mcs/class/System.Core/Test/System/TimeZoneInfoTest.cs

   1 /*
   2  * TimeZoneInfo.Tests
   3  *
   4  * Author(s)
   5  *      Stephane Delcroix <stephane@delcroix.org>
   6  *
   7  * Copyright 2011 Xamarin Inc.
   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 System;
  30 using System.IO;
  31 using System.Runtime.Serialization.Formatters.Binary;
  32 using System.Collections;
  33
  34 using NUnit.Framework;
  35 #if NET_2_0
  36 namespace MonoTests.System
  37 {
  38         public class TimeZoneInfoTest
  39         {
  40                 [TestFixture]
  41                 public class PropertiesTests
  42                 {
  43                         [Test]
  44                         public void GetLocal ()
  45                         {
  46                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
  47                                         return;
  48                                 TimeZoneInfo local = TimeZoneInfo.Local;
  49                                 Assert.IsNotNull (local);
  50                                 Assert.IsTrue (true);
  51                         }
  52                 }
  53
  54                 [TestFixture]
  55                 public class CreateCustomTimezoneTests
  56                 {
  57                         [Test]
  58                         [ExpectedException (typeof (ArgumentNullException))]
  59                         public void IdIsNullException ()
  60                         {
  61                                 TimeZoneInfo.CreateCustomTimeZone (null, new TimeSpan (0), null, null);
  62                         }
  63
  64                         [Test]
  65                         [ExpectedException (typeof (ArgumentException))]
  66                         public void IdIsEmptyString ()
  67                         {
  68                                 TimeZoneInfo.CreateCustomTimeZone ("", new TimeSpan (0), null, null);
  69                         }
  70
  71                         [Test]
  72                         [ExpectedException (typeof (ArgumentException))]
  73                         public void OffsetIsNotMinutes ()
  74                         {
  75                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (0, 0, 55), null, null);
  76                         }
  77
  78                         [Test]
  79                         [ExpectedException (typeof (ArgumentOutOfRangeException))]
  80                         public void OffsetTooBig ()
  81                         {
  82                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (14, 1, 0), null, null);
  83                         }
  84
  85                         [Test]
  86                         [ExpectedException (typeof (ArgumentOutOfRangeException))]
  87                         public void OffsetTooSmall ()
  88                         {
  89                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", - new TimeSpan (14, 1, 0), null, null);
  90                         }
  91
  92                 #if STRICT
  93                         [Test]
  94                         [ExpectedException (typeof (ArgumentException))]
  95                         public void IdLongerThan32 ()
  96                         {
  97                                 TimeZoneInfo.CreateCustomTimeZone ("12345678901234567890123456789012345", new TimeSpan (0), null, null);
  98                         }
  99                 #endif
 100
 101                         [Test]
 102                         [ExpectedException (typeof (InvalidTimeZoneException))]
 103                         public void AdjustmentRulesOverlap ()
 104                         {
 105                                 TimeZoneInfo.TransitionTime s1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 3, 2, DayOfWeek.Sunday);
 106                                 TimeZoneInfo.TransitionTime e1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 10, 2, DayOfWeek.Sunday);
 107                                 TimeZoneInfo.AdjustmentRule r1 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2000,1,1), new DateTime (2005,1,1), new TimeSpan (1,0,0), s1, e1);
 108                                 TimeZoneInfo.TransitionTime s2 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 2, 2, DayOfWeek.Sunday);
 109                                 TimeZoneInfo.TransitionTime e2 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 11, 2, DayOfWeek.Sunday);
 110                                 TimeZoneInfo.AdjustmentRule r2 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2004,1,1), new DateTime (2007,1,1), new TimeSpan (1,0,0), s2, e2);
 111                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {r1, r2});
 112                         }
 113
 114                         [Test]
 115                         [ExpectedException (typeof (InvalidTimeZoneException))]
 116                         public void RulesNotOrdered ()
 117                         {
 118                                 TimeZoneInfo.TransitionTime s1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 3, 2, DayOfWeek.Sunday);
 119                                 TimeZoneInfo.TransitionTime e1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 10, 2, DayOfWeek.Sunday);
