466     type Subject = MediaTrackConstraint;  typedef
470         let subject = Subject::default();  in default()
487                 Subject::from(MediaTrackSetting::Bool(true)),  in setting()
488                 Subject::Bool(ValueConstraint::Bare(_))  in setting()
491                 Subject::from(MediaTrackSetting::Integer(42)),  in setting()
492                 Subject::IntegerRange(ValueRangeConstraint::Bare(_))  in setting()
495                 Subject::from(MediaTrackSetting::Float(4.2)),  in setting()
496                 Subject::FloatRange(ValueRangeConstraint::Bare(_))  in setting()
499                 Subject::from(MediaTrackSetting::String("string".to_owned())),  in setting()
500                 Subject::String(ValueConstraint::Bare(_))  in setting()
507                 Subject::from(false),  in bool()
508                 Subject::from(ValueConstraint::<bool>::default()),  in bool()
509                 Subject::from(ResolvedValueConstraint::<bool>::default()),  in bool()
515                 assert!(matches!(subject, Subject::Bool(_)));  in bool()
522                 Subject::from(42_u64),  in integer_range()
523                 Subject::from(ValueRangeConstraint::<u64>::default()),  in integer_range()
524                 Subject::from(ResolvedValueRangeConstraint::<u64>::default()),  in integer_range()
530                 assert!(matches!(subject, Subject::IntegerRange(_)));  in integer_range()
537                 Subject::from(42.0_f64),  in float_range()
538                 Subject::from(ValueRangeConstraint::<f64>::default()),  in float_range()
539                 Subject::from(ResolvedValueRangeConstraint::<f64>::default()),  in float_range()
545                 assert!(matches!(subject, Subject::FloatRange(_)));  in float_range()
552                 Subject::from(""),  in string()
553                 Subject::from(String::new()),  in string()
554                 Subject::from(ValueConstraint::<String>::default()),  in string()
555                 Subject::from(ResolvedValueConstraint::<String>::default()),  in string()
561                 assert!(matches!(subject, Subject::String(_)));  in string()
568                 Subject::from(vec![""]),  in string_sequence()
569                 Subject::from(vec![String::new()]),  in string_sequence()
570                 Subject::from(ValueSequenceConstraint::<String>::default()),  in string_sequence()
571                 Subject::from(ResolvedValueSequenceConstraint::<String>::default()),  in string_sequence()
577                 assert!(matches!(subject, Subject::StringSequence(_)));  in string_sequence()
584         let empty_subject = Subject::Empty(EmptyConstraint {});  in is_empty()
589             Subject::Bool(ValueConstraint::Bare(true)),  in is_empty()
590             Subject::FloatRange(ValueRangeConstraint::Bare(42.0)),  in is_empty()
591             Subject::IntegerRange(ValueRangeConstraint::Bare(42)),  in is_empty()
592             Subject::String(ValueConstraint::Bare("string".to_owned())),  in is_empty()
593             Subject::StringSequence(ValueSequenceConstraint::Bare(vec!["string".to_owned()])),  in is_empty()
605                 Subject::Empty(EmptyConstraint {}),  in to_resolved()
609                 Subject::Bool(ValueConstraint::Bare(true)),  in to_resolved()
613                 Subject::FloatRange(ValueRangeConstraint::Bare(42.0)),  in to_resolved()
619                 Subject::IntegerRange(ValueRangeConstraint::Bare(42)),  in to_resolved()
625                 Subject::String(ValueConstraint::Bare("string".to_owned())),  in to_resolved()
631                 Subject::StringSequence(ValueSequenceConstraint::Bare(vec!["string".to_owned()])),  in to_resolved()
648         type Subject = ResolvedMediaTrackConstraint;  typedef
653                 (Subject::Empty(EmptyConstraint {}), "<empty>"),  in to_string()
655                     Subject::Bool(ResolvedValueConstraint::default().exact(true)),  in to_string()
659                     Subject::FloatRange(ResolvedValueRangeConstraint::default().exact(42.0)),  in to_string()
663                     Subject::IntegerRange(ResolvedValueRangeConstraint::default().exact(42)),  in to_string()
667                     Subject::String(ResolvedValueConstraint::default().exact("string".to_owned())),  in to_string()
671                     Subject::StringSequence(  in to_string()
694     type Subject = MediaTrackConstraint;  typedef
698         let subject = Subject::Empty(EmptyConstraint {});  in empty()
706         let subject = Subject::Bool(true.into());  in bool_bare()
714         let subject = Subject::Bool(ResolvedValueConstraint::default().exact(true).into());  in bool_constraint()
722         let subject = Subject::IntegerRange(42.into());  in integer_range_bare()
731             Subject::IntegerRange(ResolvedValueRangeConstraint::default().exact(42).into());  in integer_range_constraint()
739         let subject = Subject::FloatRange(4.2.into());  in float_range_bare()
748             Subject::FloatRange(ResolvedValueRangeConstraint::default().exact(42.0).into());  in float_range_constraint()
756         let subject = Subject::StringSequence(vec!["foo".to_owned(), "bar".to_owned()].into());  in string_sequence_bare()
764         let subject = Subject::StringSequence(  in string_sequence_constraint()
776         let subject = Subject::String("foo".to_owned().into());  in string_bare()
784         let subject = Subject::String(  in string_constraint()