mcs/class/System/Test/Microsoft.CSharp/CodeGeneratorFromExpressionTest.cs

   1 //
   2 // Microsoft.CSharp.* Test Cases
   3 //
   4 // Authors:
   5 //      Erik LeBel (eriklebel@yahoo.ca)
   6 //
   7 // (c) 2003 Erik LeBel
   8 //
   9 using System;
  10 using System.CodeDom;
  11 using System.CodeDom.Compiler;
  12 using System.Globalization;
  13 using System.IO;
  14 using System.Text;
  15
  16 using Microsoft.CSharp;
  17
  18 using NUnit.Framework;
  19
  20 namespace MonoTests.Microsoft.CSharp
  21 {
  22         /// <summary>
  23         /// Test ICodeGenerator's GenerateCodeFromExpression, along with a
  24         /// minimal set CodeDom components.
  25         /// </summary>
  26         [TestFixture]
  27         public class CodeGeneratorFromExpressionTest
  28         {
  29                 private CSharpCodeProvider provider;
  30                 private ICodeGenerator generator;
  31                 private CodeGeneratorOptions options;
  32
  33                 [SetUp]
  34                 public void SetUp ()
  35                 {
  36                         provider = new CSharpCodeProvider ();
  37                         generator = provider.CreateGenerator ();
  38                         options = new CodeGeneratorOptions ();
  39                 }
  40
  41                 [Test]
  42                 public void DefaultExpressionTest ()
  43                 {
  44                         using (StringWriter sw = new StringWriter ()) {
  45                                 try {
  46                                         Generate (new CodeExpression (), sw);
  47                                         Assert.Fail ("#1");
  48                                 } catch (ArgumentException ex) {
  49                                         // Element type System.CodeDom.CodeExpression is not supported
  50                                         Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
  51                                         Assert.IsNull (ex.InnerException, "#3");
  52                                         Assert.IsNotNull (ex.Message, "#4");
  53                                         Assert.AreEqual ("e", ex.ParamName, "#5");
  54                                 }
  55                         }
  56                 }
  57
  58                 [Test]
  59                 public void NullExpressionTest ()
  60                 {
  61                         using (StringWriter sw = new StringWriter ()) {
  62                                 try {
  63                                         Generate (null, sw);
  64                                         Assert.Fail ("#1");
  65                                 } catch (ArgumentNullException ex) {
  66                                         Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
  67                                         Assert.IsNull (ex.InnerException, "#3");
  68                                         Assert.IsNotNull (ex.Message, "#4");
  69                                         Assert.AreEqual ("e", ex.ParamName, "#5");
  70                                 }
  71                         }
  72                 }
  73
  74                 [Test]
  75                 public void TypeReferenceExpressionTest ()
  76                 {
  77                         StringBuilder sb = new StringBuilder ();
  78
  79                         using (StringWriter sw = new StringWriter (sb)) {
  80                                 Assert.AreEqual ("bool", Generate (new CodeTypeReferenceExpression (typeof (bool)), sw), "#1");
  81                                 sb.Length = 0;
  82                                 Assert.AreEqual ("char", Generate (new CodeTypeReferenceExpression (typeof (char)), sw), "#2");
  83                                 sb.Length = 0;
  84                                 Assert.AreEqual (typeof(DateTime).FullName, Generate (new CodeTypeReferenceExpression (typeof (DateTime)), sw), "#3");
  85                                 sb.Length = 0;
  86                                 Assert.AreEqual ("short", Generate (new CodeTypeReferenceExpression (typeof (short)), sw), "#4");
  87                                 sb.Length = 0;
  88                                 Assert.AreEqual ("int", Generate (new CodeTypeReferenceExpression (typeof (int)), sw), "#5");
  89                                 sb.Length = 0;
  90                                 Assert.AreEqual ("long", Generate (new CodeTypeReferenceExpression (typeof (long)), sw), "#6");
  91                                 sb.Length = 0;
  92                                 Assert.AreEqual ("object", Generate (new CodeTypeReferenceExpression (typeof (object)), sw), "#7");
  93                                 sb.Length = 0;
  94                                 Assert.AreEqual ("void", Generate (new CodeTypeReferenceExpression (typeof (void)), sw), "#8");
