mcs/class/corlib/Test/System.Threading/ThreadTest.cs

   1 // ThreadTest.cs - NUnit Test Cases for the System.Threading.Thread class
   2 //
   3 // Authors
   4 //      Eduardo Garcia Cebollero (kiwnix@yahoo.es)
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // (C) Eduardo Garcia Cebollero.
   8 // (C) Ximian, Inc.  http://www.ximian.com
   9 // (C) 2004 Novell (http://www.novell.com)
  10 //
  11
  12 using System;
  13 using System.Globalization;
  14 using System.Security.Principal;
  15 using System.Threading;
  16 using System.Reflection;
  17 using System.Collections.Generic;
  18 using SD = System.Diagnostics;
  19
  20 using NUnit.Framework;
  21
  22 namespace MonoTests.System.Threading
  23 {
  24         // These tests seem to hang the 2.0 framework. So they are disabled for now
  25         // Don't reenable them until you can run a few thousand times on an SMP box.
  26         [Category ("NotWorking")]
  27         public class ThreadedPrincipalTest
  28         {
  29                 public static void NoPrincipal ()
  30                 {
  31                         AppDomain.CurrentDomain.SetPrincipalPolicy (PrincipalPolicy.NoPrincipal);
  32                         IPrincipal p = Thread.CurrentPrincipal;
  33                         Assert.IsNull (p, "#1");
  34
  35                         Thread.CurrentPrincipal = new GenericPrincipal (new GenericIdentity ("mono"), null);
  36                         Assert.IsNotNull (Thread.CurrentPrincipal, "#2");
  37
  38                         Thread.CurrentPrincipal = null;
  39                         Assert.IsNull (Thread.CurrentPrincipal, "#3");
  40                         // in this case we can return to null
  41                 }
  42
  43                 public static void UnauthenticatedPrincipal ()
  44                 {
  45                         AppDomain.CurrentDomain.SetPrincipalPolicy (PrincipalPolicy.UnauthenticatedPrincipal);
  46                         IPrincipal p = Thread.CurrentPrincipal;
  47                         Assert.IsNotNull (p, "#1");
  48                         Assert.IsTrue ((p is GenericPrincipal), "#2");
  49                         Assert.AreEqual (String.Empty, p.Identity.Name, "#3");
  50                         Assert.AreEqual (String.Empty, p.Identity.AuthenticationType, "#4");
  51                         Assert.IsFalse (p.Identity.IsAuthenticated, "#5");
  52
  53                         Thread.CurrentPrincipal = new GenericPrincipal (new GenericIdentity ("mono"), null);
  54                         Assert.IsNotNull (Thread.CurrentPrincipal, "#6");
  55
  56                         Thread.CurrentPrincipal = null;
  57                         Assert.IsNotNull (Thread.CurrentPrincipal, "#7");
  58                         // in this case we can't return to null
  59                 }
  60
  61                 public static void WindowsPrincipal ()
  62                 {
  63                         AppDomain.CurrentDomain.SetPrincipalPolicy (PrincipalPolicy.WindowsPrincipal);
  64                         IPrincipal p = Thread.CurrentPrincipal;
  65                         Assert.IsNotNull (p, "#1");
  66                         Assert.IsTrue ((p is WindowsPrincipal), "#2");
  67                         Assert.IsNotNull (p.Identity.Name, "#3");
  68                         Assert.IsNotNull (p.Identity.AuthenticationType, "#4");
  69                         Assert.IsTrue (p.Identity.IsAuthenticated, "#5");
  70
  71                         // note: we can switch from a WindowsPrincipal to a GenericPrincipal
  72                         Thread.CurrentPrincipal = new GenericPrincipal (new GenericIdentity ("mono"), null);
  73                         Assert.IsNotNull (Thread.CurrentPrincipal, "#6");
  74
  75                         Thread.CurrentPrincipal = null;
  76                         Assert.IsNotNull (Thread.CurrentPrincipal, "#7");
  77                         // in this case we can't return to null
  78                 }
  79
  80                 public static void CopyOnNewThread ()
  81                 {
  82                         Assert.IsNotNull (Thread.CurrentPrincipal, "#1");
  83                         Assert.AreEqual ("good", Thread.CurrentPrincipal.Identity.Name, "#2");
  84                 }
  85         }
  86
  87         [TestFixture]
  88         [Category("MobileNotWorking")] // Abort #10240
  89         public class ThreadTest
  90         {
  91                 //TimeSpan Infinite = new TimeSpan (-10000);    // -10000 ticks == -1 ms
  92                 TimeSpan SmallNegative = new TimeSpan (-2);     // between 0 and -1.0 (infinite) ms
  93                 TimeSpan Negative = new TimeSpan (-20000);      // really negative
  94                 //TimeSpan MaxValue = TimeSpan.FromMilliseconds ((long) Int32.MaxValue);
  95                 TimeSpan TooLarge = TimeSpan.FromMilliseconds ((long) Int32.MaxValue + 1);
  96
  97                 static bool is_win32;
  98                 static bool is_mono;
  99
 100                 static ThreadTest ()
 101                 {
 102                         switch (Environment.OSVersion.Platform) {
 103                         case PlatformID.Win32NT:
 104                         case PlatformID.Win32S:
 105                         case PlatformID.Win32Windows:
 106                         case PlatformID.WinCE:
 107                                 is_win32 = true;
 108                                 break;
 109                         }
 110
 111                         // check a class in mscorlib to determine if we're running on Mono
 112                         if (Type.GetType ("System.MonoType", false) != null)
 113                                 is_mono = true;
 114                 }
 115
 116                 //Some Classes to test as threads
 117                 private class C1Test
 118                 {
 119                         public int cnt;
 120                         public Thread thread1;
 121                         public bool endm1;
 122                         public bool endm2;
 123
 124                         public C1Test()
 125                         {
 126                                 thread1 = (Thread)null;
 127                                 this.cnt = 0;
 128                                 endm1 = endm2 = false;
 129                         }
 130
 131                         public void TestMethod()
 132                         {
 133                                 while (cnt < 10)
 134                                 {
 135                                         cnt++;
 136                                 }
 137                                 endm1 = true;
 138                         }
 139                         public void TestMethod2()
 140                         {
 141                                 if (!(thread1==(Thread)null) )
 142                                 {
 143                                         thread1.Join();
 144                                 }
 145                                 endm2 = true;
 146                         }
 147                 }
 148
 149                 private class C2Test
 150                 {
 151                         public int cnt;
 152                         public bool run = false;
 153
 154                         public C2Test()
 155                         {
 156                                 this.cnt = 0;
 157                         }
 158
 159                         public void TestMethod()
 160                         {
 161                                 run = true;
 162                                 while (true)
 163                                 {
 164                                         if (cnt < 1000)
 165                                                 cnt++;
 166                                         else
