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

   1 //
   2 // TimeZoneTest.cs - NUnit Test Cases for the System.TimeZone struct
   3 //
   4 // Authors:
   5 //      Martin Baulig (martin@gnome.org)
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 //   (C) 2002 Martin Baulig
   9 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
  10 //
  11
  12 using NUnit.Framework;
  13 using System;
  14 using System.IO;
  15 using System.Threading;
  16 using System.Globalization;
  17 using System.Runtime.Serialization.Formatters.Binary;
  18
  19 namespace MonoTests.System {
  20
  21 public class TimeZoneTest : TestCase {
  22
  23         private CultureInfo oldcult;
  24
  25         public TimeZoneTest() {}
  26
  27         protected override void SetUp ()
  28         {
  29                 oldcult = Thread.CurrentThread.CurrentCulture;
  30                 Thread.CurrentThread.CurrentCulture = new CultureInfo ("");
  31         }
  32
  33         protected override void TearDown ()
  34         {
  35                 Thread.CurrentThread.CurrentCulture = oldcult;
  36         }
  37
  38         private void CET (TimeZone t1)
  39         {
  40                 AssertEquals("A01", "CET", t1.StandardName);
  41                 AssertEquals("A02", "CEST", t1.DaylightName);
  42
  43                 DaylightTime d1 = t1.GetDaylightChanges (2002);
  44                 AssertEquals("A03", "03/31/2002 02:00:00", d1.Start.ToString ("G"));
  45                 AssertEquals("A04", "10/27/2002 03:00:00", d1.End.ToString ("G"));
  46                 AssertEquals("A05", 36000000000L, d1.Delta.Ticks);
  47
  48                 DaylightTime d2 = t1.GetDaylightChanges (1996);
  49                 AssertEquals("A06", "03/31/1996 02:00:00", d2.Start.ToString ("G"));
  50                 AssertEquals("A07", "10/27/1996 03:00:00", d2.End.ToString ("G"));
  51                 AssertEquals("A08", 36000000000L, d2.Delta.Ticks);
  52
  53                 DateTime d3 = new DateTime (2002,2,25);
  54                 AssertEquals("A09", false, t1.IsDaylightSavingTime (d3));
  55                 DateTime d4 = new DateTime (2002,4,2);
  56                 AssertEquals("A10", true, t1.IsDaylightSavingTime (d4));
  57                 DateTime d5 = new DateTime (2002,11,4);
  58                 AssertEquals("A11", false, t1.IsDaylightSavingTime (d5));
  59
  60                 AssertEquals("A12", 36000000000L, t1.GetUtcOffset (d3).Ticks);
  61                 AssertEquals("A13", 72000000000L, t1.GetUtcOffset (d4).Ticks);
  62                 AssertEquals("A14", 36000000000L, t1.GetUtcOffset (d5).Ticks);
  63         }
  64
  65         private void EST (TimeZone t1)
  66         {
  67                 // It could be EST though...
  68                 //AssertEquals("B01", "Eastern Standard Time", t1.StandardName);
  69                 //AssertEquals("B02", "Eastern Daylight Time", t1.DaylightName);
  70
  71                 DaylightTime d1 = t1.GetDaylightChanges (2002);
  72                 AssertEquals("B03", "04/07/2002 02:00:00", d1.Start.ToString ("G"));
  73                 AssertEquals("B04", "10/27/2002 02:00:00", d1.End.ToString ("G"));
  74                 AssertEquals("B05", 36000000000L, d1.Delta.Ticks);
  75
  76                 DaylightTime d2 = t1.GetDaylightChanges (1996);
  77                 AssertEquals("B06", "04/07/1996 02:00:00", d2.Start.ToString ("G"));
  78                 AssertEquals("B07", "10/27/1996 02:00:00", d2.End.ToString ("G"));
  79                 AssertEquals("B08", 36000000000L, d2.Delta.Ticks);
  80
  81                 DateTime d3 = new DateTime (2002,2,25);
  82                 AssertEquals("B09", false, t1.IsDaylightSavingTime (d3));
  83                 DateTime d4 = new DateTime (2002,4,8);
  84                 AssertEquals("B10", true, t1.IsDaylightSavingTime (d4));
  85                 DateTime d5 = new DateTime (2002,11,4);
  86                 AssertEquals("B11", false, t1.IsDaylightSavingTime (d5));
  87
  88                 AssertEquals("B12", -180000000000L, t1.GetUtcOffset (d3).Ticks);
  89                 AssertEquals("B13", -144000000000L, t1.GetUtcOffset (d4).Ticks);
  90                 AssertEquals("B14", -180000000000L, t1.GetUtcOffset (d5).Ticks);
  91         }
  92
  93         private void TST (TimeZone t1)
  94         {
  95                 AssertEquals("C01", "Tokyo Standard Time", t1.StandardName);
  96                 AssertEquals("C02", "Tokyo Standard Time", t1.DaylightName);
  97
  98                 DateTime d3 = new DateTime (2002,2,25);
  99                 AssertEquals("C09", false, t1.IsDaylightSavingTime (d3));
 100                 DateTime d4 = new DateTime (2002,4,8);
 101                 AssertEquals("C10", false, t1.IsDaylightSavingTime (d4));
 102                 DateTime d5 = new DateTime (2002,11,4);
 103                 AssertEquals("C11", false, t1.IsDaylightSavingTime (d5));
 104
 105                 AssertEquals("C12", 324000000000L, t1.GetUtcOffset (d3).Ticks);
 106                 AssertEquals("C13", 324000000000L, t1.GetUtcOffset (d4).Ticks);
 107                 AssertEquals("C14", 324000000000L, t1.GetUtcOffset (d5).Ticks);
 108         }
 109
 110         private void GMT (TimeZone t1) {
 111                 // Probably wont work on MS.NET, but is better than nothing. Where do
 112                 // we change our implementation to match theirs?
