mcs/class/System.Drawing/Test/System.Drawing/TestRectangleConverter.cs

   1 //
   2 // Tests for System.Drawing.RectangleConverter.cs
   3 //
   4 // Author:
   5 //      Ravindra (rkumar@novell.com)
   6 //
   7
   8 //
   9 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Collections;
  33 using System.ComponentModel;
  34 using System.ComponentModel.Design.Serialization;
  35 using System.Drawing;
  36 using System.Globalization;
  37 using System.Security.Permissions;
  38 using System.Threading;
  39
  40 using NUnit.Framework;
  41
  42 namespace MonoTests.System.Drawing
  43 {
  44         [TestFixture]
  45         [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
  46         public class RectangleConverterTest
  47         {
  48                 Rectangle rect;
  49                 Rectangle rectneg;
  50                 RectangleConverter rconv;
  51                 String rectStrInvariant;
  52                 String rectnegStrInvariant;
  53
  54                 [SetUp]
  55                 public void SetUp ()
  56                 {
  57                         rect = new Rectangle (10, 10, 20, 30);
  58                         rectStrInvariant = rect.X + CultureInfo.InvariantCulture.TextInfo.ListSeparator + " " +
  59                         rect.Y + CultureInfo.InvariantCulture.TextInfo.ListSeparator + " " +
  60                         rect.Width + CultureInfo.InvariantCulture.TextInfo.ListSeparator + " " +
  61                         rect.Height;
  62
  63                         rectneg = new Rectangle (-10, -10, 20, 30);
  64                         rectnegStrInvariant = rectneg.X + CultureInfo.InvariantCulture.TextInfo.ListSeparator + " "
  65                         + rectneg.Y + CultureInfo.InvariantCulture.TextInfo.ListSeparator + " " +
  66                         rectneg.Width + CultureInfo.InvariantCulture.TextInfo.ListSeparator + " " + rectneg.Height;
  67
  68                         rconv = (RectangleConverter) TypeDescriptor.GetConverter (rect);
  69                 }
  70
  71                 [Test]
  72 #if TARGET_JVM
  73                 [NUnit.Framework.Category ("NotWorking")]
  74 #endif
  75                 public void TestCanConvertFrom ()
  76                 {
  77                         Assert.IsTrue (rconv.CanConvertFrom (typeof (String)), "CCF#1");
  78                         Assert.IsTrue (rconv.CanConvertFrom (null, typeof (String)), "CCF#2");
  79                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Rectangle)), "CCF#3");
  80                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (RectangleF)), "CCF#4");
  81                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Point)), "CCF#5");
  82                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (PointF)), "CCF#6");
  83                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Size)), "CCF#7");
  84                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (SizeF)), "CCF#8");
  85                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Object)), "CCF#9");
  86                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (int)), "CCF#10");
  87                         Assert.IsTrue (rconv.CanConvertFrom (null, typeof (InstanceDescriptor)), "CCF#11");
  88                 }
  89
  90                 [Test]
  91                 public void TestCanConvertTo ()
  92                 {
  93                         Assert.IsTrue (rconv.CanConvertTo (typeof (String)), "CCT#1");
  94                         Assert.IsTrue (rconv.CanConvertTo (null, typeof (String)), "CCT#2");
  95                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Rectangle)), "CCT#3");
  96                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (RectangleF)), "CCT#4");
  97                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Point)), "CCT#5");
  98                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (PointF)), "CCT#6");
  99                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Size)), "CCT#7");
 100                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (SizeF)), "CCT#8");
 101                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Object)), "CCT#9");
 102                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (int)), "CCT#10");
 103                 }
 104
 105                 [Test]
 106 #if TARGET_JVM
 107                 [NUnit.Framework.Category ("NotWorking")]
 108 #endif
 109                 public void TestConvertFrom ()
 110                 {
 111                         Assert.AreEqual (rect, (Rectangle) rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 112                                                                 "10, 10, 20, 30"), "CF#1");
 113                         Assert.AreEqual (rectneg, (Rectangle) rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 114                                                                 "-10, -10, 20, 30"), "CF#2");
 115
 116                         try {
 117                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 118                                                    "10, 10");
 119                                 Assert.Fail ("CF#3: must throw ArgumentException");
 120                         } catch (Exception e) {
 121                                 Assert.IsTrue (e is ArgumentException, "CF#3");
 122                         }
 123
 124                         try {
 125                                 rconv.ConvertFrom ("10");
 126                                 Assert.Fail ("CF#3a: must throw ArgumentException");
 127                         } catch (Exception e) {
 128                                 Assert.IsTrue (e is ArgumentException, "CF#3a");
 129                         }
 130
 131                         try {