 167                                                 cnt = 0;
 168                                 }
 169                         }
 170                 }
 171
 172                 private class C3Test
 173                 {
 174                         public C1Test sub_class;
 175                         public Thread sub_thread;
 176
 177                         public C3Test()
 178                         {
 179                                 sub_class = new C1Test();
 180                                 sub_thread = new Thread(new ThreadStart(sub_class.TestMethod));
 181                         }
 182
 183                         public void TestMethod1()
 184                         {
 185                                 sub_thread.Start();
 186                                 Thread.Sleep (100);
 187 #if MONO_FEATURE_THREAD_ABORT
 188                                 sub_thread.Abort();
 189 #else
 190                                 sub_thread.Interrupt ();
 191 #endif
 192                         }
 193                 }
 194
 195                 private class C4Test
 196                 {
 197                         public C1Test class1;
 198                         public C1Test class2;
 199                         public Thread thread1;
 200                         public Thread thread2;
 201                         public bool T1ON ;
 202                         public bool T2ON ;
 203
 204                         public C4Test()
 205                         {
 206                                 T1ON = false;
 207                                 T2ON = false;
 208                                 class1 = new C1Test();
 209                                 class2 = new C1Test();
 210                                 thread1 = new Thread(new ThreadStart(class1.TestMethod));
 211                                 thread2 = new Thread(new ThreadStart(class2.TestMethod));
 212                         }
 213
 214                         public void TestMethod1()
 215                         {
 216                                 thread1.Start();
 217                                 TestUtil.WaitForAlive (thread1, "wait1");
 218                                 T1ON = true;
 219                                 thread2.Start();
 220                                 TestUtil.WaitForAlive (thread2, "wait2");
 221                                 T2ON = true;
 222 #if MONO_FEATURE_THREAD_ABORT
 223                                 thread1.Abort();
 224 #else
 225                                 thread1.Interrupt ();
 226 #endif
 227                                 TestUtil.WaitForNotAlive (thread1, "wait3");
 228                                 T1ON = false;
 229 #if MONO_FEATURE_THREAD_ABORT
 230                                 thread2.Abort();
 231 #else
 232                                 thread2.Interrupt ();
 233 #endif
 234                                 TestUtil.WaitForNotAlive (thread2, "wait4");
 235                                 T2ON = false;
 236                         }
 237
 238                         public void TestMethod2()
 239                         {
 240                                 thread1.Start();
 241                                 thread1.Join();
 242                         }
 243                 }
 244
 245                 [Test]
 246                 public void TestCtor1()
 247                 {
 248                         C1Test test1 = new C1Test();
 249                         Thread t = new Thread (new ThreadStart (test1.TestMethod));
 250
 251                         Assert.IsTrue (t.CurrentCulture.IsReadOnly, "CurrentCulture.IsReadOnly");
 252                         Assert.IsFalse (t.IsAlive, "IsAlive");
 253                         Assert.IsFalse (t.IsBackground, "IsBackground");
 254                         Assert.IsNull (t.Name, "Name");
 255                         Assert.AreEqual (ThreadState.Unstarted, t.ThreadState, "ThreadState");
 256                 }
 257
 258                 [Test]
 259                 [Category ("NotWorking")] // we're not sharing (read-only) CultureInfo
 260                 public void CultureInfo_Shared_Across_Threads ()
 261                 {
 262                         Thread t = new Thread (TestCtor1);
 263                         Assert.AreSame (t.CurrentCulture, t.CurrentUICulture, "Culture");
 264
 265                         Assert.AreSame (t.CurrentCulture, CultureInfo.CurrentCulture, "CultureInfo.CurrentCulture");
 266                         Assert.AreSame (t.CurrentUICulture, CultureInfo.CurrentUICulture, "CultureInfo.CurrentUICulture");
 267
 268                         Assert.AreSame (t.CurrentCulture, Thread.CurrentThread.CurrentCulture, "Thread.CurrentThread.CurrentCulture");
 269                         Assert.AreSame (t.CurrentUICulture, Thread.CurrentThread.CurrentUICulture, "Thread.CurrentThread.CurrentUICulture");
 270                 }
 271
 272                 [Test] // bug #325566
 273                 public void GetHashCodeTest ()
 274                 {
 275                         C1Test test1 = new C1Test ();
 276                         Thread tA = new Thread (new ThreadStart (test1.TestMethod));
 277                         int hA1 = tA.GetHashCode ();
 278                         Assert.IsTrue (hA1 > 0, "#A1");
 279                         tA.Start ();
 280                         int hA2 = tA.GetHashCode ();
 281                         Assert.AreEqual (hA1, hA2, "#A2");
 282                         tA.Join ();
 283                         int hA3 = tA.GetHashCode ();
 284                         Assert.AreEqual (hA1, hA3, "#A3");
 285                         Assert.AreEqual (hA1, tA.ManagedThreadId, "#A4");
 286
 287                         test1 = new C1Test ();
 288                         Thread tB = new Thread (new ThreadStart (test1.TestMethod));
 289                         int hB1 = tB.GetHashCode ();
 290                         Assert.IsTrue (hB1 > 0, "#B1");
 291                         tB.Start ();
 292                         int hB2 = tB.GetHashCode ();
 293                         Assert.AreEqual (hB1, hB2, "#B2");
 294                         tB.Join ();
 295                         int hB3 = tB.GetHashCode ();
 296                         Assert.AreEqual (hB1, hB3, "#B3");
 297                         Assert.AreEqual (hB1, tB.ManagedThreadId, "#B4");
 298                         Assert.IsFalse (hA2 == hB2, "#B5");
 299                 }
 300
 301                 [Test] // bug #82700
 302                 public void ManagedThreadId ()
 303                 {
 304                         C1Test test1 = new C1Test ();
 305                         Thread t1 = new Thread (new ThreadStart (test1.TestMethod));
 306                         int mtA1 = t1.ManagedThreadId;
 307                         t1.Start ();
 308                         int mtA2 = t1.ManagedThreadId;
 309                         t1.Join ();
 310                         int mtA3 = t1.ManagedThreadId;
 311                         Assert.AreEqual (mtA1, mtA2, "#A1");
 312                         Assert.AreEqual (mtA2, mtA3, "#A2");
 313
 314                         test1 = new C1Test ();
 315                         Thread t2 = new Thread (new ThreadStart (test1.TestMethod));
 316                         int mtB1 = t2.ManagedThreadId;
 317                         t2.Start ();
 318                         int mtB2 = t2.ManagedThreadId;
 319                         t2.Join ();
 320                         int mtB3 = t2.ManagedThreadId;
 321                         Assert.AreEqual (mtB1, mtB2, "#B1");
 322                         Assert.AreEqual (mtB2, mtB3, "#B2");
 323                         Assert.IsFalse (mtB1 == mtA1, "#B3");
 324                 }
 325
 326                 [Test]
 327                 [Category ("NotDotNet")] // it hangs.
