mcs/class/corlib/Test/System.Runtime.InteropServices/MarshalTest.cs

   1 //
   2 // System.Runtime.InteropServices.Marshal Test Cases
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // Copyright (C) 2004-2007 Novell, Inc (http://www.novell.com)
   9 //
  10 using NUnit.Framework;
  11 using System;
  12 using System.IO;
  13 using System.Reflection;
  14 #if !MOBILE
  15 using System.Reflection.Emit;
  16 #endif
  17 using System.Runtime.InteropServices;
  18 using System.Security;
  19 using System.Text;
  20
  21 namespace MonoTests.System.Runtime.InteropServices
  22 {
  23         [TestFixture]
  24         public class MarshalTest
  25         {
  26                 [StructLayout (LayoutKind.Sequential)]
  27                 class ClsSequential {
  28                         public int field;
  29                 }
  30
  31                 class ClsNoLayout {
  32                         public int field;
  33                 }
  34
  35                 [StructLayout (LayoutKind.Explicit)]
  36                 class ClsExplicit {
  37                         [FieldOffset (0)] public int field;
  38                 }
  39
  40                 [StructLayout (LayoutKind.Sequential)]
  41                 struct StrSequential {
  42                         public int field;
  43                 }
  44
  45                 struct StrNoLayout {
  46                         public int field;
  47                 }
  48
  49                 [StructLayout (LayoutKind.Explicit)]
  50                 struct StrExplicit {
  51                         [FieldOffset (0)] public int field;
  52                 }
  53
  54                 [Test]
  55                 public void SizeOf_Class_LayoutSequential ()
  56                 {
  57                         Marshal.SizeOf (typeof (ClsSequential));
  58                 }
  59
  60                 [Test]
  61                 public void SizeOf_Class_LayoutNotSet ()
  62                 {
  63                         try {
  64                                 Marshal.SizeOf (typeof (ClsNoLayout));
  65                                 Assert.Fail ("#1");
  66                         } catch (ArgumentException ex) {
  67                                 // Type '...MarshalTest+ClsNoLayout' cannot be
  68                                 // marshaled as an unmanaged structure; no
  69                                 // meaningful size or offset can be computed
  70                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
  71                                 Assert.IsNull (ex.InnerException, "#3");
  72                                 Assert.IsNotNull (ex.Message, "#4");
  73                         }
  74                 }
  75
  76                 [Test]
  77                 public void SizeOf_Class_LayoutExplicit ()
  78                 {
  79                         Marshal.SizeOf (typeof (ClsExplicit));
  80                 }
  81
  82                 [Test]
  83                 public void SizeOf_Struct_LayoutSequential ()
  84                 {
  85                         Marshal.SizeOf (typeof (StrSequential));
  86                 }
  87
  88                 [Test]
  89                 public void SizeOf_Struct_LayoutNotSet ()
  90                 {
  91                         Marshal.SizeOf (typeof (StrNoLayout));
  92                 }
  93
  94                 [Test]
  95                 public void SizeOf_Struct_LayoutExplicit ()
  96                 {
  97                         Marshal.SizeOf (typeof (StrExplicit));
  98                 }
  99
 100                 [Test]
 101                 public void SizeOf_Array ()
 102                 {
 103                         try {
 104                                 Marshal.SizeOf (typeof (string []));
 105                                 Assert.Fail ("#1");
 106                         } catch (ArgumentException ex) {
 107                                 // Type 'System.String[]' cannot be marshaled
 108                                 // as an unmanaged structure; no meaningful
 109                                 // size or offset can be computed
 110                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
 111                                 Assert.IsNull (ex.InnerException, "#3");
 112                                 Assert.IsNotNull (ex.Message, "#4");
 113                         }
 114                 }
 115
 116                 [Test]
 117                 public unsafe void Sizeof_Pointer ()
 118                 {
 119                         int size = Marshal.SizeOf (typeof (char*));
 120                         Assert.IsTrue (size == 4 || size == 8);
 121                 }
 122
 123                 [Test]
 124                 public void PtrToStringWithNull ()
 125                 {
 126                         Assert.IsNull (Marshal.PtrToStringAnsi (IntPtr.Zero), "A");
 127                         Assert.IsNull (Marshal.PtrToStringUni (IntPtr.Zero), "C");
 128                 }
 129
 130                 [Test]
 131                 public void PtrToStringAnsi_Ptr_Zero ()
 132                 {
 133                         try {