 132                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 133                                                    "1, 1, 1, 1, 1");
 134                                 Assert.Fail ("CF#4: must throw ArgumentException");
 135                         } catch (Exception e) {
 136                                 Assert.IsTrue (e is ArgumentException, "CF#4");
 137                         }
 138
 139                         try {
 140                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 141                                                    "*1, 1, 1, 1");
 142                                 Assert.Fail ("CF#5: must throw Exception");
 143                         } catch (Exception ex) {
 144                                 Assert.AreEqual (typeof (Exception), ex.GetType (), "CF#5-2");
 145                                 Assert.IsNotNull (ex.InnerException, "CF#5-3");
 146                                 Assert.AreEqual (typeof (FormatException), ex.InnerException.GetType (), "CF#5-4");
 147                         }
 148
 149                         try {
 150                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 151                                                    new Rectangle (10, 10, 100, 100));
 152                                 Assert.Fail ("CF#6: must throw NotSupportedException");
 153                         } catch (Exception e) {
 154                                 Assert.IsTrue (e is NotSupportedException, "CF#6");
 155                         }
 156
 157                         try {
 158                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 159                                                    new RectangleF (10, 10, 100, 100));
 160                                 Assert.Fail ("CF#7: must throw NotSupportedException");
 161                         } catch (Exception e) {
 162                                 Assert.IsTrue (e is NotSupportedException, "CF#7");
 163                         }
 164
 165                         try {
 166                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 167                                                    new Point (10, 10));
 168                                 Assert.Fail ("CF#8: must throw NotSupportedException");
 169                         } catch (Exception e) {
 170                                 Assert.IsTrue (e is NotSupportedException, "CF#8");
 171                         }
 172
 173                         try {
 174                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 175                                                    new PointF (10, 10));
 176                                 Assert.Fail ("CF#9: must throw NotSupportedException");
 177                         } catch (Exception e) {
 178                                 Assert.IsTrue (e is NotSupportedException, "CF#9");
 179                         }
 180
 181                         try {
 182                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 183                                                    new Size (10, 10));
 184                                 Assert.Fail ("CF#10: must throw NotSupportedException");
 185                         } catch (Exception e) {
 186                                 Assert.IsTrue (e is NotSupportedException, "CF#10");
 187                         }
 188
 189                         try {
 190                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 191                                                    new SizeF (10, 10));
 192                                 Assert.Fail ("CF#11: must throw NotSupportedException");
 193                         } catch (Exception e) {
 194                                 Assert.IsTrue (e is NotSupportedException, "CF#11");
 195                         }
 196
 197                         try {
 198                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 199                                                    new Object ());
 200                                 Assert.Fail ("CF#12: must throw NotSupportedException");
 201                         } catch (Exception e) {
 202                                 Assert.IsTrue (e is NotSupportedException, "CF#12");
 203                         }
 204
 205                         try {
 206                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture, 1001);
 207                                 Assert.Fail ("CF#13: must throw NotSupportedException");
 208                         } catch (Exception e) {
 209                                 Assert.IsTrue (e is NotSupportedException, "CF#13");
 210                         }
 211                 }
 212
 213                 [Test]
 214                 public void TestConvertTo ()
 215                 {
 216                         Assert.AreEqual (rectStrInvariant, (String) rconv.ConvertTo (null,
 217                                 CultureInfo.InvariantCulture, rect, typeof (String)), "CT#1");
 218                         Assert.AreEqual (rectnegStrInvariant, (String) rconv.ConvertTo (null,
 219                                 CultureInfo.InvariantCulture, rectneg, typeof (String)), "CT#2");
 220
 221                         try {
 222                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 223                                                  rect, typeof (Rectangle));
 224                                 Assert.Fail ("CT#3: must throw NotSupportedException");
 225                         } catch (Exception e) {
 226                                 Assert.IsTrue (e is NotSupportedException, "CT#3");
 227                         }
 228
 229                         try {
 230                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 231                                                  rect, typeof (RectangleF));
