All WCAG 2 Test Rules

Test Rules

These Test Rules have been approved by the Accessibility Guidelines Working Group. They are fully implemented in at least one evaluation tool or methodology.

• autocomplete attribute has valid value
• Button has non-empty accessible name
• Element marked as decorative is not exposed
• Element with lang attribute has valid language tag
• Form field has non-empty accessible name
• HTML page has lang attribute
• HTML page has non-empty title
• HTML page lang and xml:lang attributes have matching values
• HTML page lang attribute has valid language tag
• Image button has non-empty accessible name
• Image has non-empty accessible name
• Letter spacing in style attributes is not !important
• Link has non-empty accessible name
• Word spacing in style attributes is not !important

Proposed Test Rules

Proposed test rules will be published when they have at least one implementation and are approved by the AGWG.

• ARIA required context role
• ARIA required owned elements
• ARIA state or property has valid value
• ARIA state or property is permitted
• aria-* attribute is defined in WAI-ARIA
• Attribute is not duplicated
• Audio and visuals of video element have transcript
• audio element content has text alternative
• audio element content has transcript
• audio element content is media alternative for text
• audio or video avoids automatically playing audio
• audio or video that plays automatically has a control mechanism
• Audio or video that plays automatically has no audio that lasts more than 3 seconds
• Block of repeated content is collapsible
• Bypass Blocks of Repeated Content
• Content has alternative for visual reference
• DEPRECATED — Image filename is accessible name for image
• DEPRECATED — video element visual content has description track
• DEPRECATED — video element visual-only content has description track
• Device motion based changes to the content can also be created from the user interface
• Device motion based changes to the content can be disabled
• Document has a landmark with non-repeated content
• Document has an instrument to move focus to non-repeated content
• Document has heading for non-repeated content
• Element in sequential focus order has visible focus
• Element with aria-hidden has no focusable content
• Element with presentational children has no focusable content
• Element with role attribute has required states and properties
• Error message describes invalid form field value
• Focusable element has no keyboard trap
• Focusable element has no keyboard trap via non-standard navigation
• Focusable element has no keyboard trap via standard navigation
• Form field label is descriptive
• headers attribute specified on a cell refers to cells in the same table element
• Heading has non-empty accessible name
• Heading is descriptive
• HTML element language subtag matches language
• HTML graphics contain no text
• HTML page language subtag matches default language
• HTML page title is descriptive
• id attribute value is unique
• iframe element has non-empty accessible name
• iframe elements with identical accessible names have equivalent purpose
• iframe with negative tabindex has no interactive elements
• Image accessible name is descriptive
• Image not in the accessibility tree is decorative
• Line height in style attributes is not !important
• Link in context is descriptive
• Link is descriptive
• Links with identical accessible names and context serve equivalent purpose
• Links with identical accessible names have equivalent purpose
• Menuitem has non-empty accessible name
• meta element has no refresh delay
• meta element has no refresh delay (no exception)
• meta viewport allows for zoom
• No keyboard shortcut uses only printable characters
• Object element rendering non-text content has non-empty accessible name
• Orientation of the page is not restricted using CSS transform property
• role attribute has valid value
• Scrollable element is keyboard accessible
• svg element with explicit role has non-empty accessible name
• Table header cell has assigned cells
• Text content that changes automatically can be paused, stopped or hidden
• Text has enhanced contrast
• Text has minimum contrast
• video element auditory content has accessible alternative
• video element auditory content has captions
• video element content is media alternative for text
• video element visual content has accessible alternative
• video element visual content has audio description
• video element visual content has strict accessible alternative
• video element visual-only content has accessible alternative
• video element visual-only content has audio track alternative
• video element visual-only content has transcript
• video element visual-only content is media alternative for text
• Visible label is part of accessible name
• Zoomed text node is not clipped with CSS overflow