 120                                 TimeZoneInfo.AdjustmentRule r1 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2000,1,1), new DateTime (2005,1,1), new TimeSpan (1,0,0), s1, e1);
 121                                 TimeZoneInfo.TransitionTime s2 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 2, 2, DayOfWeek.Sunday);
 122                                 TimeZoneInfo.TransitionTime e2 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 11, 2, DayOfWeek.Sunday);
 123                                 TimeZoneInfo.AdjustmentRule r2 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2006,1,1), new DateTime (2007,1,1), new TimeSpan (1,0,0), s2, e2);
 124                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {r2, r1});
 125                         }
 126
 127                         [Test]
 128                         [ExpectedException (typeof (InvalidTimeZoneException))]
 129                         public void OffsetOutOfRange ()
 130                         {
 131                                 TimeZoneInfo.TransitionTime startTransition = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 3, 2, DayOfWeek.Sunday);
 132                                 TimeZoneInfo.TransitionTime endTransition = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 10, 2, DayOfWeek.Sunday);
 133                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2000,1,1), new DateTime (2005,1,1), new TimeSpan (3,0,0), startTransition, endTransition);
 134                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (12,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {rule});
 135                         }
 136
 137                         [Test]
 138                         [ExpectedException (typeof (InvalidTimeZoneException))]
 139                         public void NullRule ()
 140                         {
 141                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (12,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {null});
 142                         }
 143
 144                         [Test]
 145                         [ExpectedException (typeof (InvalidTimeZoneException))]
 146                         public void MultiplesRulesForDate ()
 147                         {
 148                                 TimeZoneInfo.TransitionTime s1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 3, 2, DayOfWeek.Sunday);
 149                                 TimeZoneInfo.TransitionTime e1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 10, 2, DayOfWeek.Sunday);
 150                                 TimeZoneInfo.AdjustmentRule r1 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2000,1,1), new DateTime (2005,1,1), new TimeSpan (1,0,0), s1, e1);
 151                                 TimeZoneInfo.TransitionTime s2 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 2, 2, DayOfWeek.Sunday);
 152                                 TimeZoneInfo.TransitionTime e2 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 11, 2, DayOfWeek.Sunday);
 153                                 TimeZoneInfo.AdjustmentRule r2 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2005,1,1), new DateTime (2007,1,1), new TimeSpan (1,0,0), s2, e2);
 154                                 TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {r1, r2});
 155                         }
 156
 157                         [Test]
 158                         public void SupportsDaylightSavingTime_NonEmptyAdjustmentRule ()
 159                         {
 160                                 TimeZoneInfo.TransitionTime s1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 3, 2, DayOfWeek.Sunday);
 161                                 TimeZoneInfo.TransitionTime e1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 10, 2, DayOfWeek.Sunday);
 162                                 TimeZoneInfo.AdjustmentRule r1 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2000,1,1), new DateTime (2005,1,1), new TimeSpan (1,0,0), s1, e1);
 163                                 TimeZoneInfo tz = TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {r1});
 164                                 Assert.IsTrue (tz.SupportsDaylightSavingTime);
 165                         }
 166
 167                         [Test]
 168                         public void SupportsDaylightSavingTime_EmptyAdjustmentRule ()
 169                         {
 170                                 TimeZoneInfo tz = TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,null);
 171                                 Assert.IsFalse (tz.SupportsDaylightSavingTime);
 172                         }
 173
 174                         [Test]
 175                         public void SupportsDaylightSavingTime_NonEmptyAdjustmentRule_DisableDaylightSavingTime ()
 176                         {
 177                                 TimeZoneInfo.TransitionTime s1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 3, 2, DayOfWeek.Sunday);
 178                                 TimeZoneInfo.TransitionTime e1 = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,4,0,0), 10, 2, DayOfWeek.Sunday);
 179                                 TimeZoneInfo.AdjustmentRule r1 = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (new DateTime (2000,1,1), new DateTime (2005,1,1), new TimeSpan (1,0,0), s1, e1);