 113
 114                 AssertEquals("D01", "GMT", t1.StandardName);
 115                 AssertEquals("D02", "BST", t1.DaylightName);
 116
 117                 DaylightTime d1 = t1.GetDaylightChanges (2002);
 118                 AssertEquals("D03", "03/31/2002 01:00:00", d1.Start.ToString ("G"));
 119                 AssertEquals("D04", "10/27/2002 02:00:00", d1.End.ToString ("G"));
 120                 AssertEquals("D05", 36000000000L, d1.Delta.Ticks);
 121
 122                 DaylightTime d2 = t1.GetDaylightChanges (1996);
 123                 AssertEquals("D06", "03/31/1996 01:00:00", d2.Start.ToString ("G"));
 124                 AssertEquals("D07", "10/27/1996 02:00:00", d2.End.ToString ("G"));
 125                 AssertEquals("D08", 36000000000L, d2.Delta.Ticks);
 126
 127                 DateTime d3 = new DateTime (2002,2,25);
 128                 AssertEquals("D09", false, t1.IsDaylightSavingTime (d3));
 129                 DateTime d4 = new DateTime (2002,4,2);
 130                 AssertEquals("D10", true, t1.IsDaylightSavingTime (d4));
 131                 DateTime d5 = new DateTime (2002,11,4);
 132                 AssertEquals("D11", false, t1.IsDaylightSavingTime (d5));
 133
 134                 AssertEquals("D12", 0L, t1.GetUtcOffset (d3).Ticks);
 135                 AssertEquals("D13", 36000000000L, t1.GetUtcOffset (d4).Ticks);
 136                 AssertEquals("D14", 0L, t1.GetUtcOffset (d5).Ticks);
 137         }
 138
 139
 140
 141         public void TestCtors ()
 142         {
 143                 TimeZone t1 = TimeZone.CurrentTimeZone;
 144                 switch (t1.StandardName) {
 145                         case "CET":
 146                                 CET (t1);
 147                                 break;
 148                         case "Eastern Standard Time":
 149                         case "EST":
 150                                 EST (t1);
 151                                 break;
 152                         case "Tokyo Standard Time":
 153                                 TST (t1);
 154                                 break;
 155                         case "GMT":
 156                                 GMT (t1);
 157                                 break;
 158                         default:
 159                                 NUnit.Framework.Assert.Ignore ("Your time zone (" + t1.StandardName + ") isn't defined in the test case");
 160                                 break;
 161                 }
 162         }
 163
 164         [Test]
 165         [Category ("TargetJvmNotWorking")]
 166         public void CurrentTimeZone_SerializationRoundtrip ()
 167         {
 168                 TimeZone tz = TimeZone.CurrentTimeZone;
 169                 BinaryFormatter bf = new BinaryFormatter ();
 170                 MemoryStream ms = new MemoryStream ();
 171                 bf.Serialize (ms, tz);
 172
 173                 ms.Position = 0;
 174                 TimeZone clone = (TimeZone) bf.Deserialize (ms);
 175
 176                 AssertEquals ("DaylightName", tz.DaylightName, clone.DaylightName);