  95                                 sb.Length = 0;
  96                                 Assert.AreEqual ("void", Generate (new CodeTypeReferenceExpression ((string) null), sw), "#9");
  97                                 sb.Length = 0;
  98                                 Assert.AreEqual ("void", Generate (new CodeTypeReferenceExpression (""), sw), "#10");
  99                                 sb.Length = 0;
 100                                 Assert.AreEqual ("byte", Generate (new CodeTypeReferenceExpression (typeof (byte)), sw), "#11");
 101                                 sb.Length = 0;
 102                                 Assert.AreEqual ("decimal", Generate (new CodeTypeReferenceExpression (typeof (decimal)), sw), "#12");
 103                                 sb.Length = 0;
 104                                 Assert.AreEqual ("double", Generate (new CodeTypeReferenceExpression (typeof (double)), sw), "#13");
 105                                 sb.Length = 0;
 106                                 Assert.AreEqual ("sbyte", Generate (new CodeTypeReferenceExpression (typeof (sbyte)), sw), "#14");
 107                                 sb.Length = 0;
 108                                 Assert.AreEqual ("ushort", Generate (new CodeTypeReferenceExpression (typeof (ushort)), sw), "#15");
 109                                 sb.Length = 0;
 110                                 Assert.AreEqual ("uint", Generate (new CodeTypeReferenceExpression (typeof (uint)), sw), "#16");
 111                                 sb.Length = 0;
 112                                 Assert.AreEqual ("ulong", Generate (new CodeTypeReferenceExpression (typeof (ulong)), sw), "#17");
 113                                 sb.Length = 0;
 114                                 Assert.AreEqual ("float", Generate (new CodeTypeReferenceExpression (typeof (float)), sw), "#18");
 115                                 sb.Length = 0;
 116                                 sw.Close ();
 117                         }
 118                 }
 119
 120                 [Test]
 121                 public void PrimitiveExpressionTest ()
 122                 {
 123                         StringBuilder sb = new StringBuilder ();
 124
 125                         using (StringWriter sw = new StringWriter (sb)) {
 126                                 Assert.AreEqual ("null", Generate (new CodePrimitiveExpression (null), sw), "#1");
 127                                 sb.Length = 0;
 128                                 Assert.AreEqual ("\"AB\\\"C\"", Generate (new CodePrimitiveExpression ("AB\"C"), sw), "#2");
 129                                 sb.Length = 0;
 130                                 Assert.AreEqual ("5", Generate (new CodePrimitiveExpression ((byte) 5), sw), "#4");
 131                                 sb.Length = 0;
 132                                 Assert.AreEqual ("20", Generate (new CodePrimitiveExpression ((short) 20), sw), "#5");
 133                                 sb.Length = 0;
 134                                 Assert.AreEqual ("243", Generate (new CodePrimitiveExpression (243), sw), "#6");
 135                                 sb.Length = 0;
 136                                 Assert.AreEqual ("434343", Generate (new CodePrimitiveExpression ((long) 434343), sw), "#7");
 137                                 sb.Length = 0;
 138                                 Assert.AreEqual ("6.445F", Generate (new CodePrimitiveExpression ((float) 6.445), sw), "#8");
 139                                 sb.Length = 0;
 140                                 Assert.AreEqual ("5.76", Generate (new CodePrimitiveExpression ((double) 5.76), sw), "#9");
 141                                 sb.Length = 0;
 142                                 Assert.AreEqual ("7.667m", Generate (new CodePrimitiveExpression ((decimal) 7.667), sw), "#10");
 143                                 sb.Length = 0;
 144                                 Assert.AreEqual ("true", Generate (new CodePrimitiveExpression (true), sw), "#11");
 145                                 sb.Length = 0;
 146                                 Assert.AreEqual ("false", Generate (new CodePrimitiveExpression (false), sw), "#12");
 147                                 sw.Close ();
 148                         }
 149                 }
 150
 151                 [Test]
 152                 public void PrimitiveExpressionTest_Char ()
 153                 {
 154                         StringBuilder sb = new StringBuilder ();
 155
 156                         using (StringWriter sw = new StringWriter (sb)) {
 157                                 Assert.AreEqual ("'\\0'", Generate (new CodePrimitiveExpression ('\0'), sw), "#0");
 158                                 sb.Length = 0;
 159                                 Assert.AreEqual ("'\x01'", Generate (new CodePrimitiveExpression ('\x01'), sw), "#1");
 160                                 sb.Length = 0;