 134                                 Marshal.PtrToStringAnsi (IntPtr.Zero, 0);
 135                                 Assert.Fail ("#1");
 136                         } catch (ArgumentNullException ex) {
 137                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 138                                 Assert.IsNull (ex.InnerException, "#3");
 139                                 Assert.IsNotNull (ex.Message, "#4");
 140                                 Assert.AreEqual ("ptr", ex.ParamName, "#5");
 141                         }
 142                 }
 143
 144                 [Test]
 145                 public void PtrToStringWithUni_Ptr_Zero ()
 146                 {
 147                         try {
 148                                 Marshal.PtrToStringUni (IntPtr.Zero, 0);
 149                                 Assert.Fail ("#1");
 150                         } catch (ArgumentNullException ex) {
 151                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 152                                 Assert.IsNull (ex.InnerException, "#3");
 153                                 Assert.IsNotNull (ex.Message, "#4");
 154                                 Assert.AreEqual ("ptr", ex.ParamName, "#5");
 155                         }
 156                 }
 157
 158                 [Test]
 159                 public unsafe void UnsafeAddrOfPinnedArrayElement ()
 160                 {
 161                         short[] sarr = new short [5];
 162                         sarr [2] = 3;
 163
 164                         IntPtr ptr = Marshal.UnsafeAddrOfPinnedArrayElement (sarr, 2);
 165                         Assert.AreEqual (3, *(short*) ptr.ToPointer ());
 166                 }
 167
 168                 [Test]
 169                 public void AllocHGlobalZeroSize ()
 170                 {
 171                         IntPtr ptr = Marshal.AllocHGlobal (0);
 172                         Assert.IsTrue (ptr != IntPtr.Zero);
 173                         Marshal.FreeHGlobal (ptr);
 174                 }
 175
 176                 struct Foo {
 177                         int a;
 178                         static int b;
 179                         long c;
 180                         static char d;
 181                         int e;
 182                 }
 183
 184                 [Test]
 185                 public void OffsetOf_FieldName_Static ()
 186                 {
 187                         try {
 188                                 Marshal.OffsetOf (typeof (Foo), "b");
 189                                 Assert.Fail ("#1");
 190                         } catch (ArgumentException ex) {
 191                                 // Field passed in is not a marshaled member of
 192                                 // the type '...MarshalTest+Foo'
 193                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
 194                                 Assert.IsNull (ex.InnerException, "#3");
 195                                 Assert.IsNotNull (ex.Message, "#4");
 196                                 Assert.AreEqual ("fieldName", ex.ParamName, "#5");
 197                         }
 198                 }
 199 #if !MOBILE
 200                 [Test]
 201                 public void GetHINSTANCE ()
 202                 {
 203                         if (RunningOnUnix)
 204                                 Assert.Ignore ("GetHINSTANCE only applies to Windows.");
 205
 206                         Assembly a;
 207                         IntPtr hinstance;
 208                         StringBuilder fileName;
 209
 210                         fileName = new StringBuilder (255);
 211                         a = Assembly.GetExecutingAssembly ();
 212                         hinstance = Marshal.GetHINSTANCE (a.GetModules () [0]);
 213                         Assert.IsTrue (GetModuleFileName (hinstance, fileName,
 214                                 fileName.Capacity) > 0, "#A1");
 215                         Assert.AreEqual (a.Location, fileName.ToString (), "#A2");
 216
 217                         fileName.Length = 0;
 218                         a = typeof (int).Assembly;
 219                         hinstance = Marshal.GetHINSTANCE (a.GetModules () [0]);
 220                         Assert.IsTrue (GetModuleFileName (hinstance, fileName,
 221                                 fileName.Capacity) > 0, "#B1");
 222                         Assert.IsTrue (File.Exists (fileName.ToString ()), "#B3");
 223                         Assert.AreEqual ("mscorlib.dll", Path.GetFileName (fileName.ToString ()), "#B4");
 224                 }
 225
 226                 [Test]
 227                 public void GetHINSTANCE_Module_Dynamic ()
 228                 {
 229                         AssemblyName aname = new AssemblyName ();
 230                         aname.Name = "foo";
 231
 232                         AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly (
 233                                 aname, AssemblyBuilderAccess.Save,
 234                                 Path.GetTempPath ());
 235                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", false);
 236
 237                         IntPtr hinstance = Marshal.GetHINSTANCE (mb);
