public void ToHexadecimal()
 {
     FindDialogInteractor i = new FindDialogInteractor();
     Assert.AreEqual(new byte[] { 0x0A }, i.ToHexadecimal("0A"));
     Assert.AreEqual(new byte[] { 0x0A, 0x0B }, i.ToHexadecimal("0A0b"));
     Assert.AreNotEqual(new byte[] { 0x0A, 0x0B }, i.ToHexadecimal("0A0C"));
     Assert.IsNull(i.ToHexadecimal("AGFA"));
 }