 177                 AssertEquals ("StandardName", tz.StandardName, clone.StandardName);
 178         }
 179
 180         static private byte[] serialized_timezone = {
 181 #if NET_2_0
 182                 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x00,
 183                 0x1C, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x75, 0x72, 0x72, 0x65, 0x6E, 0x74, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x54,
 184                 0x69, 0x6D, 0x65, 0x5A, 0x6F, 0x6E, 0x65, 0x04, 0x00, 0x00, 0x00, 0x17, 0x6D, 0x5F, 0x43, 0x61, 0x63, 0x68, 0x65, 0x64, 0x44, 0x61,
 185                 0x79, 0x6C, 0x69, 0x67, 0x68, 0x74, 0x43, 0x68, 0x61, 0x6E, 0x67, 0x65, 0x73, 0x0D, 0x6D, 0x5F, 0x74, 0x69, 0x63, 0x6B, 0x73, 0x4F,
 186                 0x66, 0x66, 0x73, 0x65, 0x74, 0x0E, 0x6D, 0x5F, 0x73, 0x74, 0x61, 0x6E, 0x64, 0x61, 0x72, 0x64, 0x4E, 0x61, 0x6D, 0x65, 0x0E, 0x6D,
 187                 0x5F, 0x64, 0x61, 0x79, 0x6C, 0x69, 0x67, 0x68, 0x74, 0x4E, 0x61, 0x6D, 0x65, 0x03, 0x00, 0x01, 0x01, 0x1C, 0x53, 0x79, 0x73, 0x74,
 188                 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C, 0x65, 0x63, 0x74, 0x69, 0x6F, 0x6E, 0x73, 0x2E, 0x48, 0x61, 0x73, 0x68, 0x74, 0x61, 0x62,
 189                 0x6C, 0x65, 0x09, 0x09, 0x02, 0x00, 0x00, 0x00, 0x00, 0xF8, 0x29, 0x17, 0xD6, 0xFF, 0xFF, 0xFF, 0x06, 0x03, 0x00, 0x00, 0x00, 0x15,
 190                 0x45, 0x61, 0x73, 0x74, 0x65, 0x72, 0x6E, 0x20, 0x53, 0x74, 0x61, 0x6E, 0x64, 0x61, 0x72, 0x64, 0x20, 0x54, 0x69, 0x6D, 0x65, 0x0A,
 191                 0x04, 0x02, 0x00, 0x00, 0x00, 0x1C, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C, 0x65, 0x63, 0x74, 0x69, 0x6F,
 192                 0x6E, 0x73, 0x2E, 0x48, 0x61, 0x73, 0x68, 0x74, 0x61, 0x62, 0x6C, 0x65, 0x07, 0x00, 0x00, 0x00, 0x0A, 0x4C, 0x6F, 0x61, 0x64, 0x46,
 193                 0x61, 0x63, 0x74, 0x6F, 0x72, 0x07, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x08, 0x43, 0x6F, 0x6D, 0x70, 0x61, 0x72, 0x65, 0x72,
 194                 0x10, 0x48, 0x61, 0x73, 0x68, 0x43, 0x6F, 0x64, 0x65, 0x50, 0x72, 0x6F, 0x76, 0x69, 0x64, 0x65, 0x72, 0x08, 0x48, 0x61, 0x73, 0x68,
 195                 0x53, 0x69, 0x7A, 0x65, 0x04, 0x4B, 0x65, 0x79, 0x73, 0x06, 0x56, 0x61, 0x6C, 0x75, 0x65, 0x73, 0x00, 0x00, 0x03, 0x03, 0x00, 0x05,
 196                 0x05, 0x0B, 0x08, 0x1C, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C, 0x65, 0x63, 0x74, 0x69, 0x6F, 0x6E, 0x73,
 197                 0x2E, 0x49, 0x43, 0x6F, 0x6D, 0x70, 0x61, 0x72, 0x65, 0x72, 0x24, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C,
 198                 0x65, 0x63, 0x74, 0x69, 0x6F, 0x6E, 0x73, 0x2E, 0x49, 0x48, 0x61, 0x73, 0x68, 0x43, 0x6F, 0x64, 0x65, 0x50, 0x72, 0x6F, 0x76, 0x69,
 199                 0x64, 0x65, 0x72, 0x08, 0xEC, 0x51, 0x38, 0x3F, 0x03, 0x00, 0x00, 0x00, 0x0A, 0x0A, 0x0B, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00,
 200                 0x00, 0x09, 0x05, 0x00, 0x00, 0x00, 0x10, 0x04, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x08, 0x08, 0xCC, 0x07, 0x00, 0x00, 0x08,
