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

   1 //
   2 // DateTimeTest.cs - NUnit Test Cases for the System.DateTime struct
   3 //
   4 // author:
   5 //   Martin Baulig (martin@gnome.org)
   6 //
   7 //   (C) 2002 Free Software Foundation
   8 // Copyright (C) 2004 Novell (http://www.novell.com)
   9 //
  10
  11 using System;
  12 using System.IO;
  13 using System.Threading;
  14 using System.Globalization;
  15
  16 using NUnit.Framework;
  17
  18 namespace MonoTests.System
  19 {
  20         [TestFixture]
  21         public class DateTimeTest
  22         {
  23                 [Flags]
  24                 internal enum Resolution : ushort
  25                 {
  26                         Year = 64,
  27                         Month = 96,
  28                         Day = 112,
  29                         Hour = 120,
  30                         Minute = 124,
  31                         Second = 126,
  32                         Millisecond = 127,
  33                         _Month = 32,
  34                         _Day = 16,
  35                         _Hour = 8,
  36                         _Minute = 4,
  37                         _Second = 2,
  38                         _Millisecond = 1
  39                 }
  40
  41                 internal void DTAssertEquals (DateTime actual, DateTime expected, Resolution resolution)
  42                 {
  43                         DTAssertEquals (actual, expected, resolution, "");
  44                 }
  45
  46                 internal void DTAssertEquals (DateTime expected, DateTime actual, Resolution resolution, string message)
  47                 {
  48                         if ((resolution & Resolution.Year) != 0)
  49                                 Assert.AreEqual (expected.Year, actual.Year, message);
  50                         if ((resolution & Resolution._Month) != 0)
  51                                 Assert.AreEqual (expected.Month, actual.Month, message);
  52                         if ((resolution & Resolution._Day) != 0)
  53                                 Assert.AreEqual (expected.Day, actual.Day, message);
  54                         if ((resolution & Resolution._Hour) != 0)
  55                                 Assert.AreEqual (expected.Hour, actual.Hour, message);
  56                         if ((resolution & Resolution._Minute) != 0)
  57                                 Assert.AreEqual (expected.Minute, actual.Minute, message);
  58                         if ((resolution & Resolution._Second) != 0)
  59                                 Assert.AreEqual (expected.Second, actual.Second, message);
  60                         if ((resolution & Resolution._Millisecond) != 0)
  61                                 Assert.AreEqual (expected.Millisecond, actual.Millisecond, message);
  62                 }
  63
  64                 private CultureInfo oldcult;
  65
  66                 long[] myTicks = {
  67                         631501920000000000L,    // 25 Feb 2002 - 00:00:00
  68                         631502475130080000L,    // 25 Feb 2002 - 15:25:13,8
  69                         631502115130080000L,    // 25 Feb 2002 - 05:25:13,8
  70                         631502115000000000L,    // 25 Feb 2002 - 05:25:00
  71                         631502115130000000L,    // 25 Feb 2002 - 05:25:13
  72                         631502079130000000L,    // 25 Feb 2002 - 04:25:13
  73                         629197085770000000L,    // 06 Nov 1994 - 08:49:37
  74                         631796544000000000L,    // 01 Feb 2003 - 00:00:00
  75                 };
  76
  77                 [SetUp]
  78                 public void SetUp()
  79                 {
  80                         // the current culture determines the result of formatting
  81                         oldcult = Thread.CurrentThread.CurrentCulture;
  82                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("");
  83                 }
  84
  85                 [TearDown]
  86                 public void TearDown ()
  87                 {
  88                         Thread.CurrentThread.CurrentCulture = oldcult;
  89                 }
  90
  91                 [Test]
  92                 public void TestCtors ()
  93                 {
  94                         DateTime t1 = new DateTime (2002,2,25);
  95                         Assert.AreEqual (myTicks [0], t1.Ticks, "A01");
  96                         DateTime t2 = new DateTime (2002,2,25,15,25,13,8);
  97                         Assert.AreEqual (myTicks [1], t2.Ticks, "A02");
  98                         Assert.AreEqual (myTicks [0], t2.Date.Ticks, "A03");
  99                         Assert.AreEqual (2002, t2.Year, "A04");
 100                         Assert.AreEqual (2, t2.Month, "A05");
 101                         Assert.AreEqual (25, t2.Day, "A06");
 102                         Assert.AreEqual (15, t2.Hour, "A07");
 103                         Assert.AreEqual (25, t2.Minute, "A08");
 104                         Assert.AreEqual (13, t2.Second, "A09");
 105                         Assert.AreEqual (8, t2.Millisecond, "A10");
 106                         DateTime t3 = new DateTime (2002,2,25,5,25,13,8);
 107                         Assert.AreEqual (myTicks [2], t3.Ticks, "A11");
 108                 }
 109
 110                 [Test]
 111                 public void Constructor_Max ()
 112                 {
 113                         Assert.AreEqual (3155378975999990000, new DateTime (9999, 12, 31, 23, 59, 59, 999).Ticks, "Max");
 114                 }
 115
 116                 [Test]
 117                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 118                 public void Constructor_Milliseconds_Negative ()
 119                 {
 120                         new DateTime (9999, 12, 31, 23, 59, 59, -1);
 121                 }
 122
 123                 [Test]
 124                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 125                 public void Constructor_Milliseconds_1000 ()
 126                 {
 127                         new DateTime (9999, 12, 31, 23, 59, 59, 1000);
 128                 }
 129
 130                 [Test]
 131                 public void Fields ()
 132                 {
 133                         Assert.AreEqual (3155378975999999999L, DateTime.MaxValue.Ticks, "#1");
 134                         Assert.AreEqual (0, DateTime.MinValue.Ticks, "#2");
 135                 }
 136
 137                 [Test]
 138                 public void Add ()
 139                 {
 140                         DateTime t1 = new DateTime (myTicks [1]);
 141                         TimeSpan span = new TimeSpan (3, 54, 1);
 142                         DateTime t2 = t1.Add (span);
 143
 144                         Assert.AreEqual (25, t2.Day, "#1");
 145                         Assert.AreEqual (19, t2.Hour, "#2");
 146                         Assert.AreEqual (19, t2.Minute, "#3");
 147                         Assert.AreEqual (14, t2.Second, "#4");
 148
 149                         Assert.AreEqual (25, t1.Day, "#5");
 150                         Assert.AreEqual (15, t1.Hour, "#6");
 151                         Assert.AreEqual (25, t1.Minute, "#7");
 152                         Assert.AreEqual (13, t1.Second, "#8");
 153                 }
 154
 155                 [Test]
 156                 [ExpectedException(typeof (ArgumentOutOfRangeException))]
 157                 public void AddOutOfRangeException1 ()
 158                 {
 159                         DateTime t1 = new DateTime (myTicks [1]);
 160                         t1.Add (TimeSpan.MaxValue);
 161                 }
 162
 163                 [Test]
 164                 [ExpectedException(typeof (ArgumentOutOfRangeException))]
 165                 public void AddOutOfRangeException2 ()
 166                 {
 167                         DateTime t1 = new DateTime (myTicks [1]);
 168                         t1.Add (TimeSpan.MinValue);
 169                 }
 170
 171                 [Test]
 172                 public void AddDays ()
 173                 {
 174                         DateTime t1 = new DateTime (myTicks [1]);
 175                         t1 = t1.AddDays (3);
 176                         Assert.AreEqual (28, t1.Day, "#A1");
 177                         Assert.AreEqual (15, t1.Hour, "#A2");
 178                         Assert.AreEqual (25, t1.Minute, "#A3");
 179                         Assert.AreEqual (13, t1.Second, "#A4");
 180
 181                         t1 = t1.AddDays (1.9);
 182                         Assert.AreEqual (2, t1.Day, "#B1");
 183                         Assert.AreEqual (13, t1.Hour, "#B2");
 184                         Assert.AreEqual (1, t1.Minute, "#B3");
 185                         Assert.AreEqual (13, t1.Second, "#B4");
 186
 187                         t1 = t1.AddDays (0.2);
 188                         Assert.AreEqual (2, t1.Day, "#C1");
 189                         Assert.AreEqual (17, t1.Hour, "#C2");
 190                         Assert.AreEqual (49, t1.Minute, "#C3");
 191                         Assert.AreEqual (13, t1.Second, "#C4");
 192                 }
 193
 194                 [Test]
 195                 [ExpectedException(typeof (ArgumentOutOfRangeException))]
 196                 public void AddDaysOutOfRangeException1 ()
 197                 {
 198                         DateTime t1 = new DateTime (myTicks [1]);
 199                         t1.AddDays (10000000);
 200                 }
 201
 202                 [Test]
 203                 [ExpectedException(typeof (ArgumentOutOfRangeException))]
 204                 public void AddDaysOutOfRangeException2 ()
 205                 {
 206                         DateTime t1 = new DateTime (myTicks [1]);
 207                         t1.AddDays (-10000000);
 208                 }
 209
 210                 [Test]
 211                 public void AddHours ()
 212                 {
 213                         DateTime t1 = new DateTime (myTicks [1]);
 214                         t1 = t1.AddHours (10);
 215                         Assert.AreEqual (26, t1.Day, "#A1");
 216                         Assert.AreEqual (1, t1.Hour, "#A2");
 217                         Assert.AreEqual (25, t1.Minute, "#A3");
 218                         Assert.AreEqual (13, t1.Second, "#A4");
 219
 220                         t1 = t1.AddHours (-3.7);
 221                         Assert.AreEqual (25, t1.Day, "#B1");
 222                         Assert.AreEqual (21, t1.Hour, "#B2");
 223                         Assert.AreEqual (43, t1.Minute, "#B3");
 224                         Assert.AreEqual (13, t1.Second, "#B4");
 225
 226                         t1 = t1.AddHours (3.732);
 227                         Assert.AreEqual (26, t1.Day, "#C1");
 228                         Assert.AreEqual (1, t1.Hour, "#C2");
 229                         Assert.AreEqual (27, t1.Minute, "#C3");
 230                         Assert.AreEqual (8, t1.Second, "#C4");
 231                 }
 232
 233                 [Test]
 234                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 235                 public void AddHoursOutOfRangeException1 ()
 236                 {
 237                         DateTime t1 = new DateTime (myTicks [1]);
 238                         t1.AddHours (9E100);
 239                 }
 240
 241                 [Test]
 242                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 243                 public void AddHoursOutOfRangeException2 ()
 244                 {
 245                         DateTime t1 = new DateTime (myTicks [1]);
 246                         t1.AddHours (-9E100);
 247                 }
 248
 249                 [Test]
 250                 public void AddMilliseconds ()
 251                 {
 252                         DateTime t1 = new DateTime (myTicks [1]);
 253                         t1 = t1.AddMilliseconds (1E10);
 254                         Assert.AreEqual (21, t1.Day, "#A1");
 255                         Assert.AreEqual (9, t1.Hour, "#A2");
 256                         Assert.AreEqual (11, t1.Minute, "#A3");
 257                         Assert.AreEqual (53, t1.Second, "#A4");
 258
 259                         t1 = t1.AddMilliseconds (-19E10);
 260                         Assert.AreEqual (13, t1.Day, "#B1");
 261                         Assert.AreEqual (7, t1.Hour, "#B2");
 262                         Assert.AreEqual (25, t1.Minute, "#B3");
 263                         Assert.AreEqual (13, t1.Second, "#B4");
 264
 265                         t1 = t1.AddMilliseconds (15.623);
 266                         Assert.AreEqual (13, t1.Day, "#C1");
 267                         Assert.AreEqual (7, t1.Hour, "#C2");
 268                         Assert.AreEqual (25, t1.Minute, "#C3");
 269                         Assert.AreEqual (13, t1.Second, "#C4");
 270                 }
 271
 272                 const long MaxMillis = 315537897600000;
 273
 274                 [Test]
 275                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 276                 public void AddMillisecondsOutOfRangeException1 ()
 277                 {
 278                         DateTime t1 = new DateTime (myTicks [1]);
 279                         // double to long conversion with overflow lead to "unspecified value",
 280                         // ref: https://msdn.microsoft.com/en-us/library/yht2cx7b.aspx
 281                         // so we adapt the test to avoid this condition based on the real limit
 282                         // see https://github.com/Microsoft/referencesource/blob/master/mscorlib/system/datetime.cs#L90
 283                         t1.AddMilliseconds (MaxMillis + 1);
 284                 }
 285
 286                 [Test]
 287                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 288                 public void AddMillisecondsOutOfRangeException2 ()
 289                 {
 290                         DateTime t1 = new DateTime (myTicks [1]);
 291                         t1.AddMilliseconds (-MaxMillis-1);
 292                 }
 293
 294                 [Test]
 295                 public void TestToString ()
 296                 {
 297                         DateTime t1 = new DateTime (myTicks[2]);
 298                         DateTime t2 = new DateTime (myTicks[1]);
 299                         DateTime t3 = new DateTime (999, 1, 2, 3, 4, 5);
 300                         // Standard patterns
 301                         Assert.AreEqual ("02/25/2002", t1.ToString ("d"), "#A1");
 302                         Assert.AreEqual ("Monday, 25 February 2002", t1.ToString ("D"), "#A2");
 303                         Assert.AreEqual ("Monday, 25 February 2002 05:25", t1.ToString ("f"), "#A3");
 304                         Assert.AreEqual ("Monday, 25 February 2002 05:25:13", t1.ToString ("F"), "#A4");
 305                         Assert.AreEqual ("02/25/2002 05:25", t1.ToString ("g"), "#A5");
 306                         Assert.AreEqual ("02/25/2002 05:25:13", t1.ToString ("G"), "#A6");
 307                         Assert.AreEqual ("February 25", t1.ToString ("m"), "#A7");
 308                         Assert.AreEqual ("February 25", t1.ToString ("M"), "#A8");
 309                         Assert.AreEqual ("Mon, 25 Feb 2002 05:25:13 GMT", t1.ToString ("r"), "#A9");
 310                         Assert.AreEqual ("Mon, 25 Feb 2002 05:25:13 GMT", t1.ToString ("R"), "#A10");
 311                         Assert.AreEqual ("2002-02-25T05:25:13", t1.ToString ("s"), "#A11");
 312                         Assert.AreEqual ("05:25", t1.ToString ("t"), "#A12");
 313                         Assert.AreEqual ("05:25:13", t1.ToString ("T"), "#A13");
 314                         Assert.AreEqual ("2002-02-25 05:25:13Z", t1.ToString ("u"), "#A14");
 315                         // FIXME: this test is timezone dependent
 316                         // Assert.AreEqual ("Sunday, 24 February 2002 11:25:13", t1.ToString ("U"), "#A15");
 317                         Assert.AreEqual ("2002 February", t1.ToString ("y"), "#A16");
 318                         Assert.AreEqual ("2002 February", t1.ToString ("Y"), "#A17");
 319                         Assert.AreEqual ("02/25/2002 05:25:13", t1.ToString (""), "#A18");
 320
 321                         // Custom patterns
 322                         Assert.AreEqual ("25", t1.ToString ("%d"), "#B1");
 323                         Assert.AreEqual ("25", t1.ToString ("dd"), "#B2");
 324                         Assert.AreEqual ("Mon", t1.ToString ("ddd"), "#B3");
 325                         Assert.AreEqual ("Monday", t1.ToString ("dddd"), "#B4");
 326                         Assert.AreEqual ("2", t1.ToString ("%M"), "#B5");
 327                         Assert.AreEqual ("02", t1.ToString ("MM"), "#B6");
 328                         Assert.AreEqual ("Feb", t1.ToString ("MMM"), "#B7");
 329                         Assert.AreEqual ("February", t1.ToString ("MMMM"), "#B8");
 330                         Assert.AreEqual ("2", t1.ToString ("%y"), "#B9");
 331                         Assert.AreEqual ("02", t1.ToString ("yy"), "#B10");
 332                         Assert.AreEqual ("2002", t1.ToString ("yyyy"), "#B11");
 333                         Assert.AreEqual ("5", t1.ToString ("%h"), "#B12");
 334                         Assert.AreEqual ("05", t1.ToString ("hh"), "#B13");
 335                         Assert.AreEqual ("3", t2.ToString ("%h"), "#B14");
 336                         Assert.AreEqual ("03", t2.ToString ("hh"), "#B15");
 337                         Assert.AreEqual ("15", t2.ToString ("%H"), "#B16");
 338                         Assert.AreEqual ("15", t2.ToString ("HH"), "#B17");
 339                         Assert.AreEqual ("25", t2.ToString ("%m"), "#B18");
 340                         Assert.AreEqual ("25", t2.ToString ("mm"), "#B19");
 341                         Assert.AreEqual ("13", t2.ToString ("%s"), "#B20");
 342                         Assert.AreEqual ("13", t2.ToString ("ss"), "#B21");
 343                         Assert.AreEqual ("A", t1.ToString ("%t"), "#B22");
 344                         Assert.AreEqual ("P", t2.ToString ("%t"), "#B23");
 345                         Assert.AreEqual ("AM", t1.ToString ("tt"), "#B24");
 346                         Assert.AreEqual ("PM", t2.ToString ("tt"), "#B25");
 347                         long offset = TimeZone.CurrentTimeZone.GetUtcOffset(t1).Ticks / 36000000000;
 348                         // Must specify '+0' for GMT
 349                         Assert.AreEqual (offset.ToString ("+#;-#;+0"), t1.ToString ("%z"), "#B26");
 350                         Assert.AreEqual (offset.ToString ("+00;-00;+00"), t1.ToString ("zz"), "#B28");
 351                         // This does not work in, eg banglore, because their timezone has an offset of
 352                         // +05:30
 353                         //Assert.AreEqual (offset.ToString("+00;-00;00") + ":00", t1.ToString ("zzz"), "#B28");
 354                         Assert.AreEqual (" : ", t1.ToString (" : "), "#B29");
 355                         Assert.AreEqual (" / ", t1.ToString (" / "), "#B30");
 356                         Assert.AreEqual (" yyy ", t1.ToString (" 'yyy' "), "#B31");
 357                         Assert.AreEqual (" d", t1.ToString (" \\d"), "#B32");
 358                         Assert.AreEqual ("2002", t1.ToString ("yyy"), "#B33");
 359                         Assert.AreEqual ("0002002", t1.ToString ("yyyyyyy"), "#B34");
 360                         Assert.AreEqual ("999", t3.ToString ("yyy"), "#B33");
 361                         Assert.AreEqual ("0999", t3.ToString ("yyyy"), "#B33");
 362                 }
 363
 364                 [Test]
 365                 public void TestToStringGenitive ()
