Merge branch 'master' of github.com:mono/mono
[mono.git] / 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                 [Test]
273                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
274                 public void AddMillisecondsOutOfRangeException1 ()
275                 {
276                         DateTime t1 = new DateTime (myTicks [1]);
277                         t1.AddMilliseconds (9E100);
278                 }
279
280                 [Test]
281                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
282                 public void AddMillisecondsOutOfRangeException2 ()
283                 {
284                         DateTime t1 = new DateTime (myTicks [1]);
285                         t1.AddMilliseconds (-9E100);
286                 }
287
288                 [Test]
289                 public void TestToString ()
290                 {
291                         DateTime t1 = new DateTime (myTicks[2]);
292                         DateTime t2 = new DateTime (myTicks[1]);
293                         DateTime t3 = new DateTime (999, 1, 2, 3, 4, 5);
294                         // Standard patterns
295                         Assert.AreEqual ("02/25/2002", t1.ToString ("d"), "#A1");
296                         Assert.AreEqual ("Monday, 25 February 2002", t1.ToString ("D"), "#A2");
297                         Assert.AreEqual ("Monday, 25 February 2002 05:25", t1.ToString ("f"), "#A3");
298                         Assert.AreEqual ("Monday, 25 February 2002 05:25:13", t1.ToString ("F"), "#A4");
299                         Assert.AreEqual ("02/25/2002 05:25", t1.ToString ("g"), "#A5");
300                         Assert.AreEqual ("02/25/2002 05:25:13", t1.ToString ("G"), "#A6");
301                         Assert.AreEqual ("February 25", t1.ToString ("m"), "#A7");
302                         Assert.AreEqual ("February 25", t1.ToString ("M"), "#A8");
303                         Assert.AreEqual ("Mon, 25 Feb 2002 05:25:13 GMT", t1.ToString ("r"), "#A9");
304                         Assert.AreEqual ("Mon, 25 Feb 2002 05:25:13 GMT", t1.ToString ("R"), "#A10");
305                         Assert.AreEqual ("2002-02-25T05:25:13", t1.ToString ("s"), "#A11");
306                         Assert.AreEqual ("05:25", t1.ToString ("t"), "#A12");
307                         Assert.AreEqual ("05:25:13", t1.ToString ("T"), "#A13");
308                         Assert.AreEqual ("2002-02-25 05:25:13Z", t1.ToString ("u"), "#A14");
309                         // FIXME: this test is timezone dependent
310                         // Assert.AreEqual ("Sunday, 24 February 2002 11:25:13", t1.ToString ("U"), "#A15");
311                         Assert.AreEqual ("2002 February", t1.ToString ("y"), "#A16");
312                         Assert.AreEqual ("2002 February", t1.ToString ("Y"), "#A17");
313                         Assert.AreEqual ("02/25/2002 05:25:13", t1.ToString (""), "#A18");
314
315                         // Custom patterns
316                         Assert.AreEqual ("25", t1.ToString ("%d"), "#B1");
317                         Assert.AreEqual ("25", t1.ToString ("dd"), "#B2");
318                         Assert.AreEqual ("Mon", t1.ToString ("ddd"), "#B3");
319                         Assert.AreEqual ("Monday", t1.ToString ("dddd"), "#B4");
320                         Assert.AreEqual ("2", t1.ToString ("%M"), "#B5");
321                         Assert.AreEqual ("02", t1.ToString ("MM"), "#B6");
322                         Assert.AreEqual ("Feb", t1.ToString ("MMM"), "#B7");
323                         Assert.AreEqual ("February", t1.ToString ("MMMM"), "#B8");
324                         Assert.AreEqual ("2", t1.ToString ("%y"), "#B9");
325                         Assert.AreEqual ("02", t1.ToString ("yy"), "#B10");
326                         Assert.AreEqual ("2002", t1.ToString ("yyyy"), "#B11");
327                         Assert.AreEqual ("5", t1.ToString ("%h"), "#B12");
328                         Assert.AreEqual ("05", t1.ToString ("hh"), "#B13");
329                         Assert.AreEqual ("3", t2.ToString ("%h"), "#B14");
330                         Assert.AreEqual ("03", t2.ToString ("hh"), "#B15");
331                         Assert.AreEqual ("15", t2.ToString ("%H"), "#B16");
332                         Assert.AreEqual ("15", t2.ToString ("HH"), "#B17");
333                         Assert.AreEqual ("25", t2.ToString ("%m"), "#B18");
334                         Assert.AreEqual ("25", t2.ToString ("mm"), "#B19");
335                         Assert.AreEqual ("13", t2.ToString ("%s"), "#B20");
336                         Assert.AreEqual ("13", t2.ToString ("ss"), "#B21");
337                         Assert.AreEqual ("A", t1.ToString ("%t"), "#B22");
338                         Assert.AreEqual ("P", t2.ToString ("%t"), "#B23");
339                         Assert.AreEqual ("AM", t1.ToString ("tt"), "#B24");
340                         Assert.AreEqual ("PM", t2.ToString ("tt"), "#B25");
341                         long offset = TimeZone.CurrentTimeZone.GetUtcOffset(t1).Ticks / 36000000000;
342                         // Must specify '+0' for GMT
343                         Assert.AreEqual (offset.ToString ("+#;-#;+0"), t1.ToString ("%z"), "#B26");
344                         Assert.AreEqual (offset.ToString ("+00;-00;+00"), t1.ToString ("zz"), "#B28");
345                         // This does not work in, eg banglore, because their timezone has an offset of
346                         // +05:30
347                         //Assert.AreEqual (offset.ToString("+00;-00;00") + ":00", t1.ToString ("zzz"), "#B28");
348                         Assert.AreEqual (" : ", t1.ToString (" : "), "#B29");
349                         Assert.AreEqual (" / ", t1.ToString (" / "), "#B30");
350                         Assert.AreEqual (" yyy ", t1.ToString (" 'yyy' "), "#B31");
351                         Assert.AreEqual (" d", t1.ToString (" \\d"), "#B32");
352                         Assert.AreEqual ("2002", t1.ToString ("yyy"), "#B33");
353                         Assert.AreEqual ("0002002", t1.ToString ("yyyyyyy"), "#B34");
354                         Assert.AreEqual ("999", t3.ToString ("yyy"), "#B33");
355                         Assert.AreEqual ("0999", t3.ToString ("yyyy"), "#B33");
356                 }
357
358                 [Test]
359                 public void ParseExact_Format_Empty ()
360                 {
361                         try {
362                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", string.Empty, null);
363                                 Assert.Fail ("#A1");
364                         } catch (FormatException ex) {
365                                 // Format specifier was invalid
366                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
367                                 Assert.IsNull (ex.InnerException, "#B3");
368                                 Assert.IsNotNull (ex.Message, "#B4");
369                         }
370
371                         try {
372                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", string.Empty, null,
373                                         DateTimeStyles.None);
374                                 Assert.Fail ("#B1");
375                         } catch (FormatException ex) {
376                                 // Format specifier was invalid
377                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
378                                 Assert.IsNull (ex.InnerException, "#B3");
379                                 Assert.IsNotNull (ex.Message, "#B4");
380                         }
381                 }
382
383                 [Test]
384                 public void ParseExact_Format_Null ()
385                 {
386                         try {
387                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", (string) null, null);
388                                 Assert.Fail ("#A1");
389                         } catch (ArgumentNullException ex) {
390                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
391                                 Assert.IsNull (ex.InnerException, "#A3");
392                                 Assert.IsNotNull (ex.Message, "#A4");
393                                 Assert.IsNotNull (ex.ParamName, "#A5");
394                                 Assert.AreEqual ("format", ex.ParamName, "#A6");
395                         }
396
397                         try {
398                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", (string) null, null,
399                                         DateTimeStyles.None);
400                                 Assert.Fail ("#B1");
401                         } catch (ArgumentNullException ex) {
402                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
403                                 Assert.IsNull (ex.InnerException, "#B3");
404                                 Assert.IsNotNull (ex.Message, "#B4");
405                                 Assert.IsNotNull (ex.ParamName, "#B5");
406                                 Assert.AreEqual ("format", ex.ParamName, "#B6");
407                         }
408                 }
409
410                 [Test]
411                 public void ParseExact_Formats_Empty ()
412                 {
413                         try {
414                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", new string [0],
415                                         null, DateTimeStyles.None);
416                                 Assert.Fail ("#A1");
417                         } catch (FormatException ex) {
418                                 // Format specifier was invalid
419                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#A2");
420                                 Assert.IsNull (ex.InnerException, "#A3");
421                                 Assert.IsNotNull (ex.Message, "#A4");
422                         }
423
424                         string [] formats = new string [] { "G", string.Empty, "d" };
425                         try {
426                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", formats, null,
427                                         DateTimeStyles.None);
428                                 Assert.Fail ("#B1");
429                         } catch (FormatException ex) {
430                                 // Format specifier was invalid
431                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
432                                 Assert.IsNull (ex.InnerException, "#B3");
433                                 Assert.IsNotNull (ex.Message, "#B4");
434                         }
435                 }
436
437                 [Test]
438                 public void ParseExact_Formats_Null ()
439                 {
440                         try {
441                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", (string []) null,
442                                         null, DateTimeStyles.None);
443                                 Assert.Fail ("#A1");
444                         } catch (ArgumentNullException ex) {
445                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
446                                 Assert.IsNull (ex.InnerException, "#A3");
447                                 Assert.IsNotNull (ex.Message, "#A4");
448                                 Assert.IsNotNull (ex.ParamName, "#A5");
449                                 Assert.AreEqual ("formats", ex.ParamName, "#A6");
450                         }
451
452                         string [] formats = new string [] { "G", null, "d" };
453                         try {
454                                 DateTime.ParseExact ("2002-02-25 04:25:13Z", formats, null,
455                                         DateTimeStyles.None);
456                                 Assert.Fail ("#B1");
457                         } catch (FormatException ex) {
458                                 // Format specifier was invalid
459                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
460                                 Assert.IsNull (ex.InnerException, "#B3");
461                                 Assert.IsNotNull (ex.Message, "#B4");
462                         }
463                 }
464
465                 [Test]
466                 public void ParseExact_String_Empty ()
467                 {
468                         try {
469                                 DateTime.ParseExact (string.Empty, "G", null);
470                                 Assert.Fail ("#A1");
471                         } catch (FormatException ex) {
472                                 // Format specifier was invalid
473                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#A2");
474                                 Assert.IsNull (ex.InnerException, "#A3");
475                                 Assert.IsNotNull (ex.Message, "#A4");
476                         }
477
478                         try {
479                                 DateTime.ParseExact (string.Empty, "G", null, DateTimeStyles.None);
480                                 Assert.Fail ("#B1");
481                         } catch (FormatException ex) {
482                                 // Format specifier was invalid
483                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
484                                 Assert.IsNull (ex.InnerException, "#B3");
485                                 Assert.IsNotNull (ex.Message, "#B4");
486                         }
487
488                         try {
489                                 DateTime.ParseExact (string.Empty, new string [] { "G" }, null,
490                                         DateTimeStyles.None);
491                                 Assert.Fail ("#C1");
492                         } catch (FormatException ex) {
493                                 // Format specifier was invalid
494                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#C2");
495                                 Assert.IsNull (ex.InnerException, "#C3");
496                                 Assert.IsNotNull (ex.Message, "#C4");
497                         }
498                 }
499
500                 [Test]
501                 public void ParseExact_String_Null ()
502                 {
503                         try {
504                                 DateTime.ParseExact ((string) null, "G", null);
505                                 Assert.Fail ("#A1");
506                         } catch (ArgumentNullException ex) {
507                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
508                                 Assert.IsNull (ex.InnerException, "#A3");
509                                 Assert.IsNotNull (ex.Message, "#A4");
510                                 Assert.IsNotNull (ex.ParamName, "#A5");
511                                 Assert.AreEqual ("s", ex.ParamName, "#A6");
512                         }
513
514                         try {
515                                 DateTime.ParseExact ((string) null, "G", null, DateTimeStyles.None);
516                                 Assert.Fail ("#B1");
517                         } catch (ArgumentNullException ex) {
518                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
519                                 Assert.IsNull (ex.InnerException, "#B3");
520                                 Assert.IsNotNull (ex.Message, "#B4");
521                                 Assert.IsNotNull (ex.ParamName, "#B5");
522                                 Assert.AreEqual ("s", ex.ParamName, "#B6");
523                         }
524
525                         try {
526                                 DateTime.ParseExact ((string) null, new string [] { "G" }, null,
527                                         DateTimeStyles.None);
528                                 Assert.Fail ("#C1");
529                         } catch (ArgumentNullException ex) {
530                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#C2");
531                                 Assert.IsNull (ex.InnerException, "#C3");
532                                 Assert.IsNotNull (ex.Message, "#C4");
533                                 Assert.IsNotNull (ex.ParamName, "#C5");
534                                 Assert.AreEqual ("s", ex.ParamName, "#C6");
535                         }
536                 }
537
538                 [Test]
539                 public void TestParseExact3 ()
540                 {
541                         DateTime t1 = DateTime.ParseExact ("2002-02-25 04:25:13Z", "u", null);
542                         Assert.AreEqual (2002, t1.Year, "#1");
543                         Assert.AreEqual (02, t1.Month, "#2");
544                         Assert.AreEqual (25, t1.Day, "#3");
545                         Assert.AreEqual (04, t1.Hour, "#4");
546                         Assert.AreEqual (25, t1.Minute, "#5");
547                         Assert.AreEqual (13, t1.Second, "#6");
548                 }