 201                 0x08, 0xD5, 0x07, 0x00, 0x00, 0x08, 0x08, 0xD2, 0x07, 0x00, 0x00, 0x10, 0x05, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x09, 0x06,
 202                 0x00, 0x00, 0x00, 0x09, 0x07, 0x00, 0x00, 0x00, 0x09, 0x08, 0x00, 0x00, 0x00, 0x04, 0x06, 0x00, 0x00, 0x00, 0x21, 0x53, 0x79, 0x73,
 203                 0x74, 0x65, 0x6D, 0x2E, 0x47, 0x6C, 0x6F, 0x62, 0x61, 0x6C, 0x69, 0x7A, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x2E, 0x44, 0x61, 0x79, 0x6C,
 204                 0x69, 0x67, 0x68, 0x74, 0x54, 0x69, 0x6D, 0x65, 0x03, 0x00, 0x00, 0x00, 0x07, 0x6D, 0x5F, 0x73, 0x74, 0x61, 0x72, 0x74, 0x05, 0x6D,
 205                 0x5F, 0x65, 0x6E, 0x64, 0x07, 0x6D, 0x5F, 0x64, 0x65, 0x6C, 0x74, 0x61, 0x00, 0x00, 0x00, 0x0D, 0x0D, 0x0C, 0x00, 0x10, 0xFA, 0x0F,
 206                 0x3D, 0xF2, 0xBC, 0x88, 0x00, 0x50, 0xD5, 0xB1, 0xC1, 0x91, 0xBD, 0x88, 0x00, 0x68, 0xC4, 0x61, 0x08, 0x00, 0x00, 0x00, 0x01, 0x07,
 207                 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x50, 0x23, 0xFA, 0x07, 0x06, 0xC7, 0x88, 0x00, 0xD0, 0xE2, 0xC4, 0x0C, 0xAB, 0xC7,
 208                 0x88, 0x00, 0x68, 0xC4, 0x61, 0x08, 0x00, 0x00, 0x00, 0x01, 0x08, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x50, 0x0C, 0x0F,
 209                 0xEF, 0xAB, 0xC3, 0x88, 0x00, 0x90, 0xE7, 0xB0, 0x73, 0x4B, 0xC4, 0x88, 0x00, 0x68, 0xC4, 0x61, 0x08, 0x00, 0x00, 0x00, 0x0B
 210 #else
 211                 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x00,
 212                 0x1C, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x75, 0x72, 0x72, 0x65, 0x6E, 0x74, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x54,
 213                 0x69, 0x6D, 0x65, 0x5A, 0x6F, 0x6E, 0x65, 0x04, 0x00, 0x00, 0x00, 0x17, 0x6D, 0x5F, 0x43, 0x61, 0x63, 0x68, 0x65, 0x64, 0x44, 0x61,
 214                 0x79, 0x6C, 0x69, 0x67, 0x68, 0x74, 0x43, 0x68, 0x61, 0x6E, 0x67, 0x65, 0x73, 0x0D, 0x6D, 0x5F, 0x74, 0x69, 0x63, 0x6B, 0x73, 0x4F,
 215                 0x66, 0x66, 0x73, 0x65, 0x74, 0x0E, 0x6D, 0x5F, 0x73, 0x74, 0x61, 0x6E, 0x64, 0x61, 0x72, 0x64, 0x4E, 0x61, 0x6D, 0x65, 0x0E, 0x6D,
 216                 0x5F, 0x64, 0x61, 0x79, 0x6C, 0x69, 0x67, 0x68, 0x74, 0x4E, 0x61, 0x6D, 0x65, 0x03, 0x00, 0x01, 0x01, 0x1C, 0x53, 0x79, 0x73, 0x74,
 217                 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C, 0x65, 0x63, 0x74, 0x69, 0x6F, 0x6E, 0x73, 0x2E, 0x48, 0x61, 0x73, 0x68, 0x74, 0x61, 0x62,
 218                 0x6C, 0x65, 0x09, 0x09, 0x02, 0x00, 0x00, 0x00, 0x00, 0xF8, 0x29, 0x17, 0xD6, 0xFF, 0xFF, 0xFF, 0x06, 0x03, 0x00, 0x00, 0x00, 0x15,
 219                 0x45, 0x61, 0x73, 0x74, 0x65, 0x72, 0x6E, 0x20, 0x53, 0x74, 0x61, 0x6E, 0x64, 0x61, 0x72, 0x64, 0x20, 0x54, 0x69, 0x6D, 0x65, 0x0A,
 220                 0x04, 0x02, 0x00, 0x00, 0x00, 0x1C, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C, 0x65, 0x63, 0x74, 0x69, 0x6F,
 221                 0x6E, 0x73, 0x2E, 0x48, 0x61, 0x73, 0x68, 0x74, 0x61, 0x62, 0x6C, 0x65, 0x07, 0x00, 0x00, 0x00, 0x0A, 0x4C, 0x6F, 0x61, 0x64, 0x46,