 366                 {
 367                         DateTime dt = new DateTime (2010, 1, 2, 3, 4, 5);
 368                         var dtf = new CultureInfo ("cs-cz").DateTimeFormat;
 369
 370                         Assert.AreEqual ("2 ledna", dt.ToString ("d MMMM", dtf), "#A1");
 371                         Assert.AreEqual ("2. ledna", dt.ToString ("d. MMMM", dtf), "#A2");
 372                         Assert.AreEqual ("leden", dt.ToString ("MMMM", dtf), "#A4");
 373                         Assert.AreEqual ("leden", dt.ToString ("MMMMMMM", dtf), "#A5");
 374                 }
 375
 376                 [Test]
 377                 public void ParseExact_Format_Empty ()
 378                 {
 379                         try {
 380                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", string.Empty, null);
 381                                 Assert.Fail ("#A1");
 382                         } catch (FormatException ex) {
 383                                 // Format specifier was invalid
 384                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
 385                                 Assert.IsNull (ex.InnerException, "#B3");
 386                                 Assert.IsNotNull (ex.Message, "#B4");
 387                         }
 388
 389                         try {
 390                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", string.Empty, null,
 391                                         DateTimeStyles.None);
 392                                 Assert.Fail ("#B1");
 393                         } catch (FormatException ex) {
 394                                 // Format specifier was invalid
 395                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
 396                                 Assert.IsNull (ex.InnerException, "#B3");
 397                                 Assert.IsNotNull (ex.Message, "#B4");
 398                         }
 399                 }
 400
 401                 [Test]
 402                 public void ParseExact_Format_Null ()
 403                 {
 404                         try {
 405                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", (string) null, null);
 406                                 Assert.Fail ("#A1");
 407                         } catch (ArgumentNullException ex) {
 408                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
 409                                 Assert.IsNull (ex.InnerException, "#A3");
 410                                 Assert.IsNotNull (ex.Message, "#A4");
 411                                 Assert.IsNotNull (ex.ParamName, "#A5");
 412                                 Assert.AreEqual ("format", ex.ParamName, "#A6");
 413                         }
 414
 415                         try {
 416                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", (string) null, null,
 417                                         DateTimeStyles.None);
 418                                 Assert.Fail ("#B1");
 419                         } catch (ArgumentNullException ex) {
 420                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
 421                                 Assert.IsNull (ex.InnerException, "#B3");
 422                                 Assert.IsNotNull (ex.Message, "#B4");
 423                                 Assert.IsNotNull (ex.ParamName, "#B5");
 424                                 Assert.AreEqual ("format", ex.ParamName, "#B6");
 425                         }
 426                 }
 427
 428                 [Test]
 429                 public void ParseExact_Formats_Empty ()
 430                 {
 431                         try {
 432                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", new string [0],
 433                                         null, DateTimeStyles.None);
 434                                 Assert.Fail ("#A1");
 435                         } catch (FormatException ex) {
 436                                 // Format specifier was invalid
 437                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#A2");
 438                                 Assert.IsNull (ex.InnerException, "#A3");
 439                                 Assert.IsNotNull (ex.Message, "#A4");
 440                         }
 441
 442                         string [] formats = new string [] { "G", string.Empty, "d" };
 443                         try {
 444                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", formats, null,
 445                                         DateTimeStyles.None);
 446                                 Assert.Fail ("#B1");
 447                         } catch (FormatException ex) {
 448                                 // Format specifier was invalid
 449                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
 450                                 Assert.IsNull (ex.InnerException, "#B3");
 451                                 Assert.IsNotNull (ex.Message, "#B4");
 452                         }
 453                 }
 454
 455                 [Test]
 456                 public void ParseExact_Formats_Null ()
 457                 {
 458                         try {
 459                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", (string []) null,
 460                                         null, DateTimeStyles.None);
 461                                 Assert.Fail ("#A1");
 462                         } catch (ArgumentNullException ex) {
 463                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
 464                                 Assert.IsNull (ex.InnerException, "#A3");
 465                                 Assert.IsNotNull (ex.Message, "#A4");
 466                                 Assert.IsNotNull (ex.ParamName, "#A5");
 467                                 Assert.AreEqual ("formats", ex.ParamName, "#A6");
 468                         }
 469
 470                         string [] formats = new string [] { "G", null, "d" };
 471                         try {
 472                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", formats, null,
 473                                         DateTimeStyles.None);
 474                                 Assert.Fail ("#B1");
 475                         } catch (FormatException ex) {
 476                                 // Format specifier was invalid
 477                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
 478                                 Assert.IsNull (ex.InnerException, "#B3");
 479                                 Assert.IsNotNull (ex.Message, "#B4");
 480                         }
 481                 }
 482
 483                 [Test]
 484                 public void ParseExact_String_Empty ()
 485                 {
 486                         try {
 487                                 DateTime.ParseExact (string.Empty, "G", null);
 488                                 Assert.Fail ("#A1");
 489                         } catch (FormatException ex) {
 490                                 // Format specifier was invalid
 491                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#A2");
 492                                 Assert.IsNull (ex.InnerException, "#A3");
 493                                 Assert.IsNotNull (ex.Message, "#A4");
 494                         }
 495
 496                         try {
 497                                 DateTime.ParseExact (string.Empty, "G", null, DateTimeStyles.None);
 498                                 Assert.Fail ("#B1");
 499                         } catch (FormatException ex) {
 500                                 // Format specifier was invalid
 501                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
 502                                 Assert.IsNull (ex.InnerException, "#B3");
 503                                 Assert.IsNotNull (ex.Message, "#B4");
 504                         }
 505
 506                         try {
 507                                 DateTime.ParseExact (string.Empty, new string [] { "G" }, null,
 508                                         DateTimeStyles.None);
 509                                 Assert.Fail ("#C1");
 510                         } catch (FormatException ex) {
 511                                 // Format specifier was invalid
 512                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#C2");
 513                                 Assert.IsNull (ex.InnerException, "#C3");
 514                                 Assert.IsNotNull (ex.Message, "#C4");
 515                         }
 516                 }
 517
 518                 [Test]
 519                 public void ParseExact_String_Null ()
 520                 {
 521                         try {
 522                                 DateTime.ParseExact ((string) null, "G", null);
 523                                 Assert.Fail ("#A1");
 524                         } catch (ArgumentNullException ex) {
 525                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
 526                                 Assert.IsNull (ex.InnerException, "#A3");
 527                                 Assert.IsNotNull (ex.Message, "#A4");
 528                                 Assert.IsNotNull (ex.ParamName, "#A5");
 529                                 Assert.AreEqual ("s", ex.ParamName, "#A6");
 530                         }
 531
 532                         try {
 533                                 DateTime.ParseExact ((string) null, "G", null, DateTimeStyles.None);
 534                                 Assert.Fail ("#B1");
 535                         } catch (ArgumentNullException ex) {
 536                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
 537                                 Assert.IsNull (ex.InnerException, "#B3");
 538                                 Assert.IsNotNull (ex.Message, "#B4");
 539                                 Assert.IsNotNull (ex.ParamName, "#B5");
 540                                 Assert.AreEqual ("s", ex.ParamName, "#B6");
 541                         }
 542
 543                         try {
 544                                 DateTime.ParseExact ((string) null, new string [] { "G" }, null,
 545                                         DateTimeStyles.None);
 546                                 Assert.Fail ("#C1");
 547                         } catch (ArgumentNullException ex) {
 548                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#C2");
 549                                 Assert.IsNull (ex.InnerException, "#C3");
 550                                 Assert.IsNotNull (ex.Message, "#C4");
 551                                 Assert.IsNotNull (ex.ParamName, "#C5");
 552                                 Assert.AreEqual ("s", ex.ParamName, "#C6");
 553                         }
 554                 }
 555
 556                 [Test]
 557                 public void TestParseExact3 ()
 558                 {
 559                         DateTime t1 = DateTime.ParseExact ("2002-02-25 04:25:13Z", "u", null);
 560                         Assert.AreEqual (2002, t1.Year, "#1");
 561                         Assert.AreEqual (02, t1.Month, "#2");
 562                         Assert.AreEqual (25, t1.Day, "#3");
 563                         Assert.AreEqual (04, t1.Hour, "#4");
 564                         Assert.AreEqual (25, t1.Minute, "#5");
 565                         Assert.AreEqual (13, t1.Second, "#6");
 566                 }
 567
 568                 [Test]
 569                 public void TestParseExact4 ()
 570                 {
 571                         // Checks 24hours format used together with the AM/PM designator
 572                         string s = "6/28/2004 13:00:00 AM";
 573                         string f = "M/d/yyyy HH':'mm':'ss tt";
 574                         try {
 575                                 DateTime.ParseExact (s, f, CultureInfo.InvariantCulture);
 576                                 Assert.Fail ("#1");
 577                         } catch (FormatException) {
 578                         }
 579
 580                         s = "6/28/2004 04:00:00 AM";
 581                         DateTime.ParseExact (s, f, CultureInfo.InvariantCulture);
 582
 583                         s = "6/28/2004 06:00:00 PM";
 584                         try {
 585                                 DateTime.ParseExact (s, f, CultureInfo.InvariantCulture);
 586                                 Assert.Fail ("#2");
 587                         } catch (FormatException) {
 588                         }
 589
 590                         s = "6/28/2004 17:00:00 PM";
 591                         DateTime.ParseExact (s, f, CultureInfo.InvariantCulture);
 592                 }
 593
 594                 [Test]
 595                 public void TestParseExact4_2 ()
 596                 {
 597                         // bug #63137
 598                         DateTime.ParseExact ("Wed, 12 May 2004 20:51:09 +0200",
 599                                 @"ddd, d MMM yyyy H:m:s zzz",
 600                                 CultureInfo.CreateSpecificCulture("en-us"),
 601                                 DateTimeStyles.AllowInnerWhite);
 602                 }
 603
 604                 [Test]
 605                 public void TestParseExact5 ()
 606                 {
 607                         DateTime dt = DateTime.ParseExact ("Wed, 12 May 2004 20:51:09 -02:30",
 608                                                         @"ddd, d MMM yyyy H:m:s zzz",
 609                                                         CultureInfo.CreateSpecificCulture("en-us"),
 610                                                         DateTimeStyles.AllowInnerWhite);
 611                         dt = dt.ToUniversalTime ();
 612                         Assert.AreEqual (23, dt.Hour, "Hour");
 613                         Assert.AreEqual (21, dt.Minute, "Minute");
 614                 }
 615
 616                 [Test]
 617                 public void TestParseExactMiliseconds ()
 618                 {
 619                         string s = "1984-09-17T09:00:00.6Z";
 620                         DateTime dt = DateTime.ParseExact (s, "yyyy-MM-dd'T'HH:mm:ss.FFF'Z'", CultureInfo.InvariantCulture);
 621                         Assert.AreEqual (new DateTime (1984, 9, 17, 9, 0, 0, 600), dt, "#1");
 622
 623                         s = "1984-09-17T09:00:00Z";
 624                         dt = DateTime.ParseExact (s, "yyyy-MM-dd'T'HH:mm:ss.FFF'Z'", CultureInfo.InvariantCulture);
 625                         Assert.AreEqual (new DateTime (1984, 9, 17, 9, 0, 0, 0), dt, "#2");
 626
 627                         s = "1984-09-17T09:00:00Z";
 628                         dt = DateTime.ParseExact (s, "yyyy-MM-dd'T'HH:mm:ssFFF'Z'", CultureInfo.InvariantCulture);
 629                         Assert.AreEqual (new DateTime (1984, 9, 17, 9, 0, 0, 0), dt, "#3");
 630                 }
 631
 632                 [Test]
 633                 public void TestParseExact ()
 634                 {
 635                         // Standard patterns
 636                         DateTime t1 = DateTime.ParseExact ("02/25/2002", "d", null);
 637                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A1");
 638                         t1 = DateTime.ParseExact ("Monday, 25 February 2002", "D", null);
 639                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A2");
 640                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25", "f", null);
 641                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A3");
 642                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13", "F", null);
 643                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A4");
 644                         t1 = DateTime.ParseExact ("02/25/2002 05:25", "g", null);
 645                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A5");
 646                         t1 = DateTime.ParseExact ("02/25/2002 05:25:13", "G", null);
 647                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A6");
 648                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 04:25:13", "U", null);
 649                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 650                         Assert.AreEqual (2002, t1.Year, "#A7");
 651                         Assert.AreEqual (02, t1.Month, "#A8");
 652                         Assert.AreEqual (25, t1.Day, "#A9");
 653                         Assert.AreEqual (04, t1.Hour, "#A10");
 654                         Assert.AreEqual (25, t1.Minute, "#A11");
 655                         Assert.AreEqual (13, t1.Second, "#A12");
 656                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 04:25:13", "U", null);
 657                         Assert.AreEqual ("Monday, 25 February 2002 04:25:13", t1.ToString ("U"), "#A13");
 658
 659                         DateTime t2 = new DateTime (DateTime.Today.Year, 2, 25);
 660                         t1 = DateTime.ParseExact ("February 25", "m", null);
 661                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B1");
 662
 663                         t2 = new DateTime (DateTime.Today.Year, 2, 25);
 664                         t1 = DateTime.ParseExact ("February 25", "M", null);
 665                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B2");
 666
 667                         t1 = DateTime.ParseExact ("Mon, 25 Feb 2002 04:25:13 GMT", "r", null);
 668                         Assert.AreEqual (2002, t1.Year, "#C1");
 669                         Assert.AreEqual (02, t1.Month, "#C2");
 670                         Assert.AreEqual (25, t1.Day, "#C3");
 671                         Assert.AreEqual (04, t1.Hour, "#C4");
 672                         Assert.AreEqual (25, t1.Minute, "#C5");
 673                         Assert.AreEqual (13, t1.Second, "#C6");
 674
 675                         t1 = DateTime.ParseExact ("Mon, 25 Feb 2002 04:25:13 GMT", "R", null);
 676                         Assert.AreEqual (2002, t1.Year, "#D1");
 677                         Assert.AreEqual (02, t1.Month, "#D2");
 678                         Assert.AreEqual (25, t1.Day, "#D3");
 679                         Assert.AreEqual (04, t1.Hour, "#D4");
 680                         Assert.AreEqual (25, t1.Minute, "#D5");
 681                         Assert.AreEqual (13, t1.Second, "#D6");
 682
 683                         t1 = DateTime.ParseExact ("2002-02-25T05:25:13", "s", null);
 684                         Assert.AreEqual (myTicks [4], t1.Ticks, "#E1");
 685
 686                         t2 = DateTime.Today + new TimeSpan (5,25,0);
 687                         t1 = DateTime.ParseExact ("05:25", "t", null);
 688                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E2");
 689
 690                         t2 = DateTime.Today + new TimeSpan (5,25,13);
 691                         t1 = DateTime.ParseExact ("05:25:13", "T", null);
 692                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E3");
 693
 694                         t2 = new DateTime (2002, 2, 1);
 695                         t1 = DateTime.ParseExact ("2002 February", "y", null);
 696                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E4");
 697
 698                         t2 = new DateTime (2002, 2, 1);
 699                         t1 = DateTime.ParseExact ("2002 February", "Y", null);
 700                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E5");
 701
 702                         // Custom patterns
 703                         t2 = new DateTime (DateTime.Now.Year, 1, 25);
 704                         t1 = DateTime.ParseExact ("25", "%d", null);
 705                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#F1");