 180                                 TimeZoneInfo tz = TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,new TimeZoneInfo.AdjustmentRule[] {r1}, true);
 181                                 Assert.IsFalse (tz.SupportsDaylightSavingTime);
 182                         }
 183
 184                         [Test]
 185                         public void SupportsDaylightSavingTime_EmptyAdjustmentRule_DisableDaylightSavingTime ()
 186                         {
 187                                 TimeZoneInfo tz = TimeZoneInfo.CreateCustomTimeZone ("mytimezone", new TimeSpan (6,0,0),null,null,null,null,true);
 188                                 Assert.IsFalse (tz.SupportsDaylightSavingTime);
 189                         }
 190                 }
 191
 192                 [TestFixture]
 193                 public class IsDaylightSavingTimeTests
 194                 {
 195                         TimeZoneInfo london;
 196
 197                         [SetUp]
 198                         public void CreateTimeZones ()
 199                         {
 200                                 TimeZoneInfo.TransitionTime start = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,1,0,0), 3, 5, DayOfWeek.Sunday);
 201                                 TimeZoneInfo.TransitionTime end = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,2,0,0), 10, 5, DayOfWeek.Sunday);
 202                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (DateTime.MinValue.Date, DateTime.MaxValue.Date, new TimeSpan (1,0,0), start, end);
 203                                 london = TimeZoneInfo.CreateCustomTimeZone ("Europe/London", new TimeSpan (0), "Europe/London", "British Standard Time", "British Summer Time", new TimeZoneInfo.AdjustmentRule [] {rule});
 204                         }
 205
 206                         [Test]
 207                         public void NoDSTInUTC ()
 208                         {
 209                                 DateTime june01 = new DateTime (2007, 06, 01);
 210                                 Assert.IsFalse (TimeZoneInfo.Utc.IsDaylightSavingTime (june01));
 211                         }
 212
 213                         [Test]
 214                         public void DSTInLondon ()
 215                         {
 216                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 217                                         return;
 218                                 DateTime june01 = new DateTime (2007, 06, 01);
 219                                 DateTime xmas = new DateTime (2007, 12, 25);
 220                                 Assert.IsTrue (london.IsDaylightSavingTime (june01), "June 01 is DST in London");
 221                                 Assert.IsFalse (london.IsDaylightSavingTime (xmas), "Xmas is not DST in London");
 222                         }
 223
 224                         [Test]
 225                         public void DSTTransisions ()
 226                         {
 227                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 228                                         return;
 229                                 DateTime beforeDST = new DateTime (2007, 03, 25, 0, 59, 59, DateTimeKind.Unspecified);
 230                                 DateTime startDST = new DateTime (2007, 03, 25, 2, 0, 0, DateTimeKind.Unspecified);
 231                                 DateTime endDST = new DateTime (2007, 10, 28, 1, 59, 59, DateTimeKind.Unspecified);
 232                                 DateTime afterDST = new DateTime (2007, 10, 28, 2, 0, 0, DateTimeKind.Unspecified);
 233                                 Assert.IsFalse (london.IsDaylightSavingTime (beforeDST), "Just before DST");
 234                                 Assert.IsTrue (london.IsDaylightSavingTime (startDST), "the first seconds of DST");
 235                                 Assert.IsTrue (london.IsDaylightSavingTime (endDST), "The last seconds of DST");
 236                                 Assert.IsFalse (london.IsDaylightSavingTime (afterDST), "Just after DST");
 237                         }
 238
 239                         [Test]
 240                         public void DSTTransisionsUTC ()
 241                         {
 242                                 DateTime beforeDST = new DateTime (2007, 03, 25, 0, 59, 59, DateTimeKind.Utc);
 243                                 DateTime startDST = new DateTime (2007, 03, 25, 1, 0, 0, DateTimeKind.Utc);
 244                                 DateTime endDST = new DateTime (2007, 10, 28, 0, 59, 59, DateTimeKind.Utc);
 245                                 DateTime afterDST = new DateTime (2007, 10, 28, 1, 0, 0, DateTimeKind.Utc);
 246                                 Assert.IsFalse (london.IsDaylightSavingTime (beforeDST), "Just before DST");
 247                                 Assert.IsTrue (london.IsDaylightSavingTime (startDST), "the first seconds of DST");
 248                                 Assert.IsTrue (london.IsDaylightSavingTime (endDST), "The last seconds of DST");
 249                                 Assert.IsFalse (london.IsDaylightSavingTime (afterDST), "Just after DST");
 250                         }
 251
 252                 #if SLOW_TESTS
 253                         [Test]
 254                         public void MatchTimeZoneBehavior ()
 255                         {
 256                                 TimeZone tzone = TimeZone.CurrentTimeZone;