 238                         Assert.AreEqual (-1, hinstance.ToInt32 ());
 239                 }
 240
 241                 [Test]
 242                 public void GetHINSTANCE_Module_Null ()
 243                 {
 244                         try {
 245                                 Marshal.GetHINSTANCE ((Module) null);
 246                                 Assert.Fail ("#1");
 247                         } catch (ArgumentNullException ex) {
 248                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 249                                 Assert.IsNull (ex.InnerException, "#3");
 250                                 Assert.IsNotNull (ex.Message, "#4");
 251                                 Assert.AreEqual ("m", ex.ParamName, "#5");
 252                         }
 253                 }
 254 #endif
 255                 [Test] // bug #319009
 256                 public void StringToHGlobalUni ()
 257                 {
 258                         IntPtr handle = Marshal.StringToHGlobalUni ("unicode data");
 259                         string s = Marshal.PtrToStringUni (handle);
 260                         Assert.AreEqual (12, s.Length, "#1");
 261
 262                         handle = Marshal.StringToHGlobalUni ("unicode data string");
 263                         s = Marshal.PtrToStringUni (handle);
 264                         Assert.AreEqual (19, s.Length, "#2");
 265                 }
 266
 267                 [Test]
 268                 public void ReadIntByte ()
 269                 {
 270                         IntPtr ptr = Marshal.AllocHGlobal (4);
 271                         try {
 272                                 Marshal.WriteByte (ptr, 0, 0x1);
 273                                 Marshal.WriteByte (ptr, 1, 0x2);
 274                                 Assert.AreEqual (0x1, Marshal.ReadByte (ptr));
 275                                 Assert.AreEqual (0x1, Marshal.ReadByte (ptr, 0));
 276                                 Assert.AreEqual (0x2, Marshal.ReadByte (ptr, 1));
 277                         } finally {
 278                                 Marshal.FreeHGlobal (ptr);
 279                         }
 280                 }
 281
 282                 [Test]
 283                 public void ReadInt16 ()
 284                 {
 285                         IntPtr ptr = Marshal.AllocHGlobal (64);
 286                         try {
 287                                 Marshal.WriteInt16 (ptr, 0, 0x1234);
 288                                 Marshal.WriteInt16 (ptr, 2, 0x4567);
 289                                 Marshal.WriteInt16 (ptr, 5, 0x4567);
 290                                 Assert.AreEqual (0x1234, Marshal.ReadInt16 (ptr));
 291                                 Assert.AreEqual (0x1234, Marshal.ReadInt16 (ptr, 0));
 292                                 Assert.AreEqual (0x4567, Marshal.ReadInt16 (ptr, 2));
 293 #if NET_4_5
 294                                 Assert.AreEqual (0x4567, Marshal.ReadInt16 ((ptr + 5)));
 295 #endif
 296                                 Assert.AreEqual (0x4567, Marshal.ReadInt16 (ptr, 5));
 297                         } finally {
 298                                 Marshal.FreeHGlobal (ptr);
 299                         }
 300                 }
 301
 302                 [Test]
 303                 public void ReadInt32 ()
 304                 {
 305                         IntPtr ptr = Marshal.AllocHGlobal (64);
 306                         try {
 307                                 Marshal.WriteInt32 (ptr, 0, 0x12345678);
 308                                 Marshal.WriteInt32 (ptr, 4, 0x77654321);
 309                                 Marshal.WriteInt32 (ptr, 10, 0x77654321);
 310                                 Assert.AreEqual (0x12345678, Marshal.ReadInt32 (ptr));
 311                                 Assert.AreEqual (0x12345678, Marshal.ReadInt32 (ptr, 0));
 312                                 Assert.AreEqual (0x77654321, Marshal.ReadInt32 (ptr, 4));
 313 #if NET_4_5
 314                                 Assert.AreEqual (0x77654321, Marshal.ReadInt32 ((ptr + 10)));
 315 #endif
 316                                 Assert.AreEqual (0x77654321, Marshal.ReadInt32 (ptr, 10));
 317                         } finally {
 318                                 Marshal.FreeHGlobal (ptr);
 319                         }
 320                 }
 321
 322                 [Test]
 323                 public void ReadInt32_Endian ()
 324                 {
 325                         IntPtr ptr = Marshal.AllocHGlobal (4);
 326                         try {
 327                                 Marshal.WriteByte (ptr, 0, 0x01);
 328                                 Marshal.WriteByte (ptr, 1, 0x02);
 329                                 Marshal.WriteByte (ptr, 2, 0x03);
 330                                 Marshal.WriteByte (ptr, 3, 0x04);
 331                                 // Marshal MUST use the native CPU data
 332                                 if (BitConverter.IsLittleEndian){
 333                                         Assert.AreEqual (0x04030201, Marshal.ReadInt32 (ptr), "ReadInt32");
 334                                 } else {
