public void SerializationIsSymmetric()
        {
            var buffer = new ArrayBufferWriter <Byte>();
            var value  = RandomSubject;

            value.Serialize(buffer);
            ConnectionSecure.Deserialize(buffer.WrittenMemory.Span, out var deserialized, out var _);

            Assert.Equal(expected: value.Challenge, actual: deserialized.Challenge);
        }
        public void DeserializationReturnsSurplusData()
        {
            var value  = RandomSubject;
            var extra  = Random.UInt();
            var buffer = new ArrayBufferWriter <Byte>();

            buffer.WriteSerializable(value)
            .WriteUInt32LE(extra);

            ConnectionSecure.Deserialize(buffer.WrittenMemory.Span, out var _, out var surplus);

            Assert.Equal(expected: sizeof(UInt32), actual: surplus.Length);
            Assert.Equal(expected: extra, actual: BitConverter.ToUInt32(surplus));
        }
        public void DeserializationFailsWithInsufficientData()
        {
            var result = ConnectionSecure.Deserialize(new Byte[0], out var _, out var _);

            Assert.False(result);
        }