 161                                 Assert.AreEqual ("'\x02'", Generate (new CodePrimitiveExpression ('\x02'), sw), "#2");
 162                                 sb.Length = 0;
 163                                 Assert.AreEqual ("'\x03'", Generate (new CodePrimitiveExpression ('\x03'), sw), "#3");
 164                                 sb.Length = 0;
 165                                 Assert.AreEqual ("'\x04'", Generate (new CodePrimitiveExpression ('\x04'), sw), "#4");
 166                                 sb.Length = 0;
 167                                 Assert.AreEqual ("'\x05'", Generate (new CodePrimitiveExpression ('\x05'), sw), "#5");
 168                                 sb.Length = 0;
 169                                 Assert.AreEqual ("'\x06'", Generate (new CodePrimitiveExpression ('\x06'), sw), "#6");
 170                                 sb.Length = 0;
 171                                 Assert.AreEqual ("'\a'", Generate (new CodePrimitiveExpression ('\a'), sw), "#7");
 172                                 sb.Length = 0;
 173                                 Assert.AreEqual ("'\b'", Generate (new CodePrimitiveExpression ('\b'), sw), "#8");
 174                                 sb.Length = 0;
 175                                 Assert.AreEqual ("'\\t'", Generate (new CodePrimitiveExpression ('\t'), sw), "#9");
 176                                 sb.Length = 0;
 177                                 Assert.AreEqual ("'\\n'", Generate (new CodePrimitiveExpression ('\n'), sw), "#10");
 178                                 sb.Length = 0;
 179                                 Assert.AreEqual ("'\v'", Generate (new CodePrimitiveExpression ('\v'), sw), "#11");
 180                                 sb.Length = 0;
 181                                 Assert.AreEqual ("'\f'", Generate (new CodePrimitiveExpression ('\f'), sw), "#12");
 182                                 sb.Length = 0;
 183                                 Assert.AreEqual ("'\\r'", Generate (new CodePrimitiveExpression ('\r'), sw), "#13");
 184                                 sb.Length = 0;
 185                                 Assert.AreEqual ("'\x0E'", Generate (new CodePrimitiveExpression ('\x0E'), sw), "#14");
 186                                 sb.Length = 0;
 187                                 Assert.AreEqual ("'\x0F'", Generate (new CodePrimitiveExpression ('\x0F'), sw), "#15");
 188                                 sb.Length = 0;
 189                                 Assert.AreEqual ("'\x10'", Generate (new CodePrimitiveExpression ('\x10'), sw), "#16");
 190                                 sb.Length = 0;
 191                                 Assert.AreEqual ("'\x11'", Generate (new CodePrimitiveExpression ('\x11'), sw), "#17");
 192                                 sb.Length = 0;
 193                                 Assert.AreEqual ("'\x12'", Generate (new CodePrimitiveExpression ('\x12'), sw), "#18");
 194                                 sb.Length = 0;
 195                                 Assert.AreEqual ("'\x13'", Generate (new CodePrimitiveExpression ('\x13'), sw), "#19");
 196                                 sb.Length = 0;
 197                                 Assert.AreEqual ("'\x14'", Generate (new CodePrimitiveExpression ('\x14'), sw), "#20");
 198                                 sb.Length = 0;
 199                                 Assert.AreEqual ("'\x15'", Generate (new CodePrimitiveExpression ('\x15'), sw), "#21");
 200                                 sb.Length = 0;
 201                                 Assert.AreEqual ("'\x16'", Generate (new CodePrimitiveExpression ('\x16'), sw), "#22");
 202                                 sb.Length = 0;
 203                                 Assert.AreEqual ("'\x17'", Generate (new CodePrimitiveExpression ('\x17'), sw), "#23");
 204                                 sb.Length = 0;
 205                                 Assert.AreEqual ("'\x18'", Generate (new CodePrimitiveExpression ('\x18'), sw), "#24");
 206                                 sb.Length = 0;
 207                                 Assert.AreEqual ("'\x19'", Generate (new CodePrimitiveExpression ('\x19'), sw), "#25");
 208                                 sb.Length = 0;
 209                                 Assert.AreEqual ("'\x1A'", Generate (new CodePrimitiveExpression ('\x1A'), sw), "#26");
 210                                 sb.Length = 0;
 211                                 Assert.AreEqual ("'\x1B'", Generate (new CodePrimitiveExpression ('\x1B'), sw), "#27");
 212                                 sb.Length = 0;
 213                                 Assert.AreEqual ("'\x1C'", Generate (new CodePrimitiveExpression ('\x1C'), sw), "#28");
 214                                 sb.Length = 0;
 215                                 Assert.AreEqual ("'\x1D'", Generate (new CodePrimitiveExpression ('\x1D'), sw), "#29");
 216                                 sb.Length = 0;