 335                                         Assert.AreEqual (0x01020304, Marshal.ReadInt32 (ptr), "ReadInt32");
 336                                 }
 337                         } finally {
 338                                 Marshal.FreeHGlobal (ptr);
 339                         }
 340                 }
 341
 342                 [Test]
 343                 public void ReadInt64 ()
 344                 {
 345                         IntPtr ptr = Marshal.AllocHGlobal (16);
 346                         try {
 347                                 Marshal.WriteInt64 (ptr, 0, 0x12345678ABCDEFL);
 348                                 Marshal.WriteInt64 (ptr, 8, 0x87654321ABCDEFL);
 349                                 Assert.AreEqual (0x12345678ABCDEFL, Marshal.ReadInt64 (ptr));
 350                                 Assert.AreEqual (0x12345678ABCDEFL, Marshal.ReadInt64 (ptr, 0));
 351                                 Assert.AreEqual (0x87654321ABCDEFL, Marshal.ReadInt64 (ptr, 8));
 352                         } finally {
 353                                 Marshal.FreeHGlobal (ptr);
 354                         }
 355                 }
 356
 357                 [Test]
 358                 [Category ("MobileNotWorking")]
 359                 public void BSTR_Roundtrip ()
 360                 {
 361                         string s = "mono";
 362                         IntPtr ptr = Marshal.StringToBSTR (s);
 363                         string s2 = Marshal.PtrToStringBSTR (ptr);
 364                         Assert.AreEqual (s, s2, "string");
 365                 }
 366
 367                 [Test]
 368                 [Category ("MobileNotWorking")]
 369                 public void StringToBSTRWithNullValues ()
 370                 {
 371                         int size = 128;
 372                         string s = String.Empty.PadLeft (size, '\0');
 373                         Assert.AreEqual (size, s.Length, "Length-1");
 374
 375                         IntPtr ptr = Marshal.StringToBSTR (s);
 376                         try {
 377                                 for (int i = 0; i < size; i += 4)
 378                                         Marshal.WriteInt32 (ptr, i, 0);
 379
 380                                 string s2 = Marshal.PtrToStringBSTR (ptr);
 381                                 Assert.AreEqual (128, s2.Length, "Length-2");
 382                         } finally {
 383                                 Marshal.FreeBSTR (ptr);
 384                         }
 385                 }
 386
 387                 [Test]
 388                 public void StringToHGlobalAnsiWithNullValues ()
 389                 {
 390                         int size = 128;
 391                         string s = String.Empty.PadLeft (size, '\0');
 392                         Assert.AreEqual (size, s.Length, "Length-1");
 393
 394                         IntPtr ptr = Marshal.StringToHGlobalAnsi (s);
 395                         try {
 396                                 for (int i = 0; i < size; i += 4)
 397                                         Marshal.WriteInt32 (ptr, i, 0);
 398
 399                                 string s2 = Marshal.PtrToStringAnsi (ptr);
 400                                 Assert.AreEqual (0, s2.Length, "Length-2");
 401                         } finally {
 402                                 Marshal.FreeHGlobal (ptr);
 403                         }
 404                 }
 405
 406                 [Test]
 407                 public void StringToHGlobalAutoWithNullValues ()
 408                 {
 409                         int size = 128;
 410                         string s = String.Empty.PadLeft (size, '\0');
 411                         Assert.AreEqual (size, s.Length, "Length-1");
 412
 413                         IntPtr ptr = Marshal.StringToHGlobalAuto (s);
 414                         try {
 415                                 for (int i = 0; i < size; i += 4)
 416                                         Marshal.WriteInt32 (ptr, i, 0);
 417
 418                                 string s2 = Marshal.PtrToStringAuto (ptr);
 419                                 Assert.AreEqual (0, s2.Length, "Length-2");
 420                         } finally {
 421                                 Marshal.FreeHGlobal (ptr);
 422                         }
 423                 }
 424
 425                 [Test]
 426                 public void StringToHGlobalUniWithNullValues ()
 427                 {
 428                         int size = 128;
 429                         string s = String.Empty.PadLeft (size, '\0');
 430                         Assert.AreEqual (size, s.Length, "Length-1");
 431
 432                         IntPtr ptr = Marshal.StringToHGlobalUni (s);
 433                         try {
 434                                 for (int i = 0; i < size; i += 4)
 435                                         Marshal.WriteInt32 (ptr, i, 0);
 436
 437                                 string s2 = Marshal.PtrToStringUni (ptr);
 438                                 Assert.AreEqual (0, s2.Length, "Length-2");
 439                         } finally {
 440                                 Marshal.FreeHGlobal (ptr);
