public async Task TestHashCalculationAsync()
{
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))
{
await hashStream.CopyToAsync(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))
{
await randomReadStream.CopyToAsync(hashStream);
}
Assert.AreEqual(hash, hashStream.HashResult.HashBytes);
}
public async Task TestWriteAsync()
{
byte[] wrapContent, plainContent;
using (FileStream fileStream = readFileInfo.OpenRead())
using (RandomReadNumberStream randomReadNumberStream = new RandomReadNumberStream(fileStream))
{
using (MemoryStream memoryStream = new MemoryStream())
using (WrapStream wrapStream = new WrapStreamImpl(memoryStream))
{
await randomReadNumberStream.CopyToAsync(wrapStream);
wrapContent = memoryStream.ToArray();
}
fileStream.Seek(0, SeekOrigin.Begin);
using (MemoryStream memoryStream = new MemoryStream())
{
await randomReadNumberStream.CopyToAsync(memoryStream);
plainContent = memoryStream.ToArray();
}
}
Assert.AreEqual(plainContent, wrapContent);
}
public void TestRead()
{
using (FileStream fileStream = readFileInfo.OpenRead())
using (RandomReadNumberStream randomReadNumberStream = new RandomReadNumberStream(fileStream))
using (WrapStream wrapStream = new WrapStreamImpl(randomReadNumberStream))
{
byte[] wrapContent = wrapStream.ReadToEnd();
fileStream.Seek(0, SeekOrigin.Begin);
byte[] fileContent = fileStream.ReadToEnd();
Assert.AreEqual(wrapContent, fileContent);
}
}
public async Task TestReadAsync()
{
using (FileStream fileStream = readFileInfo.OpenRead())
using (RandomReadNumberStream randomReadNumberStream = new RandomReadNumberStream(fileStream))
using (WrapStream wrapStream = new WrapStreamImpl(randomReadNumberStream))
{
byte[] wrapContent = await wrapStream.ReadToEndAsync();
fileStream.Seek(0, SeekOrigin.Begin);
byte[] plainContent = await fileStream.ReadToEndAsync();
Assert.AreEqual(plainContent, wrapContent);
}
}