180             &FACING_MODE => FacingMode::user(),  in settings()
187             (&FACING_MODE, FacingMode::user().into()),  in settings()
250             let actual = value_sequence_constraint![vec![FacingMode::user()]];  in sequence()
252             let expected = ValueSequenceConstraint::Bare(vec![FacingMode::user()]);  in sequence()
259                 ideal: vec![FacingMode::user()],  in sequence()
263                 ResolvedValueSequenceConstraint::default().ideal(vec![FacingMode::user()]),  in sequence()
282                 exact: vec![FacingMode::user(), FacingMode::environment()]  in mandatory_constraints()
307                         .exact(vec![FacingMode::user(), FacingMode::environment()]),  in mandatory_constraints()
333                     exact: vec![FacingMode::user(), FacingMode::environment()]  in advanced_constraints()
356                     .exact(vec![FacingMode::user(), FacingMode::environment()])  in advanced_constraints()
377                     exact: vec![FacingMode::user(), FacingMode::environment()]  in constraints()
395                         exact: vec![FacingMode::user(), FacingMode::environment()]  in constraints()
420                         .exact(vec![FacingMode::user(), FacingMode::environment()])  in constraints()
442                         .exact(vec![FacingMode::user(), FacingMode::environment()])  in constraints()