 441                         }
 442                 }
 443
 444                 [Test]
 445                 public void StringToCoTaskMemAnsiWithNullValues ()
 446                 {
 447                         int size = 128;
 448                         string s = String.Empty.PadLeft (size, '\0');
 449                         Assert.AreEqual (size, s.Length, "Length-1");
 450
 451                         IntPtr ptr = Marshal.StringToCoTaskMemAnsi (s);
 452                         try {
 453                                 for (int i = 0; i < size; i += 4)
 454                                         Marshal.WriteInt32 (ptr, i, 0);
 455
 456                                 string s2 = Marshal.PtrToStringAnsi (ptr);
 457                                 Assert.AreEqual (0, s2.Length, "Length-2");
 458                         } finally {
 459                                 Marshal.FreeCoTaskMem (ptr);
 460                         }
 461                 }
 462
 463                 [Test]
 464                 public void StringToCoTaskMemAutoWithNullValues ()
 465                 {
 466                         int size = 128;
 467                         string s = String.Empty.PadLeft (size, '\0');
 468                         Assert.AreEqual (size, s.Length, "Length-1");
 469
 470                         IntPtr ptr = Marshal.StringToCoTaskMemAuto (s);
 471                         try {
 472                                 for (int i = 0; i < size; i += 4)
 473                                         Marshal.WriteInt32 (ptr, i, 0);
 474
 475                                 string s2 = Marshal.PtrToStringAuto (ptr);
 476                                 Assert.AreEqual (0, s2.Length, "Length-2");
 477                         } finally {
 478                                 Marshal.FreeCoTaskMem (ptr);
 479                         }
 480                 }
 481
 482                 [Test]
 483                 public void StringToCoTaskMemUniWithNullValues ()
 484                 {
 485                         int size = 128;
 486                         string s = String.Empty.PadLeft (size, '\0');
 487                         Assert.AreEqual (size, s.Length, "Length-1");
 488
 489                         IntPtr ptr = Marshal.StringToCoTaskMemUni (s);
 490                         try {
 491                                 for (int i = 0; i < size; i += 4)
 492                                         Marshal.WriteInt32 (ptr, i, 0);
 493
 494                                 string s2 = Marshal.PtrToStringUni (ptr);
 495                                 Assert.AreEqual (0, s2.Length, "Length-2");
 496                         } finally {
 497                                 Marshal.FreeCoTaskMem (ptr);
 498                         }
 499                 }
 500 #if NET_2_0
 501                 private const string NotSupported = "Not supported before Windows 2000 Service Pack 3";
 502                 private static char[] PlainText = new char[] { 'a', 'b', 'c' };
 503                 private static byte[] AsciiPlainText = new byte[] { (byte) 'a', (byte) 'b', (byte) 'c' };
 504
 505                 private unsafe SecureString GetSecureString ()
 506                 {
 507                         fixed (char* p = &PlainText[0]) {
 508                                 return new SecureString (p, PlainText.Length);
 509                         }
 510                 }
 511
 512                 [Test]
 513                 public void SecureStringToBSTR_Null ()
 514                 {
 515                         try {
 516                                 Marshal.SecureStringToBSTR (null);
 517                                 Assert.Fail ("#1");
 518                         } catch (ArgumentNullException ex) {
 519                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 520                                 Assert.IsNull (ex.InnerException, "#3");
 521                                 Assert.IsNotNull (ex.Message, "#4");
 522                                 Assert.AreEqual ("s", ex.ParamName, "#5");
 523                         }
 524                 }
 525
 526                 [Test]
 527                 public void SecureStringToBSTR ()
 528                 {
 529                         try {
 530                                 SecureString ss = GetSecureString ();
 531                                 IntPtr p = Marshal.SecureStringToBSTR (ss);
 532
 533                                 char[] decrypted = new char[ss.Length];
 534                                 Marshal.Copy (p, decrypted, 0, decrypted.Length);
 535                                 Assert.AreEqual (PlainText, decrypted, "Decrypted");
 536
 537                                 Marshal.ZeroFreeBSTR (p);
 538                         } catch (NotSupportedException) {
 539                                 Assert.Ignore (NotSupported);
 540                         }
 541                 }
 542
 543                 [Test]
 544                 public void SecureStringToCoTaskMemAnsi_Null ()
 545                 {
 546                         try {
 547                                 Marshal.SecureStringToCoTaskMemAnsi (null);