 217                                 Assert.AreEqual ("'\x1E'", Generate (new CodePrimitiveExpression ('\x1E'), sw), "#30");
 218                                 sb.Length = 0;
 219                                 Assert.AreEqual ("'\x1F'", Generate (new CodePrimitiveExpression ('\x1F'), sw), "#31");
 220                                 sb.Length = 0;
 221                                 Assert.AreEqual ("'\x20'", Generate (new CodePrimitiveExpression ('\x20'), sw), "#32");
 222                                 sb.Length = 0;
 223                                 Assert.AreEqual ("'\x21'", Generate (new CodePrimitiveExpression ('\x21'), sw), "#33");
 224                                 sb.Length = 0;
 225                                 Assert.AreEqual ("'\\\"'", Generate (new CodePrimitiveExpression ('"'), sw), "#34");
 226                                 sb.Length = 0;
 227                                 Assert.AreEqual ("'\x23'", Generate (new CodePrimitiveExpression ('\x23'), sw), "#35");
 228                                 sb.Length = 0;
 229                                 Assert.AreEqual ("'\x24'", Generate (new CodePrimitiveExpression ('\x24'), sw), "#36");
 230                                 sb.Length = 0;
 231                                 Assert.AreEqual ("'\x25'", Generate (new CodePrimitiveExpression ('\x25'), sw), "#37");
 232                                 sb.Length = 0;
 233                                 Assert.AreEqual ("'\x26'", Generate (new CodePrimitiveExpression ('\x26'), sw), "#38");
 234                                 sb.Length = 0;
 235                                 Assert.AreEqual ("'\\''", Generate (new CodePrimitiveExpression ('\''), sw), "#39");
 236                                 sb.Length = 0;
 237                                 Assert.AreEqual ("'\\u2028'", Generate (new CodePrimitiveExpression ('\u2028'), sw), "#40");
 238                                 sb.Length = 0;
 239                                 Assert.AreEqual ("'\\u2029'", Generate (new CodePrimitiveExpression ('\u2029'), sw), "#41");
 240                                 sb.Length = 0;
 241                                 Assert.AreEqual ("'\u2030'", Generate (new CodePrimitiveExpression ('\u2030'), sw), "#42");
 242                                 sw.Close ();
 243                         }
 244                 }
 245
 246                 [Test]
 247 #if ONLY_1_1
 248                 [ExpectedException (typeof (ArgumentException))]
 249 #endif
 250                 public void PrimitiveExpressionTest_SByte ()
 251                 {
 252                         StringBuilder sb = new StringBuilder ();
 253
 254                         using (StringWriter sw = new StringWriter (sb)) {
 255                                 Assert.AreEqual ("5", Generate (new CodePrimitiveExpression ((sbyte) 5), sw));
 256                                 sw.Close ();
 257                         }
 258                 }
 259
 260                 [Test]
 261 #if ONLY_1_1
 262                 [ExpectedException (typeof (ArgumentException))]
 263 #endif
 264                 public void PrimitiveExpressionTest_UInt16 ()
 265                 {
 266                         StringBuilder sb = new StringBuilder ();
 267
 268                         using (StringWriter sw = new StringWriter (sb)) {
 269                                 Assert.AreEqual ("5", Generate (new CodePrimitiveExpression ((ushort) 5), sw));
 270                                 sw.Close ();
 271                         }
 272                 }
 273
 274                 [Test]
 275 #if ONLY_1_1
 276                 [ExpectedException (typeof (ArgumentException))]
 277 #endif
 278                 public void PrimitiveExpressionTest_UInt32 ()
 279                 {
 280                         StringBuilder sb = new StringBuilder ();
 281
 282                         using (StringWriter sw = new StringWriter (sb)) {
 283                                 Assert.AreEqual ("5u", Generate (new CodePrimitiveExpression ((uint) 5), sw));
 284                                 sw.Close ();
 285                         }
 286                 }
 287
 288                 [Test]
 289 #if ONLY_1_1
 290                 [ExpectedException (typeof (ArgumentException))]
 291 #endif
 292                 public void PrimitiveExpressionTest_UInt64 ()
 293                 {
 294                         StringBuilder sb = new StringBuilder ();
 295
 296                         using (StringWriter sw = new StringWriter (sb)) {
 297                                 Assert.AreEqual ("5ul", Generate (new CodePrimitiveExpression ((ulong) 5), sw));
 298                                 sw.Close ();
 299                         }
 300                 }
 301
 302                 [Test]
 303                 public void ParameterDeclarationExpressionTest ()
 304                 {
 305                         CodeParameterDeclarationExpression cpde = null;
 306
 307                         StringBuilder sb = new StringBuilder ();
