public async Task xxHash_Implementation_ComputeHashAsync_HashSizeInBits_MagicallyInvalid_Throws()
        {
            var xxHashConfigMock = new Mock <IxxHashConfig>();
            {
                var readCount = 0;

                xxHashConfigMock.SetupGet(xhc => xhc.HashSizeInBits)
                .Returns(() => {
                    readCount += 1;

                    if (readCount == 1)
                    {
                        return(32);
                    }

                    return(33);
                });

                xxHashConfigMock.Setup(xhc => xhc.Clone())
                .Returns(() => xxHashConfigMock.Object);
            }


            var xxHash = new xxHash_Implementation(xxHashConfigMock.Object);

            using (var memoryStream = new MemoryStream(new byte[1]))
            {
                await Assert.ThrowsAsync <NotImplementedException>(
                    () => xxHash.ComputeHashAsync(memoryStream));
            }
        }
        public void xxHash_Implementation_ComputeHash_HashSizeInBits_MagicallyInvalid_Throws()
        {
            var xxHashConfigMock = new Mock <IxxHashConfig>();
            {
                var readCount = 0;

                xxHashConfigMock.SetupGet(xhc => xhc.HashSizeInBits)
                .Returns(() => {
                    readCount += 1;

                    if (readCount == 1)
                    {
                        return(32);
                    }

                    return(33);
                });

                xxHashConfigMock.Setup(xhc => xhc.Clone())
                .Returns(() => xxHashConfigMock.Object);
            }


            var xxHash = new xxHash_Implementation(xxHashConfigMock.Object);

            Assert.Throws <NotImplementedException>(
                () => xxHash.ComputeHash(new byte[1]));
        }