 548                                 Assert.Fail ("#1");
 549                         } catch (ArgumentNullException ex) {
 550                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 551                                 Assert.IsNull (ex.InnerException, "#3");
 552                                 Assert.IsNotNull (ex.Message, "#4");
 553                                 Assert.AreEqual ("s", ex.ParamName, "#5");
 554                         }
 555                 }
 556
 557                 [Test]
 558                 public void SecureStringToCoTaskMemAnsi ()
 559                 {
 560                         try {
 561                                 SecureString ss = GetSecureString ();
 562                                 IntPtr p = Marshal.SecureStringToCoTaskMemAnsi (ss);
 563
 564                                 byte[] decrypted = new byte[ss.Length];
 565                                 Marshal.Copy (p, decrypted, 0, decrypted.Length);
 566                                 Assert.AreEqual (AsciiPlainText, decrypted, "Decrypted");
 567
 568                                 Marshal.ZeroFreeCoTaskMemAnsi (p);
 569                         } catch (NotSupportedException) {
 570                                 Assert.Ignore (NotSupported);
 571                         }
 572                 }
 573
 574                 [Test]
 575                 public void SecureStringToCoTaskMemUnicode_Null ()
 576                 {
 577                         try {
 578                                 Marshal.SecureStringToCoTaskMemUnicode (null);
 579                                 Assert.Fail ("#1");
 580                         } catch (ArgumentNullException ex) {
 581                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 582                                 Assert.IsNull (ex.InnerException, "#3");
 583                                 Assert.IsNotNull (ex.Message, "#4");
 584                                 Assert.AreEqual ("s", ex.ParamName, "#5");
 585                         }
 586                 }
 587
 588                 [Test]
 589                 public void SecureStringToCoTaskMemUnicode ()
 590                 {
 591                         try {
 592                                 SecureString ss = GetSecureString ();
 593                                 IntPtr p = Marshal.SecureStringToCoTaskMemUnicode (ss);
 594
 595                                 char[] decrypted = new char[ss.Length];
 596                                 Marshal.Copy (p, decrypted, 0, decrypted.Length);
 597                                 Assert.AreEqual (PlainText, decrypted, "Decrypted");
 598
 599                                 Marshal.ZeroFreeCoTaskMemUnicode (p);
 600                         } catch (NotSupportedException) {
 601                                 Assert.Ignore (NotSupported);
 602                         }
 603                 }
 604
 605                 [Test]
 606                 public void SecureStringToGlobalAllocAnsi_Null ()
 607                 {
 608                         try {
 609                                 Marshal.SecureStringToGlobalAllocAnsi (null);
 610                                 Assert.Fail ("#1");
 611                         } catch (ArgumentNullException ex) {
 612                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 613                                 Assert.IsNull (ex.InnerException, "#3");
 614                                 Assert.IsNotNull (ex.Message, "#4");
 615                                 Assert.AreEqual ("s", ex.ParamName, "#5");
 616                         }
 617                 }
 618
 619                 [Test]
 620                 public void SecureStringToGlobalAllocAnsi ()
 621                 {
 622                         try {
 623                                 SecureString ss = GetSecureString ();
 624                                 IntPtr p = Marshal.SecureStringToGlobalAllocAnsi (ss);
 625
 626                                 byte[] decrypted = new byte[ss.Length];
 627                                 Marshal.Copy (p, decrypted, 0, decrypted.Length);
 628                                 Assert.AreEqual (AsciiPlainText, decrypted, "Decrypted");
 629
 630                                 Marshal.ZeroFreeGlobalAllocAnsi (p);
 631                         } catch (NotSupportedException) {
 632                                 Assert.Ignore (NotSupported);
 633                         }
 634                 }
 635
 636                 [Test]
 637                 public void SecureStringToGlobalAllocUnicode_Null ()
 638                 {
 639                         try {
 640                                 Marshal.SecureStringToGlobalAllocUnicode (null);
 641                                 Assert.Fail ("#1");
 642                         } catch (ArgumentNullException ex) {
 643                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 644                                 Assert.IsNull (ex.InnerException, "#3");
 645                                 Assert.IsNotNull (ex.Message, "#4");
 646                                 Assert.AreEqual ("s", ex.ParamName, "#5");
 647                         }
 648                 }
 649
