public void TestHashStreamDisposed()
{
using (HashStream hs = new HashStream(new SHA256Managed()))
{
hs.Close();
hs.Close(); //<- fails, already closed and/or disposed
}
}
} // func ReadStreamData
private static (string hashName, byte[] hashValue) CopyData(bool shouldDeflate, Stream srcStream, byte[] buf, int readed, Stream dstStream)
{
// pack destination stream
var dst = shouldDeflate
? new GZipStream(dstStream, CompressionMode.Compress, true)
: dstStream;
using (var dstHashStream = new HashStream(dst, HashStreamDirection.Write, false, SHA256.Create()))
{
try
{
// copy stream into file
dstHashStream.Write(buf, 0, readed);
srcStream.CopyTo(dst);
}
finally
{
dstHashStream.Flush();
dstHashStream.Dispose();
}
dstHashStream.Close();
return("SHA2_256", dstHashStream.HashSum);
}
} // func CopyData
public void TestHashStreamWrite()
{
Random r = new Random();
byte[][] test =
new byte[][]
{
new byte[300],
new byte[1],
new byte[500],
new byte[11],
new byte[1],
new byte[1000],
};
using (HashStream hs = new HashStream(new SHA256Managed()))
using (MemoryStream ms = new MemoryStream())
using (HashStream hsWrap = new HashStream(new SHA256Managed(), ms))
{
Assert.IsTrue(hs.CanWrite);
long len = 0;
foreach (byte[] bytes in test)
{
len += bytes.Length;
r.NextBytes(bytes);
hsWrap.Write(bytes, 0, bytes.Length);
hs.Write(bytes, 0, bytes.Length);
}
for (int i = 0; i < 5; i++)
{
len += 1;
byte val = (byte)r.Next(255);
hsWrap.WriteByte(val);
hs.WriteByte(val);
}
Assert.AreEqual(len, ms.Position);
Hash expect = Hash.SHA256(ms.ToArray());
Hash actual = hs.Close();
Assert.AreEqual(expect, actual);
Assert.AreEqual(expect.ToArray(), actual.ToArray());
Assert.AreEqual(expect.ToString(), actual.ToString());
//wrapped test
actual = hsWrap.FinalizeHash();
Assert.AreEqual(expect, actual);
Assert.AreEqual(expect.ToArray(), actual.ToArray());
Assert.AreEqual(expect.ToString(), actual.ToString());
}
}
