// async tests (for stack propagation)
private void ReadCallback(IAsyncResult ar)
{
DeflateStream s = (DeflateStream)ar.AsyncState;
s.EndRead(ar);
try {
// can we do something bad here ?
Assert.IsNotNull(Environment.GetEnvironmentVariable("USERNAME"));
message = "Expected a SecurityException";
}
catch (SecurityException) {
message = null;
reset.Set();
}
catch (Exception e) {
message = e.ToString();
}
}
/// <summary>Waits for the pending asynchronous read to complete.</summary>
/// <returns>The number of bytes read from the stream, between zero (0) and the number of bytes you requested. <see cref="T:System.IO.Compression.GZipStream" /> returns zero (0) only at the end of the stream; otherwise, it blocks until at least one byte is available.</returns>
/// <param name="asyncResult">The reference to the pending asynchronous request to finish.</param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="asyncResult" /> is null.</exception>
/// <exception cref="T:System.ArgumentException">
/// <paramref name="asyncResult" /> did not originate from a <see cref="M:System.IO.Compression.DeflateStream.BeginRead(System.Byte[],System.Int32,System.Int32,System.AsyncCallback,System.Object)" /> method on the current stream.</exception>
/// <exception cref="T:System.InvalidOperationException">The end operation cannot be performed because the stream is closed.</exception>
public override int EndRead(IAsyncResult async_result)
{
return(deflateStream.EndRead(async_result));
}