 706                         t1 = DateTime.ParseExact ("25", "dd", null);
 707                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#F2");
 708
 709                         t2 = new DateTime (DateTime.Today.Year, 2, 1);
 710                         t1 = DateTime.ParseExact ("2", "%M", null);
 711                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G1");
 712                         t1 = DateTime.ParseExact ("02", "MM", null);
 713                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G2");
 714                         t1 = DateTime.ParseExact ("Feb", "MMM", null);
 715                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G3");
 716                         t1 = DateTime.ParseExact ("February", "MMMM", null);
 717                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G4");
 718
 719                         t2 = new DateTime (2005, 1, 1);
 720                         t1 = DateTime.ParseExact ("5", "%y", null);
 721                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G5");
 722                         t1 = DateTime.ParseExact ("05", "yy", null);
 723                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G6");
 724                         t1 = DateTime.ParseExact ("2005", "yyyy", null);
 725                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G7");
 726
 727                         t2 = DateTime.Today + new TimeSpan (5, 0, 0);
 728                         t1 = DateTime.ParseExact ("5A", "ht", null);
 729                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G8");
 730                         t1 = DateTime.ParseExact ("05A", "hht", null);
 731                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G9");
 732
 733                         t2 = DateTime.Today + new TimeSpan (15, 0, 0);
 734                         t1 = DateTime.ParseExact ("3P", "ht", null);
 735                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G10");
 736                         t1 = DateTime.ParseExact ("03P", "hht", null);
 737                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G11");
 738
 739                         t2 = DateTime.Today + new TimeSpan (5, 0, 0);
 740                         t1 = DateTime.ParseExact ("5", "%H", null);
 741                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G12");
 742
 743                         t2 = DateTime.Today + new TimeSpan (15, 0, 0);
 744                         t1 = DateTime.ParseExact ("15", "%H", null);
 745                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G13");
 746                         t1 = DateTime.ParseExact ("15", "HH", null);
 747                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G14");
 748
 749                         // Time zones
 750 #if false
 751                         // Fails durring DST for msft and mono
 752                         t2 = DateTime.Today + new TimeSpan (17, 18, 0);
 753                         t1 = DateTime.ParseExact ("11:18AM -5", "h:mmtt z", null);
 754                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 755                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
 756                                 t1 += new TimeSpan(1, 0, 0);
 757                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H1");
 758
 759                         t1 = DateTime.ParseExact ("11:18AM -05:00", "h:mmtt zzz", null);
 760                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 761                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
 762                                 t1 += new TimeSpan(1, 0, 0);
 763                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H2");
 764
 765                         t1 = DateTime.ParseExact ("7:18PM +03", "h:mmtt zz", null);
 766                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 767                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
 768                                 t1 += new TimeSpan(1, 0, 0);
 769                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H3");
 770
 771                         t1 = DateTime.ParseExact ("7:48PM +03:30", "h:mmtt zzz", null);
 772                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 773                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
 774                                 t1 += new TimeSpan(1, 0, 0);
 775                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H4");
 776 #endif
 777
 778                         // Options
 779                         t2 = DateTime.Today + new TimeSpan (16, 18, 0);
 780                         t1 = DateTime.ParseExact ("11:18AM -5", "h:mmtt z",
 781                                                   null, DateTimeStyles.AdjustToUniversal);
 782                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#I1");
 783
 784                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13", "F",
 785                                                   null, DateTimeStyles.AdjustToUniversal);
 786                         Assert.AreEqual (myTicks [4], t1.Ticks, "#I2");
 787                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13",
 788                                                   "dddd, dd MMMM yyyy HH:mm:ss",
 789                                                   null, DateTimeStyles.AdjustToUniversal);
 790                         Assert.AreEqual (myTicks [4], t1.Ticks, "#I3");
 791
 792                         t1 = DateTime.ParseExact ("02/25/2002", "d", null,
 793                                                   DateTimeStyles.AllowWhiteSpaces);
 794                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I4");
 795
 796                         t1 = DateTime.ParseExact ("    02/25/2002", "d", null,
 797                                                   DateTimeStyles.AllowLeadingWhite);
 798                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I5");
 799
 800                         t1 = DateTime.ParseExact ("02/25/2002    ", "d", null,
 801                                                   DateTimeStyles.AllowTrailingWhite);
 802                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I6");
 803
 804                         t1 = DateTime.ParseExact ("  02 / 25 / 2002    ", "d", null,
 805                                                   DateTimeStyles.AllowWhiteSpaces);
 806                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I7");
 807
 808                         // Multi Custom Patterns
 809                         string rfc1123_date = "r";
 810                         string rfc850_date = "dddd, dd'-'MMM'-'yy HH':'mm':'ss 'GMT'";
 811                         string asctime_date = "ddd MMM d HH':'mm':'ss yyyy";
 812                         string [] formats = new string [] {rfc1123_date, rfc850_date, asctime_date};
 813                         CultureInfo enUS = new CultureInfo("en-US", false);
 814                         t1 = DateTime.ParseExact ("Sun, 06 Nov 1994 08:49:37 GMT", formats[0], enUS,
 815                                                 DateTimeStyles.AllowWhiteSpaces);
 816                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J1");
 817                         t1 = DateTime.ParseExact ("Sunday, 06-Nov-94 08:49:37 GMT", formats[1], enUS,
 818                                                 DateTimeStyles.AllowWhiteSpaces);
 819                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J2");
 820                         t1 = DateTime.ParseExact ("Sun Nov  6 08:49:37 1994", formats[2], enUS,
 821                                                 DateTimeStyles.AllowWhiteSpaces);
 822                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J3");
 823                         t1 = DateTime.ParseExact ("Sun, 06 Nov 1994 08:49:37 GMT", formats, enUS,
 824                                                 DateTimeStyles.AllowWhiteSpaces);
 825                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J4");
 826                         t1 = DateTime.ParseExact ("Sunday, 06-Nov-94 08:49:37 GMT", formats, enUS,
 827                                                 DateTimeStyles.AllowWhiteSpaces);
 828                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J5");
 829                         t1 = DateTime.ParseExact ("Sun Nov  6 08:49:37 1994", formats, enUS,
 830                                                 DateTimeStyles.AllowWhiteSpaces);
 831                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J6");
 832                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13",
 833                                                 "ddddddd, dd MMMMMMM yyyy HHHHH:mmmmm:sssss",
 834                                                 null, DateTimeStyles.AdjustToUniversal);
 835                         Assert.AreEqual (myTicks[4], t1.Ticks, "#J7");
 836
 837                         // Bug 52274
 838                         t1 = DateTime.ParseExact ("--12--", "--MM--" , null);
 839                         Assert.AreEqual (12, t1.Month, "#K1");
 840                         t1=DateTime.ParseExact ("--12-24", "--MM-dd" , null);
 841                         Assert.AreEqual (24, t1.Day, "#K2");
 842                         Assert.AreEqual (12, t1.Month, "#K3");
 843                         t1=DateTime.ParseExact ("---24", "---dd" , null);
 844                         Assert.AreEqual (24, t1.Day, "#K4");
 845
 846                         // Bug 63376
 847                         t1 = DateTime.ParseExact ("18Aug2004 12:33:00", "ddMMMyyyy hh:mm:ss", new CultureInfo ("en-US"));
 848                         Assert.AreEqual (0, t1.Hour, "hh allows 12, though it's useless");
 849
 850                         // Bug 74775
 851                         DateTime.ParseExact ("Tue, 12 Apr 2005 10:10:04 +0100",
 852                                 "Tue, 12 Apr 2005 10:10:04 +0100", enUS);
 853                         try {
 854                                 DateTime.ParseExact ("Tue, 12 Apr 2005 10:10:04 +00000",
 855                                         "ddd, dd MMM yyyy HH':'mm':'ss zzz", enUS);
 856                                 Assert.Fail ("#L1");
 857                         } catch (FormatException) {
 858                         }
 859
 860                         // Bug #75213 : literal escaping.
 861                         t1 = DateTime.ParseExact ("20050707132527Z",
 862                                 "yyyyMMddHHmmss\\Z", CultureInfo.InvariantCulture);
 863                         Assert.AreEqual (632563395270000000, t1.Ticks, "#L2");
 864
 865                         // XAttributeTest.CastDateTimeOffsets():#6b
 866                         // It is said broken, probably due to timezone difference.
 867                         //t1 = DateTime.ParseExact ("2039-10-31T12:34:56.7552+00:00", "yyyy-MM-ddTHH:mm:ss.FFFFFFFzzz",
 868                         //                        CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
 869                         //Assert.AreEqual (643393064967552000, t1.Ticks, "#M");
 870                 }
 871
 872                 [Test]
 873                 public void TestParse2 ()
 874                 {
 875                         DateTime t1 = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT");
 876                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 877                         Assert.AreEqual (4, t1.Hour);
 878                 }
 879
 880                 [Test]
 881                 public void TestUtcOffset_Novell710512 ()
 882                 {
 883                         // test for bug Novell #710512
 884                         if (TimeZoneInfo.Local.BaseUtcOffset == TimeSpan.Zero)
 885                                 Assert.Ignore("Test doesn't apply with current time zone");
 886
 887                         var localTime = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT");
 888                         var utcTime = TimeZone.CurrentTimeZone.ToUniversalTime(localTime);
 889                         Assert.AreEqual (TimeSpan.Zero, TimeZone.CurrentTimeZone.GetUtcOffset (utcTime));
 890                 }
 891
 892                 [Test]
 893                 public void TestParseDateFirst ()
 894                 {
 895                         // Standard patterns
 896                         CultureInfo USCultureInfo = new CultureInfo("en-US");
 897                         DateTime t1 = DateTime.Parse ("02/25/2002", USCultureInfo);
 898                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A1");
 899                         t1 = DateTime.Parse ("2002-02-25", USCultureInfo);
 900                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A2");
 901                         t1 = DateTime.Parse ("Monday, 25 February 2002");
 902                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A3");
 903                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25");
 904                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A4");
 905                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25:13");
 906                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A5");
 907                         t1 = DateTime.Parse ("02/25/2002 05:25", USCultureInfo);
 908                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A6");
 909                         t1 = DateTime.Parse ("02/25/2002 05:25:13", USCultureInfo);
 910                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A7");
 911                         t1 = DateTime.Parse ("2002-02-25 04:25:13Z");
 912                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
 913                         Assert.AreEqual (2002, t1.Year, "#A8");
 914                         Assert.AreEqual (02, t1.Month, "#A9");
 915                         Assert.AreEqual (25, t1.Day, "#A10");
 916                         Assert.AreEqual (04, t1.Hour, "#A11");
 917                         Assert.AreEqual (25, t1.Minute, "#A12");
 918                         Assert.AreEqual (13, t1.Second, "#A13");
 919                         t1 = DateTime.Parse ("Mon,02/25/2002", USCultureInfo);
 920                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A14");
 921                         DateTime t2 = new DateTime (1999, 1, 2, 0, 3, 4);
 922                         t1 = DateTime.Parse (t2.ToLongTimeString ());
 923                         Assert.AreEqual (0, t1.Hour, "#A14");
 924
 925                         // parsed as UTC string
 926                         t1 = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT");
 927                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime (t1);
 928                         Assert.AreEqual (2002, t1.Year, "#C1");
 929                         Assert.AreEqual (02, t1.Month, "#C2");
 930                         Assert.AreEqual (25, t1.Day, "#C3");
 931                         Assert.AreEqual (4, t1.Hour, "#C4");
 932                         Assert.AreEqual (25, t1.Minute, "#C5");
 933                         Assert.AreEqual (13, t1.Second, "#C6");
 934
 935                         // Some date 'T' time formats
 936                         t1 = DateTime.Parse ("2002-02-25T05:25");
 937                         Assert.AreEqual (myTicks [3], t1.Ticks, "#D1");
 938
 939                         t1 = DateTime.Parse ("2002-02-25T05:25:13");
 940                         Assert.AreEqual (myTicks [4], t1.Ticks, "#D1");
 941                         t1 = DateTime.Parse ("2002-02-25T05:25:13.008");
 942                         Assert.AreEqual (myTicks [2], t1.Ticks, "#D1");
 943                         t1 = DateTime.Parse ("02-2002-25T05:25:13");
 944                         Assert.AreEqual (myTicks [4], t1.Ticks, "#D1");
 945
 946                         // Day month
 947                         t2 = new DateTime (DateTime.Today.Year, 2, 25);
 948                         t1 = DateTime.Parse ("February 25", USCultureInfo);
 949                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B1");
 950
 951                         t2 = new DateTime (DateTime.Today.Year, 2, 8);
 952                         t1 = DateTime.Parse ("February 08", USCultureInfo);
 953                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B2");
 954
 955                         t2 = new DateTime (DateTime.Today.Year, 2, 8);
 956                         t1 = DateTime.Parse ("February 8", USCultureInfo);
 957                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D6");
 958
 959                         // Month year
 960                         t2 = new DateTime (2002, 2, 1);
 961                         t1 = DateTime.Parse ("2002 February");
 962                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D4");
 963
 964                         t2 = new DateTime (2002, 2, 1);
 965                         t1 = DateTime.Parse ("2002 February", new CultureInfo ("ja-JP"));
 966                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D5");
 967
 968                         // bug #72132
 969                         t2 = new DateTime (2002, 2, 25, 5, 25, 22);
 970                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25:22",
 971                                 new CultureInfo ("hi-IN"));
 972                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D7");
 973                         t2 = new DateTime (2002, 2, 25, 5, 25, 0);
 974                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25",
 975                                 new CultureInfo ("hi-IN"));
 976                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D8");
 977
 978                         // MM-yyyy-dd + different time formats
 979                         t1 = DateTime.Parse ("02-2002-25 05:25", USCultureInfo);
 980                         Assert.AreEqual (myTicks[3], t1.Ticks, "#E1");
 981                         t1 = DateTime.Parse ("02-2002-25 05:25:13", USCultureInfo);
 982                         Assert.AreEqual (myTicks[4], t1.Ticks, "#E1");
 983                         t1 = DateTime.Parse ("02-2002-25 05:25:13 Mon", USCultureInfo);
 984                         Assert.AreEqual (myTicks[4], t1.Ticks, "#E2");
 985                         t1 = DateTime.Parse ("02-2002-25 05:25:13 Monday", USCultureInfo);
 986                         Assert.AreEqual (myTicks[4], t1.Ticks, "#E3");
 987                         t1 = DateTime.Parse ("02-2002-25 05:25:13.008", USCultureInfo);
 988                         Assert.AreEqual (myTicks[2], t1.Ticks, "#E4");
 989
 990                         // Formats with timezone
 991                         long offset = TimeZone.CurrentTimeZone.GetUtcOffset(t1).Ticks;
 992                         long hourTicks = 36000000000L;
 993                         long halfHourTicks = hourTicks / 2;
 994                         t1 = DateTime.Parse ("02-2002-25 05:25+01", USCultureInfo);
 995                         Assert.AreEqual (myTicks[3], t1.Ticks + hourTicks - offset, "#F1");
 996                         t1 = DateTime.Parse ("02-2002-25 05:25-01", USCultureInfo);
 997                         Assert.AreEqual (myTicks[3], t1.Ticks - hourTicks - offset, "#F2");
 998                         t1 = DateTime.Parse ("02-2002-25 05:25+00:30", USCultureInfo);
 999                         Assert.AreEqual (myTicks[3], t1.Ticks + hourTicks/2 - offset, "#F3");
1000                         t1 = DateTime.Parse ("02-2002-25 05:25:13+02", USCultureInfo);
1001                         Assert.AreEqual (myTicks[4], t1.Ticks + 2*hourTicks - offset, "#F4");
1002
1003                         // NET 1.0 doesn't accept second fractions and time zone.