 328                 public void TestStart()
 329                 {
 330                         if (is_win32 && is_mono)
 331                                 Assert.Fail ("This test fails on Win32. The test should be fixed.");
 332                 {
 333                         C1Test test1 = new C1Test();
 334                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 335                         TestThread.Start();
 336                         TestThread.Join();
 337                         Assert.AreEqual (10, test1.cnt, "#1");
 338                 }
 339                 {
 340                         C2Test test1 = new C2Test();
 341                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 342                         TestThread.Start();
 343 #if MONO_FEATURE_THREAD_ABORT
 344                         TestThread.Abort();
 345 #else
 346                         TestThread.Interrupt ();
 347 #endif
 348                         try {
 349                                 TestThread.Start();
 350                                 Assert.Fail ("#2");
 351                         } catch (ThreadStateException) {
 352                         }
 353                 }
 354                 {
 355                         C2Test test1 = new C2Test();
 356                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 357                         TestThread.Start();
 358                         while (!test1.run) {
 359                         }
 360                         bool started = (TestThread.ThreadState == ThreadState.Running);
 361                         Assert.AreEqual (started, test1.run, "#15 Thread Is not in the correct state: ");
 362 #if MONO_FEATURE_THREAD_ABORT
 363                         TestThread.Abort();
 364 #else
 365                         TestThread.Interrupt ();
 366 #endif
 367                 }
 368                 }
 369
 370                 [Test]
 371                 public void TestApartmentState ()
 372                 {
 373                         if (is_win32 && is_mono)
 374                                 Assert.Fail ("This test fails on mono on win32. Our runtime should be fixed.");
 375
 376                         C2Test test1 = new C2Test();
 377                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 378                         Assert.AreEqual (ApartmentState.Unknown, TestThread.ApartmentState, "#1");
 379                         TestThread.Start();
 380                         TestUtil.WaitForAlive (TestThread, "wait5");
 381                         Assert.AreEqual (ApartmentState.MTA, TestThread.ApartmentState, "#2");
 382 #if MONO_FEATURE_THREAD_ABORT
 383                         TestThread.Abort();
 384 #else
 385                         TestThread.Interrupt ();
 386 #endif
 387                 }
 388
 389                 [Test]
 390                 public void TestPriority1()
 391                 {
 392                         if (is_win32 && is_mono)
 393                                 Assert.Fail ("This test fails on mono on Win32. Our runtime should be fixed.");
 394
 395                         C2Test test1 = new C2Test();
 396                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 397                         try {
 398                                 TestThread.Priority=ThreadPriority.BelowNormal;
 399                                 ThreadPriority after = TestThread.Priority;
 400                                 TestThread.Start();
 401                                 TestUtil.WaitForAlive (TestThread, "wait7");
 402                                 ThreadPriority before = TestThread.Priority;
 403                                 Assert.AreEqual (before, after, "#41 Unexpected Priority Change: ");
 404                         } finally {
 405 #if MONO_FEATURE_THREAD_ABORT
 406                                 TestThread.Abort();
 407 #else
 408                                 TestThread.Interrupt ();
 409 #endif
 410                         }
 411                 }
 412
 413 #if MONO_FEATURE_THREAD_ABORT
 414                 [Test]
 415                 [Category ("NotDotNet")] // on MS, Thread is still in AbortRequested state when Start is invoked
 416                 public void AbortUnstarted ()
 417                 {
 418                         C2Test test1 = new C2Test();
 419                         Thread th = new Thread (new ThreadStart (test1.TestMethod));
 420                         th.Abort ();
 421                         th.Start ();
 422                 }
 423 #endif
 424
 425                 [Test]
 426                 [Category ("NotDotNet")] // on MS, ThreadState is immediately Stopped after Abort
 427                 [Category ("NotWorking")] // this is a MonoTODO -> no support for Priority
 428                 public void TestPriority2()
 429                 {
 430                         C2Test test1 = new C2Test();
 431                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 432                         try {
 433                                 Assert.AreEqual (ThreadPriority.Normal, TestThread.Priority, "#42 Incorrect Priority in New thread: ");
 434                                 TestThread.Start();
 435                                 TestUtil.WaitForAliveOrStop (TestThread, "wait8");
 436                                 Assert.AreEqual (ThreadPriority.Normal, TestThread.Priority, "#43 Incorrect Priority in Started thread: ");
 437                         } finally {
 438 #if MONO_FEATURE_THREAD_ABORT
 439                                 TestThread.Abort();
 440 #else
 441                                 TestThread.Interrupt ();
 442 #endif
 443                         }
 444                         Assert.AreEqual (ThreadPriority.Normal, TestThread.Priority, "#44 Incorrect Priority in Aborted thread: ");
 445                 }
 446
 447                 [Test]
 448                 [Category ("NotWorking")] // this is a MonoTODO -> no support for Priority
 449                 public void TestPriority3()
 450                 {
 451                         C2Test test1 = new C2Test();
 452                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 453                         try {
 454                                 TestThread.Start();
 455                                 TestThread.Priority = ThreadPriority.Lowest;
 456                                 Assert.AreEqual (ThreadPriority.Lowest, TestThread.Priority, "#45A Incorrect Priority:");
 457                                 TestThread.Priority = ThreadPriority.BelowNormal;
 458                                 Assert.AreEqual (ThreadPriority.BelowNormal, TestThread.Priority, "#45B Incorrect Priority:");
 459                                 TestThread.Priority = ThreadPriority.Normal;
 460                                 Assert.AreEqual (ThreadPriority.Normal, TestThread.Priority, "#45C Incorrect Priority:");
 461                                 TestThread.Priority = ThreadPriority.AboveNormal;
 462                                 Assert.AreEqual (ThreadPriority.AboveNormal, TestThread.Priority, "#45D Incorrect Priority:");
 463                                 TestThread.Priority = ThreadPriority.Highest;
 464                                 Assert.AreEqual (ThreadPriority.Highest, TestThread.Priority, "#45E Incorrect Priority:");
 465                         }
 466                         finally {
 467 #if MONO_FEATURE_THREAD_ABORT
 468                                 TestThread.Abort();
 469 #else
 470                                 TestThread.Interrupt ();
 471 #endif
 472                         }
 473                 }
 474
 475                 [Test]
 476                 public void TestUndivisibleByPageSizeMaxStackSize ()
 477                 {
 478                         const int undivisible_stacksize = 1048573;
 479
 480                         var thread = new Thread (new ThreadStart (delegate {}), undivisible_stacksize);
 481                         thread.Start ();
 482                         thread.Join ();
 483                 }
 484
 485                 [Test]
 486                 public void TestIsBackground1 ()
 487                 {
 488                         if (is_win32 && is_mono)
 489                                 Assert.Fail ("This test fails on mono on Win32. Our runtime should be fixed.");
 490
 491                         C2Test test1 = new C2Test();
 492                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 493                         try {
 494                                 TestThread.Start();
 495                                 TestUtil.WaitForAlive (TestThread, "wait9");
 496                                 bool state = TestThread.IsBackground;
 497                                 Assert.IsFalse (state, "#51 IsBackground not set at the default state: ");
 498                         } finally {
 499 #if MONO_FEATURE_THREAD_ABORT
 500                                 TestThread.Abort();
 501 #else
 502                                 TestThread.Interrupt ();
 503 #endif
 504                         }
 505                 }
 506
 507                 [Test]
 508                 public void TestIsBackground2 ()
 509                 {
 510                         C2Test test1 = new C2Test();
 511                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 512                         TestThread.IsBackground = true;
 513                         try {
 514                                 TestThread.Start();
 515                         } finally {
 516 #if MONO_FEATURE_THREAD_ABORT
 517                                 TestThread.Abort();
 518 #else
 519                                 TestThread.Interrupt ();
 520 #endif
 521                         }
 522
 523                         if (TestThread.IsAlive) {
 524                                 try {
 525                                         Assert.IsTrue (TestThread.IsBackground, "#52 Is Background Changed to Start ");
 526                                 } catch (ThreadStateException) {
