## Property Constraint (NUnit 2.4.2)

PropertyConstraint is used to test for existence of a named property and optionally tests its value. It may also be used as a prefix for other constraints to be applied to the property.

Syntax Helper | Constructor | Operation
--- | --- | ---
Has.Property( string ) | PropertyConstraint( string ) | tests that a specific property exists
Has.Property( string, object ) | PropertyConstraint( string, object ) | tests that the value of a property is equal to the value provided
Has.Property( string, Constraint)... | PropertyConstraint | applies the following constraint to the value of a named property
Has.Length( int ) | PropertyConstraint | tests that the object's Length property is equal to the value given
Has.Count( int ) | PropertyConstraint | tests that the object's Count property is equal to the value given