 257                                 TimeZoneInfo local = TimeZoneInfo.Local;
 258                                 for (DateTime date = new DateTime (2007, 01, 01, 0, 0, 0, DateTimeKind.Local); date < new DateTime (2007, 12, 31, 23, 59, 59); date += new TimeSpan (0,1,0)) {
 259                                         date = DateTime.SpecifyKind (date, DateTimeKind.Local);
 260                                         if (local.IsInvalidTime (date))
 261                                                 continue;
 262                                         Assert.IsTrue (tzone.IsDaylightSavingTime (date) == local.IsDaylightSavingTime (date));
 263                                 }
 264                         }
 265                 #endif
 266                 }
 267
 268                 [TestFixture]
 269                 public class ConvertTimeTests
 270                 {
 271                         TimeZoneInfo london;
 272
 273                         [SetUp]
 274                         public void CreateTimeZones ()
 275                         {
 276                                 TimeZoneInfo.TransitionTime start = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,1,0,0), 3, 5, DayOfWeek.Sunday);
 277                                 TimeZoneInfo.TransitionTime end = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,2,0,0), 10, 5, DayOfWeek.Sunday);
 278                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (DateTime.MinValue.Date, DateTime.MaxValue.Date, new TimeSpan (1,0,0), start, end);
 279                                 london = TimeZoneInfo.CreateCustomTimeZone ("Europe/London", new TimeSpan (0), "Europe/London", "British Standard Time", "British Summer Time", new TimeZoneInfo.AdjustmentRule [] {rule});
 280                         }
 281
 282                         [Test]
 283                         [ExpectedException (typeof (ArgumentException))]
 284                         public void ConvertFromUtc_KindIsLocalException ()
 285                         {
 286                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 287                                         throw new ArgumentException ();
 288                                 TimeZoneInfo.ConvertTimeFromUtc (new DateTime (2007, 5, 3, 11, 8, 0, DateTimeKind.Local), TimeZoneInfo.Local);
 289                         }
 290
 291                         [Test]
 292                         [ExpectedException (typeof (ArgumentNullException))]
 293                         public void ConvertFromUtc_DestinationTimeZoneIsNullException ()
 294                         {
 295                                 TimeZoneInfo.ConvertTimeFromUtc (new DateTime (2007, 5, 3, 11, 8, 0), null);
 296                         }
 297
 298                         [Test]
 299                         public void ConvertFromUtc_DestinationIsUTC ()
 300                         {
 301                                 DateTime now = DateTime.UtcNow;
 302                                 DateTime converted = TimeZoneInfo.ConvertTimeFromUtc (now, TimeZoneInfo.Utc);
 303                                 Assert.AreEqual (now, converted);
 304                         }
 305
 306                         [Test]
 307                         public void ConvertFromUTC_ConvertInWinter ()
 308                         {
 309                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 310                                         return;
 311                                 DateTime utc = new DateTime (2007, 12, 25, 12, 0, 0);
 312                                 DateTime converted = TimeZoneInfo.ConvertTimeFromUtc (utc, london);
 313                                 Assert.AreEqual (utc, converted);
 314                         }
 315
 316                         [Test]
 317                         public void ConvertFromUtc_ConvertInSummer ()
 318                         {
 319                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 320                                         return;
 321                                 DateTime utc = new DateTime (2007, 06, 01, 12, 0, 0);
 322                                 DateTime converted = TimeZoneInfo.ConvertTimeFromUtc (utc, london);
 323                                 Assert.AreEqual (utc + new TimeSpan (1,0,0), converted);
 324                         }
 325
 326                         [Test]
 327                         public void ConvertToUTC_KindIsUtc ()
 328                         {
 329                                 DateTime now = DateTime.UtcNow;
 330                                 Assert.AreEqual (now.Kind, DateTimeKind.Utc);
 331                                 DateTime converted = TimeZoneInfo.ConvertTimeToUtc (now);
 332                                 Assert.AreEqual (now, converted);
 333                         }
 334
 335                         [Test]
 336                         [ExpectedException (typeof (ArgumentException))]
 337                         public void ConvertToUTC_KindIsUTCButSourceIsNot ()
 338                         {
 339                                 TimeZoneInfo.ConvertTimeToUtc (new DateTime (2007, 5, 3, 12, 8, 0, DateTimeKind.Utc), london);
 340                         }
 341
 342                         [Test]