 527                                         // Ignore if thread died meantime
 528                                 }
 529                         }
 530                 }
 531
 532                 [Test]
 533                 public void TestName()
 534                 {
 535                         if (is_win32 && is_mono)
 536                                 Assert.Fail ("This test fails on mono on Win32. Our runtime should be fixed.");
 537
 538                         C2Test test1 = new C2Test();
 539                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 540                         try {
 541                                 TestThread.Start();
 542                                 TestUtil.WaitForAlive (TestThread, "wait10");
 543                                 string name = TestThread.Name;
 544                                 Assert.IsNull (name, "#61 Name set when mustn't be set: ");
 545                                 string newname = "Testing....";
 546                                 TestThread.Name = newname;
 547                                 Assert.AreEqual (newname, TestThread.Name, "#62 Name not set when must be set: ");
 548                         } finally {
 549 #if MONO_FEATURE_THREAD_ABORT
 550                                 TestThread.Abort();
 551 #else
 552                                 TestThread.Interrupt ();
 553 #endif
 554                         }
 555                 }
 556
 557                 [Test]
 558                 public void Name ()
 559                 {
 560                         Thread t = new Thread (new ThreadStart (Name));
 561                         Assert.IsNull (t.Name, "Name-1");
 562                         t.Name = null;
 563                         Assert.IsNull (t.Name, "Name-2");
 564                 }
 565
 566                 [Test]
 567                 [ExpectedException (typeof (InvalidOperationException))]
 568                 public void Rename ()
 569                 {
 570                         Thread t = new Thread (new ThreadStart (Rename));
 571                         t.Name = "a";
 572                         t.Name = "b";
 573                 }
 574
 575                 bool rename_finished;
 576                 bool rename_failed;
 577
 578                 [Test]
 579                 public void RenameTpThread ()
 580                 {
 581                         object monitor = new object ();
 582                         ThreadPool.QueueUserWorkItem (new WaitCallback (Rename_callback), monitor);
 583                         lock (monitor) {
 584                                 if (!rename_finished)
 585                                         Monitor.Wait (monitor);
 586                         }
 587                         Assert.IsTrue (!rename_failed);
 588                 }
 589
 590                 void Rename_callback (object o) {
 591                         Thread.CurrentThread.Name = "a";
 592                         try {
 593                                 Thread.CurrentThread.Name = "b";
 594                                 //Console.WriteLine ("Thread name is: {0}", Thread.CurrentThread.Name);
 595                         } catch (Exception e) {
 596                                 //Console.Error.WriteLine (e);
 597                                 rename_failed = true;
 598                         }
 599                         object monitor = o;
 600                         lock (monitor) {
 601                                 rename_finished = true;
 602                                 Monitor.Pulse (monitor);
 603                         }
 604                 }
 605
 606                 [Test]
 607                 public void TestNestedThreads1()
 608                 {
 609                         C3Test test1 = new C3Test();
 610                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod1));
 611                         try {
 612                                 TestThread.Start();
 613                                 TestUtil.WaitForAlive (TestThread, "wait11");
 614                         } finally {
 615 #if MONO_FEATURE_THREAD_ABORT
 616                                 TestThread.Abort();
 617 #else
 618                                 TestThread.Interrupt ();
 619 #endif
 620                         }
 621                 }
 622
 623                 [Test]
 624                 public void TestNestedThreads2()
 625                 {
 626                         C4Test test1 = new C4Test();
 627                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod1));
 628                         try {
 629                                 TestThread.Start();
 630                         } finally {
 631 #if MONO_FEATURE_THREAD_ABORT
 632                                 TestThread.Abort();
 633 #else
 634                                 TestThread.Interrupt ();
 635 #endif
 636                         }
 637                 }
 638
 639                 [Test]
 640                 public void TestJoin1()
 641                 {
 642                         C1Test test1 = new C1Test();
 643                         C1Test test2 = new C1Test();
 644                         Thread thread1 = new Thread(new ThreadStart(test1.TestMethod));
 645                         Thread thread2 = new Thread(new ThreadStart(test1.TestMethod2));
 646                         try {
 647                                 thread1.Start();
 648                                 thread2.Start();
 649                                 thread2.Join();
 650                         } finally {
 651 #if MONO_FEATURE_THREAD_ABORT
 652                                 thread1.Abort();
 653                                 thread2.Abort();
 654 #else
 655                                 thread1.Interrupt ();
 656                                 thread2.Interrupt ();
 657 #endif
 658                         }
 659                 }
 660
 661                 [Test]
 662                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 663                 public void Join_Int32_Negative ()
 664                 {
 665                         // -1 is Timeout.Infinite
 666                         Thread.CurrentThread.Join (-2);
 667                 }
 668
 669                 [Test]
 670                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 671                 public void Join_TimeSpan_Negative ()
 672                 {
 673                         Thread.CurrentThread.Join (Negative);
 674                 }
 675
 676                 [Test]
 677                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 678                 public void Join_TimeSpan_TooLarge ()
 679                 {
 680                         Thread.CurrentThread.Join (TooLarge);
 681                 }
 682
 683                 [Test]
 684                 public void Join_TimeSpan_SmallNegative ()
 685                 {
 686                         Thread.CurrentThread.Join (SmallNegative);
 687                 }
 688
 689                 [Test]
 690                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 691                 public void Sleep_Int32_Negative ()
 692                 {
 693                         // -1 is Timeout.Infinite
 694                         Thread.Sleep (-2);
 695                 }
 696
 697                 [Test]
 698                 public void Sleep_TimeSpan_SmallNegative ()
 699                 {
 700                         Thread.Sleep (SmallNegative);
 701                 }
 702
 703                 [Test]
 704                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 705                 public void Sleep_TimeSpan_Negative ()
 706                 {
 707                         Thread.Sleep (Negative);
 708                 }
 709
 710                 [Test]
 711                 [ExpectedException (typeof (ArgumentOutOfRangeException))]
 712                 public void Sleep_TimeSpan_TooLarge ()
 713                 {
 714                         Thread.Sleep (TooLarge);
 715                 }
 716
 717                 [Test]
 718                 public void SpinWait ()
 719                 {
 720                         // no exception for negative numbers
 721                         Thread.SpinWait (Int32.MinValue);
 722                         Thread.SpinWait (0);
 723                 }
 724
 725                 [Test]
 726                 public void TestThreadState ()
 727                 {
 728                         if (is_win32 && is_mono)
 729                                 Assert.Fail ("This test fails on mono on Win32. Our runtime should be fixed.");
 730
 731                         //TODO: Test The rest of the possible transitions
 732                         C2Test test1 = new C2Test();
 733                         Thread TestThread = new Thread(new ThreadStart(test1.TestMethod));
 734                         Assert.AreEqual (ThreadState.Unstarted, TestThread.ThreadState, "#101 Wrong Thread State");
 735                         try {
 736                                 TestThread.Start();
 737                                 //while(!TestThread.IsAlive); //In the MS Documentation this is not necessary
 738                                                                                           //but in the MS SDK it is
 739                                 Assert.IsTrue (TestThread.ThreadState == ThreadState.Running || (TestThread.ThreadState & ThreadState.Unstarted) != 0,
 740                                         "#102 Wrong Thread State: " + TestThread.ThreadState.ToString ());
 741                         } finally {
 742 #if MONO_FEATURE_THREAD_ABORT
 743                                 TestThread.Abort();
 744 #else
 745                                 TestThread.Interrupt ();
 746 #endif
 747                         }
 748
 749                         TestUtil.WaitForNotAlive (TestThread, "wait12");
 750                         // Docs say state will be Stopped, but Aborted happens sometimes (?)
