mcs/class/System/Test/System.IO.Compression/DeflateStreamCas.cs

   1 //
   2 // DeflateStreamCas.cs -CAS unit tests for System.IO.Compression.DeflateStream
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30
  31 using NUnit.Framework;
  32
  33 using System;
  34 using System.IO;
  35 using System.IO.Compression;
  36 using System.Security;
  37 using System.Security.Permissions;
  38 using System.Threading;
  39
  40 namespace MonoCasTests.System.IO.Compression {
  41
  42         [TestFixture]
  43         [Category ("CAS")]
  44         public class DeflateStreamCas {
  45
  46                 private const int timeout = 30000;
  47                 private string message;
  48
  49                 static ManualResetEvent reset;
  50
  51                 [TestFixtureSetUp]
  52                 public void FixtureSetUp ()
  53                 {
  54                         // this occurs with a "clean" stack (full trust)
  55                         reset = new ManualResetEvent (false);
  56                 }
  57
  58                 [TestFixtureTearDown]
  59                 public void FixtureTearDown ()
  60                 {
  61                         reset.Close ();
  62                 }
  63
  64                 [SetUp]
  65                 public void SetUp ()
  66                 {
  67                         if (!SecurityManager.SecurityEnabled)
  68                                 Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
  69                 }
  70
  71                 // async tests (for stack propagation)
  72
  73                 private void ReadCallback (IAsyncResult ar)
  74                 {
  75                         DeflateStream s = (DeflateStream)ar.AsyncState;
  76                         s.EndRead (ar);
  77                         try {
  78                                 // can we do something bad here ?
  79                                 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
  80                                 message = "Expected a SecurityException";
  81                         }
  82                         catch (SecurityException) {
  83                                 message = null;
  84                                 reset.Set ();
  85                         }
  86                         catch (Exception e) {
  87                                 message = e.ToString ();
  88                         }
  89                 }
  90
  91                 [Test]
  92                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
  93                 public void AsyncRead ()
  94                 {
  95                         DeflateStream cs = new DeflateStream (new MemoryStream (), CompressionMode.Decompress);
  96                         message = "AsyncRead";
  97                         reset.Reset ();
  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);
 103                         cs.Close ();
 104                 }
 105
 106                 private void WriteCallback (IAsyncResult ar)
 107                 {
 108                         DeflateStream s = (DeflateStream)ar.AsyncState;
 109                         s.EndWrite (ar);
 110                         try {
 111                                 // can we do something bad here ?
 112                                 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
 113                                 message = "Expected a SecurityException";
 114                         }
 115                         catch (SecurityException) {
 116                                 message = null;
 117                                 reset.Set ();
 118                         }
 119                         catch (Exception e) {
 120                                 message = e.ToString ();
 121                         }
 122                 }
 123
 124                 [Test]
 125                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
 126                 public void AsyncWrite ()
 127                 {
 128                         DeflateStream cs = new DeflateStream (new MemoryStream (), CompressionMode.Compress);
 129                         message = "AsyncWrite";
 130                         reset.Reset ();
 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
 137 //                      cs.Close ();
 138                 }
 139         }
 140 }
 141
 142 #endif