This tests that if aria-labelledby is used, then aria-label attributes are not used.

Alpha Beta Delta Eta Epsilon Theta
usingNone.title: [null]
usingNone.description: [null]
usingLabel.title: [null]
usingLabel.description: [null]
usingLabelledby.title: [null]
usingLabelledby.description: [null]
usingLabeledby.title: [null]
usingLabeledby.description: [null]