mcs/class/corlib/Test/System.Text/DecoderTest.cs

   1 //
   2 // DecoderTest.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto  <atsushi@ximian.com>
   6 //
   7 // (C) 2006 Novell, Inc.
   8 //
   9 using NUnit.Framework;
  10 using System;
  11 using System.Text;
  12
  13 namespace MonoTests.System.Text
  14 {
  15         [TestFixture]
  16         public class DecoderTest
  17         {
  18 #if NET_2_0
  19                 [Test]
  20                 [ExpectedException (typeof (ArgumentNullException))]
  21                 public void ConvertNullChars ()
  22                 {
  23                         int charsUsed, bytesUsed;
  24                         bool done;
  25                         Encoding.UTF8.GetDecoder ().Convert (
  26                                 null, 0, 100, new char [100], 0, 100, false,
  27                                 out charsUsed, out bytesUsed, out done);
  28                 }
  29
  30                 [Test]
  31                 [ExpectedException (typeof (ArgumentNullException))]
  32                 public void ConvertNullBytes ()
  33                 {
  34                         int charsUsed, bytesUsed;
  35                         bool done;
  36                         Encoding.UTF8.GetDecoder ().Convert (
  37                                 new byte [100], 0, 100, null, 0, 100, false,
  38                                 out charsUsed, out bytesUsed, out done);
  39                 }
  40
  41                 [Test]
  42                 public void ConvertLimitedDestination ()
  43                 {
  44                         char [] chars = new char [10000];
  45                         byte [] bytes = new byte [10000];
  46
  47                         Decoder conv = Encoding.UTF8.GetDecoder ();
  48                         int charsUsed, bytesUsed;
  49                         bool done;
  50
  51                         conv.Convert (bytes, 0, 10000, chars, 0, 1000, true,
  52                                       out charsUsed, out bytesUsed, out done);
  53
  54                         Assert.IsFalse (done, "#1");
  55                         Assert.AreEqual (625, charsUsed, "#2");
  56                         Assert.AreEqual (625, bytesUsed, "#3");
  57                 }
  58
  59
  60                 [Test]
  61                 public void CustomEncodingGetDecoder ()
  62                 {
  63                         var encoding = new CustomEncoding ();
  64                         var decoder = encoding.GetDecoder ();
  65                         Assert.IsNotNull (decoder);
  66                 }
  67
  68                 class CustomEncoding : Encoding {
  69
  70                         public override int GetByteCount (char [] chars, int index, int count)
  71                         {
  72                                 throw new NotSupportedException ();
  73                         }
  74
  75                         public override int GetBytes (char [] chars, int charIndex, int charCount, byte [] bytes, int byteIndex)
  76                         {
  77                                 throw new NotSupportedException ();
  78                         }
  79
  80                         public override int GetCharCount (byte [] bytes, int index, int count)
  81                         {
  82                                 throw new NotSupportedException ();
  83                         }
  84
  85                         public override int GetChars (byte [] bytes, int byteIndex, int byteCount, char [] chars, int charIndex)
  86                         {
  87                                 throw new NotSupportedException ();
  88                         }
  89
  90                         public override int GetMaxByteCount (int charCount)
  91                         {
  92                                 throw new NotSupportedException ();
  93                         }
  94
  95                         public override int GetMaxCharCount (int byteCount)
  96                         {
  97                                 throw new NotSupportedException ();
  98                         }
  99                 }
 100 #endif
 101
 102                 [Test]
 103                 public void Bug10789 ()
 104                 {
 105                         byte[] bytes = new byte[100];
 106                         char[] chars = new char[100];
 107
 108                         Decoder conv = Encoding.UTF8.GetDecoder ();
 109                         int charsUsed, bytesUsed;
 110                         bool completed;
 111
 112                         conv.Convert (bytes, 0, 0, chars, 100, 0, false, out bytesUsed, out charsUsed, out completed);
 113
 114                         Assert.IsTrue (completed, "#1");
 115                         Assert.AreEqual (0, charsUsed, "#2");
 116                         Assert.AreEqual (0, bytesUsed, "#3");
 117                 }
 118         }
 119 }