 343                         [ExpectedException (typeof (ArgumentException))]
 344                         public void ConvertToUTC_KindIsLocalButSourceIsNot ()
 345                         {
 346                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 347                                         throw new ArgumentException ();
 348                                 TimeZoneInfo.ConvertTimeToUtc (new DateTime (2007, 5, 3, 12, 8, 0, DateTimeKind.Local), london);
 349                         }
 350
 351                         [Test]
 352                         [ExpectedException (typeof (ArgumentException))]
 353                         public void ConvertToUTC_InvalidDate ()
 354                         {
 355                                 TimeZoneInfo.ConvertTimeToUtc (new DateTime (2007, 3, 25, 1, 30, 0), london);
 356                         }
 357
 358                         [Test]
 359                         [ExpectedException (typeof (ArgumentNullException))]
 360                         public void ConvertToUTC_SourceIsNull ()
 361                         {
 362                                 TimeZoneInfo.ConvertTimeToUtc (new DateTime (2007, 5, 3, 12, 16, 0), null);
 363                         }
 364
 365                 #if SLOW_TESTS
 366                         [Test]
 367                         public void ConvertToUtc_MatchDateTimeBehavior ()
 368                         {
 369                                 for (DateTime date = new DateTime (2007, 01, 01, 0, 0, 0); date < new DateTime (2007, 12, 31, 23, 59, 59); date += new TimeSpan (0,1,0)) {
 370                                         Assert.AreEqual (TimeZoneInfo.ConvertTimeToUtc (date), date.ToUniversalTime ());
 371                                 }
 372                         }
 373                 #endif
 374
 375                         [Test]
 376                         public void ConvertFromToUtc ()
 377                         {
 378                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 379                                         return;
 380                                 DateTime utc = DateTime.UtcNow;
 381                                 Assert.AreEqual (utc.Kind, DateTimeKind.Utc);
 382                                 DateTime converted = TimeZoneInfo.ConvertTimeFromUtc (utc, london);
 383                                 Assert.AreEqual (converted.Kind, DateTimeKind.Unspecified);
 384                                 DateTime back = TimeZoneInfo.ConvertTimeToUtc (converted, london);
 385                                 Assert.AreEqual (back.Kind, DateTimeKind.Utc);
 386                                 Assert.AreEqual (utc, back);
 387
 388                         }
 389
 390                         [Test]
 391                         public void ConvertToTimeZone ()
 392                         {
 393                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 394                                         return;
 395
 396                                 TimeZoneInfo.ConvertTime (DateTime.Now, TimeZoneInfo.FindSystemTimeZoneById("Pacific/Auckland"));
 397                         }
 398                 }
 399
 400                 [TestFixture]
 401                 public class IsInvalidTimeTests
 402                 {
 403                         TimeZoneInfo london;
 404
 405                         [SetUp]
 406                         public void CreateTimeZones ()
 407                         {
 408                                 TimeZoneInfo.TransitionTime start = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,1,0,0), 3, 5, DayOfWeek.Sunday);
 409                                 TimeZoneInfo.TransitionTime end = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,2,0,0), 10, 5, DayOfWeek.Sunday);
 410                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (DateTime.MinValue.Date, DateTime.MaxValue.Date, new TimeSpan (1,0,0), start, end);
 411                                 london = TimeZoneInfo.CreateCustomTimeZone ("Europe/London", new TimeSpan (0), "Europe/London", "British Standard Time", "British Summer Time", new TimeZoneInfo.AdjustmentRule [] {rule});
 412                         }
 413
 414                 #if SLOW_TESTS
 415                         [Test]
 416                         public void UTCDate ()
 417                         {
 418                                 for (DateTime date = new DateTime (2007, 01, 01, 0, 0, 0); date < new DateTime (2007, 12, 31, 23, 59, 59); date += new TimeSpan (0,1,0)) {
 419                                         date = DateTime.SpecifyKind (date, DateTimeKind.Utc);
 420                                         Assert.IsFalse (london.IsInvalidTime (date));
 421                                 }
 422                         }
 423                 #endif
 424                         [Test]
 425                         public void InvalidDates ()
 426                         {
 427                                 Assert.IsFalse (london.IsInvalidTime (new DateTime (2007, 03, 25, 0, 59, 59)));
 428                                 Assert.IsTrue (london.IsInvalidTime (new DateTime (2007, 03, 25, 1, 0, 0)));
 429                                 Assert.IsTrue (london.IsInvalidTime (new DateTime (2007, 03, 25, 1, 59, 59)));
 430                                 Assert.IsFalse (london.IsInvalidTime (new DateTime (2007, 03, 25, 2, 0, 0)));
