public void ReturnsFalseIfPersonAgeBiggerThanNumberSpeicifed()
        {
            var specification = new PersonUntilAgeSpecification(14);
            var person = new Person() { Age = 15 };

            Assert.False(specification.IsSatisfiedBy(person));
        }
        public void ReturnsTrueIfPersonAgeLesserThanNumberSpeicifed()
        {
            var specification = new PersonUntilAgeSpecification(16);
            var person = new Person() { Age = 15 };

            Assert.True(specification.IsSatisfiedBy(person));
        }
        public void ReturnsTrueIfNoValueIsSpecified()
        {
            var specification = new PersonUntilAgeSpecification(null);
            var person = new Person();

            Assert.True(specification.IsSatisfiedBy(person));
        }