public void ParseReturnsExpectedResult()
        {
            var guid = Guid.NewGuid();

            var sut = Uuid.Parse(guid.ToString());

            Assert.Equal(Uuid.FromGuid(guid), sut);
        }
        public void ArgumentNullException()
        {
            var ex = Assert.Throws <ArgumentNullException>(() => Uuid.Parse(null));

            Assert.Equal("value", ex.ParamName);
        }