 431                         }
 432                 }
 433
 434                 [TestFixture]
 435                 public class IsAmbiguousTimeTests
 436                 {
 437                         TimeZoneInfo london;
 438
 439                         [SetUp]
 440                         public void CreateTimeZones ()
 441                         {
 442                                 TimeZoneInfo.TransitionTime start = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,1,0,0), 3, 5, DayOfWeek.Sunday);
 443                                 TimeZoneInfo.TransitionTime end = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,2,0,0), 10, 5, DayOfWeek.Sunday);
 444                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (DateTime.MinValue.Date, DateTime.MaxValue.Date, new TimeSpan (1,0,0), start, end);
 445                                 london = TimeZoneInfo.CreateCustomTimeZone ("Europe/London", new TimeSpan (0), "Europe/London", "British Standard Time", "British Summer Time", new TimeZoneInfo.AdjustmentRule [] {rule});
 446                         }
 447
 448                         [Test]
 449                         public void AmbiguousDates ()
 450                         {
 451                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 452                                         return;
 453                                 Assert.IsFalse (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 1, 0, 0)));
 454                                 Assert.IsTrue (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 1, 0, 1)));
 455                                 Assert.IsTrue (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 2, 0, 0)));
 456                                 Assert.IsFalse (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 2, 0, 1)));
 457                         }
 458
 459                         [Test]
 460                         public void AmbiguousUTCDates ()
 461                         {
 462                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 463                                         return;
 464                                 Assert.IsFalse (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 0, 0, 0, DateTimeKind.Utc)));
 465                                 Assert.IsTrue (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 0, 0, 1, DateTimeKind.Utc)));
 466                                 Assert.IsTrue (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 0, 59, 59, DateTimeKind.Utc)));
 467                                 Assert.IsFalse (london.IsAmbiguousTime (new DateTime (2007, 10, 28, 1, 0, 0, DateTimeKind.Utc)));
 468                         }
 469
 470                 #if SLOW_TESTS
 471                         [Test]
 472                         public void AmbiguousInUTC ()
 473                         {
 474                                 for (DateTime date = new DateTime (2007, 01, 01, 0, 0, 0); date < new DateTime (2007, 12, 31, 23, 59, 59); date += new TimeSpan (0,1,0)) {
 475                                         Assert.IsFalse (TimeZoneInfo.Utc.IsAmbiguousTime (date));
 476                                 }
 477                         }
 478                 #endif
 479                 }
 480
 481                 [TestFixture]
 482                 public class GetSystemTimeZonesTests
 483                 {
 484                         [Test]
 485                         public void NotEmpty ()
 486                         {
 487                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 488                                         return;
 489                                 global::System.Collections.ObjectModel.ReadOnlyCollection<TimeZoneInfo> systemTZ = TimeZoneInfo.GetSystemTimeZones ();
 490                                 Assert.IsNotNull(systemTZ, "SystemTZ is null");
 491                                 Assert.IsFalse (systemTZ.Count == 0, "SystemTZ is empty");
 492                         }
 493
 494                         [Test]
 495                         public void ContainsBrussels ()
 496                         {
 497                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 498                                         return;
 499                                 global::System.Collections.ObjectModel.ReadOnlyCollection<TimeZoneInfo> systemTZ = TimeZoneInfo.GetSystemTimeZones ();
 500                                 foreach (TimeZoneInfo tz in systemTZ) {
 501                                         if (tz.Id == "Europe/Brussels")
 502                                                 return;
 503                                 }
 504                                 Assert.Fail ("Europe/Brussels not found in SystemTZ");
 505                         }
 506                 }
 507
 508                 [TestFixture]
 509                 public class FindSystemTimeZoneByIdTests
 510                 {
 511                         [Test]
 512                         [ExpectedException (typeof (ArgumentNullException))]
 513                         public void NullId ()
 514                         {
 515                                 TimeZoneInfo.FindSystemTimeZoneById (null);
 516                         }
 517
 518                         [Test]