 308
 309                         using (StringWriter sw = new StringWriter (sb)) {
 310                                 cpde = new CodeParameterDeclarationExpression ();
 311                                 Assert.AreEqual ("void ", Generate (cpde, sw), "#1");
 312                                 sb.Length = 0;
 313
 314                                 cpde = new CodeParameterDeclarationExpression ((string) null,
 315                                         (string) null);
 316                                 Assert.AreEqual ("void ", Generate (cpde, sw), "#2");
 317                                 sb.Length = 0;
 318
 319                                 cpde = new CodeParameterDeclarationExpression ("A", (string) null);
 320                                 Assert.AreEqual ("A ", Generate (cpde, sw), "#4");
 321                                 sb.Length = 0;
 322
 323                                 cpde = new CodeParameterDeclarationExpression ((string) null, "B");
 324                                 Assert.AreEqual ("void B", Generate (cpde, sw), "#4");
 325                                 sb.Length = 0;
 326
 327                                 cpde = new CodeParameterDeclarationExpression ("A", "B");
 328                                 Assert.AreEqual ("A B", Generate (cpde, sw), "#5");
 329                                 sb.Length = 0;
 330
 331                                 cpde.Direction = FieldDirection.Out;
 332                                 Assert.AreEqual ("out A B", Generate (cpde, sw), "#6");
 333                                 sb.Length = 0;
 334
 335                                 cpde.Direction = FieldDirection.Ref;
 336                                 Assert.AreEqual ("ref A B", Generate (cpde, sw), "#7");
 337                                 sb.Length = 0;
 338                         }
 339                 }
 340
 341                 [Test]
 342                 public void ArrayCreateExpressionTest ()
 343                 {
 344                         StringBuilder sb;
 345
 346                         sb = new StringBuilder ();
 347                         using (StringWriter sw = new StringWriter (sb)) {
 348                                 Assert.AreEqual (
 349                                         string.Format (CultureInfo.InvariantCulture,
 350                                                 "new int[] {{{0}        5}}",
 351                                                 Environment.NewLine),
 352                                         Generate (new CodeArrayCreateExpression (
 353                                                         typeof (int),
 354                                                         new CodeExpression [] {
 355                                                                 new CodePrimitiveExpression (5)
 356                                                                 })
 357                                                 , sw), "#1");
 358                         }
 359
 360                         sb = new StringBuilder ();
 361                         using (StringWriter sw = new StringWriter (sb)) {
 362                                 Assert.AreEqual ("new int[5]",
 363                                         Generate (new CodeArrayCreateExpression (
 364                                                         typeof (int),
 365                                                         new CodePrimitiveExpression (5))
 366                                                 , sw), "#2");
 367                         }
 368
 369                         sb = new StringBuilder ();
 370                         using (StringWriter sw = new StringWriter (sb)) {
 371                                 Assert.AreEqual (
 372                                         string.Format (CultureInfo.InvariantCulture,
 373                                                 "new string[] {{{0}" +
 374                                                 "        \"a\",{0}" +
 375                                                 "        \"b\",{0}" +
 376                                                 "        \"c\"}}",
 377                                                 Environment.NewLine),
 378                                         Generate (new CodeArrayCreateExpression (
 379                                                         typeof (string),
 380                                                         new CodeExpression [] {
 381                                                                 new CodePrimitiveExpression ("a"),
 382                                                                 new CodePrimitiveExpression ("b"),
 383                                                                 new CodePrimitiveExpression ("c"),
 384                                                                 })
 385                                                 , sw));
