public void ToLengthReturnsExpectedValue()
        {
            var value = _fixture.Create <int>().AsDbaseFieldCompatibleDbaseIntegerDigitsValue();
            var sut   = new DbaseIntegerDigits(value);

            var result = sut.ToLength();

            Assert.Equal(new DbaseFieldLength(sut.ToInt32()), result);
        }
        public void ToLengthThrowsWhenNoDigits()
        {
            var sut = new DbaseIntegerDigits(0);

            Assert.Throws <InvalidOperationException>(() => sut.ToLength());
        }