549
550                 [Test]
551                 public void TestParseExact4 ()
552                 {
553                         // bug #60912, modified hour as 13:00
554                         string s = "6/28/2004 13:00:00 AM";
555                         string f = "M/d/yyyy HH':'mm':'ss tt";
556                         DateTime.ParseExact (s, f, CultureInfo.InvariantCulture);
557
558                         // bug #63137
559                         DateTime.ParseExact ("Wed, 12 May 2004 20:51:09 +0200",
560                                 @"ddd, d MMM yyyy H:m:s zzz",
561                                 CultureInfo.CreateSpecificCulture("en-us"),
562                                 DateTimeStyles.AllowInnerWhite);
563                 }
564
565                 [Test]
566                 public void TestParseExact5 ()
567                 {
568                         DateTime dt = DateTime.ParseExact ("Wed, 12 May 2004 20:51:09 -02:30",
569                                                         @"ddd, d MMM yyyy H:m:s zzz",
570                                                         CultureInfo.CreateSpecificCulture("en-us"),
571                                                         DateTimeStyles.AllowInnerWhite);
572                         dt = dt.ToUniversalTime ();
573                         Assert.AreEqual (23, dt.Hour, "Hour");
574                         Assert.AreEqual (21, dt.Minute, "Minute");
575                 }
576
577                 [Test]
578                 public void TestParseExact ()
579                 {
580                         // Standard patterns
581                         DateTime t1 = DateTime.ParseExact ("02/25/2002", "d", null);
582                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A1");
583                         t1 = DateTime.ParseExact ("Monday, 25 February 2002", "D", null);
584                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A2");
585                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25", "f", null);
586                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A3");
587                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13", "F", null);
588                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A4");
589                         t1 = DateTime.ParseExact ("02/25/2002 05:25", "g", null);
590                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A5");
591                         t1 = DateTime.ParseExact ("02/25/2002 05:25:13", "G", null);
592                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A6");
593                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 04:25:13", "U", null);
594                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
595                         Assert.AreEqual (2002, t1.Year, "#A7");
596                         Assert.AreEqual (02, t1.Month, "#A8");
597                         Assert.AreEqual (25, t1.Day, "#A9");
598                         Assert.AreEqual (04, t1.Hour, "#A10");
599                         Assert.AreEqual (25, t1.Minute, "#A11");
600                         Assert.AreEqual (13, t1.Second, "#A12");
601                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 04:25:13", "U", null);
602                         Assert.AreEqual ("Monday, 25 February 2002 04:25:13", t1.ToString ("U"), "#A13");
603
604                         DateTime t2 = new DateTime (DateTime.Today.Year, 2, 25);
605                         t1 = DateTime.ParseExact ("February 25", "m", null);
606                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B1");
607
608                         t2 = new DateTime (DateTime.Today.Year, 2, 25);
609                         t1 = DateTime.ParseExact ("February 25", "M", null);
610                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B2");
611
612                         t1 = DateTime.ParseExact ("Mon, 25 Feb 2002 04:25:13 GMT", "r", null);
613                         Assert.AreEqual (2002, t1.Year, "#C1");
614                         Assert.AreEqual (02, t1.Month, "#C2");
615                         Assert.AreEqual (25, t1.Day, "#C3");
616                         Assert.AreEqual (04, t1.Hour, "#C4");
617                         Assert.AreEqual (25, t1.Minute, "#C5");
618                         Assert.AreEqual (13, t1.Second, "#C6");
619
620                         t1 = DateTime.ParseExact ("Mon, 25 Feb 2002 04:25:13 GMT", "R", null);
621                         Assert.AreEqual (2002, t1.Year, "#D1");
622                         Assert.AreEqual (02, t1.Month, "#D2");
623                         Assert.AreEqual (25, t1.Day, "#D3");
624                         Assert.AreEqual (04, t1.Hour, "#D4");
625                         Assert.AreEqual (25, t1.Minute, "#D5");
626                         Assert.AreEqual (13, t1.Second, "#D6");
627
628                         t1 = DateTime.ParseExact ("2002-02-25T05:25:13", "s", null);
629                         Assert.AreEqual (myTicks [4], t1.Ticks, "#E1");
630
631                         t2 = DateTime.Today + new TimeSpan (5,25,0);
632                         t1 = DateTime.ParseExact ("05:25", "t", null);
633                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E2");
634
635                         t2 = DateTime.Today + new TimeSpan (5,25,13);
636                         t1 = DateTime.ParseExact ("05:25:13", "T", null);
637                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E3");
638
639                         t2 = new DateTime (2002, 2, 1);
640                         t1 = DateTime.ParseExact ("2002 February", "y", null);
641                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E4");
642
643                         t2 = new DateTime (2002, 2, 1);
644                         t1 = DateTime.ParseExact ("2002 February", "Y", null);
645                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#E5");
646
647                         // Custom patterns
648                         t2 = new DateTime (DateTime.Now.Year, 1, 25);
649                         t1 = DateTime.ParseExact ("25", "%d", null);
650                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#F1");
651                         t1 = DateTime.ParseExact ("25", "dd", null);
652                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#F2");
653
654                         t2 = new DateTime (DateTime.Today.Year, 2, 1);
655                         t1 = DateTime.ParseExact ("2", "%M", null);
656                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G1");
657                         t1 = DateTime.ParseExact ("02", "MM", null);
658                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G2");
659                         t1 = DateTime.ParseExact ("Feb", "MMM", null);
660                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G3");
661                         t1 = DateTime.ParseExact ("February", "MMMM", null);
662                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G4");
663
664                         t2 = new DateTime (2005, 1, 1);
665                         t1 = DateTime.ParseExact ("5", "%y", null);
666                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G5");
667                         t1 = DateTime.ParseExact ("05", "yy", null);
668                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G6");
669                         t1 = DateTime.ParseExact ("2005", "yyyy", null);
670                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G7");
671
672                         t2 = DateTime.Today + new TimeSpan (5, 0, 0);
673                         t1 = DateTime.ParseExact ("5A", "ht", null);
674                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G8");
675                         t1 = DateTime.ParseExact ("05A", "hht", null);
676                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G9");
677
678                         t2 = DateTime.Today + new TimeSpan (15, 0, 0);
679                         t1 = DateTime.ParseExact ("3P", "ht", null);
680                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G10");
681                         t1 = DateTime.ParseExact ("03P", "hht", null);
682                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G11");
683
684                         t2 = DateTime.Today + new TimeSpan (5, 0, 0);
685                         t1 = DateTime.ParseExact ("5", "%H", null);
686                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G12");
687
688                         t2 = DateTime.Today + new TimeSpan (15, 0, 0);
689                         t1 = DateTime.ParseExact ("15", "%H", null);
690                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G13");
691                         t1 = DateTime.ParseExact ("15", "HH", null);
692                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#G14");
693
694                         // Time zones
695 #if false
696                         // Fails durring DST for msft and mono
697                         t2 = DateTime.Today + new TimeSpan (17, 18, 0);
698                         t1 = DateTime.ParseExact ("11:18AM -5", "h:mmtt z", null);
699                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
700                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
701                                 t1 += new TimeSpan(1, 0, 0);
702                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H1");
703                         
704                         t1 = DateTime.ParseExact ("11:18AM -05:00", "h:mmtt zzz", null);
705                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
706                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
707                                 t1 += new TimeSpan(1, 0, 0);
708                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H2");
709
710                         t1 = DateTime.ParseExact ("7:18PM +03", "h:mmtt zz", null);
711                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
712                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
713                                 t1 += new TimeSpan(1, 0, 0);
714                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H3");
715
716                         t1 = DateTime.ParseExact ("7:48PM +03:30", "h:mmtt zzz", null);
717                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
718                         if (!TimeZone.CurrentTimeZone.IsDaylightSavingTime(t1))
719                                 t1 += new TimeSpan(1, 0, 0);
720                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#H4");
721 #endif
722
723                         // Options
724                         t2 = DateTime.Today + new TimeSpan (16, 18, 0);
725                         t1 = DateTime.ParseExact ("11:18AM -5", "h:mmtt z",
726                                                   null, DateTimeStyles.AdjustToUniversal);
727                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#I1");
728
729                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13", "F",
730                                                   null, DateTimeStyles.AdjustToUniversal);
731                         Assert.AreEqual (myTicks [4], t1.Ticks, "#I2");
732                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13",
733                                                   "dddd, dd MMMM yyyy HH:mm:ss",
734                                                   null, DateTimeStyles.AdjustToUniversal);
735                         Assert.AreEqual (myTicks [4], t1.Ticks, "#I3");
736
737                         t1 = DateTime.ParseExact ("02/25/2002", "d", null,
738                                                   DateTimeStyles.AllowWhiteSpaces);
739                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I4");
740
741                         t1 = DateTime.ParseExact ("    02/25/2002", "d", null,
742                                                   DateTimeStyles.AllowLeadingWhite);
743                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I5");
744
745                         t1 = DateTime.ParseExact ("02/25/2002    ", "d", null,
746                                                   DateTimeStyles.AllowTrailingWhite);
747                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I6");
748
749                         t1 = DateTime.ParseExact ("  02 / 25 / 2002    ", "d", null,
750                                                   DateTimeStyles.AllowWhiteSpaces);
751                         Assert.AreEqual (myTicks [0], t1.Ticks, "#I7");
752
753                         // Multi Custom Patterns
754                         string rfc1123_date = "r";
755                         string rfc850_date = "dddd, dd'-'MMM'-'yy HH':'mm':'ss 'GMT'";
756                         string asctime_date = "ddd MMM d HH':'mm':'ss yyyy";
757                         string [] formats = new string [] {rfc1123_date, rfc850_date, asctime_date};
758                         CultureInfo enUS = new CultureInfo("en-US", false);
759                         t1 = DateTime.ParseExact ("Sun, 06 Nov 1994 08:49:37 GMT", formats[0], enUS, 
760                                                 DateTimeStyles.AllowWhiteSpaces);
761                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J1");
762                         t1 = DateTime.ParseExact ("Sunday, 06-Nov-94 08:49:37 GMT", formats[1], enUS, 
763                                                 DateTimeStyles.AllowWhiteSpaces);
764                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J2");
765                         t1 = DateTime.ParseExact ("Sun Nov  6 08:49:37 1994", formats[2], enUS, 
766                                                 DateTimeStyles.AllowWhiteSpaces);
767                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J3");
768                         t1 = DateTime.ParseExact ("Sun, 06 Nov 1994 08:49:37 GMT", formats, enUS, 
769                                                 DateTimeStyles.AllowWhiteSpaces);
770                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J4");
771                         t1 = DateTime.ParseExact ("Sunday, 06-Nov-94 08:49:37 GMT", formats, enUS, 
772                                                 DateTimeStyles.AllowWhiteSpaces);
773                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J5");
774                         t1 = DateTime.ParseExact ("Sun Nov  6 08:49:37 1994", formats, enUS, 
775                                                 DateTimeStyles.AllowWhiteSpaces);
776                         Assert.AreEqual (myTicks [6], t1.Ticks, "#J6");
777                         t1 = DateTime.ParseExact ("Monday, 25 February 2002 05:25:13",
778                                                 "ddddddd, dd MMMMMMM yyyy HHHHH:mmmmm:sssss",
779                                                 null, DateTimeStyles.AdjustToUniversal);
780                         Assert.AreEqual (myTicks[4], t1.Ticks, "#J7");
781                 
782                         // Bug 52274
783                         t1 = DateTime.ParseExact ("--12--", "--MM--" , null);
784                         Assert.AreEqual (12, t1.Month, "#K1");
785                         t1=DateTime.ParseExact ("--12-24", "--MM-dd" , null);
786                         Assert.AreEqual (24, t1.Day, "#K2");
787                         Assert.AreEqual (12, t1.Month, "#K3");
788                         t1=DateTime.ParseExact ("---24", "---dd" , null);
789                         Assert.AreEqual (24, t1.Day, "#K4");
790
791                         // Bug 63376
792                         t1 = DateTime.ParseExact ("18Aug2004 12:33:00", "ddMMMyyyy hh:mm:ss", new CultureInfo ("en-US"));
793                         Assert.AreEqual (0, t1.Hour, "hh allows 12, though it's useless");
794
795                         // Bug 74775
796                         DateTime.ParseExact ("Tue, 12 Apr 2005 10:10:04 +0100",
797                                 "Tue, 12 Apr 2005 10:10:04 +0100", enUS);
798                         try {
799                                 DateTime.ParseExact ("Tue, 12 Apr 2005 10:10:04 +00000",
800                                         "ddd, dd MMM yyyy HH':'mm':'ss zzz", enUS);
801                                 Assert.Fail ("#L1");
802                         } catch (FormatException) {
803                         }
804
805                         // Bug #75213 : literal escaping.
806                         t1 = DateTime.ParseExact ("20050707132527Z",
807                                 "yyyyMMddHHmmss\\Z", CultureInfo.InvariantCulture);
808                         Assert.AreEqual (632563395270000000, t1.Ticks, "#L2");
809
810                         // XAttributeTest.CastDateTimeOffsets():#6b
811                         // It is said broken, probably due to timezone difference.
