public void Write_8BE()
{
byte[] want = { 0x12, 0xAD, 0xBE, 0xEF, 0x98, 0x76, 0xAB, 0xCD };
byte[] got;
using (var os = new OtpOutputStream())
{
os.Write8BE(0x12ADBEEF9876ABCD);
got = os.ToArray();
}
CollectionAssert.AreEqual(want, got);
}