 650                 [Test]
 651                 public void SecureStringToGlobalAllocUnicode ()
 652                 {
 653                         try {
 654                                 SecureString ss = GetSecureString ();
 655                                 IntPtr p = Marshal.SecureStringToGlobalAllocUnicode (ss);
 656
 657                                 char[] decrypted = new char[ss.Length];
 658                                 Marshal.Copy (p, decrypted, 0, decrypted.Length);
 659                                 Assert.AreEqual (PlainText, decrypted, "Decrypted");
 660
 661                                 Marshal.ZeroFreeGlobalAllocUnicode (p);
 662                         } catch (NotSupportedException) {
 663                                 Assert.Ignore (NotSupported);
 664                         }
 665                 }
 666 #endif
 667
 668 #if !NET_2_1
 669                 [Test]
 670                 public void TestGetComSlotForMethodInfo ()
 671                 {
 672                         Assert.AreEqual (7, Marshal.GetComSlotForMethodInfo(typeof(ITestDefault).GetMethod("DoNothing")));
 673                         Assert.AreEqual (7, Marshal.GetComSlotForMethodInfo(typeof(ITestDual).GetMethod("DoNothing")));
 674                         Assert.AreEqual (7, Marshal.GetComSlotForMethodInfo (typeof(ITestDefault).GetMethod ("DoNothing")));
 675                         Assert.AreEqual (3, Marshal.GetComSlotForMethodInfo (typeof(ITestUnknown).GetMethod ("DoNothing")));
 676
 677                         for (int i = 0; i < 10; i++)
 678                                 Assert.AreEqual (7+i, Marshal.GetComSlotForMethodInfo(typeof(ITestInterface).GetMethod ("Method"+i.ToString())));
 679                 }
 680
 681                 [Test]
 682                 public void TestGetComSlotForMethod_Method_Null ()
 683                 {
 684                         try {
 685                                 Marshal.GetComSlotForMethodInfo (null);
 686                                 Assert.Fail ("#1");
 687                         } catch (ArgumentNullException ex) {
 688                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 689                                 Assert.IsNull (ex.InnerException, "#3");
 690                                 Assert.IsNotNull (ex.Message, "#4");
 691                                 Assert.AreEqual ("m", ex.ParamName, "#5");
 692                         }
 693                 }
 694
 695                 [Test]
 696                 public void TestGetComSlotForMethodInfo_Method_NotOnInterface ()
 697                 {
 698                         MethodInfo m = typeof(TestCoClass).GetMethod ("DoNothing");
 699                         try {
 700                                 Marshal.GetComSlotForMethodInfo (m);
 701                                 Assert.Fail ("#1");
 702                         } catch (ArgumentException ex) {
 703                                 // The MemberInfo must be an interface method
 704                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
 705                                 Assert.IsNull (ex.InnerException, "#3");
 706                                 Assert.IsNotNull (ex.Message, "#4");
 707                                 Assert.AreEqual ("m", ex.ParamName, "#5");
 708                         }
 709                 }
 710 #endif
 711                 [Test]
 712                 public void TestPtrToStringAuto ()
 713                 {
 714                         string input = Guid.NewGuid ().ToString ();
 715                         string output;
 716                         string output2;
 717                         int len = 4;
 718                         IntPtr ptr;
 719
 720                         if (Environment.OSVersion.Platform == PlatformID.Win32NT) {
 721                                 // Auto -> Uni
 722                                 ptr = Marshal.StringToHGlobalAuto (input);
 723                                 output = Marshal.PtrToStringUni (ptr);
 724                                 output2 = Marshal.PtrToStringUni (ptr, len);
 725                         } else {
 726                                 // Auto -> Ansi
 727                                 ptr = Marshal.StringToHGlobalAuto (input);
 728                                 output = Marshal.PtrToStringAnsi (ptr);
 729                                 output2 = Marshal.PtrToStringAnsi (ptr, len);
 730                         }
 731
 732                         try {
 733                                 Assert.AreEqual (input, output, "#1");
 734                                 Assert.AreEqual (input.Substring (0, len), output2, "#2");
 735                         } finally {
 736                                 Marshal.FreeHGlobal (ptr);
 737                         }
 738                 }
 739 #if !MOBILE
 740                 [Test]
 741                 public void TestGenerateProgIdForType()
 742                 {
 743                         string output;
 744
 745                         output = Marshal.GenerateProgIdForType(typeof(TestCoClass));
 746                         Assert.AreEqual ("MonoTests.System.Runtime.InteropServices.TestCoClass", output, "#1");
