public virtual void TestCRC32()
{
byte[] b = new byte[256];
for (int i = 0; i < b.Length; i++)
b[i] = (byte)i;
IChecksum digest = new CRC32();
digest.Update(b, 0, b.Length);
Int64 expected = 688229491;
Assert.AreEqual(expected, digest.Value);
}
public virtual void TestRandom()
{
IChecksum c1 = new CRC32();
IChecksum c2 = new BufferedChecksum(new CRC32());
int iterations = AtLeast(10000);
for (int i = 0; i < iterations; i++)
{
switch (Random().Next(4))
{
case 0:
// update(byte[], int, int)
int length = Random().Next(1024);
byte[] bytes = new byte[length];
Random().NextBytes(bytes);
c1.Update(bytes, 0, bytes.Length);
c2.Update(bytes, 0, bytes.Length);
break;
case 1:
// update(int)
int b = Random().Next(256);
c1.Update(b);
c2.Update(b);
break;
case 2:
// reset()
c1.Reset();
c2.Reset();
break;
case 3:
// getValue()
Assert.AreEqual(c1.Value, c2.Value);
break;
}
}
Assert.AreEqual(c1.Value, c2.Value);
}