1004                         t1 = DateTime.Parse ("2002-02-25 05:25:13.008-02");
1005                         Assert.AreEqual (myTicks[2], t1.Ticks - 2*hourTicks - offset, "#F5");
1006                         // NET 1.0 doesn't parse well time zone with AM afterwards.
1007                         t1 = DateTime.Parse ("02-25-2002 05:25:13-02 AM", USCultureInfo);
1008                         Assert.AreEqual (myTicks[4], t1.Ticks - 2*hourTicks - offset, "#F6");
1009                         t1 = DateTime.Parse ("25 Feb 2002 05:25:13-02 AM", USCultureInfo);
1010                         Assert.AreEqual (myTicks[4], t1.Ticks - 2*hourTicks - offset, "#F6");
1011                 }
1012
1013                 [Test]
1014                 public void TestParseTimeFirst ()
1015                 {
1016                         CultureInfo USCultureInfo = new CultureInfo("en-US");
1017
1018                         // Hour only patterns
1019                         DateTime t2 = DateTime.Today + new TimeSpan (5,25,0);
1020                         DateTime t1 = DateTime.Parse ("05:25");
1021                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#C1");
1022                         t2 = DateTime.Today + new TimeSpan (5,25,13);
1023                         t1 = DateTime.Parse ("05:25:13");
1024                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B2");
1025
1026                         // Test with different date formats
1027                         t1 = DateTime.Parse ("05:25 02/25/2002", USCultureInfo);
1028                         Assert.AreEqual (myTicks[3], t1.Ticks, "#B1");
1029                         t1 = DateTime.Parse ("05:25:13 2002-02-25");
1030                         Assert.AreEqual (myTicks[4], t1.Ticks, "#B2");
1031                         t1 = DateTime.Parse ("05:25:13.008 02-2002-25");
1032                         Assert.AreEqual (myTicks[2], t1.Ticks, "#B3");
1033                         t1 = DateTime.Parse ("05:25:13.008 Feb 25 2002");
1034                         Assert.AreEqual (myTicks[2], t1.Ticks, "#B4");
1035                         t1 = DateTime.Parse ("05:25:13.008 25 Feb 2002");
1036                         Assert.AreEqual (myTicks[2], t1.Ticks, "#B5");
1037
1038                         // Add AM and day of the week
1039                         t1 = DateTime.Parse ("AM 05:25:13 2002-02-25");
1040                         Assert.AreEqual (myTicks[4], t1.Ticks, "#C1");
1041                         t1 = DateTime.Parse ("Monday05:25 02/25/2002", USCultureInfo);
1042                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C2");
1043                         t1 = DateTime.Parse ("Mon 05:25 AM 02/25/2002", USCultureInfo);
1044                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C3");
1045                         t1 = DateTime.Parse ("AM 05:25 Monday, 02/25/2002", USCultureInfo);
1046                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C4");
1047                         t1 = DateTime.Parse ("05:25 02/25/2002 Monday", USCultureInfo);
1048                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C5");
1049                         t1 = DateTime.Parse ("PM 03:25:13.008 02-2002-25");
1050                         Assert.AreEqual (myTicks[1], t1.Ticks, "#C6");
1051
1052                         // ASP.NET QuickStarts
1053                         t2 = new DateTime (2002, 10, 7, 15, 6, 0);
1054                         t1 = DateTime.Parse ("3:06 PM 10/7/2002", USCultureInfo);
1055                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D1");
1056                         t2 = new DateTime (2002, 10, 7, 15, 6, 0);
1057                         t1 = DateTime.Parse ("3:06 pm 10/7/2002", USCultureInfo);
1058                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D2");
1059                         t2 = new DateTime (2002, 10, 7, 3, 6, 0);
1060                         t1 = DateTime.Parse ("3:06 AM 10/7/2002", USCultureInfo);
1061                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D3");
1062                         t2 = new DateTime (2002, 10, 7, 3, 6, 0);
1063                         t1 = DateTime.Parse ("3:06 am 10/7/2002", USCultureInfo);
1064                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D4");
1065                 }
1066
1067                 [Test]
1068                 public void TestParseWithDifferentShortDatePatterns ()
1069                 {
1070                         CultureInfo cultureInfo = new CultureInfo("en-US");
1071                         DateTimeFormatInfo dateFormatInfo = cultureInfo.DateTimeFormat;
1072                         DateTime t1 = DateTime.Parse ("02/01/2003", cultureInfo);
1073                         Assert.AreEqual (myTicks[7], t1.Ticks, "#A1");
1074
1075                         // Day, month year behaviour
1076                         dateFormatInfo.ShortDatePattern = "dd/MM/yyyy";
1077                         t1 = DateTime.Parse ("01/02/03", cultureInfo);
1078                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B1");
1079                         t1 = DateTime.Parse ("01/02/2003", cultureInfo);
1080                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B2");
1081                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1082                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B3");
1083                         t1 = DateTime.Parse ("01/Feb/03", cultureInfo);
1084                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B4");
1085                         t1 = DateTime.Parse ("Feb/01/03", cultureInfo);
1086                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B5");
1087
1088                         // Month, day year behaviour
1089                         dateFormatInfo.ShortDatePattern = "MM/dd/yyyy";
1090                         t1 = DateTime.Parse ("02/01/03", cultureInfo);
1091                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C1");
1092                         t1 = DateTime.Parse ("02/01/2003", cultureInfo);
1093                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C2");
1094                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1095                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C3");
1096                         t1 = DateTime.Parse ("01/Feb/03", cultureInfo);
1097                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C4");
1098                         t1 = DateTime.Parse ("Feb/01/03", cultureInfo);
1099                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C5");
1100
1101                         // Year, month day behaviour
1102                         dateFormatInfo.ShortDatePattern = "yyyy/MM/dd";
1103                         t1 = DateTime.Parse ("03/02/01", cultureInfo);
1104                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D1");
1105                         t1 = DateTime.Parse ("02/01/2003", cultureInfo);
1106                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D2");
1107                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1108                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D3");
1109                         t1 = DateTime.Parse ("03/Feb/01", cultureInfo);
1110                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D4");
1111                         t1 = DateTime.Parse ("Feb/03/01", cultureInfo);
1112                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D5");
1113
1114                         // Year, day month behaviour
1115                         // Note that no culture I am aware of has this pattern, and indeed
1116                         dateFormatInfo.ShortDatePattern = "yyyy/dd/MM";
1117                         t1 = DateTime.Parse ("03/01/02", cultureInfo);
1118                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E1");
1119                         t1 = DateTime.Parse ("01/02/2003", cultureInfo);
1120                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E2");
1121
1122                         t1 = DateTime.Parse ("2003/01/02", cultureInfo);
1123                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E3");
1124
1125                         // For some reason the following throws an exception on .Net
1126                         // t1 = DateTime.Parse ("03/Feb/01", cultureInfo);
1127                         // Assert.AreEqual (myTicks[7], t1.Ticks, "#E4");
1128                         // t1 = DateTime.Parse ("03/01/Feb", cultureInfo);
1129                         // Assert.AreEqual (myTicks[7], t1.Ticks, "#E5");
1130                         // t1 = DateTime.Parse ("Feb/01/03", cultureInfo);
1131                         // Assert.AreEqual (myTicks[7], t1.Ticks, "#E6");
1132                 }
1133
1134                 [Test]
1135                 public void TestParseWithDifferentMonthDayPatterns ()
1136                 {
1137                         CultureInfo cultureInfo = new CultureInfo("en-US");
1138                         DateTimeFormatInfo dateFormatInfo = cultureInfo.DateTimeFormat;
1139                         DateTime t1 = DateTime.Parse ("Feb 03", cultureInfo);
1140                         Assert.AreEqual (2, t1.Month, "#A1");
1141                         Assert.AreEqual (3, t1.Day, "#A2");
1142
1143                         // Day month behaviour
1144                         dateFormatInfo.MonthDayPattern = "dd/MM";
1145
1146                         t1 = DateTime.Parse ("Feb 03", cultureInfo);
1147                         Assert.AreEqual (2, t1.Month, "#B1");
1148                         Assert.AreEqual (1, t1.Day, "#B2");
1149                         Assert.AreEqual (2003, t1.Year, "#B3");
1150
1151                         t1 = DateTime.Parse ("03/02", cultureInfo);
1152                         Assert.AreEqual (2, t1.Month, "#B6");
1153                         Assert.AreEqual (3, t1.Day, "#B7");
1154                         t1 = DateTime.Parse ("03 Feb", cultureInfo);
1155                         Assert.AreEqual (2, t1.Month, "#B8");
1156                         Assert.AreEqual (3, t1.Day, "#B9");
1157
1158                         // Month day behaviour
1159                         dateFormatInfo.MonthDayPattern = "MM/dd";
1160                         t1 = DateTime.Parse ("Feb 03", cultureInfo);
1161                         Assert.AreEqual (2, t1.Month, "#C1");
1162                         Assert.AreEqual (3, t1.Day, "#C2");
1163                         t1 = DateTime.Parse ("02/03", cultureInfo);
1164                         Assert.AreEqual (2, t1.Month, "#C3");
1165                         Assert.AreEqual (3, t1.Day, "#C4");
1166                         t1 = DateTime.Parse ("03 Feb", cultureInfo);
1167                         Assert.AreEqual (2, t1.Month, "#C5");
1168                         Assert.AreEqual (3, t1.Day, "#C6");
1169                 }
1170
1171                 [Test]
1172                 public void TestParse3 ()
1173                 {
1174                         string s = "Wednesday, 09 June 2004";
1175                         DateTime.ParseExact (s, "dddd, dd MMMM yyyy", CultureInfo.InvariantCulture);
1176                         try {
1177                                 DateTime.ParseExact (s, "dddd, dd MMMM yyyy", new CultureInfo ("ja-JP"));
1178                                 Assert.Fail ("ja-JP culture does not support format \"dddd, dd MMMM yyyy\"");
1179                         } catch (FormatException) {
1180                         }
1181
1182                         // Ok, now we can assume ParseExact() works expectedly.
1183
1184                         DateTime.Parse (s, CultureInfo.InvariantCulture, DateTimeStyles.AllowWhiteSpaces);
1185                         DateTime.Parse (s, new CultureInfo ("ja-JP"), DateTimeStyles.AllowWhiteSpaces);
1186                         //DateTime.Parse (s, null); currently am not sure if it works for _every_ culture.
1187                 }
1188
1189
1190                 [Test] // bug #74936
1191                 public void TestParse4 ()
1192                 {
1193                         try {
1194                                 DateTime.Parse("1");
1195                                 Assert.Fail ("#1");
1196                         } catch (FormatException) {
1197                         }
1198
1199                         try {
1200                                 DateTime.Parse("1000");
1201                                 Assert.Fail ("#2");
1202                         } catch (FormatException) {
1203                         }
1204
1205                         try {
1206                                 DateTime.Parse("8:");
1207                                 Assert.Fail ("#3");
1208                         } catch (FormatException) {
1209                         }
1210                 }
1211
1212                 [Test] // bug #71289
1213                 public void Parse_Bug71289a ()
1214                 {
1215                         DateTime.Parse ("Sat,,,,,, 01 Oct 1994 03:00:00", CultureInfo.InvariantCulture);
1216                 }
1217
1218                 [Test]
1219                 public void Parse_Bug71289b ()
1220                 {
1221                         // more example...
1222                         DateTime.Parse ("Sat,,, 01,,, Oct,,, ,,,1994 03:00:00", CultureInfo.InvariantCulture);
1223                 }
1224
1225                 [Test]
1226                 public void TryParse_Bug11630 ()
1227                 {
1228                         DateTime parsed;
1229
1230                         Assert.IsTrue (DateTime.TryParse ("10Feb2013", out parsed));
1231                         Assert.AreEqual (new DateTime (2013, 2, 10), parsed);
1232                 }
1233
1234                 [Test]
1235                 [ExpectedException (typeof (FormatException))]
1236                 public void Parse_CommaAfterHours ()
1237                 {
1238                         // ',' after 03 is not allowed.
1239                         DateTime.Parse ("Sat,,, 01,,, Oct,,, ,,,1994 03,:00:00", CultureInfo.InvariantCulture);
1240                 }
1241
1242                 [Test] // bug #72788
1243                 public void Parse_Bug72788 ()
1244                 {
1245                         DateTime dt = DateTime.Parse ("21/02/05", new CultureInfo ("fr-FR"));
1246                         Assert.AreEqual (2005, dt.Year, "#1");
1247                         Assert.AreEqual (02, dt.Month, "#2");
1248                         Assert.AreEqual (21, dt.Day, "#3");
1249                 }
1250
1251                 [Test] // bug #322510
1252                 public void Parse_HourDesignator ()
1253                 {
1254                         DateTime dt;
1255                         DateTime now = DateTime.Now;
1256
1257                         dt = DateTime.Parse ("12:00:00 AM", new CultureInfo ("en-US"));
1258                         Assert.AreEqual (now.Year, dt.Year, "#A1");
1259                         Assert.AreEqual (now.Month, dt.Month, "#A2");
1260                         Assert.AreEqual (now.Day, dt.Day, "#A3");
1261                         Assert.AreEqual (0, dt.Hour, "#A4");
1262                         Assert.AreEqual (0, dt.Minute, "#A5");
1263                         Assert.AreEqual (0, dt.Second, "#A6");
1264                         Assert.AreEqual (0, dt.Millisecond, "#A7");
1265
1266                         dt = DateTime.Parse ("12:00:00 PM", new CultureInfo ("en-US"));
1267                         Assert.AreEqual (now.Year, dt.Year, "#B1");
1268                         Assert.AreEqual (now.Month, dt.Month, "#B2");
1269                         Assert.AreEqual (now.Day, dt.Day, "#B3");
1270                         Assert.AreEqual (12, dt.Hour, "#B4");
1271                         Assert.AreEqual (0, dt.Minute, "#B5");
1272                         Assert.AreEqual (0, dt.Second, "#B6");
1273                         Assert.AreEqual (0, dt.Millisecond, "#B7");
1274                 }
1275
1276                 [Test]
1277                 public void Parse_Bug53023b ()
1278                 {
1279                         foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.SpecificCultures)) {
1280                                 if (ci.Name == "ar-SA")
1281                                         continue;
1282
1283                                 try {
1284                                         DateTime.Parse ("01-Sep-05", ci);
1285
1286                                         // FIXME: Our UmAlQuraCalendar/HijriCalendar calendars support month days - 1 only (fail on last day in month)
1287                                         if (ci.Calendar is UmAlQuraCalendar || ci.Calendar is HijriCalendar)
1288                                                 continue;
1289
1290                                         DateTime.Parse ("4:35:35 AM", ci);
1291                                 } catch {
1292                                         Assert.Fail (ci.Name);
1293                                 }
1294                         }
1295                 }
1296
1297                 [Test]
1298                 [ExpectedException (typeof (FormatException))]
1299                 public void Parse_RequireSpaceSeparator ()
1300                 {
1301                         DateTime.Parse ("05:25:132002-02-25", CultureInfo.InvariantCulture);
1302                 }
1303
1304                 [Test]
1305                 [ExpectedException (typeof (FormatException))]
1306                 public void Parse_DontAccept2DigitsYears ()
1307                 {
1308                         // don't allow 2 digit years where we require 4.