 519                         [ExpectedException (typeof (TimeZoneNotFoundException))]
 520                         public void NonSystemTimezone ()
 521                         {
 522                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 523                                         throw new TimeZoneNotFoundException ();
 524                                 TimeZoneInfo.FindSystemTimeZoneById ("Neverland/The_Lagoon");
 525                         }
 526
 527                         [Test]
 528                         public void FindBrusselsTZ ()
 529                         {
 530                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 531                                         return;
 532                                 TimeZoneInfo brussels = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Brussels");
 533                                 Assert.IsNotNull (brussels);
 534                         }
 535
 536                         [Test]
 537                         public void OffsetIsCorrectInKinshasa ()
 538                         {
 539                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 540                                         return;
 541                                 TimeZoneInfo kin = TimeZoneInfo.FindSystemTimeZoneById ("Africa/Kinshasa");
 542                                 Assert.AreEqual (new TimeSpan (1,0,0), kin.BaseUtcOffset, "BaseUtcOffset in Kinshasa is not +1h");
 543                         }
 544
 545                         [Test]
 546                         public void OffsetIsCorrectInBrussels ()
 547                         {
 548                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 549                                         return;
 550                                 TimeZoneInfo brussels = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Brussels");
 551                                 Assert.AreEqual (new TimeSpan (1,0,0), brussels.BaseUtcOffset, "BaseUtcOffset for Brussels is not +1h");
 552                         }
 553
 554                         [Test]
 555                         public void NoDSTInKinshasa ()
 556                         {
 557                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 558                                         return;
 559                                 TimeZoneInfo kin = TimeZoneInfo.FindSystemTimeZoneById ("Africa/Kinshasa");
 560                                 Assert.IsFalse (kin.SupportsDaylightSavingTime);
 561                         }
 562
 563                         [Test]
 564                         public void BrusselsSupportsDST ()
 565                         {
 566                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 567                                         return;
 568                                 TimeZoneInfo brussels = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Brussels");
 569                                 Assert.IsTrue (brussels.SupportsDaylightSavingTime);
 570                         }
 571
 572                         [Test]
 573                         public void MelbourneSupportsDST ()
 574                         {
 575                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 576                                         return;
 577                                 TimeZoneInfo melbourne = TimeZoneInfo.FindSystemTimeZoneById ("Australia/Melbourne");
 578                                 Assert.IsTrue (melbourne.SupportsDaylightSavingTime);
 579                         }
 580
 581                         [Test]
 582                         public void RomeAndVaticanSharesTime ()
 583                         {
 584                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 585                                         return;
 586                                 TimeZoneInfo rome = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Rome");
 587                                 TimeZoneInfo vatican = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Vatican");
 588                                 Assert.IsTrue (rome.HasSameRules (vatican));
 589                         }
 590
 591                         [Test]
 592                         public void FindSystemTimeZoneById_Local_Roundtrip ()
 593                         {
 594                                 Assert.AreEqual (TimeZoneInfo.Local.Id, TimeZoneInfo.FindSystemTimeZoneById (TimeZoneInfo.Local.Id).Id);
 595                         }
 596
 597                         [Test]
 598                         public void Test326 ()
 599                         {
 600                                 DateTime utc = DateTime.UtcNow;
 601                                 DateTime local = TimeZoneInfo.ConvertTime (utc, TimeZoneInfo.Utc, TimeZoneInfo.FindSystemTimeZoneById (TimeZoneInfo.Local.Id));
 602                                 Assert.AreEqual (local, utc + TimeZoneInfo.Local.GetUtcOffset (utc), "ConvertTime/Local");
 603                         }
 604
 605                 #if SLOW_TESTS
 606                         [Test]
 607                         public void BrusselsAdjustments ()
 608                         {
 609                                 TimeZoneInfo.TransitionTime start = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,2,0,0), 3, 5, DayOfWeek.Sunday);
