public void IdentityFieldMustBeGreatThanZero()
        {
            //Arrange
            var id = 1;

            ubs = new Ubs();
            //Act
            ubs.SetId(id);
            //Assert
            ubs.Id.Should().Be(id);
            ubs.Invalid.Should().BeFalse();
            ubs.Valid.Should().BeTrue();
            ubs.Notifications.Count.Should().Be(0);
        }
        public void IdentityFieldCanNotBeNegativeNumber()
        {
            //Arrange
            var id = -1;

            ubs = new Ubs();
            //Act
            ubs.SetId(id);
            //Assert
            ubs.Id.Should().Be(0);
            ubs.Invalid.Should().BeTrue();
            ubs.Valid.Should().BeFalse();
            ubs.Notifications.Count.Should().Be(1);
        }