812                         //t1 = DateTime.ParseExact ("2039-10-31T12:34:56.7552+00:00", "yyyy-MM-ddTHH:mm:ss.FFFFFFFzzz",
813                         //                        CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
814                         //Assert.AreEqual (643393064967552000, t1.Ticks, "#M");
815                 }
816
817                 [Test]
818                 [Ignore ("need to fix tests that run on different timezones")]
819                 public void TestParse2 ()
820                 {
821                         DateTime t1 = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT");
822                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
823                         Assert.AreEqual (04 - TimeZone.CurrentTimeZone.GetUtcOffset (t1).Hours, t1.Hour);
824                 }
825
826                 [Test]
827                 public void TestParseDateFirst ()
828                 {
829                         // Standard patterns
830                         CultureInfo USCultureInfo = new CultureInfo("en-US");
831                         DateTime t1 = DateTime.Parse ("02/25/2002", USCultureInfo);
832                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A1");
833                         t1 = DateTime.Parse ("2002-02-25", USCultureInfo);
834                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A2");
835                         t1 = DateTime.Parse ("Monday, 25 February 2002");
836                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A3");
837                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25");
838                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A4");
839                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25:13");
840                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A5");
841                         t1 = DateTime.Parse ("02/25/2002 05:25", USCultureInfo);
842                         Assert.AreEqual (myTicks [3], t1.Ticks, "#A6");
843                         t1 = DateTime.Parse ("02/25/2002 05:25:13", USCultureInfo);
844                         Assert.AreEqual (myTicks [4], t1.Ticks, "#A7");
845                         t1 = DateTime.Parse ("2002-02-25 04:25:13Z");
846                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime(t1);
847                         Assert.AreEqual (2002, t1.Year, "#A8");
848                         Assert.AreEqual (02, t1.Month, "#A9");
849                         Assert.AreEqual (25, t1.Day, "#A10");
850                         Assert.AreEqual (04, t1.Hour, "#A11");
851                         Assert.AreEqual (25, t1.Minute, "#A12");
852                         Assert.AreEqual (13, t1.Second, "#A13");
853                         t1 = DateTime.Parse ("Mon,02/25/2002", USCultureInfo);
854                         Assert.AreEqual (myTicks [0], t1.Ticks, "#A14");
855                         DateTime t2 = new DateTime (1999, 1, 2, 0, 3, 4);
856                         t1 = DateTime.Parse (t2.ToLongTimeString ());
857                         Assert.AreEqual (0, t1.Hour, "#A14");
858
859                         // parsed as UTC string
860                         t1 = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT");
861                         t1 = TimeZone.CurrentTimeZone.ToUniversalTime (t1);
862                         Assert.AreEqual (2002, t1.Year, "#C1");
863                         Assert.AreEqual (02, t1.Month, "#C2");
864                         Assert.AreEqual (25, t1.Day, "#C3");
865                         Assert.AreEqual (4, t1.Hour, "#C4");
866                         Assert.AreEqual (25, t1.Minute, "#C5");
867                         Assert.AreEqual (13, t1.Second, "#C6");
868
869                         // Some date 'T' time formats
870 #if NET_2_0 // Net_1_1 requires hh:mm:ss
871                         t1 = DateTime.Parse ("2002-02-25T05:25");
872                         Assert.AreEqual (myTicks [3], t1.Ticks, "#D1");
873 #endif
874                         t1 = DateTime.Parse ("2002-02-25T05:25:13");
875                         Assert.AreEqual (myTicks [4], t1.Ticks, "#D1");
876                         t1 = DateTime.Parse ("2002-02-25T05:25:13.008");
877                         Assert.AreEqual (myTicks [2], t1.Ticks, "#D1");
878                         t1 = DateTime.Parse ("02-2002-25T05:25:13");
879                         Assert.AreEqual (myTicks [4], t1.Ticks, "#D1");
880
881                         // Day month
882                         t2 = new DateTime (DateTime.Today.Year, 2, 25);
883                         t1 = DateTime.Parse ("February 25", USCultureInfo);
884                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B1");
885
886                         t2 = new DateTime (DateTime.Today.Year, 2, 8);
887                         t1 = DateTime.Parse ("February 08", USCultureInfo);
888                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B2");
889
890                         t2 = new DateTime (DateTime.Today.Year, 2, 8);
891                         t1 = DateTime.Parse ("February 8", USCultureInfo);
892                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D6");
893
894                         // Month year
895                         t2 = new DateTime (2002, 2, 1);
896                         t1 = DateTime.Parse ("2002 February");
897                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D4");
898
899                         t2 = new DateTime (2002, 2, 1);
900                         t1 = DateTime.Parse ("2002 February", new CultureInfo ("ja-JP"));
901                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D5");
902
903                         // bug #72132
904                         t2 = new DateTime (2002, 2, 25, 5, 25, 22);
905                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25:22",
906                                 new CultureInfo ("hi-IN"));
907                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D7");
908                         t2 = new DateTime (2002, 2, 25, 5, 25, 0);
909                         t1 = DateTime.Parse ("Monday, 25 February 2002 05:25",
910                                 new CultureInfo ("hi-IN"));
911                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D8");
912
913                         // MM-yyyy-dd + different time formats
914                         t1 = DateTime.Parse ("02-2002-25 05:25", USCultureInfo);
915                         Assert.AreEqual (myTicks[3], t1.Ticks, "#E1");
916                         t1 = DateTime.Parse ("02-2002-25 05:25:13", USCultureInfo);
917                         Assert.AreEqual (myTicks[4], t1.Ticks, "#E1");
918                         t1 = DateTime.Parse ("02-2002-25 05:25:13 Mon", USCultureInfo);
919                         Assert.AreEqual (myTicks[4], t1.Ticks, "#E2");
920                         t1 = DateTime.Parse ("02-2002-25 05:25:13 Monday", USCultureInfo);
921                         Assert.AreEqual (myTicks[4], t1.Ticks, "#E3");
922                         t1 = DateTime.Parse ("02-2002-25 05:25:13.008", USCultureInfo);
923                         Assert.AreEqual (myTicks[2], t1.Ticks, "#E4");
924
925                         // Formats with timezone
926                         long offset = TimeZone.CurrentTimeZone.GetUtcOffset(t1).Ticks;
927                         long hourTicks = 36000000000L;
928                         long halfHourTicks = hourTicks / 2;
929                         t1 = DateTime.Parse ("02-2002-25 05:25+01", USCultureInfo);
930                         Assert.AreEqual (myTicks[3], t1.Ticks + hourTicks - offset, "#F1");
931                         t1 = DateTime.Parse ("02-2002-25 05:25-01", USCultureInfo);
932                         Assert.AreEqual (myTicks[3], t1.Ticks - hourTicks - offset, "#F2");
933                         t1 = DateTime.Parse ("02-2002-25 05:25+00:30", USCultureInfo);
934                         Assert.AreEqual (myTicks[3], t1.Ticks + hourTicks/2 - offset, "#F3");
935                         t1 = DateTime.Parse ("02-2002-25 05:25:13+02", USCultureInfo);
936                         Assert.AreEqual (myTicks[4], t1.Ticks + 2*hourTicks - offset, "#F4");
937 #if NET_2_0
938                         // NET 1.0 doesn't accept second fractions and time zone.
939                         t1 = DateTime.Parse ("2002-02-25 05:25:13.008-02");
940                         Assert.AreEqual (myTicks[2], t1.Ticks - 2*hourTicks - offset, "#F5");
941                         // NET 1.0 doesn't parse well time zone with AM afterwards.
942                         t1 = DateTime.Parse ("02-25-2002 05:25:13-02 AM", USCultureInfo);
943                         Assert.AreEqual (myTicks[4], t1.Ticks - 2*hourTicks - offset, "#F6");
944                         t1 = DateTime.Parse ("25 Feb 2002 05:25:13-02 AM", USCultureInfo);
945                         Assert.AreEqual (myTicks[4], t1.Ticks - 2*hourTicks - offset, "#F6");
946 #endif
947                 }
948
949                 [Test]
950                 public void TestParseTimeFirst ()
951                 {
952                         CultureInfo USCultureInfo = new CultureInfo("en-US");
953
954                         // Hour only patterns
955                         DateTime t2 = DateTime.Today + new TimeSpan (5,25,0);
956                         DateTime t1 = DateTime.Parse ("05:25");
957                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#C1");
958                         t2 = DateTime.Today + new TimeSpan (5,25,13);
959                         t1 = DateTime.Parse ("05:25:13");
960                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#B2");
961
962                         // Test with different date formats
963                         t1 = DateTime.Parse ("05:25 02/25/2002", USCultureInfo);
964                         Assert.AreEqual (myTicks[3], t1.Ticks, "#B1");
965                         t1 = DateTime.Parse ("05:25:13 2002-02-25");
966                         Assert.AreEqual (myTicks[4], t1.Ticks, "#B2");
967                         t1 = DateTime.Parse ("05:25:13.008 02-2002-25");
968                         Assert.AreEqual (myTicks[2], t1.Ticks, "#B3");
969                         t1 = DateTime.Parse ("05:25:13.008 Feb 25 2002");
970                         Assert.AreEqual (myTicks[2], t1.Ticks, "#B4");
971                         t1 = DateTime.Parse ("05:25:13.008 25 Feb 2002");
972                         Assert.AreEqual (myTicks[2], t1.Ticks, "#B5");
973
974                         // Add AM and day of the week
975                         t1 = DateTime.Parse ("AM 05:25:13 2002-02-25");
976                         Assert.AreEqual (myTicks[4], t1.Ticks, "#C1");
977                         t1 = DateTime.Parse ("Monday05:25 02/25/2002", USCultureInfo);
978                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C2");
979                         t1 = DateTime.Parse ("Mon 05:25 AM 02/25/2002", USCultureInfo);
980                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C3");
981                         t1 = DateTime.Parse ("AM 05:25 Monday, 02/25/2002", USCultureInfo);
982                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C4");
983                         t1 = DateTime.Parse ("05:25 02/25/2002 Monday", USCultureInfo);
984                         Assert.AreEqual (myTicks[3], t1.Ticks, "#C5");
985                         t1 = DateTime.Parse ("PM 03:25:13.008 02-2002-25");
986                         Assert.AreEqual (myTicks[1], t1.Ticks, "#C6");
987
988                         // ASP.NET QuickStarts
989                         t2 = new DateTime (2002, 10, 7, 15, 6, 0);
990                         t1 = DateTime.Parse ("3:06 PM 10/7/2002", USCultureInfo);
991                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D1");
992                         t2 = new DateTime (2002, 10, 7, 15, 6, 0);
993                         t1 = DateTime.Parse ("3:06 pm 10/7/2002", USCultureInfo);
994                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D2");
995                         t2 = new DateTime (2002, 10, 7, 3, 6, 0);
996                         t1 = DateTime.Parse ("3:06 AM 10/7/2002", USCultureInfo);
997                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D3");
998                         t2 = new DateTime (2002, 10, 7, 3, 6, 0);
999                         t1 = DateTime.Parse ("3:06 am 10/7/2002", USCultureInfo);
1000                         Assert.AreEqual (t2.Ticks, t1.Ticks, "#D4");
1001                 }
1002
1003                 [Test]
1004                 public void TestParseWithDifferentShortDatePatterns ()
1005                 {
1006                         CultureInfo cultureInfo = new CultureInfo("en-US");
1007                         DateTimeFormatInfo dateFormatInfo = cultureInfo.DateTimeFormat;
1008                         DateTime t1 = DateTime.Parse ("02/01/2003", cultureInfo);
1009                         Assert.AreEqual (myTicks[7], t1.Ticks, "#A1");
1010
1011                         // Day, month year behaviour
1012                         dateFormatInfo.ShortDatePattern = "dd/MM/yyyy";
1013                         t1 = DateTime.Parse ("01/02/03", cultureInfo);
1014                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B1");
1015                         t1 = DateTime.Parse ("01/02/2003", cultureInfo);
1016                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B2");
1017                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1018                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B3");
1019                         t1 = DateTime.Parse ("01/Feb/03", cultureInfo);
1020                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B4");
1021                         t1 = DateTime.Parse ("Feb/01/03", cultureInfo);
1022                         Assert.AreEqual (myTicks[7], t1.Ticks, "#B5");
1023
1024                         // Month, day year behaviour
1025                         dateFormatInfo.ShortDatePattern = "MM/dd/yyyy";
1026                         t1 = DateTime.Parse ("02/01/03", cultureInfo);
1027                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C1");
1028                         t1 = DateTime.Parse ("02/01/2003", cultureInfo);
1029                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C2");
1030                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1031                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C3");
1032                         t1 = DateTime.Parse ("01/Feb/03", cultureInfo);
1033                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C4");
1034                         t1 = DateTime.Parse ("Feb/01/03", cultureInfo);
1035                         Assert.AreEqual (myTicks[7], t1.Ticks, "#C5");
1036
1037                         // Year, month day behaviour
1038                         dateFormatInfo.ShortDatePattern = "yyyy/MM/dd";
1039                         t1 = DateTime.Parse ("03/02/01", cultureInfo);
1040                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D1");
1041                         t1 = DateTime.Parse ("02/01/2003", cultureInfo);
1042                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D2");
1043                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1044                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D3");
1045                         t1 = DateTime.Parse ("03/Feb/01", cultureInfo);
1046                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D4");
1047                         t1 = DateTime.Parse ("Feb/03/01", cultureInfo);
1048                         Assert.AreEqual (myTicks[7], t1.Ticks, "#D5");
1049
1050                         // Year, day month behaviour
1051                         // Note that no culture I am aware of has this pattern, and indeed
1052                         dateFormatInfo.ShortDatePattern = "yyyy/dd/MM";
1053                         t1 = DateTime.Parse ("03/01/02", cultureInfo);
1054                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E1");
1055                         t1 = DateTime.Parse ("01/02/2003", cultureInfo);
1056                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E2");
1057 #if NET_2_0
1058                         t1 = DateTime.Parse ("2003/01/02", cultureInfo);
1059                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E3");
1060 #else
1061                         t1 = DateTime.Parse ("2003/02/01", cultureInfo);
1062                         Assert.AreEqual (myTicks[7], t1.Ticks, "#E3");
1063 #endif
1064                         // For some reason the following throws an exception on .Net
1065                         // t1 = DateTime.Parse ("03/Feb/01", cultureInfo);
1066                         // Assert.AreEqual (myTicks[7], t1.Ticks, "#E4");
1067                         // t1 = DateTime.Parse ("03/01/Feb", cultureInfo);
1068                         // Assert.AreEqual (myTicks[7], t1.Ticks, "#E5");
1069                         // t1 = DateTime.Parse ("Feb/01/03", cultureInfo);
1070                         // Assert.AreEqual (myTicks[7], t1.Ticks, "#E6");
1071                 }
1072
1073                 [Test]
1074                 public void TestParseWithDifferentMonthDayPatterns ()
1075                 {
1076                         CultureInfo cultureInfo = new CultureInfo("en-US");
1077                         DateTimeFormatInfo dateFormatInfo = cultureInfo.DateTimeFormat;
1078                         DateTime t1 = DateTime.Parse ("Feb 03", cultureInfo);
1079                         Assert.AreEqual (2, t1.Month, "#A1");
1080                         Assert.AreEqual (3, t1.Day, "#A2");
1081
1082                         // Day month behaviour
1083                         dateFormatInfo.MonthDayPattern = "dd/MM";
1084 #if NET_2_0
1085                         t1 = DateTime.Parse ("Feb 03", cultureInfo);
1086                         Assert.AreEqual (2, t1.Month, "#B1");
1087                         Assert.AreEqual (1, t1.Day, "#B2");
1088                         Assert.AreEqual (2003, t1.Year, "#B3");
1089 #else // In .Net 1.0 "Feb 03" is always Feb 3rd (and not Feb 2003).