 610                                 TimeZoneInfo.TransitionTime end = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,3,0,0), 10, 5, DayOfWeek.Sunday);
 611                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (DateTime.MinValue.Date, DateTime.MaxValue.Date, new TimeSpan (1,0,0), start, end);
 612                                 TimeZoneInfo brussels = TimeZoneInfo.CreateCustomTimeZone ("Europe/Brussels", new TimeSpan (1, 0, 0), "Europe/Brussels", "", "", new TimeZoneInfo.AdjustmentRule [] {rule});
 613
 614                                 TimeZoneInfo brussels_sys = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Brussels");
 615
 616                                 for (DateTime date = new DateTime (2006, 01, 01, 0, 0, 0, DateTimeKind.Local); date < new DateTime (2007, 12, 31, 23, 59, 59); date += new TimeSpan (0,30,0)) {
 617                                         Assert.AreEqual (brussels.GetUtcOffset (date), brussels_sys.GetUtcOffset (date));
 618                                         Assert.AreEqual (brussels.IsDaylightSavingTime (date), brussels_sys.IsDaylightSavingTime (date));
 619                                 }
 620                         }
 621                 #endif
 622                 }
 623
 624                 [TestFixture]
 625                 public class GetAmbiguousTimeOffsetsTests
 626                 {
 627                         [Test]
 628                         [ExpectedException (typeof(ArgumentException))]
 629                         public void DateIsNotAmbiguous ()
 630                         {
 631                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 632                                         throw new ArgumentException ();
 633                                 TimeZoneInfo brussels = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Brussels");
 634                                 DateTime date = new DateTime (2007, 05, 11, 11, 40, 00);
 635                                 brussels.GetAmbiguousTimeOffsets (date);
 636                         }
 637
 638                         [Test]
 639                         public void AmbiguousOffsets ()
 640                         {
 641                                 if (Environment.OSVersion.Platform != PlatformID.Unix)
 642                                         return;
 643                                 TimeZoneInfo brussels = TimeZoneInfo.FindSystemTimeZoneById ("Europe/Brussels");
 644                                 DateTime date = new DateTime (2007, 10, 28, 2, 30, 00);
 645                                 Assert.IsTrue (brussels.IsAmbiguousTime (date));
 646                                 Assert.AreEqual (2, brussels.GetAmbiguousTimeOffsets (date).Length);
 647                                 Assert.AreEqual (new TimeSpan[] {new TimeSpan (1, 0, 0), new TimeSpan (2, 0, 0)}, brussels.GetAmbiguousTimeOffsets (date));
 648                         }
 649                 }
 650
 651                 [TestFixture]
 652                 public class HasSameRulesTests
 653                 {
 654                         [Test]
 655                         public void NullAdjustments () //bnc #391011
 656                         {
 657                                 TimeZoneInfo utc = TimeZoneInfo.Utc;
 658                                 TimeZoneInfo custom = TimeZoneInfo.CreateCustomTimeZone ("Custom", new TimeSpan (0), "Custom", "Custom");
 659                                 Assert.IsTrue (utc.HasSameRules (custom));
 660                         }
 661                 }
 662
 663                 [TestFixture]
 664                 public class SerializationTests
 665                 {
 666                         [Test]
 667                         public void Serialization_Deserialization ()
 668                         {
 669                                 TimeZoneInfo.TransitionTime start = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,1,0,0), 3, 5, DayOfWeek.Sunday);
 670                                 TimeZoneInfo.TransitionTime end = TimeZoneInfo.TransitionTime.CreateFloatingDateRule (new DateTime (1,1,1,2,0,0), 10, 5, DayOfWeek.Sunday);
 671                                 TimeZoneInfo.AdjustmentRule rule = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule (DateTime.MinValue.Date, DateTime.MaxValue.Date, new TimeSpan (1,0,0), start, end);
 672                                 TimeZoneInfo london = TimeZoneInfo.CreateCustomTimeZone ("Europe/London", new TimeSpan (0), "Europe/London", "British Standard Time", "British Summer Time", new TimeZoneInfo.AdjustmentRule [] {rule});
 673                                 MemoryStream stream = new MemoryStream ();
 674                                 BinaryFormatter formatter = new BinaryFormatter ();
 675                                 formatter.Serialize (stream, london);
 676                                 stream.Position = 0;
 677                                 TimeZoneInfo deserialized = (TimeZoneInfo) formatter.Deserialize (stream);
 678                                 stream.Close ();
 679                                 stream.Dispose ();
 680                                 Assert.AreEqual (london, deserialized);
 681                         }
 682                 }
 683         }
 684 }
 685 #endif