1309                         DateTime.ParseExact ("05", "yyyy", CultureInfo.InvariantCulture);
1310                 }
1311
1312                 [Test]
1313                 [ExpectedException (typeof (FormatException))]
1314                 public void Parse_DontAcceptEmptyHours ()
1315                 {
1316                         DateTime.ParseExact (":05", "H:m", CultureInfo.InvariantCulture);
1317                 }
1318
1319                 [Test]
1320                 [ExpectedException (typeof (FormatException))]
1321                 public void Parse_DontAcceptEmptyMinutes ()
1322                 {
1323                         DateTime.ParseExact ("0::0", "H:m:s", CultureInfo.InvariantCulture);
1324                 }
1325
1326                 [Test]
1327                 public void ParseCOMDependentFormat ()
1328                 {
1329                         // Japanese format.
1330                         DateTime.Parse (String.Format (
1331                                 "{0}\u5E74{1}\u6708{2}\u65E5 {3}\u6642{4}\u5206{5}\u79D2",
1332                                 2006, 3, 1, 15, 32, 42), new CultureInfo (""));
1333
1334                         try {
1335                                 // incorrect year mark.
1336                                 DateTime.Parse (String.Format (
1337                                         "{0}\u4E00{1}\u6708{2}\u65E5 {3}\u6642{4}\u5206{5}\u79D2",
1338                                         2006, 3, 1, 15, 32, 42), new CultureInfo (""));
1339                                 Assert.Fail ();
1340                         } catch (FormatException) {
1341                         }
1342                 }
1343
1344                 [Test]
1345                 [ExpectedException(typeof (FormatException))]
1346                 public void ParseFormatException1 ()
1347                 {
1348                         // Following string is not a correct French date i.e.
1349                         // MM/dd/yyyy HH:mm:ss since it expects d/M/yyyy HH:mm:ss
1350                         // instead (however fr-FR accepts both MM/dd/yyyy and
1351                         // dd/MM/yyyy, which means that we can't just throw exceptions
1352                         // on overflow).
1353                         String frDateTime = "11/13/2003 11:28:15";
1354                         IFormatProvider format = new CultureInfo("fr-FR", true);
1355                         DateTime t1 = DateTime.Parse(frDateTime, format);
1356                 }
1357
1358                 [Test]
1359                 [ExpectedException(typeof (FormatException))]
1360                 public void ParseFormatExceptionForInvalidYear ()
1361                 {
1362                         // Bug #77633.  In .NET 1..1, the expected exception is ArgumentOutOfRangeException
1363                         // In .NET 2.0, the expected exception is FormatException
1364                         // build a string with the year of 5 digits
1365                         string s = "1/1/10000";
1366                         DateTime dt = DateTime.Parse (s);
1367                 }
1368
1369                 [Test]
1370                 public void TestOA ()
1371                 {
1372                         double number=5000.41443;
1373                         DateTime d = DateTime.FromOADate(number);
1374                         DTAssertEquals (d, new DateTime(1913, 9, 8, 9, 56, 46, 0), Resolution.Second, "#1");
1375                         Assert.AreEqual (d.ToOADate(), number, "#2");
1376                 }
1377
1378                 [Test]
1379                 public void ParseAllowsQueerString ()
1380                 {
1381                         DateTime.Parse ("Sat,,,,,, 01 Oct 1994 03:00:00", CultureInfo.InvariantCulture);
1382                 }
1383
1384                 [Test]
1385                 public void ParseUtcNonUtc ()
1386                 {
1387                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("es-ES");
1388
1389                         CultureInfo ci;
1390                         string s, s2, s3, d;
1391                         DateTime dt;
1392                         DateTimeFormatInfo dfi = DateTimeFormatInfo.InvariantInfo;
1393                         s = dfi.UniversalSortableDateTimePattern;
1394                         s2 = "r";
1395
1396                         s3 = "s";
1397
1398                         long tick1 = 631789220960000000; // 2003-01-23 12:34:56 as is
1399                         long tick2 = TimeZone.CurrentTimeZone.ToLocalTime (new DateTime (tick1)).Ticks; // adjusted to local time
1400
1401                         // invariant
1402                         ci = CultureInfo.InvariantCulture;
1403
1404                         d = "2003/01/23 12:34:56";
1405                         dt = DateTime.Parse (d, ci);
1406                         Assert.AreEqual (tick1, dt.Ticks, "#1:" + d);
1407
1408                         d = "2003/01/23 12:34:56 GMT";
1409                         dt = DateTime.Parse (d, ci);
1410                         Assert.AreEqual (tick2, dt.Ticks, "#2:" + d);
1411
1412                         d = "Thu, 23 Jan 2003 12:34:56 GMT";
1413                         dt = DateTime.ParseExact (d, s2, ci);
1414                         Assert.AreEqual (tick1, dt.Ticks, "#3:" + d);
1415
1416                         d = "2003-01-23 12:34:56Z";
1417                         dt = DateTime.ParseExact (d, s, ci);
1418                         Assert.AreEqual (tick1, dt.Ticks, "#4:" + d);
1419
1420                         d = "2003-01-23T12:34:56";
1421                         dt = DateTime.ParseExact (d, s3, ci);
1422                         Assert.AreEqual (tick1, dt.Ticks, "#5:" + d);
1423
1424                         // ja-JP ... it should be culture independent
1425                         ci = new CultureInfo ("ja-JP");
1426
1427                         d = "2003/01/23 12:34:56";
1428                         dt = DateTime.Parse (d, ci);
1429                         Assert.AreEqual (tick1, dt.Ticks, "#6:" + d);
1430
1431                         d = "2003/01/23 12:34:56 GMT";
1432                         dt = DateTime.Parse (d, ci);
1433                         Assert.AreEqual (tick2, dt.Ticks, "#7:" + d);
1434
1435                         d = "Thu, 23 Jan 2003 12:34:56 GMT";
1436                         dt = DateTime.ParseExact (d, s2, ci);
1437                         Assert.AreEqual (tick1, dt.Ticks, "#8:" + d);
1438
1439                         d = "2003-01-23 12:34:56Z";
1440                         dt = DateTime.ParseExact (d, s, ci);
1441                         Assert.AreEqual (tick1, dt.Ticks, "#9:" + d);
1442
1443                         d = "2003-01-23T12:34:56";
1444                         dt = DateTime.ParseExact (d, s3, ci);
1445                         Assert.AreEqual (tick1, dt.Ticks, "#10:" + d);
1446                 }
1447
1448                 [Test]
1449                 public void TimeZoneAdjustment ()
1450                 {
1451                         CultureInfo ci = Thread.CurrentThread.CurrentCulture;
1452                         try {
1453                                 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US");
1454                                 DateTime d1 = DateTime.ParseExact ("2004/06/30", "yyyy/MM/dd", null);
1455                                 DateTime d2 = DateTime.ParseExact ("2004/06/30Z", "yyyy/MM/dd'Z'", null);
1456                                 DateTime d3 = DateTime.ParseExact ("Wed, 30 Jun 2004 00:00:00 GMT", "ddd, dd MMM yyyy HH':'mm':'ss 'GMT'", null);
1457                                 DateTime d4 = DateTime.ParseExact ("2004-06-30 00:00:00Z", "yyyy'-'MM'-'dd HH':'mm':'ss'Z'", null);
1458                                 StringWriter sw = new StringWriter ();
1459                                 sw.Write ("{0} {1}", d1.Ticks, d1);
1460                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#1");
1461                                 sw.GetStringBuilder ().Length = 0;
1462                                 sw.Write ("{0} {1}", d2.Ticks, d2);
1463                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#2");
1464                                 sw.GetStringBuilder ().Length = 0;
1465                                 sw.Write ("{0} {1}", d3.Ticks, d3);
1466                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#3");
1467                                 sw.GetStringBuilder ().Length = 0;
1468                                 sw.Write ("{0} {1}", d4.Ticks, d4);
1469                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#4");
1470                         } finally {
1471                                 Thread.CurrentThread.CurrentCulture = ci;
1472                         }
1473
1474                         // bug #76082
1475                         Assert.AreEqual (DateTime.MinValue, DateTime.ParseExact ("00010101T00:00:00",
1476                                         "yyyyMMdd'T'HH':'mm':'ss", DateTimeFormatInfo.InvariantInfo), "#5");
1477                 }
1478
1479                 [Test]
1480                 public void DateTimeStylesAdjustToUniversal ()
1481                 {
1482                         // bug #75995 : AdjustToUniversal
1483                         DateTime t1 = DateTime.Parse ("2005-09-05T22:29:00Z",
1484                                 CultureInfo.InvariantCulture,
1485                                 DateTimeStyles.AdjustToUniversal);
1486                         Assert.AreEqual ("2005-09-05 22:29:00Z", t1.ToString ("u"));
1487                 }
1488
1489                 [Test]
1490                 [ExpectedException (typeof (ArgumentException))]
1491                 public void FromOADate_Min ()
1492                 {
1493                         // minimum documented value isn't inclusive
1494                         DateTime.FromOADate (-657435.0d);
1495                 }
1496
1497                 [Test]
1498                 [ExpectedException (typeof (ArgumentException))]
1499                 public void FromOADate_Max ()
1500                 {
1501                         // maximum documented value isn't inclusive
1502                         DateTime.FromOADate (2958466.0d);
1503                 }
1504
1505                 [Test]
1506                 public void FromOADate ()
1507                 {
1508                         // Note: OA (OLE Automation) dates aren't timezone sensitive
1509                         Assert.AreEqual (599264352000000000, DateTime.FromOADate (0.0d).Ticks, "#1");
1510                         Assert.AreEqual (31242239136000000, DateTime.FromOADate (-657434.999d).Ticks, "#2");
1511                         Assert.AreEqual (3155378975136000000, DateTime.FromOADate (2958465.999d).Ticks, "#3");
1512                 }
1513
1514                 [Test]
1515                 public void ToOADate ()
1516                 {
1517                         // Note: OA (OLE Automation) dates aren't timezone sensitive
1518                         DateTime d = new DateTime (0);
1519                         Assert.AreEqual (0.0d, d.ToOADate (), "#1");
1520                         d = new DateTime (599264352000000000);
1521                         Assert.AreEqual (0.0d, d.ToOADate (), "#2");
1522                         d = new DateTime (31242239136000000);
1523                         Assert.AreEqual ("-657434.999", d.ToOADate ().ToString (), "#3");
1524                         d = new DateTime (3155378975136000000);
1525                         Assert.AreEqual (2958465.999d, d.ToOADate (), "#4");
1526                 }
1527
1528                 [Test]
1529                 public void ToOADate_OverMax ()
1530                 {
1531                         DateTime d = new DateTime (3155378975136000001);
1532                         Assert.AreEqual (2958465.999d, d.ToOADate ());
1533                 }
1534
1535                 [Test]
1536                 public void ToOADate_UnderMin ()
1537                 {
1538                         DateTime d = new DateTime (31242239135999999);
1539                         Assert.AreEqual (-657434.999d, d.ToOADate ());
1540                 }
1541
1542                 [Test]
1543                 public void ToOADate_MinValue ()
1544                 {
1545                         Assert.AreEqual (0, DateTime.MinValue.ToOADate ());
1546                 }
1547
1548                 [Test] // bug52075
1549                 public void MaxValueYear ()
1550                 {
1551                         Assert.AreEqual ("9999", DateTime.MaxValue.Year.ToString ());
1552                 }
1553
1554                 [Test]
1555                 public void X509Certificate ()
1556                 {
1557                         // if this test fails then *ALL* or *MOST* X509Certificate tests will also fails
1558                         DateTime dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null);
1559                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "#1");
1560                         dt = dt.ToUniversalTime ();
1561                         Assert.AreEqual (DateTimeKind.Utc, dt.Kind, "#2");
1562                         Assert.AreEqual ("03/12/1996 18:38:47", dt.ToString (), "#3");
1563
1564                         // technically this is invalid (PKIX) because of the missing seconds but it exists so...
1565                         dt = DateTime.ParseExact ("9602231915Z", "yyMMddHHmmZ", null);
1566                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "#4");
1567                         dt = dt.ToUniversalTime ();
1568                         Assert.AreEqual (DateTimeKind.Utc, dt.Kind, "#5");
1569                         Assert.AreEqual ("02/23/1996 19:15:00", dt.ToString (), "#6");
1570
1571                         dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null, DateTimeStyles.AdjustToUniversal);
1572                         Assert.AreEqual (DateTimeKind.Utc, dt.Kind, "#7");
1573                 }
1574
1575                 [Test]
1576                 public void ZLiteral ()
1577                 {
1578                         // However, "Z" and "'Z'" are different.
1579                         DateTime dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmss'Z'", null);
1580                         DateTime dtz = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null);
1581                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "#1");
1582                         dt = dt.ToLocalTime ();
1583                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "#2");
1584                         Assert.AreEqual (DateTimeKind.Local, dtz.Kind, "#3");
1585                         Assert.AreEqual (dt, dtz, "#4");
1586                 }
1587
1588                 [Test] // bug 56436
1589                 public void QuotedFormat ()
1590                 {
1591                         string date = "28/Mar/2004:19:12:37 +0200";
1592                         string [] expectedFormats = {"dd\"/\"MMM\"/\"yyyy:HH:mm:ss zz\"00\""};
1593                         DateTime.ParseExact (date, expectedFormats, null, DateTimeStyles.AllowWhiteSpaces);
1594                 }
1595
1596                 [Test]
1597                 public void CultureIndependentTests ()
1598                 {
1599                         // Here I aggregated some tests mainly because of test
1600                         // performance (iterating all the culture is heavy process).
1601
1602                         for (int i = 0; i < 32768; i++) {
1603                                 CultureInfo ci = null;
1604                                 string stage = "init";
1605                                 try {
1606                                         try {
1607                                                 ci = new CultureInfo (i);
1608                                                 // In fact InvatiantCulture is not neutral.
1609                                                 // See bug #59716.
1610                                                 if (ci.IsNeutralCulture && ci != CultureInfo.InvariantCulture)
1611                                                         continue;
1612                                         } catch (Exception) {
1613                                                 continue;
1614                                         }
1615                                         Thread.CurrentThread.CurrentCulture = ci;
1616                                         DateTime dt;
1617
1618                                         switch (ci.LCID) {
1619                                         case 1025: // ar-SA
1620                                         case 2559: // qps-plocm
1621                                                 continue; // fails too many tests below on .NET.
1622                                         }
1623
1624                                         // Common patterns
1625                                         // X509Certificate pattern is _always_ accepted.
1626                                         stage = "1";
1627                                         dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null);
1628
1629                                         stage = "2";
1630                                         // fails with many cultures on .NET.
1631         //                              if (i != 127)
1632         //                                      dt = DateTime.Parse ("19960312183847Z");
1633
1634                                         stage = "3";
1635                                         dt = DateTime.Parse ("2004-05-26T03:29:01.1234567");
1636                                         stage = "4";
1637                                         dt = DateTime.Parse ("2004-05-26T03:29:01.1234567-07:00");
1638
1639                                         // memo: the least LCID is 127, and then 1025(ar-SA)
1640
1641                                         // "th-TH" locale rejects them since in
1642                                         // ThaiBuddhistCalendar the week of a day is different.
1643                                         // (and also for years).