 386                                 sw.Close ();
 387                         }
 388                 }
 389
 390                 [Test]
 391                 public void EscapedIdentifierTest ()
 392                 {
 393                         StringBuilder sb;
 394                         string code;
 395
 396                         sb = new StringBuilder ();
 397                         using (StringWriter sw = new StringWriter (sb)) {
 398                                 code = Generate (new CodeVariableReferenceExpression ("using"), sw);
 399                                 Assert.AreEqual ("@using", code, "#1");
 400                                 sw.Close ();
 401                         }
 402
 403                         sb = new StringBuilder ();
 404                         using (StringWriter sw = new StringWriter (sb)) {
 405                                 code = Generate (new CodeTypeReferenceExpression ("using"), sw);
 406                                 Assert.AreEqual ("@using", code, "#2");
 407                                 sw.Close ();
 408                         }
 409
 410                         sb = new StringBuilder ();
 411                         using (StringWriter sw = new StringWriter (sb)) {
 412                                 code = Generate (new CodePropertyReferenceExpression (null, "using"), sw);
 413                                 Assert.AreEqual ("@using", code, "#3");
 414                                 sw.Close ();
 415                         }
 416
 417                         sb = new StringBuilder ();
 418                         using (StringWriter sw = new StringWriter (sb)) {
 419                                 code = Generate (new CodeMethodReferenceExpression (null, "using"), sw);
 420                                 Assert.AreEqual ("@using", code, "#4");
 421                                 sw.Close ();
 422                         }
 423
 424                         sb = new StringBuilder ();
 425                         using (StringWriter sw = new StringWriter (sb)) {
 426                                 code = Generate (new CodeFieldReferenceExpression (null, "using"), sw);
 427                                 Assert.AreEqual ("@using", code, "#5");
 428                                 sw.Close ();
 429                         }
 430
 431                         sb = new StringBuilder ();
 432                         using (StringWriter sw = new StringWriter (sb)) {
 433                                 code = Generate (new CodeEventReferenceExpression (null, "using"), sw);
 434                                 Assert.AreEqual ("@using", code, "#6");
 435                                 sw.Close ();
 436                         }
 437                 }
 438
 439                 [Test]
 440                 public void EventReferenceTest ()
 441                 {
 442                         StringBuilder sb;
 443                         string code;
 444
 445                         sb = new StringBuilder ();
 446                         using (StringWriter sw = new StringWriter (sb)) {
 447                                 code = Generate (new CodeEventReferenceExpression (null, null), sw);
 448                                 Assert.AreEqual (string.Empty, code, "#1");
 449                         }
 450
 451                         sb = new StringBuilder ();
 452                         using (StringWriter sw = new StringWriter (sb)) {
 453                                 code = Generate (new CodeEventReferenceExpression (null, "abc"), sw);
 454                                 Assert.AreEqual ("abc", code, "#2");
 455                         }
 456
 457                         sb = new StringBuilder ();
 458                         using (StringWriter sw = new StringWriter (sb)) {
 459                                 code = Generate (new CodeEventReferenceExpression (new CodeThisReferenceExpression (), null), sw);
 460                                 Assert.AreEqual ("this.", code, "#3");
 461                         }
 462
 463                         sb = new StringBuilder ();
 464                         using (StringWriter sw = new StringWriter (sb)) {
 465                                 code = Generate (new CodeEventReferenceExpression (new CodeThisReferenceExpression (), "abc"), sw);
 466                                 Assert.AreEqual ("this.abc", code, "#4");
 467                         }
 468
 469                         sb = new StringBuilder ();
 470                         using (StringWriter sw = new StringWriter (sb)) {
 471                                 code = Generate (new CodeEventReferenceExpression (new CodePrimitiveExpression ("primitive"), null), sw);
 472                                 Assert.AreEqual ("\"primitive\".", code, "#5");
 473                         }
 474
 475                         sb = new StringBuilder ();
 476                         using (StringWriter sw = new StringWriter (sb)) {