1090                         t1 = DateTime.Parse ("Feb 03", cultureInfo);
1091                         Assert.AreEqual (2, t1.Month, "#B4");
1092                         Assert.AreEqual (3, t1.Day, "#B5");
1093 #endif
1094                         t1 = DateTime.Parse ("03/02", cultureInfo);
1095                         Assert.AreEqual (2, t1.Month, "#B6");
1096                         Assert.AreEqual (3, t1.Day, "#B7");
1097                         t1 = DateTime.Parse ("03 Feb", cultureInfo);
1098                         Assert.AreEqual (2, t1.Month, "#B8");
1099                         Assert.AreEqual (3, t1.Day, "#B9");
1100
1101                         // Month day behaviour
1102                         dateFormatInfo.MonthDayPattern = "MM/dd";
1103                         t1 = DateTime.Parse ("Feb 03", cultureInfo);
1104                         Assert.AreEqual (2, t1.Month, "#C1");
1105                         Assert.AreEqual (3, t1.Day, "#C2");
1106                         t1 = DateTime.Parse ("02/03", cultureInfo);
1107                         Assert.AreEqual (2, t1.Month, "#C3");
1108                         Assert.AreEqual (3, t1.Day, "#C4");
1109                         t1 = DateTime.Parse ("03 Feb", cultureInfo);
1110                         Assert.AreEqual (2, t1.Month, "#C5");
1111                         Assert.AreEqual (3, t1.Day, "#C6");
1112                 }
1113
1114                 [Test]
1115                 public void TestParse3 ()
1116                 {
1117                         string s = "Wednesday, 09 June 2004";
1118                         DateTime.ParseExact (s, "dddd, dd MMMM yyyy", CultureInfo.InvariantCulture);
1119                         try {
1120                                 DateTime.ParseExact (s, "dddd, dd MMMM yyyy", new CultureInfo ("ja-JP"));
1121                                 Assert.Fail ("ja-JP culture does not support format \"dddd, dd MMMM yyyy\"");
1122                         } catch (FormatException) {
1123                         }
1124
1125                         // Ok, now we can assume ParseExact() works expectedly.
1126
1127                         DateTime.Parse (s, CultureInfo.InvariantCulture, DateTimeStyles.AllowWhiteSpaces);
1128                         DateTime.Parse (s, new CultureInfo ("ja-JP"), DateTimeStyles.AllowWhiteSpaces);
1129                         //DateTime.Parse (s, null); currently am not sure if it works for _every_ culture.
1130                 }
1131
1132
1133                 [Test] // bug #74936
1134                 public void TestParse4 ()
1135                 {
1136                         try {
1137                                 DateTime.Parse("1");
1138                                 Assert.Fail ("#1");
1139                         } catch (FormatException) {
1140                         }
1141
1142                         try {
1143                                 DateTime.Parse("1000");
1144                                 Assert.Fail ("#2");
1145                         } catch (FormatException) {
1146                         }
1147
1148                         try {
1149                                 DateTime.Parse("8:");
1150                                 Assert.Fail ("#3");
1151                         } catch (FormatException) {
1152                         }
1153                 }
1154
1155                 [Test] // bug #71289
1156                 public void Parse_Bug71289a ()
1157                 {
1158                         DateTime.Parse ("Sat,,,,,, 01 Oct 1994 03:00:00", CultureInfo.InvariantCulture);
1159                 }
1160
1161                 [Test]
1162                 public void Parse_Bug71289b ()
1163                 {
1164                         // more example...
1165                         DateTime.Parse ("Sat,,, 01,,, Oct,,, ,,,1994 03:00:00", CultureInfo.InvariantCulture);
1166                 }
1167
1168 #if NET_2_0
1169                 [Test]
1170                 [ExpectedException (typeof (FormatException))]
1171                 public void Parse_CommaAfterHours ()
1172                 {
1173                         // ',' after 03 is not allowed.
1174                         DateTime.Parse ("Sat,,, 01,,, Oct,,, ,,,1994 03,:00:00", CultureInfo.InvariantCulture);
1175                 }
1176 #endif
1177
1178                 [Test] // bug #72788
1179                 public void Parse_Bug72788 ()
1180                 {
1181                         DateTime dt = DateTime.Parse ("21/02/05", new CultureInfo ("fr-FR"));
1182                         Assert.AreEqual (2005, dt.Year, "#1");
1183                         Assert.AreEqual (02, dt.Month, "#2");
1184                         Assert.AreEqual (21, dt.Day, "#3");
1185                 }
1186
1187                 [Test] // bug #322510
1188                 public void Parse_HourDesignator ()
1189                 {
1190                         DateTime dt;
1191                         DateTime now = DateTime.Now;
1192
1193                         dt = DateTime.Parse ("12:00:00 AM", new CultureInfo ("en-US"));
1194                         Assert.AreEqual (now.Year, dt.Year, "#A1");
1195                         Assert.AreEqual (now.Month, dt.Month, "#A2");
1196                         Assert.AreEqual (now.Day, dt.Day, "#A3");
1197                         Assert.AreEqual (0, dt.Hour, "#A4");
1198                         Assert.AreEqual (0, dt.Minute, "#A5");
1199                         Assert.AreEqual (0, dt.Second, "#A6");
1200                         Assert.AreEqual (0, dt.Millisecond, "#A7");
1201
1202                         dt = DateTime.Parse ("12:00:00 PM", new CultureInfo ("en-US"));
1203                         Assert.AreEqual (now.Year, dt.Year, "#B1");
1204                         Assert.AreEqual (now.Month, dt.Month, "#B2");
1205                         Assert.AreEqual (now.Day, dt.Day, "#B3");
1206                         Assert.AreEqual (12, dt.Hour, "#B4");
1207                         Assert.AreEqual (0, dt.Minute, "#B5");
1208                         Assert.AreEqual (0, dt.Second, "#B6");
1209                         Assert.AreEqual (0, dt.Millisecond, "#B7");
1210                 }
1211
1212                 [Test]
1213                 // FIXME: This test doesn't work on cultures like es-DO which have patterns
1214                 // for both dd/MM/yyyy & MM/dd/yyyy
1215                 [Category ("NotWorking")]
1216                 public void Parse_Bug53023a ()
1217                 {
1218                         foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.SpecificCultures)) {
1219                                 FormatException e = null;
1220                                 try {
1221                                         // this fails for MOST culture under MS 1.1 SP1
1222                                         DateTime.Parse ("8/16/2005", ci);
1223                                 }
1224                                 catch (FormatException fe) {
1225                                         e = fe;
1226                                 }
1227                                 string c = ci.ToString ();
1228                                 switch (c) {
1229                                 case "af-ZA":
1230                                 case "en-CB":
1231                                 case "en-PH":
1232                                 case "en-US":
1233                                 case "en-ZA":
1234                                 case "en-ZW":
1235                                 case "es-PA":
1236                                 case "eu-ES":
1237                                 case "fa-IR":
1238                                 case "fr-CA":
1239                                 case "hu-HU":
1240                                 case "ja-JP":
1241                                 case "ko-KR":
1242                                 case "lv-LV":
1243                                 case "lt-LT":
1244                                 case "mn-MN":
1245                                 case "pl-PL":
1246                                 case "sq-AL":
1247                                 case "sv-SE":
1248                                 case "sw-KE":
1249                                 case "zh-CN":
1250                                 case "zh-TW":
1251 #if NET_2_0
1252                                 case "ns-ZA":
1253                                 case "se-SE":
1254                                 case "sma-SE":
1255                                 case "smj-SE":
1256                                 case "tn-ZA":
1257                                 case "xh-ZA":
1258                                 case "zu-ZA":
1259 #endif
1260                                         Assert.IsNull (e, c);
1261                                         break;
1262                                 default:
1263                                         Assert.IsNotNull (e, c);
1264                                         break;
1265                                 }
1266                         }
1267                 }
1268
1269                 [Test]
1270                 public void Parse_Bug53023b ()
1271                 {
1272                         foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.SpecificCultures)) {
1273                                 DateTime.Parse ("01-Sep-05", ci);
1274                                 DateTime.Parse ("4:35:35 AM", ci);
1275                         }
1276                 }
1277
1278                 [Test]
1279                 [ExpectedException (typeof (FormatException))]
1280                 [Category ("NotWorking")]
1281                 public void Parse_RequireSpaceSeparator ()
1282                 {
1283                         DateTime.Parse ("05:25:132002-02-25", CultureInfo.InvariantCulture);
1284                 }
1285
1286                 [Test]
1287                 [ExpectedException (typeof (FormatException))]
1288                 public void Parse_DontAccept2DigitsYears ()
1289                 {
1290                         // don't allow 2 digit years where we require 4.
1291                         DateTime.ParseExact ("05", "yyyy", CultureInfo.InvariantCulture);
1292                 }
1293
1294                 [Test]
1295                 [ExpectedException (typeof (FormatException))]
1296                 public void Parse_DontAcceptEmptyHours ()
1297                 {
1298                         DateTime.ParseExact (":05", "H:m", CultureInfo.InvariantCulture);
1299                 }
1300
1301                 [Test]
1302                 [ExpectedException (typeof (FormatException))]
1303                 public void Parse_DontAcceptEmptyMinutes ()
1304                 {
1305                         DateTime.ParseExact ("0::0", "H:m:s", CultureInfo.InvariantCulture);
1306                 }
1307
1308                 [Test]
1309                 public void ParseCOMDependentFormat ()
1310                 {
1311                         // Japanese format.
1312                         DateTime.Parse (String.Format (
1313                                 "{0}\u5E74{1}\u6708{2}\u65E5 {3}\u6642{4}\u5206{5}\u79D2",
1314                                 2006, 3, 1, 15, 32, 42), new CultureInfo (""));
1315
1316                         try {
1317                                 // incorrect year mark.
1318                                 DateTime.Parse (String.Format (
1319                                         "{0}\u4E00{1}\u6708{2}\u65E5 {3}\u6642{4}\u5206{5}\u79D2",
1320                                         2006, 3, 1, 15, 32, 42), new CultureInfo (""));
1321                                 Assert.Fail ();
1322                         } catch (FormatException) {
1323                         }
1324                 }
1325
1326                 [Test]
1327                 [ExpectedException(typeof (FormatException))]
1328                 public void ParseFormatException1 ()
1329                 {
1330                         // Following string is not a correct French date i.e.
1331                         // MM/dd/yyyy HH:mm:ss since it expects d/M/yyyy HH:mm:ss
1332                         // instead (however fr-FR accepts both MM/dd/yyyy and
1333                         // dd/MM/yyyy, which means that we can't just throw exceptions 
1334                         // on overflow).