 747
 748                         output = Marshal.GenerateProgIdForType(typeof(TestCoClassWithProgId));
 749                         Assert.AreEqual ("CoClassWithProgId", output, "#2");
 750                 }
 751 #endif
 752                 [Test]
 753                 public void TestGlobalAlloc ()
 754                 {
 755                         IntPtr mem = Marshal.AllocHGlobal (100);
 756                         mem = Marshal.ReAllocHGlobal (mem, (IntPtr) 1000000);
 757                         Marshal.FreeHGlobal (mem);
 758                 }
 759
 760                 [Test]
 761                 public void FreeHGlobal ()
 762                 {
 763                         // clear user doubts on assistly #6749
 764                         for (int i = 0; i < 1024; i++) {
 765                                 IntPtr p = Marshal.AllocHGlobal (1024 * 1024);
 766                                 Assert.AreNotEqual (IntPtr.Zero, p, i.ToString ());
 767                                 Marshal.FreeHGlobal (p);
 768                         }
 769                 }
 770
 771                 [StructLayout (LayoutKind.Sequential)]
 772                 public struct SimpleStruct2 {
 773                         public int a;
 774                         public int b;
 775                 }
 776
 777                 [Test]
 778                 public void PtrToStructureNull ()
 779                 {
 780                         Assert.IsNull (Marshal.PtrToStructure (IntPtr.Zero, typeof (SimpleStruct2)));
 781                 }
 782
 783 #if NET_2_0
 784                 [Test]
 785                 public void TestGetExceptionForHR ()
 786                 {
 787                         const int E_OUTOFMEMORY = unchecked ((int) 0x8007000E);
 788                         const int E_INVALIDARG = unchecked ((int) 0X80070057);
 789
 790                         Exception ex = Marshal.GetExceptionForHR (E_OUTOFMEMORY);
 791                         Assert.AreEqual (typeof (OutOfMemoryException), ex.GetType (), "E_OUTOFMEMORY");
 792
 793                         ex = Marshal.GetExceptionForHR (E_INVALIDARG);
 794                         Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "E_INVALIDARG");
 795                 }
 796 #endif
 797                 bool RunningOnUnix {
 798                         get {
 799                                 int p = (int) Environment.OSVersion.Platform;
 800                                 return ((p == 4) || (p == 128) || (p == 6));
 801                         }
 802                 }
 803
 804                 [DllImport ("kernel32.dll", SetLastError = true)]
 805                 [PreserveSig]
 806                 static extern uint GetModuleFileName (
 807                         [In]
 808                         IntPtr hModule,
 809                         [Out]
 810                         StringBuilder lpFilename,
 811                         [In]
 812                         [MarshalAs (UnmanagedType.U4)]
 813                         int nSize
 814                 );
 815         }
 816 #if !NET_2_1
 817         [ComImport()]
 818         [Guid("AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA")]
 819         interface ITestDefault
 820         {
 821                 void DoNothing ();
 822         }
 823
 824         [ComImport()]
 825         [Guid("AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA")]
 826         [InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
 827         interface ITestDispatch
 828         {
 829                 void DoNothing ();
 830         }
 831
 832         [ComImport()]
 833         [Guid("AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA")]
 834         [InterfaceType(ComInterfaceType.InterfaceIsDual)]
 835         interface ITestDual
 836         {
 837                 void DoNothing ();
 838         }
 839
 840         [ComImport()]
 841         [Guid("AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA")]
 842         [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
 843         interface ITestUnknown
 844         {
 845                 void DoNothing ();
 846         }
 847
 848         [ComImport()]
 849         [Guid("AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA")]
 850         interface ITestInterface
 851         {
 852                 void Method0 ();
 853                 void Method1 ();
 854                 void Method2 ();
 855                 void Method3 ();
 856                 void Method4 ();
 857                 void Method5 ();
 858                 void Method6 ();
 859                 void Method7 ();
 860                 void Method8 ();
 861                 void Method9 ();
 862         }
 863
 864         public class TestCoClass : ITestDispatch
 865         {
 866                 public void DoNothing ()
 867                 {
 868                 }
 869         }
 870
 871         [ProgId("CoClassWithProgId")]
 872         public class TestCoClassWithProgId : ITestDispatch
 873         {
 874                 public void DoNothing ()
 875                 {
 876                 }
 877         }
 878 #endif
 879 }