testElement>
         </testElements>
      </recommendation>
   </technology>

   <testCase complexity="atomic">
      <purpose>
        <p>This test case is intended to fail because none of the areas of the image map has a text alternative.  The empty text alternatives are an issue in their own right, but, in addition to this, browser support for the <html:code>object</html:code> element may also determine if this test case is accessible or not. Internet Explorer has weak or no support for the <html:code>object</html:code> element.</p>
      </purpose>
      <requiredTests>
         <testModes>
            <testMode>enduser</testMode>
         </testModes>
         <scenario id="s01">
            <questions>
               <yesNoQuestion>
                  <questionText xml:lang="en">
                     <p>Do you understand the meaning of the object in the page? (The object may be an image, applet, …)</p>
                  </questionText>
                  <questionText xml:lang="de">
                     <p>Verstehen Sie die Bedeutung des dargestellten Objektes? (Es kann sich dabei um ein Bild, ein Applet, … handeln.)</p>
                  </questionText>
                  <optionYes value="-1"/>
                  <optionNo value="1"/>
               </yesNoQuestion>
            </questions>
            <experience>
               <AssistiveTechnology type="screenreader" minimumLevel="3"/>
               <UserAgent type="browser" product="Microsoft Internet Explorer" version="5" minimumLevel="1"/>
               <UserAgent type="browser" product="Microsoft Internet Explorer" version="5.5" minimumLevel="1"/>
               <UserAgent type="browser" product="Microsoft Internet Explorer" version="6" minimumLevel="1"/>
            </experience>
         </scenario>
         <scenario id="s02">
            <questions>
               <yesNoQuestion>
                  <questionText xml:lang="en">
                     <p>Do you understand the meaning of the object in the page? (The object may be an image, applet, …)</p>
                  </questionText>
                  <questionText xml:lang="de">
                     <p>Verstehen Sie die Bedeutung des dargestellten Objektes? (Es kann sich dabei um ein Bild, ein Applet, … handeln.)</p>
                  </questionText>
                  <optionYes value="-1"/>
                  <optionNo value="1"/>
               </yesNoQuestion>
            </questions>
            <experience>
               <AssistiveTechnology type="screenreader" minimumLevel="1"/>
               <AssistiveTechnology type="Braille display" minimumLevel="3"/>
               <UserAgent type="browser" minimumLevel="1"/>
            </experience>
         </scenario>
      </requiredTests>

      <files sequential="false">
         <file xlink:href="../testfiles/xhtml1_wcag2_20050630_1.1_l1_sc1_020.html" hrefLang="en"/>
      </files>
   </testCase>

   <rules>
      <rule id="http://bentoweb.org/refs/rulesets.xml#WCAG2_20050630_1.1_text-equiv-informative" primary="yes">
         <locations expectedResult="fail">
            <location line="16" column="7" xpath="/:html/:body/:div/:object/:object/img/@alt"/>
            <location line="20" column="46" xpath="/:html/:body/:div/:map/:area[1]/@alt"/>
            <location line="21" column="47" xpath="/:html/:body/:div/:map/:area[2]/@alt"/>
            <location line="22" column="47" xpath="/:html/:body/:div/:map/:area[3]/@alt"/>
         </locations>
         <functionalOutcome>
            <p>The image has a fallback with a text description.</p>
         </functionalOutcome>
         <techComment>
            <p>The <html:code>object</html:code> element has an <html:code>img</html:code> element with an <html:code>alt</html:code> attribute as a fallback .
              Since there is no direct text alternative, it is not entirely clear if this code is accessible.
              However, since each of the <html:code>area</html:code> elements in the map <html:code>element</html:code> has an <html:code>alt</html:code> attribute, this case does not pass.
            </p>
            <p>This test case is identical to xhtml1_wcag2_20050630_1.1_l1_sc1_013, except that the <html:code>alt</html:code> attributes of the <html:code>area</html:code> elements are now empty.</p>
            <p>(In Mozilla 1.7.3 and Firefox 1.0, the map does not work if the <html:code>map</html:code> element has only an <html:code>id</html:code> and no <html:code>name</html:code> attribute.)</p>
            <p>(Internet Explorer does not support <html:code>object</html:code> so the test does not work in this browser.)</p>
         </techComment>
      </rule>
   </rules>

  <namespaceMappings>
    <namespace nsPrefix="" nsURI="http://www.w3.org/1999/xhtml" />
  </namespaceMappings>
</testCaseDescription>