mcs/class/corlib/Test/System.Text/UTF32EncodingTest.cs

   1 using NUnit.Framework;
   2 using System;
   3 using System.Text;
   4
   5 #if NET_2_0
   6
   7 namespace MonoTests.System.Text {
   8
   9         [TestFixture]
  10         public class UTF32EncodingTest : Assertion {
  11
  12                 [Test]
  13                 public void TestGetPreamble() {
  14                         byte[] lePreamble = new UTF32Encoding(false, true).GetPreamble();
  15                         if (!AreEqual(lePreamble, new byte[]{ 0xff, 0xfe, 0, 0 })) {
  16                                 Fail ("Little-endian UTF32 preamble is incorrect");
  17                         }
  18
  19                         byte[] bePreamble = new UTF32Encoding(true, true).GetPreamble();
  20                         if (!AreEqual(bePreamble, new byte[]{ 0, 0, 0xfe, 0xff })) {
  21                                 Fail ("Big-endian UTF32 preamble is incorrect");
  22                         }
  23                 }
  24
  25                 private bool AreEqual(byte[] a, byte[] b) {
  26                         if (a.Length != b.Length)
  27                                 return false;
  28                         for (int i = 0; i < a.Length; ++i) {
  29                                 if (a[i] != b[i])
  30                                         return false;
  31                         }
  32                         return true;
  33                 }
  34         }
  35 }
  36
  37 #endif
  38