 751                         Assert.IsTrue ((ThreadState.Stopped & TestThread.ThreadState) != 0 || (ThreadState.Aborted & TestThread.ThreadState) != 0,
 752                                 "#103 Wrong Thread State: " + TestThread.ThreadState.ToString ());
 753                 }
 754
 755                 [Test]
 756                 [Ignore ("see comment below.")]
 757                 public void CurrentPrincipal_PrincipalPolicy_NoPrincipal ()
 758                 {
 759                         // note: switching from PrincipalPolicy won't work inside the same thread
 760                         // because as soon as a Principal object is created the Policy doesn't matter anymore
 761                         Thread t = new Thread (new ThreadStart (ThreadedPrincipalTest.NoPrincipal));
 762                         try {
 763                                 t.Start ();
 764                                 t.Join ();
 765                         } catch {
 766 #if MONO_FEATURE_THREAD_ABORT
 767                                 t.Abort ();
 768 #else
 769                                 t.Interrupt ();
 770 #endif
 771                         }
 772                 }
 773
 774                 [Test]
 775                 [Ignore ("see comment below.")]
 776                 public void CurrentPrincipal_PrincipalPolicy_UnauthenticatedPrincipal ()
 777                 {
 778                         // note: switching from PrincipalPolicy won't work inside the same thread
 779                         // because as soon as a Principal object is created the Policy doesn't matter anymore
 780                         Thread t = new Thread (new ThreadStart (ThreadedPrincipalTest.UnauthenticatedPrincipal));
 781                         try {
 782                                 t.Start ();
 783                                 t.Join ();
 784                         } catch {
 785 #if MONO_FEATURE_THREAD_ABORT
 786                                 t.Abort ();
 787 #else
 788                                 t.Interrupt ();
 789 #endif
 790                         }
 791                 }
 792
 793                 [Test]
 794                 public void CurrentPrincipal_PrincipalPolicy_WindowsPrincipal ()
 795                 {
 796                         // note: switching from PrincipalPolicy won't work inside the same thread
 797                         // because as soon as a Principal object is created the Policy doesn't matter anymore
 798                         Thread t = new Thread (new ThreadStart (ThreadedPrincipalTest.WindowsPrincipal));
 799                         try {
 800                                 t.Start ();
 801                                 t.Join ();
 802                         } catch {
 803 #if MONO_FEATURE_THREAD_ABORT
 804                                 t.Abort ();
 805 #else
 806                                 t.Interrupt ();
 807 #endif
 808                         }
 809                 }
 810
 811                 [Test]
 812                 public void IPrincipal_CopyOnNewThread ()
 813                 {
 814                         Thread.CurrentPrincipal = new GenericPrincipal (new GenericIdentity ("bad"), null);
 815                         Thread t = new Thread (new ThreadStart (ThreadedPrincipalTest.CopyOnNewThread));
 816                         try {
 817                                 Thread.CurrentPrincipal = new GenericPrincipal (new GenericIdentity ("good"), null);
 818                                 t.Start ();
 819                                 t.Join ();
 820                         } catch {
 821 #if MONO_FEATURE_THREAD_ABORT
 822                                 t.Abort ();
 823 #else
 824                                 t.Interrupt ();
 825 #endif
 826                         }
 827                 }
 828
 829                 int counter = 0;
 830
 831 #if MONO_FEATURE_THREAD_SUSPEND_RESUME
 832                 [Test]
 833                 public void TestSuspend ()
 834                 {
 835                         Thread t = new Thread (new ThreadStart (DoCount));
 836                         t.IsBackground = true;
 837                         t.Start ();
 838
 839                         CheckIsRunning ("t1", t);
 840
 841                         t.Suspend ();
 842                         WaitSuspended ("t2", t);
 843
 844                         CheckIsNotRunning ("t3", t);
 845
 846                         t.Resume ();
 847                         WaitResumed ("t4", t);
 848
 849                         CheckIsRunning ("t5", t);
 850
 851                         t.Abort ();
 852                         TestUtil.WaitForNotAlive (t, "wait13");
 853                         CheckIsNotRunning ("t6", t);
 854                 }
 855 #endif
 856
 857 #if MONO_FEATURE_THREAD_SUSPEND_RESUME && MONO_FEATURE_THREAD_ABORT
 858                 [Test]
 859                 [Category("NotDotNet")] // On MS, ThreadStateException is thrown on Abort: "Thread is suspended; attempting to abort"
 860                 public void TestSuspendAbort ()
 861                 {
 862                         if (is_win32 && is_mono)
 863                                 Assert.Fail ("This test fails on Win32. The test should be fixed.");
 864
 865                         Thread t = new Thread (new ThreadStart (DoCount));
 866                         t.IsBackground = true;
 867                         t.Start ();
 868
 869                         CheckIsRunning ("t1", t);
 870
 871                         t.Suspend ();
 872                         WaitSuspended ("t2", t);
 873
 874                         CheckIsNotRunning ("t3", t);
 875
 876                         t.Abort ();
 877
 878                         int n=0;
 879                         while (t.IsAlive && n < 200) {
 880                                 Thread.Sleep (10);
 881                                 n++;
 882                         }
 883
 884                         Assert.IsTrue (n < 200, "Timeout while waiting for abort");
 885
 886                         CheckIsNotRunning ("t6", t);
 887                 }
 888 #endif
 889
 890                 [Test]
 891                 public void Test_Interrupt ()
 892                 {
 893                         ManualResetEvent mre = new ManualResetEvent (false);
 894                         bool interruptedExceptionThrown = false;
 895
 896                         ThreadPool.QueueUserWorkItem (Test_Interrupt_Worker, Thread.CurrentThread);
 897
 898                         try {
 899                                 try {
 900                                         mre.WaitOne (3000);
 901                                 } finally {
 902                                         try {
 903                                                 mre.WaitOne (0);
 904                                         } catch (ThreadInterruptedException) {
 905                                                 Assert.Fail ("ThreadInterruptedException thrown twice");
 906                                         }
 907                                 }
 908                         } catch (ThreadInterruptedException) {
 909                                 interruptedExceptionThrown = true;
 910                         }
 911
 912                         Assert.IsTrue (interruptedExceptionThrown, "ThreadInterruptedException expected.");
 913                 }
 914
 915                 [Test]
 916                 [ExpectedException (typeof (ArgumentNullException))]
 917                 public void TestQueueUserWorkItemNullCallback ()
 918                 {
 919                         ThreadPool.QueueUserWorkItem (null, null);
 920                 }
 921
 922                 private void Test_Interrupt_Worker (object o)
 923                 {
 924                         Thread t = o as Thread;
 925                         Thread.Sleep (100);
 926                         t.Interrupt ();
 927                 }
 928
 929                 [Test]
 930                 [Category ("NotDotNet")] // it crashes nunit.