1644                                         switch (ci.LCID) {
1645                                         case 1054:
1646                                         case 1128: // ha-Latn-NG
1647                                                 break;
1648                                         default:
1649                                                 try {
1650                                                         stage = "5";
1651                                                         dt = DateTime.Parse ("Sat, 29 Oct 1994 12:00:00 GMT", ci);
1652                                                 } catch (FormatException ex) {
1653                                                         Assert.Fail (String.Format ("stage 5.1 RFC1123: culture {0} {1} failed: {2}", i, ci, ex.Message));
1654                                                 }
1655
1656                                                 // bug #47720
1657                                                 if (dt != TimeZone.CurrentTimeZone.ToUniversalTime (dt))
1658                                                         Assert.IsTrue (12 != dt.Hour, String.Format ("bug #47720 on culture {0} {1}", ci.LCID, ci));
1659
1660                                                 // variant of RFC1123
1661                                                 try {
1662                                                         stage = "6";
1663                                                         dt = DateTime.Parse ("Sat, 1 Oct 1994 03:00:00", ci);
1664                                                 } catch (FormatException ex) {
1665                                                         Assert.Fail (String.Format ("stage 6.1 RFC1123 variant: culture {0} {1} failed: {2}", i, ci, ex.Message));
1666                                                 }
1667                                                 stage = "7";
1668                                                 Assert.AreEqual (3, dt.Hour, String.Format ("stage 7.1 RFC1123 variant on culture {0} {1}", ci.LCID, ci));
1669                                                 break;
1670                                         }
1671
1672                                         switch (ci.LCID) {
1673                                         case 1054: // th-TH
1674                                         case 1123: // ps-AF
1675                                         case 1125: // div-MV
1676                                         case 1164: // prs-AF
1677                                                 break;
1678                                         default:
1679                                                 stage = "8";
1680                                                 // 02/25/2002 04:25:13 as is
1681                                                 long tick1 = 631502079130000000;
1682                                                 long tick2 = TimeZone.CurrentTimeZone.ToLocalTime (new DateTime (tick1)).Ticks; // adjusted to local time
1683                                                 dt = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT", ci);
1684                                                 Assert.AreEqual (tick2, dt.Ticks, String.Format ("GMT variant. culture={0} {1}", i, ci));
1685                                                 break;
1686                                         }
1687
1688
1689                                         // ka-GE rejects these formats under MS.NET.
1690                                         // I wonder why. Also, those tests fail under .NET 1.0.
1691                                         if (ci.LCID != 1079) {
1692                                                 stage = "9";
1693                                                 dt = DateTime.Parse ("2002-02-25");
1694                                                 stage = "10";
1695                                                 dt = DateTime.Parse ("2002-02-25Z");
1696                                                 stage = "11";
1697                                                 dt = DateTime.Parse ("2002-02-25T19:20:00+09:00");
1698                                                 switch (ci.LCID) {
1699                                                 case 1038: // FIXME: MS passes this culture.
1700                                                 case 1062: // FIXME: MS passes this culture.
1701                                                 case 1078: // MS does not pass this culture. Dunno why.
1702                                                         break;
1703                                                 default:
1704                                                         break;
1705                                                 }
1706                                                 stage = "14";
1707                                                 dt = DateTime.Parse ("2002-02-25 12:01:03");
1708                                                 stage = "17";
1709                                                 if (ci.DateTimeFormat.TimeSeparator != ".")
1710                                                         dt = DateTime.Parse ("2002.02.25 12:01:03");
1711                                                 stage = "18";
1712                                                 dt = DateTime.Parse ("2003/01/23 01:34:56 GMT");
1713                                                 dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1714                                                 Assert.AreEqual (1, dt.Hour, String.Format ("stage 18.1 RFC1123 UTC {0} {1}", i, ci));
1715                                                 stage = "19";
1716                                                 // This test was fixed from 12:34:56 to
1717                                                 // 01:34:56 since 1078 af-ZA failed
1718                                                 // because of hour interpretation
1719                                                 // difference (af-ZA expects 0).
1720                                                 // (IMHO it is MS BUG though.)
1721                                                 dt = DateTime.Parse ("2003/01/23 12:34:56 GMT");
1722                                                 dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1723                                                 if (i != 1078)
1724                                                         Assert.AreEqual (12, dt.Hour, String.Format ("stage 18.1 RFC1123 UTC {0} {1}", i, ci));
1725                                         }
1726                                 } catch (FormatException ex) {
1727                                         Assert.Fail (String.Format ("stage {3}: Culture {0} {1} failed: {2}", i, ci, ex.Message, stage));
1728                                 }
1729                         }
1730                 }
1731
1732                 [Test]
1733                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1734                 public void ToFileTime_MinValue ()
1735                 {
1736                         DateTime.FromFileTime (Int64.MinValue);
1737                 }
1738
1739                 [Test]
1740                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1741                 public void ToFileTime_Negative ()
1742                 {
1743                         DateTime.FromFileTime (-1);
1744                 }
1745
1746                 [Test]
1747                 public void ToFileTime ()
1748                 {
1749                         long u = DateTime.FromFileTimeUtc (0).Ticks;
1750                         Assert.AreEqual (504911232000000000, u, "#A1");
1751                         long max = DateTime.MaxValue.Ticks - 504911232000000000; // w32file_epoch
1752                         Assert.AreEqual (3155378975999999999, DateTime.FromFileTimeUtc (max).Ticks, "#A2");
1753
1754                         long t = DateTime.FromFileTime (0).Ticks;
1755                         Assert.IsTrue (t > (u - TimeSpan.TicksPerDay), "#B1");
1756                         Assert.IsTrue (t < (u + TimeSpan.TicksPerDay), "#B2");
1757                 }
1758
1759                 [Test]
1760                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1761                 public void ToFileTimeUtc_MinValue ()
1762                 {
1763                         DateTime.FromFileTimeUtc (Int64.MinValue);
1764                 }
1765
1766                 [Test]
1767                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1768                 public void ToFileTimeUtc_Negative ()
1769                 {
1770                         DateTime.FromFileTimeUtc (-1);
1771                 }
1772
1773                 [Test]
1774                 public void ToFileTimeUtc ()
1775                 {
1776                         // Randomly generated time outside DST.
1777                         var utc = new DateTime (1993, 01, 28, 08, 49, 48, DateTimeKind.Utc);
1778                         var local = utc.ToLocalTime ();
1779                         var unspecified = new DateTime (1993, 01, 28, 08, 49, 48);
1780
1781                         Assert.AreEqual (DateTimeKind.Utc, utc.Kind);
1782                         Assert.AreEqual (DateTimeKind.Local, local.Kind);
1783                         Assert.AreEqual (DateTimeKind.Unspecified, unspecified.Kind);
1784
1785                         Assert.AreEqual (628638077880000000, utc.Ticks);
1786                         Console.WriteLine (local.Ticks - utc.Ticks);
1787
1788                         var offset = TimeZone.CurrentTimeZone.GetUtcOffset (local);
1789
1790                         var utcFt = utc.ToFileTime ();
1791                         var localFt = local.ToFileTime ();
1792                         var unspecifiedFt = unspecified.ToFileTime ();
1793
1794                         var utcUft = utc.ToFileTimeUtc ();
1795                         var localUft = local.ToFileTimeUtc ();
1796                         var unspecifiedUft = unspecified.ToFileTimeUtc ();
1797
1798                         Assert.AreEqual (123726845880000000, utcFt);
1799                         Assert.AreEqual (utcFt, localFt);
1800
1801                         Assert.AreEqual (offset.Ticks, utcFt - unspecifiedFt);
1802
1803                         Assert.AreEqual (utcFt, utcUft);
1804                         Assert.AreEqual (utcFt, localUft);
1805                         Assert.AreEqual (utcFt, unspecifiedUft);
1806                 }
1807
1808                 [Test]
1809                 public void FromFileTimeUtcTest ()
1810                 {
1811                         DateTime dt = DateTime.FromFileTimeUtc (123456);
1812                         Assert.AreEqual (dt.Kind, DateTimeKind.Utc, "#Kind");
1813                         Assert.AreEqual (dt.Ticks, 504911232000123456, "#Ticks");
1814                 }
1815
1816                 [Test]
1817                 public void Milliseconds ()
1818                 {
1819                         DateTime dt = DateTime.Parse ("2004-05-26T03:29:01.1234567-07:00");
1820                         dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1821                         Assert.AreEqual (632211641411234567, dt.Ticks);
1822                 }
1823
1824                 [Test]
1825                 [ExpectedException (typeof (FormatException))]
1826                 public void ParseNotExact ()
1827                 {
1828                         // The error reported is:
1829                         // String was not recognized as valid DateTime
1830                         DateTime dt = DateTime.Parse ("2004-05-26T03:29:01-07:00 foo");
1831                         dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1832                         Assert.AreEqual (632211641410000000, dt.Ticks);
1833                 }
1834
1835                 [Test]
1836                 public void ParseExact_Bug80094 ()
1837                 {
1838                         // we can safely change the curernt culture, as the original value will
1839                         // be restored on TearDown
1840                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("ja-JP");
1841                         string y = string.Format ("{0}-{1}-{2} {3}", DateTime.Now.Year.ToString (),
1842                                 "11", "29", "06:34");
1843                         DateTime date = DateTime.ParseExact (y, "yyyy-MMM-dd hh:mm", null);
1844                         Assert.AreEqual (DateTime.Now.Year, date.Year, "#1");
1845                         Assert.AreEqual (11, date.Month, "#2");
1846                         Assert.AreEqual (29, date.Day, "#3");
1847                         Assert.AreEqual (6, date.Hour, "#4");
1848                         Assert.AreEqual (34, date.Minute, "#5");
1849                         Assert.AreEqual (0, date.Second, "#6");
1850                         Assert.AreEqual (0, date.Millisecond, "#7");
1851                 }
1852
1853                 [Test]
1854                 public void ParseExact_Bug324845 ()
1855                 {
1856                         DateTime ctime = new DateTime (2007, 7, 23, 19, 19, 45);
1857                         ctime = ctime.ToUniversalTime ();
1858                         string instr = ctime.ToString ("yyyyMMddHHmmss");
1859
1860                         DateTime t = DateTime.ParseExact (instr, "yyyyMMddHHmmss", null, DateTimeStyles.AssumeUniversal);
1861                         Assert.AreEqual (2007, t.Year);
1862                         Assert.AreEqual (7, t.Month);
1863                         Assert.AreEqual (23, t.Day);
1864                         Assert.AreEqual (19, t.Hour);
1865                         Assert.AreEqual (19, t.Minute);
1866                         Assert.AreEqual (45, t.Second);
1867
1868                 }
1869
1870                 [Test]
1871                 [ExpectedException (typeof (FormatException))]
1872                 public void ParseExactIsExact()
1873                 {
1874                         DateTime.ParseExact ("2004-05-26T03:29:01-07:00 foo", "yyyy-MM-ddTHH:mm:sszzz", null);
1875                 }
1876
1877                 [Test]
1878                 [ExpectedException (typeof (FormatException))]
1879                 public void ParseExactDoesNotEatZ ()
1880                 {
1881                         DateTime.ParseExact ("2004-05-26T03:29:01", "yyyy-MM-ddTHH:mm:ssZ", null);
1882                 }
1883
1884                 [Test]
1885                 public void ParseExactMilliseconds ()
1886                 {
1887                         DateTime dt = DateTime.ParseExact ("2004-05-26T03:29:01.1234567-07:00", "yyyy-MM-ddTHH:mm:ss.fffffffzzz", null);
1888                         dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1889                         Assert.AreEqual (632211641411234567, dt.Ticks);
1890                 }
1891
1892                 [Test]
1893                 public void NoColonTimeZone ()
1894                 {
1895                         Assert.IsTrue (DateTime.Parse ("2004-05-26T03:29:01-0700").Ticks
1896                                 != DateTime.Parse ("2004-05-26T03:29:01-0800").Ticks);
1897                 }
1898
1899                 [Test]
1900                 public void WithColonTimeZone ()
1901                 {
1902                         Assert.IsTrue (DateTime.Parse ("2004-05-26T03:29:01-07:00").Ticks
1903                                 != DateTime.Parse ("2004-05-26T03:29:01-08:00").Ticks);
1904                 }
1905
1906                 [Test]
1907                 [ExpectedException (typeof (FormatException))]
1908                 public void EmptyFormatPattern ()
1909                 {
1910                         DateTime.ParseExact (String.Empty, String.Empty, null);
1911                 }
1912
1913                 [Test]
1914                 [ExpectedException (typeof (InvalidCastException))]
1915                 public void IConvertible_ToType_Boolean ()
1916                 {
1917                         ((IConvertible)DateTime.Now).ToType (typeof (bool), null);
1918                 }
1919
1920                 [Test]
1921                 [ExpectedException (typeof (InvalidCastException))]
1922                 public void IConvertible_ToType_Byte ()
1923                 {
1924                         ((IConvertible)DateTime.Now).ToType (typeof (byte), null);
1925                 }
1926
1927                 [Test]
1928                 [ExpectedException (typeof (InvalidCastException))]
1929                 public void IConvertible_ToType_Char ()
1930                 {
1931                         ((IConvertible)DateTime.Now).ToType (typeof (char), null);
1932                 }
1933
1934                 [Test]
1935                 public void IConvertible_ToType_DateTime ()
1936                 {
1937                         DateTime dt = DateTime.Now;
1938                         DateTime dt2 = (DateTime) ((IConvertible)dt).ToType (typeof (DateTime), null);
1939                         Assert.IsTrue (dt.Equals (dt2));
1940                 }
1941
1942                 [Test]
1943                 [ExpectedException (typeof (InvalidCastException))]
1944                 public void IConvertible_ToType_DBNull ()
1945                 {
1946                         ((IConvertible)DateTime.Now).ToType (typeof (DBNull), null);
1947                 }
1948
1949                 [Test]
1950                 [ExpectedException (typeof (InvalidCastException))]
1951                 public void IConvertible_ToType_Decimal ()
1952                 {
1953                         ((IConvertible)DateTime.Now).ToType (typeof (decimal), null);
1954                 }
1955
1956                 [Test]
1957                 [ExpectedException (typeof (InvalidCastException))]
1958                 public void IConvertible_ToType_Double ()
1959                 {
1960                         ((IConvertible)DateTime.Now).ToType (typeof (double), null);
1961                 }
1962
1963                 [Test]
1964                 [ExpectedException (typeof (ArgumentNullException))]
1965                 public void IConvertible_ToType_Empty ()
1966                 {
1967                         ((IConvertible)DateTime.Now).ToType (null, null);
1968                 }
1969
1970                 [Test]
1971                 [ExpectedException (typeof (InvalidCastException))]
1972                 public void IConvertible_ToType_Int16 ()
1973                 {
1974                         ((IConvertible)DateTime.Now).ToType (typeof (short), null);
1975                 }
1976
1977                 [Test]
1978                 [ExpectedException (typeof (InvalidCastException))]
1979                 public void IConvertible_ToType_Int32 ()
1980                 {
1981                         ((IConvertible)DateTime.Now).ToType (typeof (int), null);
1982                 }
1983
1984                 [Test]
1985                 [ExpectedException (typeof (InvalidCastException))]
1986                 public void IConvertible_ToType_Int64 ()
1987                 {
1988                         ((IConvertible)DateTime.Now).ToType (typeof (long), null);
1989                 }
1990
1991                 [Test]
1992                 public void IConvertible_ToType_Object ()
1993                 {
1994                         DateTime dt = DateTime.Now;
1995                         object o = ((IConvertible)dt).ToType (typeof (object), null);
1996                         Assert.IsTrue (dt.Equals (o));
1997                 }
1998
1999                 [Test]
2000                 [ExpectedException (typeof (InvalidCastException))]
2001                 public void IConvertible_ToType_SByte ()
2002                 {
2003                         ((IConvertible)DateTime.Now).ToType (typeof (sbyte), null);
2004                 }
2005
2006                 [Test]
2007                 [ExpectedException (typeof (InvalidCastException))]
2008                 public void IConvertible_ToType_Single ()
2009                 {
2010                         ((IConvertible)DateTime.Now).ToType (typeof (float), null);
2011                 }
2012
2013                 [Test]
2014                 public void IConvertible_ToType_String ()
2015                 {
2016                         DateTime dt = DateTime.Now;
