public void CalculateHexChecksumTest()
{
// Arrange
byte[] byteArray1 = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
byte[] byteArray2 = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
byte[] byteArray3 = new byte[] { };
// Act
string hex1 = ChecksumHelper.CalculateHexChecksum(byteArray1);
string hex2 = ChecksumHelper.CalculateHexChecksum(byteArray2);
string hex3 = ChecksumHelper.CalculateHexChecksum(byteArray3);
string hex4 = ChecksumHelper.CalculateHexChecksum(byteArray1, byteArray2);
// Assert
Assert.IsNotNull(hex1);
Assert.IsNotNull(hex2);
Assert.IsNotNull(hex3);
Assert.IsNotNull(hex4);
Assert.AreEqual(sha256LengthInBytes * 2, hex1.Length, "Every byte should convert to two Hex chars");
Assert.AreEqual(hex1, hex2);
Assert.AreNotEqual(hex2, hex3);
Assert.AreNotEqual(hex2, hex4);
}