 931                 public void Test_InterruptCurrentThread ()
 932                 {
 933                         ManualResetEvent mre = new ManualResetEvent (false);
 934                         bool interruptedExceptionThrown = false;
 935
 936                         Thread.CurrentThread.Interrupt ();
 937                         try {
 938                                 mre.WaitOne (0);
 939                                 Assert.Fail ();
 940                         } catch (ThreadInterruptedException) {
 941                         }
 942                 }
 943
 944                 [Test]
 945                 public void GetNamedDataSlotTest ()
 946                 {
 947                         Assert.IsNotNull (Thread.GetNamedDataSlot ("te#st"), "#1");
 948                         Assert.AreSame (Thread.GetNamedDataSlot ("te#st"), Thread.GetNamedDataSlot ("te#st"), "#2");
 949                 }
 950
 951                 class DomainClass : MarshalByRefObject {
 952                         Thread m_thread;
 953                         bool success;
 954
 955                         public bool Run () {
 956                                 m_thread = new Thread(ThreadProc);
 957                                 m_thread.Start(Thread.CurrentThread);
 958                                 m_thread.Join();
 959                                 return success;
 960                         }
 961
 962                         public void ThreadProc (object arg) {
 963                                 success = m_thread == Thread.CurrentThread;
 964                         }
 965                 }
 966
 967 #if MONO_FEATURE_MULTIPLE_APPDOMAINS
 968                 [Test]
 969                 public void CurrentThread_Domains ()
 970                 {
 971                         AppDomain ad = AppDomain.CreateDomain ("foo");
 972                         ad.Load (typeof (DomainClass).Assembly.GetName ());
 973                         var o = (DomainClass)ad.CreateInstanceAndUnwrap (typeof (DomainClass).Assembly.FullName, typeof (DomainClass).FullName);
 974                         Assert.IsTrue (o.Run ());
 975                         AppDomain.Unload (ad);
 976                 }
 977 #endif // MONO_FEATURE_MULTIPLE_APPDOMAINS
 978
 979                 void CheckIsRunning (string s, Thread t)
 980                 {
 981                         int c = counter;
 982                         Thread.Sleep (100);
 983                         Assert.IsTrue (counter > c, s);
 984                 }
 985
 986                 void CheckIsNotRunning (string s, Thread t)
 987                 {
 988                         int c = counter;
 989                         Thread.Sleep (100);
 990                         Assert.AreEqual (counter, c, s);
 991                 }
 992
 993                 void WaitSuspended (string s, Thread t)
 994                 {
 995                         int n=0;
 996                         ThreadState state = t.ThreadState;
 997                         while ((state & ThreadState.Suspended) == 0) {
 998                                 Assert.IsTrue ((state & ThreadState.SuspendRequested) != 0, s + ": expected SuspendRequested state");
 999                                 Thread.Sleep (10);
1000                                 n++;
1001                                 Assert.IsTrue (n < 100, s + ": failed to suspend");
1002                                 state = t.ThreadState;
1003                         }
1004                         Assert.IsTrue ((state & ThreadState.SuspendRequested) == 0, s + ": SuspendRequested state not expected");
1005                 }
1006
1007                 void WaitResumed (string s, Thread t)
1008                 {
1009                         int n=0;
1010                         while ((t.ThreadState & ThreadState.Suspended) != 0) {
1011                                 Thread.Sleep (10);
1012                                 n++;
1013                                 Assert.IsTrue (n < 100, s + ": failed to resume");
1014                         }
1015                 }
1016
1017                 public void DoCount ()
1018                 {
1019                         while (true) {
1020                                 counter++;
1021                                 Thread.Sleep (1);
1022                         }
1023                 }
1024         }
1025
1026         [TestFixture]
1027         public class ThreadStateTest {
1028                 void Start ()
1029                 {
1030                 }
1031
1032                 [Test] // bug #81720
1033                 public void IsBackGround ()
1034                 {
1035                         Thread t1 = new Thread (new ThreadStart (Start));
1036                         Assert.AreEqual (ThreadState.Unstarted, t1.ThreadState, "#A1");
1037                         Assert.IsFalse (t1.IsBackground, "#A2");
1038                         t1.Start ();
1039                         t1.Join ();
1040                         Assert.AreEqual (ThreadState.Stopped, t1.ThreadState, "#A3");
1041
1042                         try {
1043                                 bool isBackGround = t1.IsBackground;
1044                                 Assert.Fail ("#A4: " + isBackGround.ToString ());
1045                         } catch (ThreadStateException ex) {
1046                                 Assert.AreEqual (typeof (ThreadStateException), ex.GetType (), "#A5");
1047                                 Assert.IsNull (ex.InnerException, "#A6");
1048                                 Assert.IsNotNull (ex.Message, "#A7");
1049                         }
1050
1051                         Thread t2 = new Thread (new ThreadStart (Start));
1052                         Assert.AreEqual (ThreadState.Unstarted, t2.ThreadState, "#B1");
1053                         t2.IsBackground = true;
1054                         Assert.AreEqual (ThreadState.Unstarted | ThreadState.Background, t2.ThreadState, "#B2");
1055                         Assert.IsTrue (t2.IsBackground, "#B3");
1056                         t2.Start ();
1057                         t2.Join ();
1058                         Assert.AreEqual (ThreadState.Stopped, t2.ThreadState, "#B4");
1059
1060                         try {
1061                                 bool isBackGround = t2.IsBackground;
1062                                 Assert.Fail ("#B5: " + isBackGround.ToString ());
1063                         } catch (ThreadStateException ex) {
1064                                 Assert.AreEqual (typeof (ThreadStateException), ex.GetType (), "#B6");
1065                                 Assert.IsNull (ex.InnerException, "#B7");
1066                                 Assert.IsNotNull (ex.Message, "#B8");
1067                         }
1068                 }
1069         }
1070
1071         [TestFixture]
1072         [Serializable]
1073         public class ThreadTest_ManagedThreadId
1074         {
1075                 AppDomain ad1;
1076                 AppDomain ad2;
1077                 MBRO mbro = new MBRO ();
1078
1079                 class MBRO : MarshalByRefObject {
1080                         public int id_a1;
1081                         public int id_b1;
1082                         public int id_b2;
1083                         public string ad_a1;
1084                         public string ad_b1;
1085                         public string ad_b2;
1086                         public string message;
1087                 }
1088 #if !MOBILE
1089                 [Test]
1090                 public void ManagedThreadId_AppDomains ()
1091                 {
1092                         AppDomain currentDomain = AppDomain.CurrentDomain;
1093                         ad1 = AppDomain.CreateDomain ("AppDomain 1", currentDomain.Evidence, currentDomain.SetupInformation);
1094                         ad2 = AppDomain.CreateDomain ("AppDomain 2", currentDomain.Evidence, currentDomain.SetupInformation);
1095
1096                         Thread a = new Thread (ThreadA);
1097                         Thread b = new Thread (ThreadB);
1098                         // execute on AppDomain 1 thread A
