public void TestHashCalculation()
{
FileInfo fileInfo = new FileInfo(GetType().Assembly.Location);
byte[] hash;
using (FileStream fileStream = fileInfo.OpenRead())
using (HashAlgorithm hashCalculator = HashAlgorithm.Create(HashAlgorithmName.Name))
{
hash = hashCalculator.ComputeHash(fileStream);
}
HashStream hashStream;
using (FileStream fileStream = fileInfo.OpenRead())
using (RandomReadNumberStream randomReadStream = new RandomReadNumberStream(fileStream))
using (hashStream = new HashStream(randomReadStream, CryptoStreamMode.Read, HashAlgorithmName))
{
hashStream.CopyTo(Stream.Null);
}
Assert.AreEqual(hash, hashStream.HashResult.HashBytes);
using (FileStream fileStream = fileInfo.OpenRead())
using (RandomReadNumberStream randomReadStream = new RandomReadNumberStream(fileStream))
using (hashStream = new HashStream(Stream.Null, CryptoStreamMode.Write, HashAlgorithmName))
{
randomReadStream.CopyTo(hashStream);
}
Assert.AreEqual(hash, hashStream.HashResult.HashBytes);
}