1335                         String frDateTime = "11/13/2003 11:28:15";
1336                         IFormatProvider format = new CultureInfo("fr-FR", true);
1337                         DateTime t1 = DateTime.Parse(frDateTime, format);
1338                 }
1339         
1340                 [Test]
1341 #if NET_2_0
1342                 [ExpectedException(typeof (FormatException))]
1343 #else
1344                 [ExpectedException(typeof (ArgumentOutOfRangeException))]
1345 #endif
1346                 public void ParseFormatExceptionForInvalidYear ()
1347                 {
1348                         // Bug #77633.  In .NET 1..1, the expected exception is ArgumentOutOfRangeException
1349                         // In .NET 2.0, the expected exception is FormatException
1350                         // build a string with the year of 5 digits
1351                         string s = "1/1/10000";
1352                         DateTime dt = DateTime.Parse (s);
1353                 }
1354         
1355                 [Test]
1356                 public void TestOA ()
1357                 {
1358                         double number=5000.41443;
1359                         DateTime d = DateTime.FromOADate(number);
1360                         DTAssertEquals (d, new DateTime(1913, 9, 8, 9, 56, 46, 0), Resolution.Second, "#1");
1361                         Assert.AreEqual (d.ToOADate(), number, "#2");
1362                 }
1363
1364                 [Test]
1365                 public void ParseAllowsQueerString ()
1366                 {
1367                         DateTime.Parse ("Sat,,,,,, 01 Oct 1994 03:00:00", CultureInfo.InvariantCulture);
1368                 }
1369
1370                 [Test]
1371                 public void ParseUtcNonUtc ()
1372                 {
1373                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("es-ES");
1374
1375                         CultureInfo ci;
1376                         string s, s2, s3, d;
1377                         DateTime dt;
1378                         DateTimeFormatInfo dfi = DateTimeFormatInfo.InvariantInfo;
1379                         s = dfi.UniversalSortableDateTimePattern;
1380                         s2 = "r";
1381
1382                         s3 = "s";
1383
1384                         long tick1 = 631789220960000000; // 2003-01-23 12:34:56 as is
1385                         long tick2 = TimeZone.CurrentTimeZone.ToLocalTime (new DateTime (tick1)).Ticks; // adjusted to local time
1386
1387                         // invariant
1388                         ci = CultureInfo.InvariantCulture;
1389
1390                         d = "2003/01/23 12:34:56";
1391                         dt = DateTime.Parse (d, ci);
1392                         Assert.AreEqual (tick1, dt.Ticks, "#1:" + d);
1393
1394                         d = "2003/01/23 12:34:56 GMT";
1395                         dt = DateTime.Parse (d, ci);
1396                         Assert.AreEqual (tick2, dt.Ticks, "#2:" + d);
1397
1398                         d = "Thu, 23 Jan 2003 12:34:56 GMT";
1399                         dt = DateTime.ParseExact (d, s2, ci);
1400                         Assert.AreEqual (tick1, dt.Ticks, "#3:" + d);
1401
1402                         d = "2003-01-23 12:34:56Z";
1403                         dt = DateTime.ParseExact (d, s, ci);
1404                         Assert.AreEqual (tick1, dt.Ticks, "#4:" + d);
1405
1406                         d = "2003-01-23T12:34:56";
1407                         dt = DateTime.ParseExact (d, s3, ci);
1408                         Assert.AreEqual (tick1, dt.Ticks, "#5:" + d);
1409
1410                         // ja-JP ... it should be culture independent
1411                         ci = new CultureInfo ("ja-JP");
1412
1413                         d = "2003/01/23 12:34:56";
1414                         dt = DateTime.Parse (d, ci);
1415                         Assert.AreEqual (tick1, dt.Ticks, "#6:" + d);
1416
1417                         d = "2003/01/23 12:34:56 GMT";
1418                         dt = DateTime.Parse (d, ci);
1419                         Assert.AreEqual (tick2, dt.Ticks, "#7:" + d);
1420
1421                         d = "Thu, 23 Jan 2003 12:34:56 GMT";
1422                         dt = DateTime.ParseExact (d, s2, ci);
1423                         Assert.AreEqual (tick1, dt.Ticks, "#8:" + d);
1424
1425                         d = "2003-01-23 12:34:56Z";
1426                         dt = DateTime.ParseExact (d, s, ci);
1427                         Assert.AreEqual (tick1, dt.Ticks, "#9:" + d);
1428
1429                         d = "2003-01-23T12:34:56";
1430                         dt = DateTime.ParseExact (d, s3, ci);
1431                         Assert.AreEqual (tick1, dt.Ticks, "#10:" + d);
1432                 }
1433
1434                 [Test]
1435                 public void TimeZoneAdjustment ()
1436                 {
1437                         CultureInfo ci = Thread.CurrentThread.CurrentCulture;
1438                         try {
1439                                 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US");
1440                                 DateTime d1 = DateTime.ParseExact ("2004/06/30", "yyyy/MM/dd", null);
1441                                 DateTime d2 = DateTime.ParseExact ("2004/06/30Z", "yyyy/MM/dd'Z'", null);
1442                                 DateTime d3 = DateTime.ParseExact ("Wed, 30 Jun 2004 00:00:00 GMT", "ddd, dd MMM yyyy HH':'mm':'ss 'GMT'", null);
1443                                 DateTime d4 = DateTime.ParseExact ("2004-06-30 00:00:00Z", "yyyy'-'MM'-'dd HH':'mm':'ss'Z'", null);
1444                                 StringWriter sw = new StringWriter ();
1445                                 sw.Write ("{0} {1}", d1.Ticks, d1);
1446                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#1");
1447                                 sw.GetStringBuilder ().Length = 0;
1448                                 sw.Write ("{0} {1}", d2.Ticks, d2);
1449                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#2");
1450                                 sw.GetStringBuilder ().Length = 0;
1451                                 sw.Write ("{0} {1}", d3.Ticks, d3);
1452                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#3");
1453                                 sw.GetStringBuilder ().Length = 0;
1454                                 sw.Write ("{0} {1}", d4.Ticks, d4);
1455                                 Assert.AreEqual ("632241504000000000 6/30/2004 12:00:00 AM", sw.ToString (), "#4");
1456                         } finally {
1457                                 Thread.CurrentThread.CurrentCulture = ci;
1458                         }
1459
1460                         // bug #76082
1461                         Assert.AreEqual (DateTime.MinValue, DateTime.ParseExact ("00010101T00:00:00",
1462                                         "yyyyMMdd'T'HH':'mm':'ss", DateTimeFormatInfo.InvariantInfo), "#5");
1463                 }
1464
1465                 [Test]
1466                 public void DateTimeStylesAdjustToUniversal ()
1467                 {
1468                         // bug #75995 : AdjustToUniversal
1469                         DateTime t1 = DateTime.Parse ("2005-09-05T22:29:00Z",
1470                                 CultureInfo.InvariantCulture,
1471                                 DateTimeStyles.AdjustToUniversal);
1472                         Assert.AreEqual ("2005-09-05 22:29:00Z", t1.ToString ("u"));
1473                 }
1474
1475                 [Test]
1476                 [ExpectedException (typeof (ArgumentException))]
1477                 public void FromOADate_Min () 
1478                 {
1479                         // minimum documented value isn't inclusive
1480                         DateTime.FromOADate (-657435.0d);
1481                 }
1482
1483                 [Test]
1484                 [ExpectedException (typeof (ArgumentException))]
1485                 public void FromOADate_Max () 
1486                 {
1487                         // maximum documented value isn't inclusive
1488                         DateTime.FromOADate (2958466.0d);
1489                 }
1490
1491                 [Test]
1492                 public void FromOADate ()
1493                 {
1494                         // Note: OA (OLE Automation) dates aren't timezone sensitive
1495                         Assert.AreEqual (599264352000000000, DateTime.FromOADate (0.0d).Ticks, "#1");
1496                         Assert.AreEqual (31242239136000000, DateTime.FromOADate (-657434.999d).Ticks, "#2");
1497                         Assert.AreEqual (3155378975136000000, DateTime.FromOADate (2958465.999d).Ticks, "#3");
1498                 }
1499
1500                 [Test]
1501                 public void ToOADate ()
1502                 {
1503                         // Note: OA (OLE Automation) dates aren't timezone sensitive
1504                         DateTime d = new DateTime (0);
1505                         Assert.AreEqual (0.0d, d.ToOADate (), "#1");
1506                         d = new DateTime (599264352000000000);
1507                         Assert.AreEqual (0.0d, d.ToOADate (), "#2");
1508                         d = new DateTime (31242239136000000);
1509                         Assert.AreEqual (-657434.999d, d.ToOADate (), "#3");
1510                         d = new DateTime (3155378975136000000);
1511                         Assert.AreEqual (2958465.999d, d.ToOADate (), "#4");
1512                 }
1513
1514                 [Test]
1515                 public void ToOADate_OverMax ()
1516                 {
1517                         DateTime d = new DateTime (3155378975136000001);
1518                         Assert.AreEqual (2958465.999d, d.ToOADate ());
1519                 }
1520
1521                 [Test]
1522                 public void ToOADate_MaxValue ()
1523                 {
1524                         Assert.AreEqual (2958465.99999999d, DateTime.MaxValue.ToOADate ());
1525                 }
1526
1527                 [Test]
1528                 public void ToOADate_UnderMin ()
1529                 {
1530                         DateTime d = new DateTime (31242239135999999);
1531                         Assert.AreEqual (-657434.999d, d.ToOADate ());
1532                 }
1533
1534                 [Test]
1535                 public void ToOADate_MinValue ()
1536                 {
1537                         Assert.AreEqual (0, DateTime.MinValue.ToOADate ());
1538                 }
1539
1540                 [Test] // bug52075
1541                 public void MaxValueYear ()
1542                 {
1543                         Assert.AreEqual ("9999", DateTime.MaxValue.Year.ToString ());
1544                 }
1545
1546                 [Test]
1547                 public void X509Certificate () 
1548                 {
1549                         // if this test fails then *ALL* or *MOST* X509Certificate tests will also fails
1550                         DateTime dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null);
1551 #if NET_2_0
1552                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "#1");
1553                         dt = dt.ToUniversalTime ();
1554                         Assert.AreEqual (DateTimeKind.Utc, dt.Kind, "#2");
1555 #else
1556                         dt = dt.ToUniversalTime ();
1557 #endif
1558                         Assert.AreEqual ("03/12/1996 18:38:47", dt.ToString (), "#3");
1559
1560                         // technically this is invalid (PKIX) because of the missing seconds but it exists so...
1561                         dt = DateTime.ParseExact ("9602231915Z", "yyMMddHHmmZ", null);
1562 #if NET_2_0
1563                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "#4");
1564                         dt = dt.ToUniversalTime ();
1565                         Assert.AreEqual (DateTimeKind.Utc, dt.Kind, "#5");
1566 #else
1567                         dt = dt.ToUniversalTime ();
1568 #endif
1569                         Assert.AreEqual ("02/23/1996 19:15:00", dt.ToString (), "#6");
1570
1571 #if NET_2_0
1572                         dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null, DateTimeStyles.AdjustToUniversal);
1573                         Assert.AreEqual (DateTimeKind.Utc, dt.Kind, "#7");
1574 #endif
1575                 }
1576
1577                 [Test]
1578                 public void ZLiteral ()
1579                 {
1580                         // However, "Z" and "'Z'" are different.
1581                         DateTime dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmss'Z'", null);
1582                         DateTime dtz = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null);
1583 #if NET_2_0
1584                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "#1");
1585                         dt = dt.ToLocalTime ();
1586                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "#2");
1587                         Assert.AreEqual (DateTimeKind.Local, dtz.Kind, "#3");
1588 #else
1589                         dt = dt.ToLocalTime ();
1590 #endif
1591                         Assert.AreEqual (dt, dtz, "#4");
1592                 }
1593
1594                 [Test] // bug 56436
1595                 public void QuotedFormat ()
1596                 {
1597                         string date = "28/Mar/2004:19:12:37 +0200";
1598                         string [] expectedFormats = {"dd\"/\"MMM\"/\"yyyy:HH:mm:ss zz\"00\""};
1599                         DateTime.ParseExact (date, expectedFormats, null, DateTimeStyles.AllowWhiteSpaces);
1600                 }
1601
1602                 [Test]
1603                 public void CultureIndependentTests ()
1604                 {
1605                         // Here I aggregated some tests mainly because of test 
1606                         // performance (iterating all the culture is heavy process).
1607                 
1608                         for (int i = 0; i < 32768; i++) {
1609                                 CultureInfo ci = null;
1610                                 string stage = "init";
1611                                 try {
1612                                         try {
1613                                                 ci = new CultureInfo (i);
1614                                                 // In fact InvatiantCulture is not neutral.
1615                                                 // See bug #59716.
1616                                                 if (ci.IsNeutralCulture && ci != CultureInfo.InvariantCulture)
1617                                                         continue;
1618                                         } catch (Exception) {
1619                                                 continue;
1620                                         }
1621                                         Thread.CurrentThread.CurrentCulture = ci;
1622                                         DateTime dt;
1623
1624                                         // Common patterns
1625                                         // X509Certificate pattern is _always_ accepted.
