mcs/class/corlib/Test/System/IntPtrTest.cs

   1 //
   2 // System.IntPtrTest.cs - Unit test for IntPtr
   3 //
   4 // Author
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2004 Novell (http://www.novell.com)
   8 //
   9
  10 using System;
  11 using NUnit.Framework;
  12
  13 namespace MonoTests.System  {
  14
  15         [TestFixture]
  16         public class IntPtrTest  {
  17
  18                 // The corresponding fix was reverted (r136567)
  19                 [Test]
  20                 [Category ("NotWorking")]
  21                 [ExpectedException (typeof (OverflowException))]
  22                 public void Test64on32 ()
  23                 {
  24                         if (IntPtr.Size > 4)
  25                                 throw new OverflowException ("Test only applicable to 32bits machines");
  26
  27                         long addr = Int32.MaxValue;
  28                         IntPtr p = new IntPtr (addr + 1);
  29                 }
  30
  31                 [Test]
  32                 public void TestLongOn32 ()
  33                 {
  34                         // int64 can be used (as a type) with a 32bits address
  35                         long max32 = Int32.MaxValue;
  36                         IntPtr p32max = new IntPtr (max32);
  37
  38                         long min32 = Int32.MinValue;
  39                         IntPtr p32min = new IntPtr (min32);
  40                 }
  41
  42                 [Test]
  43                 public void Test64on64 ()
  44                 {
  45                         // for 64 bits machines
  46                         if (IntPtr.Size > 4) {
  47                                 IntPtr pmax = new IntPtr (Int64.MaxValue);
  48                                 Assert.AreEqual (Int64.MaxValue, (long) pmax, "Max");
  49
  50                                 IntPtr pmin = new IntPtr (Int64.MinValue);
  51                                 Assert.AreEqual (Int64.MinValue, (long) pmin, "Min");
  52                         }
  53                 }
  54
  55                 [Test]
  56                 public void ToStringWithFormat ()
  57                 {
  58                         Assert.AreEqual ("0", IntPtr.Zero.ToString ("x"), "#1");
  59                         Assert.AreEqual ("3b9aca00", new IntPtr (1000000000).ToString ("x"), "#2");
  60                 }
  61         }
  62 }