2017                         string s = (string) ((IConvertible)dt).ToType (typeof (string), null);
2018                         Assert.AreEqual (s, dt.ToString ());
2019                 }
2020
2021                 [Test]
2022                 [ExpectedException (typeof (InvalidCastException))]
2023                 public void IConvertible_ToType_UInt16 ()
2024                 {
2025                         ((IConvertible)DateTime.Now).ToType (typeof (ushort), null);
2026                 }
2027
2028                 [Test]
2029                 [ExpectedException (typeof (InvalidCastException))]
2030                 public void IConvertible_ToType_UInt32 ()
2031                 {
2032                         ((IConvertible)DateTime.Now).ToType (typeof (uint), null);
2033                 }
2034
2035                 [Test]
2036                 [ExpectedException (typeof (InvalidCastException))]
2037                 public void IConvertible_ToType_UInt64 ()
2038                 {
2039                         ((IConvertible)DateTime.Now).ToType (typeof (ulong), null);
2040                 }
2041
2042                 [Test]
2043                 public void Bug352210 ()
2044                 {
2045                         DateTime dt = DateTime.ParseExact ("2007-06-15T10:30:10.5", "yyyy-MM-ddTHH:mm:ss.f", null);
2046                         Assert.AreEqual (633175002105000000, dt.Ticks, "#1");
2047                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "#2");
2048                 }
2049
2050                 [Test]
2051                 public void Bug352210_New ()
2052                 {
2053                         long ticksUTC = 633377759060000000;
2054                         long ticksLocal = ticksUTC + TimeZone.CurrentTimeZone.GetUtcOffset (new DateTime (ticksUTC)).Ticks;
2055                         CultureInfo ci = CultureInfo.InvariantCulture;
2056                         DateTime dt;
2057
2058                         // Should return same time with Unspecified kind
2059                         dt = DateTime.ParseExact ("2008-02-05 02:38:26", "yyyy-MM-dd HH:mm:ss", ci);
2060                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "A1");
2061                         Assert.AreEqual (ticksUTC, dt.Ticks, "A2");
2062
2063                         // Should return same time with Unspecified kind
2064                         dt = DateTime.ParseExact ("2008-02-05 02:38:26Z", "u", ci);
2065                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "B1");
2066                         Assert.AreEqual (ticksUTC, dt.Ticks, "B2");
2067
2068                         // Should adjust to local time with Local kind
2069                         dt = DateTime.ParseExact ("2008-02-05 00:38:26-02:00", "yyyy-MM-dd HH:mm:ssK", ci);
2070                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "C1");
2071                         Assert.AreEqual (ticksLocal, dt.Ticks, "C2");
2072
2073                         // Should ignore AssumeUniversal since a timezone specifier is in the format string
2074                         // and return time adjusted to local time with Local kind
2075                         dt = DateTime.ParseExact ("2008-02-05 00:38:26 -2", "yyyy-MM-dd HH:mm:ss z", ci, DateTimeStyles.AssumeUniversal);
2076                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "D1");
2077                         Assert.AreEqual (ticksLocal, dt.Ticks, "D2");
2078
2079                         try {
2080                                 // GMT in format string can be used to specify time zone
2081                                 dt = DateTime.ParseExact ("2008-02-05 02:38:26 GMT", "yyyy-MM-dd HH:mm:ss GMT", ci);
2082                                 Assert.AreEqual (DateTimeKind.Local, dt.Kind, "E1");
2083                                 Assert.AreEqual (ticksLocal, dt.Ticks, "E2");
2084                         }
2085                         catch {
2086                                 Assert.Fail ("E3");
2087                         }
2088
2089                         try {
2090                                 // Same as above even when surrounded with other characters
2091                                 dt = DateTime.ParseExact ("2008-02-05 02:38:26 qqGMTqq", "yyyy-MM-dd HH:mm:ss qqGMTqq", ci);
2092                                 Assert.AreEqual (DateTimeKind.Local, dt.Kind, "F1");
2093                                 Assert.AreEqual (ticksLocal, dt.Ticks, "F2");
2094                         }
2095                         catch {
2096                                 Assert.Fail ("F3");
2097                         }
2098
2099                         try {
2100                                 // But single quoted GMT in format string should not specify time zone
2101                                 dt = DateTime.ParseExact ("2008-02-05 02:38:26 GMT", "yyyy-MM-dd HH:mm:ss 'GMT'", ci);
2102                                 Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "G1");
2103                                 Assert.AreEqual (ticksUTC, dt.Ticks, "G2");
2104                         }
2105                         catch {
2106                                 Assert.Fail ("G3");
2107                         }
2108
2109                         dt = DateTime.Parse ("GMT 2008-02-05 02:38:26", ci);
2110                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "H1");
2111                         Assert.AreEqual (ticksLocal, dt.Ticks, "H2");
2112                 }
2113
2114                 [Test]
2115                 public void Bug377042 ()
2116                 {
2117                         string [] f = new string [] {
2118                                 "yyyy-MM-ddTHH:mm:ssZ",
2119                                 "yyyy-MM-ddTHH:mm:sszzzz",
2120                                 "yyyy-MM-dd"
2121                                 };
2122                         DateTimeStyles dts = DateTimeStyles.AdjustToUniversal;
2123                         dts |= DateTimeStyles.AssumeUniversal;
2124                         DateTime result = DateTime.ParseExact ("2005-01-01T01:11:11+8:00", f, new DateTimeFormatInfo (), dts);
2125                 }
2126
2127         [Test]
2128         public void TestParseExactXmlTimeFormats()
2129         {
2130             //Xamarin Bug 16742
2131             string[] xmlTimeFormats = {
2132                 "HH:mm:ss", "HH:mm:ss.FFFFFFF",
2133                 "HH:mm:sszzz", "HH:mm:ss.FFFFFFFzzz",
2134                 "HH:mm:ssZ", "HH:mm:ss.FFFFFFFZ"
2135             };
2136             DateTimeStyles style = DateTimeStyles.AllowLeadingWhite | DateTimeStyles.AllowTrailingWhite;
2137
2138             //time local
2139             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2140                 DateTime.ParseExact("13:30:44", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2141             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2142                 DateTime.ParseExact("13:30:44.0", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2143             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2144                 DateTime.ParseExact("13:30:44.00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2145             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2146                 DateTime.ParseExact("13:30:44.000", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2147             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2148                 DateTime.ParseExact("13:30:44.0000", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2149             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2150                 DateTime.ParseExact("13:30:44.00000", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2151             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2152                 DateTime.ParseExact("13:30:44.000000", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2153             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000).Ticks,
2154                 DateTime.ParseExact("13:30:44.0000000", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2155             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 123).Ticks,
2156                 DateTime.ParseExact("13:30:44.123", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2157
2158             //time with zero timezone
2159             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2160                 DateTime.ParseExact("13:30:44Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2161             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2162                 DateTime.ParseExact("13:30:44.0Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2163             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2164                 DateTime.ParseExact("13:30:44.00Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2165             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2166                 DateTime.ParseExact("13:30:44.000Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2167             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2168                 DateTime.ParseExact("13:30:44.0000Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2169             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2170                 DateTime.ParseExact("13:30:44.00000Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2171             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2172                 DateTime.ParseExact("13:30:44.000000Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2173             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, DateTimeKind.Utc).ToLocalTime().Ticks,
2174                 DateTime.ParseExact("13:30:44.0000000Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2175             Assert.AreEqual(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 123, DateTimeKind.Utc).ToLocalTime().Ticks,
2176                 DateTime.ParseExact("13:30:44.123Z", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2177
2178             //time with timezone
2179             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2180                 DateTime.ParseExact("13:30:44+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2181             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2182                 DateTime.ParseExact("13:30:44.0+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2183             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2184                 DateTime.ParseExact("13:30:44.00+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2185             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2186                 DateTime.ParseExact("13:30:44.000+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2187             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2188                 DateTime.ParseExact("13:30:44.0000+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2189             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2190                 DateTime.ParseExact("13:30:44.00000+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2191             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2192                 DateTime.ParseExact("13:30:44.000000+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2193             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 000, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2194                 DateTime.ParseExact("13:30:44.0000000+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2195             Assert.AreEqual(new DateTimeOffset(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 13, 30, 44, 123, new TimeSpan(13, 0, 0)).ToLocalTime().Ticks,
2196                 DateTime.ParseExact("13:30:44.123+13:00", xmlTimeFormats, DateTimeFormatInfo.InvariantInfo, style).Ticks);
2197         }
2198
2199                 [Test]
2200                 [ExpectedException (typeof (FormatException))]
2201                 public void EmptyString ()
2202                 {
2203                         DateTime.Parse ("");
2204                 }
2205
2206                 [Test]
2207                 public void TryEmptyString ()
2208                 {
2209                         DateTime date;
2210                         Assert.IsFalse (DateTime.TryParse ("", out date));
2211                 }
2212
2213                 [Test]
2214                 public void Kind ()
2215                 {
2216                         if (DateTime.Now == DateTime.UtcNow)
2217                                 Assert.Ignore (); // This test does not make sense.
2218                         if (TimeZone.CurrentTimeZone.GetUtcOffset (DateTime.UtcNow)
2219                                 != TimeZone.CurrentTimeZone.GetUtcOffset (DateTime.Now))
2220                                 Assert.Ignore (); // In this case it does not satisfy the test premises.
2221
2222                         Assert.AreEqual (DateTimeKind.Local, DateTime.Now.Kind, "#A1");
2223                         Assert.AreEqual (DateTimeKind.Local, DateTime.Today.Kind, "#A2");
2224
2225                         DateTime utc = DateTime.UtcNow;
2226                         DateTime now = new DateTime (utc.Ticks + TimeZone.
2227                                 CurrentTimeZone.GetUtcOffset (utc).Ticks, DateTimeKind.Local);
2228                         DateTime utctouniv = utc.ToUniversalTime ();
2229                         DateTime nowtouniv = now.ToUniversalTime ();
2230                         DateTime utctoloc = utc.ToLocalTime ();
2231                         DateTime nowtoloc = now.ToLocalTime ();
2232
2233                         Assert.AreEqual (DateTimeKind.Utc, utc.Kind, "#B1");
2234                         Assert.AreEqual (DateTimeKind.Local, now.Kind, "#B2");
2235                         Assert.AreEqual (DateTimeKind.Utc, utctouniv.Kind, "#B3");
2236                         Assert.AreEqual (DateTimeKind.Utc, nowtouniv.Kind, "#B4");
2237                         Assert.AreEqual (DateTimeKind.Local, utctoloc.Kind, "#B5");
2238                         Assert.AreEqual (DateTimeKind.Local, nowtoloc.Kind, "#B6");
2239                         Assert.AreEqual (utc, utctouniv, "#B7");
2240                         Assert.AreEqual (utc, nowtouniv, "#B8");
2241                         Assert.AreEqual (now, nowtoloc, "#B9");
2242                         Assert.AreEqual (now, utctoloc, "#B10");
2243                 }
2244
2245                 [Test]
2246                 public void InstanceMembersAndKind ()
2247                 {
2248                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.Date.Kind, "#1");
2249                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.Add (TimeSpan.FromMinutes (1)).Kind, "#2");
2250                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.Subtract (TimeSpan.FromMinutes (1)).Kind, "#3");
2251                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddDays (1).Kind, "#4");
2252                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddTicks (1).Kind, "#5");
2253                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddHours (1).Kind, "#6");
2254                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddMinutes (1).Kind, "#7");
2255                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddSeconds (1).Kind, "#8");
2256                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddMilliseconds (1).Kind, "#9");
2257                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddMonths (1).Kind, "#10");
2258                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddYears (1).Kind, "#11");
2259                         Assert.AreEqual (DateTimeKind.Utc, (DateTime.UtcNow + TimeSpan.FromMinutes (1)).Kind, "#12");
2260                         Assert.AreEqual (DateTimeKind.Utc, (DateTime.UtcNow - TimeSpan.FromMinutes (1)).Kind, "#13");
2261                 }
2262
2263                 [Test]
2264                 public void CompareTicks ()
2265                 {
2266                         // Only ticks are compared, not kind.
2267                         var d = new DateTime (0, DateTimeKind.Utc);
2268                         var f = new DateTime (0);
2269
2270                         Assert.AreEqual (d == f, true, "#1");
2271                 }
2272
2273                 [Test]
2274                 public void FromBinary ()
2275                 {
2276                         DateTime dt_utc = DateTime.FromBinary (0x4000000000000001);
2277                         Assert.AreEqual (DateTimeKind.Utc, dt_utc.Kind, "#1");
2278                         Assert.AreEqual (1, dt_utc.Ticks, "#2");
2279
2280                         DateTime dt_local = DateTime.FromBinary (unchecked ((long) 0x8000000000000001));
2281                         Assert.AreEqual (DateTimeKind.Local, dt_local.Kind, "#3");
2282
2283                         DateTime dt_unspecified = DateTime.FromBinary (0x0000000000000001);
2284                         Assert.AreEqual (DateTimeKind.Unspecified, dt_unspecified.Kind, "#4");
2285                         Assert.AreEqual (1, dt_unspecified.Ticks, "#5");
2286
2287                         DateTime dt_local2 = DateTime.FromBinary (unchecked ((long) 0xC000000000000001));
2288                         Assert.AreEqual (DateTimeKind.Local, dt_local2.Kind, "#6");
2289                         Assert.AreEqual (dt_local.Ticks, dt_local2.Ticks, "#7");
2290                 }
2291
2292                 [Test]
2293                 public void ToBinary ()
2294                 {
2295                         DateTime dt_local = new DateTime (1, DateTimeKind.Local);
2296                         Assert.AreEqual (1, (ulong) dt_local.ToBinary () >> 63, "#1");
2297                         Assert.AreEqual (1, dt_local.Ticks, "#2");
2298
2299                         DateTime dt_utc = new DateTime (1, DateTimeKind.Utc);
2300                         Assert.AreEqual (0x4000000000000001, dt_utc.ToBinary (), "#3");
2301                         Assert.AreEqual (1, dt_utc.Ticks, "#4");
2302
2303                         DateTime dt_unspecified = new DateTime (1, DateTimeKind.Unspecified);
2304                         Assert.AreEqual (1, dt_unspecified.ToBinary (), "#5");
2305                         Assert.AreEqual (1, dt_unspecified.Ticks, "#6");
2306                 }
2307
2308                 [Test]
2309                 public void RoundtripBinary ()
2310                 {
2311                         DateTime dt = DateTime.Now;
2312                         DateTime dt2 = DateTime.SpecifyKind (dt, DateTimeKind.Utc);
2313                         DateTime dt3 = DateTime.SpecifyKind (dt, DateTimeKind.Unspecified);
2314                         Assert.AreEqual (dt, DateTime.FromBinary (dt.ToBinary ()), "#1");
2315                         Assert.AreEqual (dt2, DateTime.FromBinary (dt2.ToBinary ()), "#2");
2316                         Assert.AreEqual (dt3, DateTime.FromBinary (dt3.ToBinary ()), "#3");
2317                         Assert.AreEqual (DateTimeKind.Local, DateTime.FromBinary (dt.ToBinary ()).Kind, "#4");
2318                         Assert.AreEqual (DateTimeKind.Utc, DateTime.FromBinary (dt2.ToBinary ()).Kind, "#5");
2319                         Assert.AreEqual (DateTimeKind.Unspecified, DateTime.FromBinary (dt3.ToBinary ()).Kind, "#6");
2320
2321                         Assert.AreEqual (TimeZone.CurrentTimeZone.GetUtcOffset (dt).Ticks, dt3.ToBinary () - (dt.ToBinary () & 0x7FFFFFFFFFFFFFFF), "#7");
2322                 }
2323
2324                 [Test]
2325                 public void TestMin ()
2326                 {
2327                         // This should never throw.
2328                         DateTime.MinValue.ToLocalTime ();
2329                 }
2330
2331                 [Test]
2332                 public void OmittedSecondsFraction ()
2333                 {
2334                         DateTime today = DateTime.Today;
2335                         Assert.AreEqual ("00:00:00.13579", today.AddTicks (1357900).ToString ("HH:mm:ss.FFFFFFF"), "#1");
2336                         DateTime dt = DateTime.ParseExact ("00:00:00.13579", "HH:mm:ss.FFFFFFF", CultureInfo.InvariantCulture);
2337                         Assert.AreEqual (today, dt.AddTicks (-1357900), "#2");
2338                         // it's more than strange ...