1626                                         stage = "1";
1627                                         dt = DateTime.ParseExact ("19960312183847Z", "yyyyMMddHHmmssZ", null);
1628 #if NET_1_1
1629                                         stage = "2";
1630                                         // culture 1025 ar-SA fails
1631         //                              if (i != 127)
1632         //                                      dt = DateTime.Parse ("19960312183847Z");
1633 #endif
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                                         if (ci.LCID != 1054) {
1645                                                 try {
1646                                                         stage = "5";
1647                                                         dt = DateTime.Parse ("Sat, 29 Oct 1994 12:00:00 GMT", ci);
1648                                                 } catch (FormatException ex) {
1649                                                         Assert.Fail (String.Format ("stage 5.1 RFC1123: culture {0} {1} failed: {2}", i, ci, ex.Message));
1650                                                 }
1651
1652                                                 // bug #47720
1653                                                 if (dt != TimeZone.CurrentTimeZone.ToUniversalTime (dt))
1654                                                         Assert.IsTrue (12 != dt.Hour, String.Format ("bug #47720 on culture {0} {1}", ci.LCID, ci));
1655
1656                                                 // variant of RFC1123
1657                                                 try {
1658                                                         stage = "6";
1659                                                         dt = DateTime.Parse ("Sat, 1 Oct 1994 03:00:00", ci);
1660                                                 } catch (FormatException ex) {
1661                                                         Assert.Fail (String.Format ("stage 6.1 RFC1123 variant: culture {0} {1} failed: {2}", i, ci, ex.Message));
1662                                                 }
1663                                                 stage = "7";
1664                                                 Assert.AreEqual (3, dt.Hour, String.Format ("stage 7.1 RFC1123 variant on culture {0} {1}", ci.LCID, ci));
1665                                         }
1666
1667                                         switch (ci.LCID) {
1668                                         case 1025: // ar-SA
1669                                         case 1054: // th-TH
1670                                         case 1125: // div-MV
1671                                                 break;
1672                                         default:
1673                                                 stage = "8";
1674                                                 // 02/25/2002 04:25:13 as is
1675                                                 long tick1 = 631502079130000000;
1676                                                 long tick2 = TimeZone.CurrentTimeZone.ToLocalTime (new DateTime (tick1)).Ticks; // adjusted to local time
1677                                                 dt = DateTime.Parse ("Mon, 25 Feb 2002 04:25:13 GMT", ci);
1678                                                 Assert.AreEqual (tick2, dt.Ticks, String.Format ("GMT variant. culture={0} {1}", i, ci));
1679                                                 break;
1680                                         }
1681
1682 #if NET_1_1
1683                                         // ka-GE rejects these formats under MS.NET. 
1684                                         // I wonder why. Also, those tests fail under .NET 1.0.
1685                                         if (ci.LCID != 1079) {
1686                                                 stage = "9";
1687                                                 dt = DateTime.Parse ("2002-02-25");
1688                                                 stage = "10";
1689                                                 dt = DateTime.Parse ("2002-02-25Z");
1690                                                 stage = "11";
1691                                                 dt = DateTime.Parse ("2002-02-25T19:20:00+09:00");
1692                                                 switch (ci.LCID) {
1693                                                 case 1038: // FIXME: MS passes this culture.
1694                                                 case 1062: // FIXME: MS passes this culture.
1695                                                 case 1078: // MS does not pass this culture. Dunno why.
1696                                                         break;
1697                                                 default:
1698 #if ONLY_1_1
1699                                                         // bug #58938
1700                                                         stage = "12";
1701                                                         dt = DateTime.Parse ("2002#02#25 19:20:00");
1702                                                         // this stage fails under MS 2.0
1703                                                         stage = "13";
1704                                                         Assert.AreEqual (19, dt.Hour, String.Format ("bug #58938 on culture {0} {1}", ci.LCID, ci));
1705 #endif
1706                                                         break;
1707                                                 }
1708                                                 stage = "14";
1709                                                 dt = DateTime.Parse ("2002-02-25 12:01:03");
1710 #if ONLY_1_1
1711                                                 stage = "15";
1712                                                 dt = DateTime.Parse ("2002#02#25 12:01:03");
1713                                                 stage = "16";
1714                                                 dt = DateTime.Parse ("2002%02%25 12:01:03");
1715 #endif
1716                                                 stage = "17";
1717                                                 if (ci.DateTimeFormat.TimeSeparator != ".")
1718                                                         dt = DateTime.Parse ("2002.02.25 12:01:03");
1719                                                 stage = "18";
1720                                                 dt = DateTime.Parse ("2003/01/23 01:34:56 GMT");
1721                                                 dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1722                                                 Assert.AreEqual (1, dt.Hour, String.Format ("stage 18.1 RFC1123 UTC {0} {1}", i, ci));
1723                                                 stage = "19";
1724                                                 // This test was fixed from 12:34:56 to
1725                                                 // 01:34:56 since 1078 af-ZA failed
1726                                                 // because of hour interpretation
1727                                                 // difference (af-ZA expects 0).
1728                                                 // (IMHO it is MS BUG though.)
1729                                                 dt = DateTime.Parse ("2003/01/23 12:34:56 GMT");
1730                                                 dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1731                                                 if (i != 1078)
1732                                                         Assert.AreEqual (12, dt.Hour, String.Format ("stage 18.1 RFC1123 UTC {0} {1}", i, ci));
1733                                         }
1734 #endif
1735                                 } catch (FormatException ex) {
1736                                         Assert.Fail (String.Format ("stage {3}: Culture {0} {1} failed: {2}", i, ci, ex.Message, stage));
1737                                 }
1738                         }
1739                 }
1740
1741                 [Test]
1742                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1743                 public void ToFileTime_MinValue () 
1744                 {
1745                         DateTime.FromFileTime (Int64.MinValue);
1746                 }
1747
1748                 [Test]
1749                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1750                 public void ToFileTime_Negative () 
1751                 {
1752                         DateTime.FromFileTime (-1);
1753                 }
1754
1755                 [Test]
1756                 public void ToFileTime () 
1757                 {
1758                         long u = DateTime.FromFileTimeUtc (0).Ticks;
1759                         Assert.AreEqual (504911232000000000, u, "#A1");
1760                         long max = DateTime.MaxValue.Ticks - 504911232000000000; // w32file_epoch
1761                         Assert.AreEqual (3155378975999999999, DateTime.FromFileTimeUtc (max).Ticks, "#A2");
1762
1763                         long t = DateTime.FromFileTime (0).Ticks;
1764                         Assert.IsTrue (t > (u - TimeSpan.TicksPerDay), "#B1");
1765                         Assert.IsTrue (t < (u + TimeSpan.TicksPerDay), "#B2");
1766                 }
1767
1768                 [Test]
1769                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1770                 public void ToFileTimeUtc_MinValue () 
1771                 {
1772                         DateTime.FromFileTimeUtc (Int64.MinValue);
1773                 }
1774
1775                 [Test]
1776                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
1777                 public void ToFileTimeUtc_Negative () 
1778                 {
1779                         DateTime.FromFileTimeUtc (-1);
1780                 }
1781
1782                 [Test]
1783                 public void Milliseconds ()
1784                 {
1785                         DateTime dt = DateTime.Parse ("2004-05-26T03:29:01.1234567-07:00");
1786                         dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1787                         Assert.AreEqual (632211641411234567, dt.Ticks);
1788                 }
1789
1790                 [Test]
1791 #if NET_2_0
1792                 [ExpectedException (typeof (FormatException))]
1793 #else
1794                 [Ignore ("Works only under MS 1.x (not Mono or MS 2.0).")]
1795 #endif
1796                 public void ParseNotExact ()
1797                 {
1798                         // The error reported is:
1799                         // String was not recognized as valid DateTime
1800                         DateTime dt = DateTime.Parse ("2004-05-26T03:29:01-07:00 foo");
1801                         dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1802                         Assert.AreEqual (632211641410000000, dt.Ticks);
1803                 }
1804
1805                 [Test]
1806                 public void ParseExact_Bug80094 ()
1807                 {
1808                         // we can safely change the curernt culture, as the original value will
1809                         // be restored on TearDown
1810                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("ja-JP");
1811                         string y = string.Format ("{0}-{1}-{2} {3}", DateTime.Now.Year.ToString (),
1812                                 "11", "29", "06:34");
1813                         DateTime date = DateTime.ParseExact (y, "yyyy-MMM-dd hh:mm", null);
1814                         Assert.AreEqual (DateTime.Now.Year, date.Year, "#1");
1815                         Assert.AreEqual (11, date.Month, "#2");
1816                         Assert.AreEqual (29, date.Day, "#3");
1817                         Assert.AreEqual (6, date.Hour, "#4");
1818                         Assert.AreEqual (34, date.Minute, "#5");
1819                         Assert.AreEqual (0, date.Second, "#6");
1820                         Assert.AreEqual (0, date.Millisecond, "#7");
1821                 }
1822
1823 #if NET_2_0
1824                 [Test]
1825                 public void ParseExact_Bug324845 ()
1826                 {
1827                         DateTime ctime = new DateTime (2007, 7, 23, 19, 19, 45);
1828                         ctime = ctime.ToUniversalTime ();
1829                         string instr = ctime.ToString ("yyyyMMddHHmmss");
1830
1831                         DateTime t = DateTime.ParseExact (instr, "yyyyMMddHHmmss", null, DateTimeStyles.AssumeUniversal);
1832                         Assert.AreEqual (2007, t.Year);
1833                         Assert.AreEqual (7, t.Month);
1834                         Assert.AreEqual (23, t.Day);
1835                         Assert.AreEqual (19, t.Hour);
1836                         Assert.AreEqual (19, t.Minute);
1837                         Assert.AreEqual (45, t.Second);
1838
1839                 }
1840 #endif
1841
1842                 [Test]
1843                 [ExpectedException (typeof (FormatException))]
1844                 public void ParseExactIsExact()
1845                 {
1846                         DateTime.ParseExact ("2004-05-26T03:29:01-07:00 foo", "yyyy-MM-ddTHH:mm:sszzz", null);
1847                 }
1848
1849                 [Test]
1850                 [ExpectedException (typeof (FormatException))]
1851                 public void ParseExactDoesNotEatZ ()
1852                 {
1853                         DateTime.ParseExact ("2004-05-26T03:29:01", "yyyy-MM-ddTHH:mm:ssZ", null);
1854                 }
1855
1856                 [Test]
1857                 public void ParseExactMilliseconds ()
1858                 {
1859                         DateTime dt = DateTime.ParseExact ("2004-05-26T03:29:01.1234567-07:00", "yyyy-MM-ddTHH:mm:ss.fffffffzzz", null);
1860                         dt = TimeZone.CurrentTimeZone.ToUniversalTime (dt);
1861                         Assert.AreEqual (632211641411234567, dt.Ticks);
1862                 }
1863
1864                 [Test]
1865                 public void NoColonTimeZone ()
1866                 {
1867                         Assert.IsTrue (DateTime.Parse ("2004-05-26T03:29:01-0700").Ticks
1868                                 != DateTime.Parse ("2004-05-26T03:29:01-0800").Ticks);
1869                 }
1870
1871                 [Test]
1872                 public void WithColonTimeZone ()
1873                 {
1874                         Assert.IsTrue (DateTime.Parse ("2004-05-26T03:29:01-07:00").Ticks
1875                                 != DateTime.Parse ("2004-05-26T03:29:01-08:00").Ticks);
1876                 }
1877
1878                 [Test]
1879                 [ExpectedException (typeof (FormatException))]
1880                 public void EmptyFormatPattern ()
1881                 {
1882                         DateTime.ParseExact (String.Empty, String.Empty, null);
1883                 }
1884
1885                 [Test]
1886                 [ExpectedException (typeof (InvalidCastException))]
1887                 public void IConvertible_ToType_Boolean () 
1888                 {
1889                         ((IConvertible)DateTime.Now).ToType (typeof (bool), null);
1890                 }
1891
1892                 [Test]
