mcs/class/corlib/Test/System.IO/FileStreamCas.cs

   1 //
   2 // FileStreamCas.cs -CAS unit tests for System.IO.FileStream
   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 using NUnit.Framework;
  30
  31 using System;
  32 using System.IO;
  33 using System.Reflection;
  34 using System.Security;
  35 using System.Security.Permissions;
  36
  37 namespace MonoCasTests.System.IO {
  38
  39         [TestFixture]
  40         [Category ("CAS")]
  41         public class FileStreamCas {
  42
  43                 private MonoTests.System.IO.FileStreamTest fst;
  44
  45                 [TestFixtureSetUp]
  46                 public void FixtureSetUp ()
  47                 {
  48                         // this occurs with a "clean" stack (full trust)
  49                         fst  = new MonoTests.System.IO.FileStreamTest ();
  50                 }
  51
  52                 [SetUp]
  53                 public void SetUp ()
  54                 {
  55                         if (!SecurityManager.SecurityEnabled)
  56                                 Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
  57                 }
  58
  59                 // Partial Trust Tests - i.e. call "normal" unit with reduced privileges
  60
  61                 [Test]
  62                 [ExpectedException (typeof (SecurityException))]
  63                 public void PartialTrust_DenyUnrestricted_Failure ()
  64                 {
  65                         try {
  66                                 // SetUp/TearDown requires FileIOPermission
  67                                 fst.SetUp ();
  68                                 // so does the call but that's the test ;-)
  69                                 CallRestricted (fst);
  70                         }
  71                         finally {
  72                                 fst.TearDown ();
  73                         }
  74                 }
  75
  76                 [PermissionSet (SecurityAction.Deny, Unrestricted = true)]
  77                 private void CallRestricted (MonoTests.System.IO.FileStreamTest fst)
  78                 {
  79                         fst.TestDefaultProperties ();
  80                 }
  81
  82                 [Test]
  83                 [FileIOPermission (SecurityAction.PermitOnly, Unrestricted = true)]
  84                 public void PartialTrust_PermitOnly_FileIOPermission_Success ()
  85                 {
  86                         fst.SetUp ();
  87                         fst.TestCtr ();
  88                         fst.CtorAccess1Read2Read ();
  89                         fst.Write ();
  90                         fst.Length ();
  91                         fst.Flush ();
  92                         fst.TestDefaultProperties ();
  93                         fst.TestLock ();
  94                         fst.Seek ();
  95                         fst.TestSeek ();
  96                         fst.TestClose ();
  97                         fst.PositionAfterSetLength ();
  98                         fst.ReadBytePastEndOfStream ();
  99                         fst.TearDown ();
 100                 }
 101
 102                 [Test]
 103                 [FileIOPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 104                 [SecurityPermission (SecurityAction.PermitOnly, UnmanagedCode = true)]
 105                 public void PartialTrust_PermitOnly_FileIOPermissionUnmanagedCode_Success ()
 106                 {
 107                         fst.SetUp ();
 108                         fst.TestFlushNotOwningHandle ();
 109                         fst.TearDown ();
 110                 }
 111
 112                 // test Demand by denying the required permissions
 113
 114                 [Test]
 115                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 116                 [ExpectedException (typeof (SecurityException))]
 117                 public void Ctor_IntPtrFileAccess ()
 118                 {
 119                         new FileStream (IntPtr.Zero, FileAccess.Read);
 120                 }
 121
 122                 [Test]
 123                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 124                 [ExpectedException (typeof (SecurityException))]
 125                 public void Ctor_IntPtrFileAccessBool ()
 126                 {
 127                         new FileStream (IntPtr.Zero, FileAccess.Read, false);
 128                 }
 129
 130                 [Test]
 131                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 132                 [ExpectedException (typeof (SecurityException))]
 133                 public void Ctor_IntPtrFileAccessBoolInt ()
 134                 {
 135                         new FileStream (IntPtr.Zero, FileAccess.Read, false, 0);
 136                 }
 137
 138                 [Test]
 139                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 140                 [ExpectedException (typeof (SecurityException))]
 141                 public void Ctor_IntPtrFileAccessBoolIntBool ()
 142                 {
 143                         new FileStream (IntPtr.Zero, FileAccess.Read, false, 0, false);
 144                 }
 145
 146                 // we use reflection to call FileStream as the Handle property is protected
 147                 // by a LinkDemand (which will be converted into full demand, i.e. a stack
 148                 // walk) when reflection is used (i.e. it gets testable).
 149
 150                 [Test]
 151                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 152                 [ExpectedException (typeof (SecurityException))]
 153                 public void Handle ()
 154                 {
 155                         FileStream fs = File.OpenWrite (Path.GetTempFileName ());
 156                         try {
 157                                 MethodInfo mi = typeof (FileStream).GetProperty ("Handle").GetGetMethod ();
 158                                 mi.Invoke (fs, null);
 159                         }
 160                         finally {
 161                                 fs.Close ();
 162                         }
 163                 }
 164         }
 165 }