public void IsEqual_OneNull_ReturnsFalse()
        {
            //prepare
            _mappingArguments.Getter = t => null;
            var propertyMapping = new GuidPropertyMapping <GuidPropertyMappingTest>(_mappingArguments);
            DirectoryAttributeModification modification;
            //act
            var value = propertyMapping.IsEqual(this, _guid, out modification);

            //assert
            value.Should().Be.False();
            modification.Should().Not.Be.Null();
        }
        public void IsEqual_SameGuids_ReturnsTrue()
        {
            //prepare
            _mappingArguments.Getter = t => new Guid(_guid.ToString());
            var propertyMapping = new GuidPropertyMapping <GuidPropertyMappingTest>(_mappingArguments);
            DirectoryAttributeModification modification;
            //act
            var value = propertyMapping.IsEqual(this, _guid, out modification);

            //assert
            value.Should().Be.True();
            modification.Should().Be.Null();
        }