====== Tests ======
The following tests are available in Raakt. These generate error message objects. Each error message has an id and a description text. See [[Error message ids]] for more information.

  * **check_areas:** Check [[http://www.w3.org/TR/html4/struct/objects.html#h-13.6.1|area elements]] and make sure they have a non-empty alt attribute.
  * **check_character_set:** Verify that the charater set specified in HTTP headers match that specidied in the [[http://www.w3.org/TR/html4/charset.html#h-5.2.2|HTML meta element]]. This test will be skipped if you don't pass a hash of http headers when setting up the test.
  * **check_document_structure:** Verify that heading elements (h1-h6) appear in the correct order (no levels skipped).
  * **check_embed:** Verify that the embed element isn't used. It does not provide a way to express a text representation.
  * **check_fieldset_legend:** Check all fieldsets and make sure each fieldset has a legend element with text content.
  * **check_for_formatting_elements:** Check that none of the following elements are used: font, b, i, u, tt, small, big, strike, s. styling should be done in CSS.
  * **check_for_language_info:** Make sure the root [[http://www.w3.org/TR/html4/struct/global.html#h-7.3|HTML element]] has a non-empty lang attribute. See also check_valid_language_code below.
  * **check_for_nested_tables:** Make sure the document doesn't contain nested tables.
  * **check_form:** Check that all editable form elements have an associated [[http://www.w3.org/TR/html4/interact/forms.html#h-17.9.1|label element]] connected via the for attribute.
  * **check_frames:** Check that all frames have a title attribute.
  * **check_has_heading:** Check that the document has at least one h1 heading.
  * **check_images:** Check that all [[http://www.w3.org/TR/html4/struct/objects.html#h-13.2|img elements]] have an alt attribute.
  * **check_input_type_img:** Check that image buttons have a non-empty alt attribute.
  * **check_link_text:** Check that the document doesn't contain ambiguous link texts. A typical example is several links with the text "Read more" pointing to different URLs.
  * **check_refresh:** Check that there isn't a meta element conatining a refresh instruction.
  * **check_tables:** Make sure each table has at least one table heading.
  * **check_title:** Check that the document has a non-empty title element.
  * **check_valid_language_code:** Check that the first two characters of the lang attribute value on the HTML element is in the list of valid [[http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes||ISO 639-1 language codes]]. 



===== Relation to other evaluation methodologies =====
This table lists the Raakt tests and how they relate to tests defined in other accessibility evaluation methodologies, e.g. the [[http://www.wabcluster.org/uwem/tests/|UWEM 1.0 (Unified Web Evaluation Methodology)]] and the [[http://www.w3.org/TR/WAI-WEBCONTENT-TECHS/|Web Content Accessibility Guidelines]] (WCAG) 1.0.

The table is not complete yet. Mapping is underway. 

^ Raakt test      ^ UWEM 1.0       ^ WCAG 1.0             ^
|check_areas|1.1_HTML_01|Checkpoint 1.1|
|check_character_set|-|...|
|check_document_structure|3.5_HTML_03|Checkpoint 3.5|
|check_embed|1.1_HTML_06|...|
|check_fieldset_legend|12.3_HTML_01|...|
|check_for_formatting_elements|7.2_HTML_01 and 7.3_HTML_01|Checkpoint 11.2|
|check_for_language_info|-|Checkpoint 4.3|
|check_for_nested_tables|-|Checkpoint 5.3|
|check_form|12.4_HTML_02|Checkpoint 12.4|
|check_frames|12.1_HTML_01|Checkpoint 12.1|
|check_has_heading|-|...|
|check_images|-|Checkpoint 1.1|
|check_input_type_img|1.1_HTML_01|Checkpoint 1.1|
|check_link_text|-|...|
|check_refresh|-|...|
|check_tables|-|Checkpoint 5.1|
|check_title|-|...|
|check_valid_language_code|-|...|