2339                         Assert.AreEqual (String.Empty, today.ToString (".FFFFFFF"), "#3");
2340                         Assert.AreEqual ("$", today.ToString ("$FFFFFFF"), "#4");
2341                 }
2342
2343                 [Test]
2344                 public void KindInPattern ()
2345                 {
2346                         // only 2.0 supports 'K'
2347                         Assert.AreEqual ("00:00:00", new DateTime (2000, 1, 1).ToString ("HH:mm:ssK"), "#1");
2348                         Assert.AreEqual ('Z', DateTime.Today.ToUniversalTime ().ToString ("HH:mm:ssK") [8], "#2");
2349                         Assert.AreEqual ("00:00:00+09:00".Length, DateTime.Today.ToString ("HH:mm:ssK").Length, "#3");
2350                 }
2351
2352                 [Test]
2353                 public void RoundtripPattern ()
2354                 {
2355                         // only 2.0 supports 'o'
2356                         Assert.AreEqual ("2000-01-01T00:00:00.0000000", new DateTime (2000, 1, 1).ToString ("o"), "#1");
2357                         Assert.AreEqual ("2000-01-01T00:00:00.0000000Z", DateTime.SpecifyKind (new DateTime (2000, 1, 1), DateTimeKind.Utc).ToString ("o"), "#2");
2358                         Assert.AreEqual ("2000-01-01T00:00:00.0000000+09:00".Length, DateTime.SpecifyKind (
2359                                 new DateTime (2000, 1, 1), DateTimeKind.Local).ToString ("o").Length, "#3");
2360
2361                         var culture = new CultureInfo ("ps-AF");
2362                         Assert.AreEqual ("1976-06-19T00:00:00.0000000", new DateTime(1976, 6, 19).ToString ("O", culture), "#4");
2363                         Assert.AreEqual ("1976-06-19T00:00:00.0000000", new DateTime(1976, 6, 19).ToString ("o", culture), "#5");
2364                 }
2365
2366                 [Test]
2367                 public void KindPattern ()
2368                 {
2369                         // no matter how the format string contains 'K' and the
2370                         // output string contains kind information, it does not
2371                         // assure that the string is parsed as roundtrip kind.
2372
2373                         // only 2.0 supports 'K'
2374                         string format = "yyyy-MM-dd'T'HH:mm:ss.fffK";
2375                         CultureInfo ci = CultureInfo.CurrentCulture;
2376                         DateTime dt = DateTime.SpecifyKind (new DateTime (2007, 11, 1, 2, 30, 45), DateTimeKind.Utc);
2377                         string s = dt.ToString (format);
2378                         DateTime d1 = DateTime.ParseExact (s, format, ci); // d1 is parsed as a local time.
2379                         Assert.AreEqual (dt.Ticks, d1.ToUniversalTime ().Ticks, "#1");
2380                         // .NET expects Local here, while s ends with 'Z' and should be parsed as UTC.
2381                         Assert.AreEqual (DateTimeKind.Local, d1.Kind, "#2");
2382
2383                         format = "yyyy-MM-dd'T'HH:mm:ssK";
2384                         ci = CultureInfo.CurrentCulture;
2385                         dt = new DateTime (2007, 11, 1, 2, 30, 45);
2386                         s = dt.ToString (format);
2387                         d1 = DateTime.ParseExact (s, format, ci);
2388                         Assert.AreEqual (dt.Ticks, d1.Ticks, "#3");
2389                         Assert.AreEqual (DateTimeKind.Unspecified, d1.Kind, "#4");
2390                 }
2391
2392                 [Test]
2393                 public void TestRoundTrip () {
2394                         DateTime result;
2395                         DateTimeStyles roundTripStyle = DateTimeStyles.RoundtripKind;
2396                         string utcDate = "2008-02-21T11:14:18.2721262Z";
2397                         string localDate = "2008-02-21T11:14:18.2721262+02:00";
2398                         string unspec = "2008-02-21T11:14:18.2721262";
2399                         String [] formats = {"yyyy-MM-ddTHH:mm:ssK", "yyyy-MM-ddTHH:mm:ss.FFFFFFFK"};
2400
2401                         result = DateTime.ParseExact (localDate, formats, CultureInfo.InvariantCulture, roundTripStyle);
2402                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2403                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391820582721262);
2404
2405                         result = DateTime.ParseExact (unspec, formats, CultureInfo.InvariantCulture, roundTripStyle);
2406                         Assert.AreEqual (result.Kind, DateTimeKind.Unspecified);
2407                         Assert.AreEqual (result.Ticks, 633391892582721262);
2408
2409                         result = DateTime.ParseExact (utcDate, formats, CultureInfo.InvariantCulture, roundTripStyle);
2410                         Assert.AreEqual (result.Kind, DateTimeKind.Utc);
2411                         Assert.AreEqual (result.Ticks, 633391892582721262);
2412
2413                 }
2414
2415                 [Test]
2416                 public void TestRegularStyle () {
2417                         DateTime result;
2418                         DateTimeStyles style = DateTimeStyles.AllowLeadingWhite | DateTimeStyles.AllowTrailingWhite;
2419                         string utcDate = "2008-02-21T11:14:18.2721262Z";
2420                         string localDate = "2008-02-21T11:14:18.2721262+02:00";
2421                         string unspec = "2008-02-21T11:14:18.2721262";
2422                         String [] formats = {"yyyy-MM-ddTHH:mm:ssK", "yyyy-MM-ddTHH:mm:ss.FFFFFFFK"};
2423
2424                         result = DateTime.ParseExact (localDate, formats, CultureInfo.InvariantCulture, style);
2425                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2426                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391820582721262);
2427
2428                         result = DateTime.ParseExact (unspec, formats, CultureInfo.InvariantCulture, style);
2429                         Assert.AreEqual (result.Kind, DateTimeKind.Unspecified);
2430                         Assert.AreEqual (result.Ticks, 633391892582721262);
2431
2432                         result = DateTime.ParseExact (utcDate, formats, CultureInfo.InvariantCulture, style);
2433                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2434                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391892582721262);
2435                 }
2436
2437                 [Test]
2438                 public void TestAssumeLocal () {
2439                         DateTime result;
2440                         DateTimeStyles assumeLocal =  DateTimeStyles.AssumeLocal;
2441                         string utcDate = "2008-02-21T11:14:18.2721262Z";
2442                         string localDate = "2008-02-21T11:14:18.2721262+02:00";
2443                         string unspec = "2008-02-21T11:14:18.2721262";
2444                         String [] formats = {"yyyy-MM-ddTHH:mm:ssK", "yyyy-MM-ddTHH:mm:ss.FFFFFFFK"};
2445
2446                         result = DateTime.ParseExact (localDate, formats, CultureInfo.InvariantCulture, assumeLocal);
2447                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2448                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391820582721262);
2449
2450                         result = DateTime.ParseExact (unspec, formats, CultureInfo.InvariantCulture, assumeLocal);
2451                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2452                         Assert.AreEqual (result.Ticks, 633391892582721262);
2453
2454                         result = DateTime.ParseExact (utcDate, formats, CultureInfo.InvariantCulture, assumeLocal);
2455                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2456                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391892582721262);
2457                 }
2458
2459                 [Test]
2460                 [ExpectedException (typeof (ArgumentException))]
2461                 public void IllegalStyleCombination1()
2462                 {
2463                         DateTimeStyles illegal = DateTimeStyles.RoundtripKind | DateTimeStyles.AssumeLocal;
2464                         DateTime.ParseExact ("", "", null, illegal);
2465                 }
2466
2467                 [Test]
2468                 [ExpectedException (typeof (ArgumentException))]
2469                 public void IllegalStyleCombination2()
2470                 {
2471                         DateTimeStyles illegal = DateTimeStyles.RoundtripKind | DateTimeStyles.AdjustToUniversal;
2472                         DateTime.ParseExact ("", "", null, illegal);
2473                 }
2474
2475                 [Test]
2476                 [ExpectedException (typeof (ArgumentException))]
2477                 public void IllegalStyleCombination3()
2478                 {
2479                         DateTimeStyles illegal = DateTimeStyles.RoundtripKind | DateTimeStyles.AssumeUniversal;
2480                         DateTime.ParseExact ("", "", null, illegal);
2481                 }
2482
2483                 [Test]
2484                 [ExpectedException (typeof (ArgumentException))]
2485                 public void IllegalStyleCombination4()
2486                 {
2487                         DateTimeStyles illegal = DateTimeStyles.AssumeLocal | DateTimeStyles.AssumeUniversal;
2488                         DateTime.ParseExact ("", "", null, illegal);
2489                 }
2490
2491                 [Test]
2492                 [ExpectedException (typeof (FormatException))]
2493                 public void TrailingDot ()
2494                 {
2495                         DateTime.ParseExact ("12:00:00", "HH:mm:ss.", null);
2496                 }
2497
2498                 [Test]
2499                 public void TrailingFlexibleMilliseconds ()
2500                 {
2501                         // bug #444103.
2502                         DateTime.ParseExact ("12:00:00", "HH:mm:ss.FFFFFFF", null);
2503                 }
2504
2505                 [Test]
2506                 public void TryParseExact_NullString ()
2507                 {
2508                         DateTime dt;
2509                         DateTime.TryParseExact(null, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", CultureInfo.InvariantCulture,
2510                                                DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out dt);
2511                         Assert.AreEqual(default(DateTime), dt);
2512                 }
2513
2514                 [Test]
2515                 public void MSAndZ ()
2516                 {
2517                         CultureInfo cultureInfo = CultureInfo.GetCultureInfo ("en-US");
2518                         DateTime dt;
2519                         if (!DateTime.TryParse ("2009.02.24T13:57:07.000 -0800", cultureInfo.DateTimeFormat,
2520                                                 DateTimeStyles.None, out dt))
2521                                 Assert.Fail ("Failed");
2522                 }
2523
2524                 [Test]
2525                 public void Parse_InvalidShortDate ()
2526                 {
2527                         DateTime expected = new DateTime (2011, 03, 22, 07, 32, 00, DateTimeKind.Utc).ToLocalTime();
2528                         DateTime expected2 = new DateTime (2011, 03, 22, 08, 32, 00, DateTimeKind.Utc);
2529
2530                         string [] cultures = new string [] {"es-ES", "en-US", "en-GB", "de-DE", "fr-FR"
2531 #if NET_4_0
2532                                 ,"es", "en", "de", "fr"
2533 #endif
2534                                 };
2535
2536                         foreach (string culture in cultures) {
2537                                 CultureInfo ci = new CultureInfo (culture);
2538                                 ci.DateTimeFormat.ShortDatePattern = "d";
2539
2540                                 Assert.AreEqual (expected,  DateTime.Parse ("2011-03-22 08:32:00+01:00", ci, DateTimeStyles.RoundtripKind), "#a01 - " + culture);
2541                                 Assert.AreEqual (expected,  DateTime.Parse ("2011/03/22 08:32:00+01:00", ci, DateTimeStyles.RoundtripKind), "#a02 - " + culture);
2542                                 Assert.AreEqual (expected2, DateTime.Parse ("2011-03-22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#a03 - " + culture);
2543                                 Assert.AreEqual (expected2, DateTime.Parse ("2011/03/22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#a04 - " + culture);
2544                                 Assert.AreEqual (expected2, DateTime.Parse ("03/2011/22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#a05 - " + culture);
2545                                 Assert.AreEqual (expected2, DateTime.Parse ("03-2011-22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#a06 - " + culture);
2546                                 Assert.AreEqual (expected,  DateTime.Parse ("03/2011/22 08:32:00+01:00", ci, DateTimeStyles.RoundtripKind), "#a07 - " + culture);
2547                                 ci.DateTimeFormat.DateSeparator = "%";
2548                                 Assert.AreEqual (expected,  DateTime.Parse ("2011-03-22 08:32:00+01:00", ci, DateTimeStyles.RoundtripKind), "#b01 - " + culture);
2549                                 Assert.AreEqual (expected,  DateTime.Parse ("2011/03/22 08:32:00+01:00", ci, DateTimeStyles.RoundtripKind), "#b02 - " + culture);
2550                                 Assert.AreEqual (expected2, DateTime.Parse ("2011-03-22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#b03 - " + culture);
2551                                 Assert.AreEqual (expected2, DateTime.Parse ("2011/03/22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#b04 - " + culture);
2552                                 Assert.AreEqual (expected2, DateTime.Parse ("03/2011/22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#b05 - " + culture);
2553                                 Assert.AreEqual (expected2, DateTime.Parse ("03-2011-22T08:32:00", ci, DateTimeStyles.RoundtripKind), "#b06 - " + culture);
2554                                 Assert.AreEqual (expected,  DateTime.Parse ("03/2011/22 08:32:00+01:00", ci, DateTimeStyles.RoundtripKind), "#b07 - " + culture);
2555                         }
2556                 }
2557
2558                 // Bug 3392
2559                 [Test]
2560                 public void Parse_DateWithTimeZone_TimeZoneShouldBeCorrectlyRead ()
2561                 {
2562                         string testDateWithTimeZoneInfo  = "2012-01-14T15:09:42.692875+03:00";
2563                         long expectedUtcTics = 634621397826928750;
2564
2565                         DateTimeOffset result = DateTimeOffset.Parse (testDateWithTimeZoneInfo, null, DateTimeStyles.RoundtripKind);
2566
2567                         Assert.AreEqual (expectedUtcTics, result.UtcTicks);
2568                 }
2569
2570                 [Test]
2571                 public void GenitiveMonth ()
2572                 {
2573                         var ci = new CultureInfo ("ru-RU");
2574                         var dt = new DateTime (2012, 9, 15);
2575                         Assert.AreEqual ("15 сентября", dt.ToString ("m", ci));
2576                 }
2577
2578                 [Test]
2579                 public void Parse_ThaiCalendar ()
2580                 {
2581                         var culture = CultureInfo.GetCultureInfo ("th-TH");
2582                         Assert.IsTrue (culture.Calendar is ThaiBuddhistCalendar);
2583                         var dt = DateTime.Now.Date;
2584                         var s = dt.ToString (culture);
2585                         var parsed = DateTime.Parse (s, culture);
2586
2587                         Assert.AreEqual (dt, parsed, "#1");
2588                 }
2589
2590                 [Test]
2591                 public void ISO8601FractionalDigits ()
2592                 {
2593                         string date = "2014-08-25T01:20:23.601911612343423423465789789365674575676746756747467Z";
2594                         long expectedTicks = 635445264236019116;
2595
2596                         var dt = DateTime.Parse (date, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind);
2597
2598                         Assert.AreEqual (expectedTicks, dt.Ticks);
2599                 }
2600
2601                 [Test]
2602                 [ExpectedException (typeof (FormatException))]
2603                 public void ISO8601FractionalDigitsException1 ()
2604                 {
2605                         string date = "2014-08-25T01:20:23.60191161234342342346578978936567457567:6746756747467Z";
2606                         DateTime.Parse (date, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind);
2607                 }
2608
2609                 [Test]
2610                 [ExpectedException (typeof (FormatException))]
2611                 public void ISO8601FractionalDigitsException2 ()
2612                 {
2613                         string date = "2014-08-25T01:20:23.6019116-12343423423465789789365674575676746756747467Z";
2614                         DateTime.Parse (date, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind);
2615                 }
2616
2617                 [Test]
2618                 [ExpectedException (typeof (FormatException))]
2619                 public void ISO8601FractionalDigitsException3 ()
2620                 {
2621                         string date = "2014-08-25T01:20:23.601911612343423423465789789365674575676746756747467%Z";
2622                         DateTime.Parse (date, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind);
2623                 }
2624
2625                 [Test]
2626                 public void Year_2 ()
2627                 {
2628                         var res = DateTime.Parse ("12-002", CultureInfo.InvariantCulture, DateTimeStyles.AllowWhiteSpaces | DateTimeStyles.RoundtripKind);
2629                         Assert.AreEqual (2, res.Year, "#1");
2630                         Assert.AreEqual (12, res.Month, "#2");
2631                 }
2632         }
2633 }