public void ParseUInt64Test(string actual, object expected)
        {
            var actualResult = ParseUtility.ParseUInt64(
                (object)null,
                new FuncGetter<object>((carrier, name) => new[] { actual }),
                string.Empty);

            actualResult.Should().Be((ulong?)expected);

            actualResult = ParseUtility.ParseUInt64(
                (object)null,
                new FuncGetter<object>((carrier, name) => new List<string> { actual }),
                string.Empty);

            actualResult.Should().Be((ulong?)expected);
        }