mcs/class/System.Drawing/Test/System.Drawing/GraphicsCas.cs

   1 //
   2 // GraphicsCas.cs - CAS unit tests for System.Drawing.Graphics
   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.Drawing;
  33 using System.Reflection;
  34 using System.Security;
  35 using System.Security.Permissions;
  36 using System.Security.Policy;
  37
  38 namespace MonoCasTests.System.Drawing {
  39
  40         [TestFixture]
  41         [Category ("CAS")]
  42         public class GraphicsCas {
  43
  44                 private MethodInfo fromHdcInternal;
  45                 private MethodInfo fromHwndInternal;
  46                 private MethodInfo releaseHdcInternal;
  47                 private Bitmap bitmap;
  48
  49                 [TestFixtureSetUp]
  50                 public void FixtureSetUp ()
  51                 {
  52                         // this executes at fulltrust
  53                         fromHdcInternal = typeof (Graphics).GetMethod ("FromHdcInternal");
  54                         fromHwndInternal = typeof (Graphics).GetMethod ("FromHwndInternal");
  55                         releaseHdcInternal = typeof (Graphics).GetMethod ("ReleaseHdcInternal");
  56                         bitmap = new Bitmap (10, 10);
  57                 }
  58
  59                 [SetUp]
  60                 public void SetUp ()
  61                 {
  62                         if (!SecurityManager.SecurityEnabled)
  63                                 Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
  64                 }
  65
  66                 private Graphics GetGraphics ()
  67                 {
  68                         return Graphics.FromImage (bitmap);
  69                 }
  70
  71                 [Test]
  72                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
  73                 public void FromHdcInternal ()
  74                 {
  75                         try {
  76                                 Graphics.FromHdcInternal (IntPtr.Zero);
  77                         }
  78                         catch (SecurityException) {
  79                                 Assert.Fail ("SecurityException");
  80                         }
  81                         catch (Exception) {
  82                         }
  83                 }
  84
  85                 [Test]
  86                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
  87                 [Category ("NotWorking")]
  88                 public void FromHwndInternal ()
  89                 {
  90                         try {
  91                                 Graphics.FromHwndInternal (IntPtr.Zero);
  92                         }
  93                         catch (SecurityException) {
  94                                 Assert.Fail ("SecurityException");
  95                         }
  96                         catch (Exception) {
  97                         }
  98                 }
  99
 100                 [Test]
 101                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 102                 public void ReleaseHdcInternal ()
 103                 {
 104                         try {
 105                                 Graphics g = GetGraphics ();
 106                                 g.ReleaseHdcInternal (IntPtr.Zero);
 107                         }
 108                         catch (SecurityException) {
 109                                 Assert.Fail ("SecurityException");
 110                         }
 111                         catch (Exception) {
 112                         }
 113                 }
 114
 115                 // we use reflection to call Graphics as it's *Internal methods are
 116                 // protected by a LinkDemand (which will be converted into full demand,
 117                 // i.e. a stack walk) when reflection is used (i.e. it gets testable).
 118
 119                 [Test]
 120                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 121                 [ExpectedException (typeof (SecurityException))]
 122                 public void FromHdcInternal_LinkDemand ()
 123                 {
 124                         // requires FullTrust, so denying anything break the requirements
 125                         Assert.IsNotNull (fromHdcInternal, "FromHdcInternal");
 126                         fromHdcInternal.Invoke (null, new object[1] { IntPtr.Zero });
 127                 }
 128
 129                 [Test]
 130                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 131                 [ExpectedException (typeof (SecurityException))]
 132                 public void FromHwndInternal_LinkDemand ()
 133                 {
 134                         // requires FullTrust, so denying anything break the requirements
 135                         Assert.IsNotNull (fromHwndInternal, "FromHwndInternal");
 136                         fromHwndInternal.Invoke (null, new object[1] { IntPtr.Zero });
 137                 }
 138
 139                 [Test]
 140                 [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
 141                 [ExpectedException (typeof (SecurityException))]
 142                 public void ReleaseHdcInternal_LinkDemand ()
 143                 {
 144                         // requires FullTrust, so denying anything break the requirements
 145                         Assert.IsNotNull (releaseHdcInternal, "ReleaseHdcInternal");
 146                         Graphics g = GetGraphics ();
 147                         releaseHdcInternal.Invoke (g, new object[1] { IntPtr.Zero });
 148                 }
 149         }
 150 }