Text selector for "I like turtles".
Text selector for "I like turtles" excluded by class.
Text selector for "I love Turtles".
Text selector for "I like Turtles" excluded on like and case sensitivity.
Overflow
This h4 should not be flagged due to #h4root.
This h6 should not be flagged due to #h6root.
Custom tests
Exclusions
This editor-only utility heading will be skipped in the outline
Accessible name calculation in outline excluding hidden text
Link with ignored text
Aria:hidden image
Suspiciously long heading. Headings should not be used for emphasis, but rather for a document outline, so if you find yourself talking this much, this probably is being used for visual formatting, not a heading.
Hidden element handlers
Display:none
Visibility:hidden
Aria:hidden text
HTML hidden attribute
Skipped heading level
Hidden click here links
Accessible name calculation
Inputs with titles
Pseudo selectors in a link
Link with SVG image with multiple labels, one should be ignored:
click here
We should be testing SVG as a developer test, and an aria labelled region should not negate inner name calculation on an SVG.
Null aria label: Null aria
Bad via recursive aria-labelledby: here
Good via inner aria-labelled element: Here
Bad because IMG tag cannot have a ::before: 
Slotted template
Empty slot:
a
skipped level in a slot
Slot content text filling correctly
b
ec
d@