This test checks that a script focus after a mouse click on a button that does not match :focus visible, does NOT match :focus-visible.

Click on the button that says "Click me".
If the element that says "Focused" has a red outline then the test result is FAILURE, if it has a green background then the test result is SUCCESS.
Click me
Focused

PASS ":focus-visible" should be a valid selector
PASS Script focus after mouse click on a button that does not match :focus-visible, does NOT match :focus-visible