1893                 [ExpectedException (typeof (InvalidCastException))]
1894                 public void IConvertible_ToType_Byte () 
1895                 {
1896                         ((IConvertible)DateTime.Now).ToType (typeof (byte), null);
1897                 }
1898
1899                 [Test]
1900                 [ExpectedException (typeof (InvalidCastException))]
1901                 public void IConvertible_ToType_Char () 
1902                 {
1903                         ((IConvertible)DateTime.Now).ToType (typeof (char), null);
1904                 }
1905
1906                 [Test]
1907                 public void IConvertible_ToType_DateTime () 
1908                 {
1909                         DateTime dt = DateTime.Now;
1910                         DateTime dt2 = (DateTime) ((IConvertible)dt).ToType (typeof (DateTime), null);
1911                         Assert.IsTrue (dt.Equals (dt2));
1912                 }
1913
1914                 [Test]
1915                 [ExpectedException (typeof (InvalidCastException))]
1916                 public void IConvertible_ToType_DBNull () 
1917                 {
1918                         ((IConvertible)DateTime.Now).ToType (typeof (DBNull), null);
1919                 }
1920
1921                 [Test]
1922                 [ExpectedException (typeof (InvalidCastException))]
1923                 public void IConvertible_ToType_Decimal () 
1924                 {
1925                         ((IConvertible)DateTime.Now).ToType (typeof (decimal), null);
1926                 }
1927
1928                 [Test]
1929                 [ExpectedException (typeof (InvalidCastException))]
1930                 public void IConvertible_ToType_Double () 
1931                 {
1932                         ((IConvertible)DateTime.Now).ToType (typeof (double), null);
1933                 }
1934
1935                 [Test]
1936                 [ExpectedException (typeof (ArgumentNullException))]
1937                 public void IConvertible_ToType_Empty () 
1938                 {
1939                         ((IConvertible)DateTime.Now).ToType (null, null);
1940                 }
1941
1942                 [Test]
1943                 [ExpectedException (typeof (InvalidCastException))]
1944                 public void IConvertible_ToType_Int16 () 
1945                 {
1946                         ((IConvertible)DateTime.Now).ToType (typeof (short), null);
1947                 }
1948
1949                 [Test]
1950                 [ExpectedException (typeof (InvalidCastException))]
1951                 public void IConvertible_ToType_Int32 () 
1952                 {
1953                         ((IConvertible)DateTime.Now).ToType (typeof (int), null);
1954                 }
1955
1956                 [Test]
1957                 [ExpectedException (typeof (InvalidCastException))]
1958                 public void IConvertible_ToType_Int64 () 
1959                 {
1960                         ((IConvertible)DateTime.Now).ToType (typeof (long), null);
1961                 }
1962
1963                 [Test]
1964                 public void IConvertible_ToType_Object () 
1965                 {
1966                         DateTime dt = DateTime.Now;
1967                         object o = ((IConvertible)dt).ToType (typeof (object), null);
1968                         Assert.IsTrue (dt.Equals (o));
1969                 }
1970
1971                 [Test]
1972                 [ExpectedException (typeof (InvalidCastException))]
1973                 public void IConvertible_ToType_SByte () 
1974                 {
1975                         ((IConvertible)DateTime.Now).ToType (typeof (sbyte), null);
1976                 }
1977
1978                 [Test]
1979                 [ExpectedException (typeof (InvalidCastException))]
1980                 public void IConvertible_ToType_Single () 
1981                 {
1982                         ((IConvertible)DateTime.Now).ToType (typeof (float), null);
1983                 }
1984
1985                 [Test]
1986                 public void IConvertible_ToType_String () 
1987                 {
1988                         DateTime dt = DateTime.Now;
1989                         string s = (string) ((IConvertible)dt).ToType (typeof (string), null);
1990                         Assert.AreEqual (s, dt.ToString ());
1991                 }
1992
1993                 [Test]
1994                 [ExpectedException (typeof (InvalidCastException))]
1995                 public void IConvertible_ToType_UInt16 () 
1996                 {
1997                         ((IConvertible)DateTime.Now).ToType (typeof (ushort), null);
1998                 }
1999
2000                 [Test]
2001                 [ExpectedException (typeof (InvalidCastException))]
2002                 public void IConvertible_ToType_UInt32 () 
2003                 {
2004                         ((IConvertible)DateTime.Now).ToType (typeof (uint), null);
2005                 }
2006
2007                 [Test]
2008                 [ExpectedException (typeof (InvalidCastException))]
2009                 public void IConvertible_ToType_UInt64 () 
2010                 {
2011                         ((IConvertible)DateTime.Now).ToType (typeof (ulong), null);
2012                 }
2013
2014                 [Test]
2015                 public void Bug352210 ()
2016                 {
2017                         DateTime dt = DateTime.ParseExact ("2007-06-15T10:30:10.5", "yyyy-MM-ddTHH:mm:ss.f", null);
2018                         Assert.AreEqual (633175002105000000, dt.Ticks, "#1");
2019 #if NET_2_0
2020                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "#2");
2021 #endif
2022                 }
2023
2024                 [Test]
2025                 public void Bug352210_New ()
2026                 {
2027                         long ticksUTC = 633377759060000000;
2028                         long ticksLocal = ticksUTC + TimeZone.CurrentTimeZone.GetUtcOffset (new DateTime (ticksUTC)).Ticks;
2029                         CultureInfo ci = CultureInfo.InvariantCulture;
2030                         DateTime dt;
2031
2032                         // Should return same time with Unspecified kind
2033                         dt = DateTime.ParseExact ("2008-02-05 02:38:26", "yyyy-MM-dd HH:mm:ss", ci);
2034 #if NET_2_0
2035                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "A1");
2036 #endif
2037                         Assert.AreEqual (ticksUTC, dt.Ticks, "A2");
2038
2039                         // Should return same time with Unspecified kind
2040                         dt = DateTime.ParseExact ("2008-02-05 02:38:26Z", "u", ci);
2041 #if NET_2_0
2042                         Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "B1");
2043 #endif
2044                         Assert.AreEqual (ticksUTC, dt.Ticks, "B2");
2045
2046 #if NET_2_0
2047                         // Should adjust to local time with Local kind
2048                         dt = DateTime.ParseExact ("2008-02-05 00:38:26-02:00", "yyyy-MM-dd HH:mm:ssK", ci);
2049                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "C1");
2050                         Assert.AreEqual (ticksLocal, dt.Ticks, "C2");
2051
2052                         // Should ignore AssumeUniversal since a timezone specifier is in the format string
2053                         // and return time adjusted to local time with Local kind
2054                         dt = DateTime.ParseExact ("2008-02-05 00:38:26 -2", "yyyy-MM-dd HH:mm:ss z", ci, DateTimeStyles.AssumeUniversal);
2055                         Assert.AreEqual (DateTimeKind.Local, dt.Kind, "D1");
2056                         Assert.AreEqual (ticksLocal, dt.Ticks, "D2");
2057 #endif
2058
2059                         try {
2060                                 // GMT in format string can be used to specify time zone
2061                                 dt = DateTime.ParseExact ("2008-02-05 02:38:26 GMT", "yyyy-MM-dd HH:mm:ss GMT", ci);
2062 #if NET_2_0
2063                                 Assert.AreEqual (DateTimeKind.Local, dt.Kind, "E1");
2064 #endif
2065                                 Assert.AreEqual (ticksLocal, dt.Ticks, "E2");
2066                         }
2067                         catch {
2068                                 Assert.Fail ("E3");
2069                         }
2070
2071                         try {
2072                                 // Same as above even when surrounded with other characters
2073                                 dt = DateTime.ParseExact ("2008-02-05 02:38:26 qqGMTqq", "yyyy-MM-dd HH:mm:ss qqGMTqq", ci);
2074 #if NET_2_0
2075                                 Assert.AreEqual (DateTimeKind.Local, dt.Kind, "F1");
2076 #endif
2077                                 Assert.AreEqual (ticksLocal, dt.Ticks, "F2");
2078                         }
2079                         catch {
2080                                 Assert.Fail ("F3");
2081                         }
2082
2083                         try {
2084                                 // But single quoted GMT in format string should not specify time zone
2085                                 dt = DateTime.ParseExact ("2008-02-05 02:38:26 GMT", "yyyy-MM-dd HH:mm:ss 'GMT'", ci);
2086 #if NET_2_0
2087                                 Assert.AreEqual (DateTimeKind.Unspecified, dt.Kind, "G1");
2088 #endif
2089                                 Assert.AreEqual (ticksUTC, dt.Ticks, "G2");
2090                         }
2091                         catch {
2092                                 Assert.Fail ("G3");
2093                         }
2094
2095                         try {
2096                                 // GMT in Parse can occur before time in 2.0 but not in 1.0
2097                                 dt = DateTime.Parse ("GMT 2008-02-05 02:38:26", ci);
2098 #if NET_2_0
2099                                 Assert.AreEqual (DateTimeKind.Local, dt.Kind, "H1");
2100                                 Assert.AreEqual (ticksLocal, dt.Ticks, "H2");
2101 #else
2102                                 Assert.Fail ("H3");
2103 #endif
2104                         }
2105                         catch {
2106 #if NET_2_0
2107                                 Assert.Fail ("H4");
2108 #endif
2109                         }
2110                 }
2111
2112                 [Test]
2113                 public void Bug377042 ()
2114                 {
2115                         string [] f = new string [] {
2116                                 "yyyy-MM-ddTHH:mm:ssZ",
2117                                 "yyyy-MM-ddTHH:mm:sszzzz",
2118                                 "yyyy-MM-dd"
2119                                 };
2120                         DateTimeStyles dts = DateTimeStyles.AdjustToUniversal;
2121 #if NET_2_0
2122                         dts |= DateTimeStyles.AssumeUniversal;
2123 #endif
2124                         DateTime result = DateTime.ParseExact ("2005-01-01T01:11:11+8:00", f, new DateTimeFormatInfo (), dts);
2125                 }
2126
2127                 [Test]
2128                 [ExpectedException (typeof (FormatException))]
2129                 public void EmptyString ()
2130                 {
2131                         DateTime.Parse ("");
2132                 }
2133 #if NET_2_0
2134                 [Test]
2135                 public void TryEmptyString ()
2136                 {
2137                         DateTime date;
2138                         Assert.IsFalse (DateTime.TryParse ("", out date));
2139                 }
2140
2141                 [Test]
2142                 public void Kind ()
2143                 {
2144                         if (DateTime.Now == DateTime.UtcNow)
2145                                 return; // This test does not make sense.
2146                         if (TimeZone.CurrentTimeZone.GetUtcOffset (DateTime.UtcNow)
2147                                 != TimeZone.CurrentTimeZone.GetUtcOffset (DateTime.Now))
2148                                 return; // In this case it does not satisfy the test premises.
2149
2150                         Assert.AreEqual (DateTimeKind.Local, DateTime.Now.Kind, "#A1");
2151                         Assert.AreEqual (DateTimeKind.Local, DateTime.Today.Kind, "#A2");
2152
2153                         DateTime utc = DateTime.UtcNow;
2154                         DateTime now = new DateTime (utc.Ticks + TimeZone.
2155                                 CurrentTimeZone.GetUtcOffset (utc).Ticks, DateTimeKind.Local);
2156                         DateTime utctouniv = utc.ToUniversalTime ();
2157                         DateTime nowtouniv = now.ToUniversalTime ();
2158                         DateTime utctoloc = utc.ToLocalTime ();
2159                         DateTime nowtoloc = now.ToLocalTime ();
2160
2161                         Assert.AreEqual (DateTimeKind.Utc, utc.Kind, "#B1");
2162                         Assert.AreEqual (DateTimeKind.Local, now.Kind, "#B2");
2163                         Assert.AreEqual (DateTimeKind.Utc, utctouniv.Kind, "#B3");
2164                         Assert.AreEqual (DateTimeKind.Utc, nowtouniv.Kind, "#B4");
2165                         Assert.AreEqual (DateTimeKind.Local, utctoloc.Kind, "#B5");
2166                         Assert.AreEqual (DateTimeKind.Local, nowtoloc.Kind, "#B6");
2167                         Assert.AreEqual (utc, utctouniv, "#B7");
2168                         Assert.AreEqual (utc, nowtouniv, "#B8");
2169                         Assert.AreEqual (now, nowtoloc, "#B9");
2170                         Assert.AreEqual (now, utctoloc, "#B10");
2171                 }
2172
2173                 [Test]
2174                 public void InstanceMembersAndKind ()
2175                 {
2176                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.Date.Kind, "#1");
2177                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.Add (TimeSpan.FromMinutes (1)).Kind, "#2");
2178                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.Subtract (TimeSpan.FromMinutes (1)).Kind, "#3");
2179                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddDays (1).Kind, "#4");
2180                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddTicks (1).Kind, "#5");
2181                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddHours (1).Kind, "#6");
2182                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddMinutes (1).Kind, "#7");
2183                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddSeconds (1).Kind, "#8");
2184                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddMilliseconds (1).Kind, "#9");
2185                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddMonths (1).Kind, "#10");
2186                         Assert.AreEqual (DateTimeKind.Utc, DateTime.UtcNow.AddYears (1).Kind, "#11");
2187                         Assert.AreEqual (DateTimeKind.Utc, (DateTime.UtcNow + TimeSpan.FromMinutes (1)).Kind, "#12");
2188                         Assert.AreEqual (DateTimeKind.Utc, (DateTime.UtcNow - TimeSpan.FromMinutes (1)).Kind, "#13");
2189                 }
2190
2191                 [Test]
2192                 public void CompareTicks ()
2193                 {
2194                         // Only ticks are compared, not kind.