 222                 0x61, 0x63, 0x74, 0x6F, 0x72, 0x07, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x08, 0x43, 0x6F, 0x6D, 0x70, 0x61, 0x72, 0x65, 0x72,
 223                 0x10, 0x48, 0x61, 0x73, 0x68, 0x43, 0x6F, 0x64, 0x65, 0x50, 0x72, 0x6F, 0x76, 0x69, 0x64, 0x65, 0x72, 0x08, 0x48, 0x61, 0x73, 0x68,
 224                 0x53, 0x69, 0x7A, 0x65, 0x04, 0x4B, 0x65, 0x79, 0x73, 0x06, 0x56, 0x61, 0x6C, 0x75, 0x65, 0x73, 0x00, 0x00, 0x03, 0x03, 0x00, 0x05,
 225                 0x05, 0x0B, 0x08, 0x1C, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C, 0x65, 0x63, 0x74, 0x69, 0x6F, 0x6E, 0x73,
 226                 0x2E, 0x49, 0x43, 0x6F, 0x6D, 0x70, 0x61, 0x72, 0x65, 0x72, 0x24, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x43, 0x6F, 0x6C, 0x6C,
 227                 0x65, 0x63, 0x74, 0x69, 0x6F, 0x6E, 0x73, 0x2E, 0x49, 0x48, 0x61, 0x73, 0x68, 0x43, 0x6F, 0x64, 0x65, 0x50, 0x72, 0x6F, 0x76, 0x69,
 228                 0x64, 0x65, 0x72, 0x08, 0xEC, 0x51, 0x38, 0x3F, 0x02, 0x00, 0x00, 0x00, 0x0A, 0x0A, 0x0B, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00,
 229                 0x00, 0x09, 0x05, 0x00, 0x00, 0x00, 0x10, 0x04, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x08, 0x08, 0xCC, 0x07, 0x00, 0x00, 0x08,
 230                 0x08, 0xD2, 0x07, 0x00, 0x00, 0x10, 0x05, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x09, 0x06, 0x00, 0x00, 0x00, 0x09, 0x07, 0x00,
 231                 0x00, 0x00, 0x04, 0x06, 0x00, 0x00, 0x00, 0x21, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6D, 0x2E, 0x47, 0x6C, 0x6F, 0x62, 0x61, 0x6C, 0x69,
 232                 0x7A, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x2E, 0x44, 0x61, 0x79, 0x6C, 0x69, 0x67, 0x68, 0x74, 0x54, 0x69, 0x6D, 0x65, 0x03, 0x00, 0x00,
 233                 0x00, 0x07, 0x6D, 0x5F, 0x73, 0x74, 0x61, 0x72, 0x74, 0x05, 0x6D, 0x5F, 0x65, 0x6E, 0x64, 0x07, 0x6D, 0x5F, 0x64, 0x65, 0x6C, 0x74,
 234                 0x61, 0x00, 0x00, 0x00, 0x0D, 0x0D, 0x0C, 0x00, 0x10, 0xFA, 0x0F, 0x3D, 0xF2, 0xBC, 0x08, 0x00, 0x50, 0xD5, 0xB1, 0xC1, 0x91, 0xBD,
 235                 0x08, 0x00, 0x68, 0xC4, 0x61, 0x08, 0x00, 0x00, 0x00, 0x01, 0x07, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x50, 0x0C, 0x0F,
 236                 0xEF, 0xAB, 0xC3, 0x08, 0x00, 0x90, 0xE7, 0xB0, 0x73, 0x4B, 0xC4, 0x08, 0x00, 0x68, 0xC4, 0x61, 0x08, 0x00, 0x00, 0x00, 0x0B
 237 #endif
 238         };
 239
 240         [Test]
 241         [Category ("NotWorking")]
 242         // 1.x - deserialize but strings are null
 243         // 2.x - eexception when creating a datetime with a negative value
 244         public void DeserializeKnownValue ()
 245         {
 246                 MemoryStream ms = new MemoryStream (serialized_timezone);
 247                 BinaryFormatter bf = new BinaryFormatter ();
 248                 TimeZone tz = (TimeZone) bf.Deserialize (ms);
 249                 AssertEquals ("DaylightName", "Eastern Daylight Time", tz.DaylightName);
 250                 AssertEquals ("StandardName", "Eastern Standard Time", tz.StandardName);
 251         }
 252 }
 253
 254 }