1099                         // execute on AppDomain 2 thread B
1100                         // execute on AppDomain 1 thread B - must have same ManagedThreadId as Ad 2 on thread B
1101                         a.Start ();
1102                         a.Join ();
1103                         b.Start ();
1104                         b.Join ();
1105
1106                         AppDomain.Unload (ad1);
1107                         AppDomain.Unload (ad2);
1108
1109                         if (mbro.message != null)
1110                                 Assert.Fail (mbro.message);
1111
1112                         // Console.WriteLine ("Done id_a1: {0} id_b1: {1} id_b2: {2} ad_a1: {3} ad_b1: {4} ad_b2: {5}", mbro.id_a1, mbro.id_b1, mbro.id_b2, mbro.ad_a1, mbro.ad_b1, mbro.ad_b2);
1113
1114                         Assert.AreEqual ("AppDomain 1", mbro.ad_a1, "Name #1");
1115                         Assert.AreEqual ("AppDomain 1", mbro.ad_b1, "Name #2");
1116                         Assert.AreEqual ("AppDomain 2", mbro.ad_b2, "Name #3");
1117
1118                         Assert.AreNotEqual (mbro.id_a1, mbro.id_b1, "Id #1");
1119                         Assert.AreNotEqual (mbro.id_a1, mbro.id_b2, "Id #2");
1120                         Assert.AreEqual (mbro.id_b1, mbro.id_b2, "Id #3");
1121
1122                         Assert.AreNotEqual (mbro.id_a1, Thread.CurrentThread.ManagedThreadId, "Id #4");
1123                         Assert.AreNotEqual (mbro.id_b1, Thread.CurrentThread.ManagedThreadId, "Id #5");
1124                         Assert.AreNotEqual (mbro.id_b2, Thread.CurrentThread.ManagedThreadId, "Id #6");
1125                         Assert.AreNotEqual (mbro.ad_a1, AppDomain.CurrentDomain.FriendlyName, "Name #4");
1126                         Assert.AreNotEqual (mbro.ad_b1, AppDomain.CurrentDomain.FriendlyName, "Name #5");
1127                         Assert.AreNotEqual (mbro.ad_b2, AppDomain.CurrentDomain.FriendlyName, "Name #6");
1128                 }
1129 #endif
1130                 void A1 ()
1131                 {
1132                         mbro.id_a1 = Thread.CurrentThread.ManagedThreadId;
1133                         mbro.ad_a1 = AppDomain.CurrentDomain.FriendlyName;
1134                 }
1135
1136                 void B2 ()
1137                 {
1138                         mbro.id_b2 = Thread.CurrentThread.ManagedThreadId;
1139                         mbro.ad_b2 = AppDomain.CurrentDomain.FriendlyName;
1140                 }
1141
1142                 void B1 ()
1143                 {
1144                         mbro.id_b1 = Thread.CurrentThread.ManagedThreadId;
1145                         mbro.ad_b1 = AppDomain.CurrentDomain.FriendlyName;
1146                 }
1147
1148                 void ThreadA (object obj)
1149                 {
1150                         // Console.WriteLine ("ThreadA");
1151                         try {
1152                                 ad1.DoCallBack (A1);
1153                         } catch (Exception ex) {
1154                                 mbro.message = string.Format ("ThreadA exception: {0}", ex);
1155                         }
1156                         // Console.WriteLine ("ThreadA Done");
1157                 }
1158
1159                 void ThreadB (object obj)
1160                 {
1161                         // Console.WriteLine ("ThreadB");
1162                         try {
1163                                 ad2.DoCallBack (B2);
1164                                 ad1.DoCallBack (B1);
1165                         } catch (Exception ex) {
1166                                 mbro.message = string.Format ("ThreadB exception: {0}", ex);
1167                         }
1168                         // Console.WriteLine ("ThreadB Done");
1169                 }
1170         }
1171
1172         [TestFixture]
1173         public class ThreadApartmentTest
1174         {
1175                 void Start ()
1176                 {
1177                 }
1178
1179                 [Test] // bug #81658
1180                 public void ApartmentState_StoppedThread ()
1181                 {
1182                         Thread t1 = new Thread (new ThreadStart (Start));
1183                         t1.Start ();
1184                         t1.Join ();
1185                         try {
1186                                 ApartmentState state = t1.ApartmentState;
1187                                 Assert.Fail ("#A1: " + state.ToString ());
1188                         } catch (ThreadStateException ex) {
1189                                 Assert.AreEqual (typeof (ThreadStateException), ex.GetType (), "#A2");
1190                                 Assert.IsNull (ex.InnerException, "#A3");
1191                                 Assert.IsNotNull (ex.Message, "#A4");
1192                         }
1193
1194                         Thread t2 = new Thread (new ThreadStart (Start));
1195                         t2.IsBackground = true;
1196                         t2.Start ();
1197                         t2.Join ();
1198                         try {
1199                                 ApartmentState state = t2.ApartmentState;
1200                                 Assert.Fail ("#B1: " + state.ToString ());
1201                         } catch (ThreadStateException ex) {
1202                                 Assert.AreEqual (typeof (ThreadStateException), ex.GetType (), "#B2");
1203                                 Assert.IsNull (ex.InnerException, "#B3");
1204                                 Assert.IsNotNull (ex.Message, "#B4");
1205                         }
1206                 }
1207
1208                 [Test]
1209                 public void ApartmentState_BackGround ()
1210                 {
1211                         Thread t1 = new Thread (new ThreadStart (Start));
1212                         t1.IsBackground = true;
1213                         Assert.AreEqual (ApartmentState.Unknown, t1.ApartmentState, "#1");
1214                         t1.ApartmentState = ApartmentState.STA;
1215                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "#2");
1216                 }
1217
1218                 [Test]
1219                 public void TestApartmentState ()
1220                 {
1221                         Thread t1 = new Thread (new ThreadStart (Start));
1222                         Thread t2 = new Thread (new ThreadStart (Start));
1223                         Thread t3 = new Thread (new ThreadStart (Start));
1224
1225                         Assert.AreEqual (ApartmentState.Unknown, t1.ApartmentState, "Thread1 Default");
1226                         Assert.AreEqual (ApartmentState.Unknown, t2.ApartmentState, "Thread2 Default");
1227                         Assert.AreEqual (ApartmentState.Unknown, t3.ApartmentState, "Thread3 Default");
1228
1229                         t1.ApartmentState = ApartmentState.STA;
1230                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "Thread1 Set Once");
1231                         t1.ApartmentState = ApartmentState.MTA;
1232                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "Thread1 Set Twice");
1233
1234                         t2.ApartmentState = ApartmentState.MTA;
1235                         Assert.AreEqual (ApartmentState.MTA, t2.ApartmentState, "Thread2 Set Once");
1236                         t2.ApartmentState = ApartmentState.STA;
1237                         Assert.AreEqual (ApartmentState.MTA, t2.ApartmentState, "Thread2 Set Twice");
1238
1239                         bool exception_occured = false;
1240                         try {
1241                                 t3.ApartmentState = ApartmentState.Unknown;
1242                         }
1243                         catch (Exception) {
1244                                 exception_occured = true;
1245                         }
1246                         Assert.AreEqual (ApartmentState.Unknown, t3.ApartmentState, "Thread3 Set Invalid");
1247                         Assert.IsFalse (exception_occured, "Thread3 Set Invalid Exception Occured");
1248
1249                         t1.Start ();
1250                         exception_occured = false;
1251                         try {
