2 // DeflateStreamCas.cs -CAS unit tests for System.IO.Compression.DeflateStream
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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14 // permit persons to whom the Software is furnished to do so, subject to
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31 using NUnit.Framework;
35 using System.IO.Compression;
36 using System.Security;
37 using System.Security.Permissions;
38 using System.Threading;
40 namespace MonoCasTests.System.IO.Compression {
44 public class DeflateStreamCas {
46 private const int timeout = 30000;
47 private string message;
49 static ManualResetEvent reset;
52 public void FixtureSetUp ()
54 // this occurs with a "clean" stack (full trust)
55 reset = new ManualResetEvent (false);
59 public void FixtureTearDown ()
67 if (!SecurityManager.SecurityEnabled)
68 Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
71 // async tests (for stack propagation)
73 private void ReadCallback (IAsyncResult ar)
75 DeflateStream s = (DeflateStream)ar.AsyncState;
78 // can we do something bad here ?
79 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
80 message = "Expected a SecurityException";
82 catch (SecurityException) {
87 message = e.ToString ();
92 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
93 public void AsyncRead ()
95 DeflateStream cs = new DeflateStream (new MemoryStream (), CompressionMode.Decompress);
96 message = "AsyncRead";
98 IAsyncResult r = cs.BeginRead (new byte[0], 0, 0, new AsyncCallback (ReadCallback), cs);
99 Assert.IsNotNull (r, "IAsyncResult");
100 if (!reset.WaitOne (timeout, true))
101 Assert.Ignore ("Timeout");
102 Assert.IsNull (message, message);
106 private void WriteCallback (IAsyncResult ar)
108 DeflateStream s = (DeflateStream)ar.AsyncState;
111 // can we do something bad here ?
112 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
113 message = "Expected a SecurityException";
115 catch (SecurityException) {
119 catch (Exception e) {
120 message = e.ToString ();
125 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
126 public void AsyncWrite ()
128 DeflateStream cs = new DeflateStream (new MemoryStream (), CompressionMode.Compress);
129 message = "AsyncWrite";
131 IAsyncResult r = cs.BeginWrite (new byte[1], 0, 1, new AsyncCallback (WriteCallback), cs);
132 Assert.IsNotNull (r, "IAsyncResult");
133 if (!reset.WaitOne (timeout, true))
134 Assert.Ignore ("Timeout");
135 Assert.IsNull (message, message);
136 // the Close is currently buggy in Mono