2195                         var d = new DateTime (0, DateTimeKind.Utc);
2196                         var f = new DateTime (0);
2197
2198                         Assert.AreEqual (d == f, true, "#1");
2199                 }
2200                 
2201                 [Test]
2202                 public void FromBinary ()
2203                 {
2204                         DateTime dt_utc = DateTime.FromBinary (0x4000000000000001);
2205                         Assert.AreEqual (DateTimeKind.Utc, dt_utc.Kind, "#1");
2206                         Assert.AreEqual (1, dt_utc.Ticks, "#2");
2207
2208                         DateTime dt_local = DateTime.FromBinary (unchecked ((long) 0x8000000000000001));
2209                         Assert.AreEqual (DateTimeKind.Local, dt_local.Kind, "#3");
2210
2211                         DateTime dt_unspecified = DateTime.FromBinary (0x0000000000000001);
2212                         Assert.AreEqual (DateTimeKind.Unspecified, dt_unspecified.Kind, "#4");
2213                         Assert.AreEqual (1, dt_unspecified.Ticks, "#5");
2214
2215                         DateTime dt_local2 = DateTime.FromBinary (unchecked ((long) 0xC000000000000001));
2216                         Assert.AreEqual (DateTimeKind.Local, dt_local2.Kind, "#6");
2217                         Assert.AreEqual (dt_local.Ticks, dt_local2.Ticks, "#7");
2218                 }
2219
2220                 [Test]
2221                 public void ToBinary ()
2222                 {
2223                         DateTime dt_local = new DateTime (1, DateTimeKind.Local);
2224                         Assert.AreEqual (1, (ulong) dt_local.ToBinary () >> 63, "#1");
2225                         Assert.AreEqual (1, dt_local.Ticks, "#2");
2226
2227                         DateTime dt_utc = new DateTime (1, DateTimeKind.Utc);
2228                         Assert.AreEqual (0x4000000000000001, dt_utc.ToBinary (), "#3");
2229                         Assert.AreEqual (1, dt_utc.Ticks, "#4");
2230
2231                         DateTime dt_unspecified = new DateTime (1, DateTimeKind.Unspecified);
2232                         Assert.AreEqual (1, dt_unspecified.ToBinary (), "#5");
2233                         Assert.AreEqual (1, dt_unspecified.Ticks, "#6");
2234                 }
2235
2236                 [Test]
2237                 public void RoundtripBinary ()
2238                 {
2239                         DateTime dt = DateTime.Now;
2240                         DateTime dt2 = DateTime.SpecifyKind (dt, DateTimeKind.Utc);
2241                         DateTime dt3 = DateTime.SpecifyKind (dt, DateTimeKind.Unspecified);
2242                         Assert.AreEqual (dt, DateTime.FromBinary (dt.ToBinary ()), "#1");
2243                         Assert.AreEqual (dt2, DateTime.FromBinary (dt2.ToBinary ()), "#2");
2244                         Assert.AreEqual (dt3, DateTime.FromBinary (dt3.ToBinary ()), "#3");
2245                         Assert.AreEqual (DateTimeKind.Local, DateTime.FromBinary (dt.ToBinary ()).Kind, "#4");
2246                         Assert.AreEqual (DateTimeKind.Utc, DateTime.FromBinary (dt2.ToBinary ()).Kind, "#5");
2247                         Assert.AreEqual (DateTimeKind.Unspecified, DateTime.FromBinary (dt3.ToBinary ()).Kind, "#6");
2248
2249                         Assert.AreEqual (TimeZone.CurrentTimeZone.GetUtcOffset (dt).Ticks, dt3.ToBinary () - (dt.ToBinary () & 0x7FFFFFFFFFFFFFFF), "#7");
2250                 }
2251
2252                 [Test]
2253                 public void TestMin ()
2254                 {
2255                         // This should never throw.
2256                         DateTime.MinValue.ToLocalTime ();
2257                 }
2258
2259                 [Test]
2260                 public void OmittedSecondsFraction ()
2261                 {
2262                         DateTime today = DateTime.Today;
2263                         Assert.AreEqual ("00:00:00.13579", today.AddTicks (1357900).ToString ("HH:mm:ss.FFFFFFF"), "#1");
2264                         DateTime dt = DateTime.ParseExact ("00:00:00.13579", "HH:mm:ss.FFFFFFF", CultureInfo.InvariantCulture);
2265                         Assert.AreEqual (today, dt.AddTicks (-1357900), "#2");
2266                         // it's more than strange ...
2267                         Assert.AreEqual (String.Empty, today.ToString (".FFFFFFF"), "#3");
2268                         Assert.AreEqual ("$", today.ToString ("$FFFFFFF"), "#4");
2269                 }
2270
2271                 [Test]
2272                 public void KindInPattern ()
2273                 {
2274                         // only 2.0 supports 'K'
2275                         Assert.AreEqual ("00:00:00", new DateTime (2000, 1, 1).ToString ("HH:mm:ssK"), "#1");
2276                         Assert.AreEqual ('Z', DateTime.Today.ToUniversalTime ().ToString ("HH:mm:ssK") [8], "#2");
2277                         Assert.AreEqual ("00:00:00+09:00".Length, DateTime.Today.ToString ("HH:mm:ssK").Length, "#3");
2278                 }
2279
2280                 [Test]
2281                 public void RoundtripPattern ()
2282                 {
2283                         // only 2.0 supports 'o'
2284                         Assert.AreEqual ("2000-01-01T00:00:00.0000000", new DateTime (2000, 1, 1).ToString ("o"), "#1");
2285                         Assert.AreEqual ("2000-01-01T00:00:00.0000000Z", DateTime.SpecifyKind (new DateTime (2000, 1, 1), DateTimeKind.Utc).ToString ("o"), "#2");
2286                         Assert.AreEqual ("2000-01-01T00:00:00.0000000+09:00".Length, DateTime.SpecifyKind (
2287                                 new DateTime (2000, 1, 1), DateTimeKind.Local).ToString ("o").Length, "#3");
2288                 }
2289
2290                 [Test]
2291                 [Category ("NotDotNet")]
2292                 [Category ("NotWorking")] // wrt bug #352210
2293                 public void KindPattern ()
2294                 {
2295                         // no matter how the format string contains 'K' and the
2296                         // output string contains kind information, it does not
2297                         // assure that the string is parsed as roundtrip kind.
2298
2299                         // only 2.0 supports 'K'
2300                         string format = "yyyy-MM-dd'T'HH:mm:ss.fffK";
2301                         CultureInfo ci = CultureInfo.CurrentCulture;
2302                         DateTime dt = DateTime.SpecifyKind (new DateTime (2007, 11, 1, 2, 30, 45), DateTimeKind.Utc);
2303                         string s = dt.ToString (format);
2304                         DateTime d1 = DateTime.ParseExact (s, format, ci); // d1 is parsed as a local time.
2305                         Assert.AreEqual (dt.Ticks, d1.ToUniversalTime ().Ticks, "#1");
2306                         // .NET expects Local here, while s ends with 'Z' and should be parsed as UTC.
2307                         Assert.AreEqual (DateTimeKind.Utc, d1.Kind, "#2");
2308
2309                         format = "yyyy-MM-dd'T'HH:mm:ssK";
2310                         ci = CultureInfo.CurrentCulture;
2311                         dt = new DateTime (2007, 11, 1, 2, 30, 45);
2312                         s = dt.ToString (format);
2313                         d1 = DateTime.ParseExact (s, format, ci);
2314                         Assert.AreEqual (dt.Ticks, d1.Ticks, "#3");
2315                         Assert.AreEqual (DateTimeKind.Unspecified, d1.Kind, "#4");
2316                 }
2317
2318                 [Test]
2319                 public void TestRoundTrip () {
2320                         DateTime result;
2321                         DateTimeStyles roundTripStyle = DateTimeStyles.RoundtripKind;
2322                         string utcDate = "2008-02-21T11:14:18.2721262Z";
2323                         string localDate = "2008-02-21T11:14:18.2721262+02:00";
2324                         string unspec = "2008-02-21T11:14:18.2721262";
2325                         String [] formats = {"yyyy-MM-ddTHH:mm:ssK", "yyyy-MM-ddTHH:mm:ss.FFFFFFFK"};
2326
2327                         result = DateTime.ParseExact (localDate, formats, CultureInfo.InvariantCulture, roundTripStyle);
2328                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2329                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391820582721262);
2330                         
2331                         result = DateTime.ParseExact (unspec, formats, CultureInfo.InvariantCulture, roundTripStyle);
2332                         Assert.AreEqual (result.Kind, DateTimeKind.Unspecified);
2333                         Assert.AreEqual (result.Ticks, 633391892582721262);
2334                         
2335                         result = DateTime.ParseExact (utcDate, formats, CultureInfo.InvariantCulture, roundTripStyle);
2336                         Assert.AreEqual (result.Kind, DateTimeKind.Utc);
2337                         Assert.AreEqual (result.Ticks, 633391892582721262);
2338
2339                 }               
2340
2341                 [Test]
2342                 public void TestRegularStyle () {
2343                         DateTime result;
2344                         DateTimeStyles style = DateTimeStyles.AllowLeadingWhite | DateTimeStyles.AllowTrailingWhite;
2345                         string utcDate = "2008-02-21T11:14:18.2721262Z";
2346                         string localDate = "2008-02-21T11:14:18.2721262+02:00";
2347                         string unspec = "2008-02-21T11:14:18.2721262";
2348                         String [] formats = {"yyyy-MM-ddTHH:mm:ssK", "yyyy-MM-ddTHH:mm:ss.FFFFFFFK"};
2349
2350                         result = DateTime.ParseExact (localDate, formats, CultureInfo.InvariantCulture, style);
2351                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2352                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391820582721262);
2353
2354                         result = DateTime.ParseExact (unspec, formats, CultureInfo.InvariantCulture, style);
2355                         Assert.AreEqual (result.Kind, DateTimeKind.Unspecified);                        
2356                         Assert.AreEqual (result.Ticks, 633391892582721262);
2357
2358                         result = DateTime.ParseExact (utcDate, formats, CultureInfo.InvariantCulture, style);
2359                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2360                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391892582721262);
2361                 }
2362
2363                 [Test]
2364                 public void TestAssumeLocal () {
2365                         DateTime result;
2366                         DateTimeStyles assumeLocal =  DateTimeStyles.AssumeLocal;
2367                         string utcDate = "2008-02-21T11:14:18.2721262Z";
2368                         string localDate = "2008-02-21T11:14:18.2721262+02:00";
2369                         string unspec = "2008-02-21T11:14:18.2721262";
2370                         String [] formats = {"yyyy-MM-ddTHH:mm:ssK", "yyyy-MM-ddTHH:mm:ss.FFFFFFFK"};
2371
2372                         result = DateTime.ParseExact (localDate, formats, CultureInfo.InvariantCulture, assumeLocal);
2373                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2374                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391820582721262);
2375
2376                         result = DateTime.ParseExact (unspec, formats, CultureInfo.InvariantCulture, assumeLocal);
2377                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2378                         Assert.AreEqual (result.Ticks, 633391892582721262);
2379
2380                         result = DateTime.ParseExact (utcDate, formats, CultureInfo.InvariantCulture, assumeLocal);
2381                         Assert.AreEqual (result.Kind, DateTimeKind.Local);
2382                         Assert.AreEqual (result.ToUniversalTime ().Ticks, 633391892582721262);
2383                 }
2384
2385                 [Test]
2386                 [ExpectedException (typeof (ArgumentException))]
2387                 public void IllegalStyleCombination1()
2388                 {
2389                         DateTimeStyles illegal = DateTimeStyles.RoundtripKind | DateTimeStyles.AssumeLocal;
2390                         DateTime.ParseExact ("", "", null, illegal);                    
2391                 }
2392
2393                 [Test]
2394                 [ExpectedException (typeof (ArgumentException))]
2395                 public void IllegalStyleCombination2()
2396                 {
2397                         DateTimeStyles illegal = DateTimeStyles.RoundtripKind | DateTimeStyles.AdjustToUniversal;
2398                         DateTime.ParseExact ("", "", null, illegal);
2399                 }
2400
2401                 [Test]
2402                 [ExpectedException (typeof (ArgumentException))]
2403                 public void IllegalStyleCombination3()
2404                 {
2405                         DateTimeStyles illegal = DateTimeStyles.RoundtripKind | DateTimeStyles.AssumeUniversal;
2406                         DateTime.ParseExact ("", "", null, illegal);
2407                 }
2408
2409                 [Test]
2410                 [ExpectedException (typeof (ArgumentException))]
2411                 public void IllegalStyleCombination4()
2412                 {
2413                         DateTimeStyles illegal = DateTimeStyles.AssumeLocal | DateTimeStyles.AssumeUniversal;
2414                         DateTime.ParseExact ("", "", null, illegal);
2415                 }
2416
2417                 [Test]
2418                 [ExpectedException (typeof (FormatException))]
2419                 public void TrailingDot ()
2420                 {
2421                         DateTime.ParseExact ("12:00:00", "HH:mm:ss.", null);
2422                 }
2423
2424                 [Test]
2425                 public void TrailingFlexibleMilliseconds ()
2426                 {
2427                         // bug #444103.
2428                         DateTime.ParseExact ("12:00:00", "HH:mm:ss.FFFFFFF", null);
2429                 }
2430                
2431                 [Test]
2432                 public void TryParseExact_NullString ()
2433                 {
2434                         DateTime dt;
2435                         DateTime.TryParseExact(null, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", CultureInfo.InvariantCulture,
2436                                                DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out dt);
2437                         Assert.AreEqual(default(DateTime), dt);
2438                 }
2439
2440                 [Test]
2441                 public void MSAndZ ()
2442                 {
2443                         CultureInfo cultureInfo = CultureInfo.GetCultureInfo ("en-US");
2444                         DateTime dt;
2445                         if (!DateTime.TryParse ("2009.02.24T13:57:07.000 -0800", cultureInfo.DateTimeFormat,
2446                                                 DateTimeStyles.None, out dt))
2447                                 Assert.Fail ("Failed");
2448                 }
2449 #endif
2450         }
2451 }