1252                                 t1.ApartmentState = ApartmentState.STA;
1253                         }
1254                         catch (Exception) {
1255                                 exception_occured = true;
1256                         }
1257                         Assert.IsTrue (exception_occured, "Thread1 Started Invalid Exception Occured");
1258                 }
1259
1260                 [Test]
1261                 public void TestSetApartmentStateSameState ()
1262                 {
1263                         Thread t1 = new Thread (new ThreadStart (Start));
1264                         t1.SetApartmentState (ApartmentState.STA);
1265                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "Thread1 Set Once");
1266
1267                         t1.SetApartmentState (ApartmentState.STA);
1268                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "Thread1 Set twice");
1269                 }
1270
1271                 [Test]
1272                 [ExpectedException(typeof(InvalidOperationException))]
1273                 public void TestSetApartmentStateDiffState ()
1274                 {
1275                         Thread t1 = new Thread (new ThreadStart (Start));
1276                         t1.SetApartmentState (ApartmentState.STA);
1277                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "Thread1 Set Once");
1278
1279                         t1.SetApartmentState (ApartmentState.MTA);
1280                 }
1281
1282                 [Test]
1283                 public void TestTrySetApartmentState ()
1284                 {
1285                         Thread t1 = new Thread (new ThreadStart (Start));
1286                         t1.SetApartmentState (ApartmentState.STA);
1287                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "#1");
1288
1289                         bool result = t1.TrySetApartmentState (ApartmentState.MTA);
1290                         Assert.IsFalse (result, "#2");
1291
1292                         result = t1.TrySetApartmentState (ApartmentState.STA);
1293                         Assert.IsTrue (result, "#3");
1294                 }
1295
1296                 [Test]
1297                 public void TestTrySetApartmentStateRunning ()
1298                 {
1299                         Thread t1 = new Thread (new ThreadStart (Start));
1300                         t1.SetApartmentState (ApartmentState.STA);
1301                         Assert.AreEqual (ApartmentState.STA, t1.ApartmentState, "#1");
1302
1303                         t1.Start ();
1304
1305                         try {
1306                                 t1.TrySetApartmentState (ApartmentState.STA);
1307                                 Assert.Fail ("#2");
1308                         } catch (ThreadStateException) {
1309                         }
1310
1311                         t1.Join ();
1312                 }
1313
1314                 [Test]
1315                 public void Volatile () {
1316                         double v3 = 55667;
1317                         Thread.VolatileWrite (ref v3, double.MaxValue);
1318                         Assert.AreEqual (v3, double.MaxValue);
1319
1320                         float v4 = 1;
1321                         Thread.VolatileWrite (ref v4, float.MaxValue);
1322                         Assert.AreEqual (v4, float.MaxValue);
1323                 }
1324
1325                 [Test]
1326                 public void Culture ()
1327                 {
1328                         Assert.IsNotNull (Thread.CurrentThread.CurrentCulture, "CurrentCulture");
1329                         Assert.IsNotNull (Thread.CurrentThread.CurrentUICulture, "CurrentUICulture");
1330                 }
1331
1332                 [Test]
1333                 public void ThreadStartSimple ()
1334                 {
1335                         int i = 0;
1336                         Thread t = new Thread (delegate () {
1337                                 // ensure the NSAutoreleasePool works
1338                                 i++;
1339                         });
1340                         t.Start ();
1341                         t.Join ();
1342                         Assert.AreEqual (1, i, "ThreadStart");
1343                 }
1344
1345                 [Test]
1346                 public void ParametrizedThreadStart ()
1347                 {
1348                         int i = 0;
1349                         object arg = null;
1350                         Thread t = new Thread (delegate (object obj) {
1351                                 // ensure the NSAutoreleasePool works
1352                                 i++;
1353                                 arg = obj;
1354                         });
1355                         t.Start (this);
1356                         t.Join ();
1357
1358                         Assert.AreEqual (1, i, "ParametrizedThreadStart");
1359                         Assert.AreEqual (this, arg, "obj");
1360                 }
1361
1362                 [Test]
1363                 public void SetNameTpThread () {
1364                         ThreadPool.QueueUserWorkItem(new WaitCallback(ThreadProc));
1365                 }
1366
1367                 static void ThreadProc(Object stateInfo) {
1368                         Thread.CurrentThread.Name = "My Worker";
1369                 }
1370
1371                 [Test]
1372                 public void GetStackTraces () {
1373                         var m = typeof (Thread).GetMethod ("Mono_GetStackTraces", BindingFlags.NonPublic|BindingFlags.Static);
1374                         if (m != null) {
1375                                 var res = (Dictionary<Thread,SD.StackTrace>)typeof (Thread).GetMethod ("Mono_GetStackTraces", BindingFlags.NonPublic|BindingFlags.Static).Invoke (null, null);
1376                                 foreach (var t in res.Keys) {
1377                                         var st = res [t].ToString ();
1378                                 }
1379                         }
1380                 }
1381         }
1382
1383         public class TestUtil
1384         {
1385                 public static void WaitForNotAlive (Thread t, string s)
1386                 {
1387                         WhileAlive (t, true, s);
1388                 }
1389
1390                 public static void WaitForAlive (Thread t, string s)
1391                 {
1392                         WhileAlive (t, false, s);
1393                 }
1394
1395                 public static bool WaitForAliveOrStop (Thread t, string s)
1396                 {
1397                         return WhileAliveOrStop (t, false, s);
1398                 }
1399
1400                 public static void WhileAlive (Thread t, bool alive, string s)
1401                 {
1402                         DateTime ti = DateTime.Now;
1403                         while (t.IsAlive == alive) {
1404                                 if ((DateTime.Now - ti).TotalSeconds > 10) {
1405                                         if (alive) Assert.Fail ("Timeout while waiting for not alive state. " + s);
1406                                         else Assert.Fail ("Timeout while waiting for alive state. " + s);
1407                                 }
1408                         }
1409                 }
1410
1411                 public static bool WhileAliveOrStop (Thread t, bool alive, string s)
1412                 {
1413                         DateTime ti = DateTime.Now;
1414                         while (t.IsAlive == alive) {
1415                                 if (t.ThreadState == ThreadState.Stopped)
1416                                         return false;
1417
1418                                 if ((DateTime.Now - ti).TotalSeconds > 10) {
1419                                         if (alive) Assert.Fail ("Timeout while waiting for not alive state. " + s);
1420                                         else Assert.Fail ("Timeout while waiting for alive state. " + s);
1421                                 }
1422                         }
1423
1424                         return true;
1425                 }
1426         }
1427 }