 477                                 code = Generate (new CodeEventReferenceExpression (new CodePrimitiveExpression ("primitive"), "abc"), sw);
 478                                 Assert.AreEqual ("\"primitive\".abc", code, "#6");
 479                         }
 480                 }
 481
 482                 [Test]
 483                 public void DefaultValueExpressionTest ()
 484                 {
 485                         StringBuilder sb = new StringBuilder ();
 486
 487                         using (StringWriter sw = new StringWriter (sb)) {
 488                                 Assert.AreEqual ("default(string)", Generate (new CodeDefaultValueExpression (new CodeTypeReference (typeof(string))), sw), "#0");
 489                                 sb.Length = 0;
 490                                 sw.Close ();
 491                         }
 492                 }
 493
 494                 [Test]
 495                 public void DelegateInvokeTest ()
 496                 {
 497                         StringBuilder sb;
 498                         string code;
 499
 500                         sb = new StringBuilder ();
 501                         using (StringWriter sw = new StringWriter (sb)) {
 502                                 code = Generate (new CodeDelegateInvokeExpression (null, new CodePrimitiveExpression ("abc")), sw);
 503                                 Assert.AreEqual ("(\"abc\")", code, "#1");
 504                         }
 505
 506                         sb = new StringBuilder ();
 507                         using (StringWriter sw = new StringWriter (sb)) {
 508                                 code = Generate (new CodeDelegateInvokeExpression (new CodeThisReferenceExpression (), new CodePrimitiveExpression ("abc")), sw);
 509                                 Assert.AreEqual ("this(\"abc\")", code, "#2");
 510                         }
 511
 512                         sb = new StringBuilder ();
 513                         using (StringWriter sw = new StringWriter (sb)) {
 514                                 code = Generate (new CodeDelegateInvokeExpression (new CodePrimitiveExpression ("primitive"), new CodePrimitiveExpression ("abc")), sw);
 515                                 Assert.AreEqual ("\"primitive\"(\"abc\")", code, "#3");
 516                         }
 517
 518                         sb = new StringBuilder ();
 519                         using (StringWriter sw = new StringWriter (sb)) {
 520                                 code = Generate (new CodeDelegateInvokeExpression (new CodeEventReferenceExpression (new CodeThisReferenceExpression (), "Click"), new CodePrimitiveExpression ("abc")), sw);
 521                                 Assert.AreEqual ("this.Click(\"abc\")", code, "#4");
 522                         }
 523
 524                         sb = new StringBuilder ();
 525                         using (StringWriter sw = new StringWriter (sb)) {
 526                                 code = Generate (new CodeDelegateInvokeExpression (new CodeEventReferenceExpression (new CodeThisReferenceExpression (), null), new CodePrimitiveExpression ("abc")), sw);
 527                                 Assert.AreEqual ("this.(\"abc\")", code, "#5");
 528                         }
 529
 530                         sb = new StringBuilder ();
 531                         using (StringWriter sw = new StringWriter (sb)) {
 532                                 code = Generate (new CodeDelegateInvokeExpression (new CodeEventReferenceExpression (new CodePrimitiveExpression ("primitive"), "Click"), new CodePrimitiveExpression ("abc")), sw);
 533                                 Assert.AreEqual ("\"primitive\".Click(\"abc\")", code, "#6");
 534                         }
 535
 536                         sb = new StringBuilder ();
 537                         using (StringWriter sw = new StringWriter (sb)) {
 538                                 code = Generate (new CodeDelegateInvokeExpression (new CodeEventReferenceExpression (new CodePrimitiveExpression ("primitive"), null), new CodePrimitiveExpression ("abc")), sw);
 539                                 Assert.AreEqual ("\"primitive\".(\"abc\")", code, "#7");
 540                         }
 541
 542                         sb = new StringBuilder ();
 543                         using (StringWriter sw = new StringWriter (sb)) {
 544                                 code = Generate (new CodeDelegateInvokeExpression (), sw);
 545                                 Assert.AreEqual ("()", code, "#8");
 546                         }
 547                 }
 548
 549                 private string Generate (CodeExpression expression, StringWriter sw)
 550                 {
 551                         generator.GenerateCodeFromExpression (expression, sw, options);
 552                         return sw.ToString ();
 553                 }
 554         }
 555 }