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

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