 232                                 Assert.Fail ("CT#4: must throw NotSupportedException");
 233                         } catch (Exception e) {
 234                                 Assert.IsTrue (e is NotSupportedException, "CT#4");
 235                         }
 236
 237                         try {
 238                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 239                                                  rect, typeof (Size));
 240                                 Assert.Fail ("CT#5: must throw NotSupportedException");
 241                         } catch (Exception e) {
 242                                 Assert.IsTrue (e is NotSupportedException, "CT#5");
 243                         }
 244
 245                         try {
 246                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 247                                                  rect, typeof (SizeF));
 248                                 Assert.Fail ("CT#6: must throw NotSupportedException");
 249                         } catch (Exception e) {
 250                                 Assert.IsTrue (e is NotSupportedException, "CT#6");
 251                         }
 252
 253                         try {
 254                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 255                                                  rect, typeof (Point));
 256                                 Assert.Fail ("CT#7: must throw NotSupportedException");
 257                         } catch (Exception e) {
 258                                 Assert.IsTrue (e is NotSupportedException, "CT#7");
 259                         }
 260
 261                         try {
 262                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 263                                                  rect, typeof (PointF));
 264                                 Assert.Fail ("CT#8: must throw NotSupportedException");
 265                         } catch (Exception e) {
 266                                 Assert.IsTrue (e is NotSupportedException, "CT#8");
 267                         }
 268
 269                         try {
 270                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 271                                                  rect, typeof (Object));
 272                                 Assert.Fail ("CT#9: must throw NotSupportedException");
 273                         } catch (Exception e) {
 274                                 Assert.IsTrue (e is NotSupportedException, "CT#9");
 275                         }
 276
 277                         try {
 278                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 279                                                  rect, typeof (int));
 280                                 Assert.Fail ("CT#10: must throw NotSupportedException");
 281                         } catch (Exception e) {
 282                                 Assert.IsTrue (e is NotSupportedException, "CT#10");
 283                         }
 284                 }
 285
 286                 [Test]
 287                 public void TestGetCreateInstanceSupported ()
 288                 {
 289                         Assert.IsTrue (rconv.GetCreateInstanceSupported (), "GCIS#1");
 290                         Assert.IsTrue (rconv.GetCreateInstanceSupported (null), "GCIS#2");
 291                 }
 292
 293                 [Test]
 294                 public void TestCreateInstance ()
 295                 {
 296                         Rectangle rectInstance;
 297
 298                         Hashtable ht = new Hashtable ();
 299                         ht.Add ("X", 10); ht.Add ("Y", 10);
 300                         ht.Add ("Width", 20); ht.Add ("Height", 30);
 301
 302                         rectInstance = (Rectangle) rconv.CreateInstance (ht);
 303                         Assert.AreEqual (rect, rectInstance, "CI#1");
 304
 305                         ht.Clear ();
 306                         ht.Add ("X", -10); ht.Add ("Y", -10);
 307                         ht.Add ("Width", 20); ht.Add ("Height", 30);
 308
 309                         rectInstance = (Rectangle) rconv.CreateInstance (null, ht);
 310                         Assert.AreEqual (rectneg, rectInstance, "CI#2");
 311                 }
 312
 313                 [Test]
 314 #if NET_2_0
 315                 [ExpectedException (typeof (ArgumentException))]
 316 #else
 317                 [ExpectedException (typeof (NullReferenceException))]
 318 #endif
 319                 public void TestCreateInstance_CaseSensitive ()
 320                 {
 321                         Hashtable ht = new Hashtable ();
 322                         ht.Add ("x", -10);
 323                         ht.Add ("Y", -10);
 324                         ht.Add ("Width", 20);
 325                         ht.Add ("Height", 30);
 326                         rconv.CreateInstance (null, ht);
 327                 }
 328
 329                 [Test]
 330                 public void TestGetPropertiesSupported ()
 331                 {
 332                         Assert.IsTrue (rconv.GetPropertiesSupported (), "GPS#1");
 333                         Assert.IsTrue (rconv.GetPropertiesSupported (null), "GPS#2");
 334                 }
 335
 336                 [Test]
 337 #if TARGET_JVM
 338                 [NUnit.Framework.Category ("NotWorking")]
 339 #endif
 340                 public void TestGetProperties ()
 341                 {
 342                         Attribute [] attrs;
 343                         PropertyDescriptorCollection propsColl;
 344
 345                         propsColl = rconv.GetProperties (rect);
 346                         Assert.AreEqual (4, propsColl.Count, "GP1#1");
 347                         Assert.AreEqual (rect.X, propsColl["X"].GetValue (rect), "GP1#2");
 348                         Assert.AreEqual (rect.Y, propsColl["Y"].GetValue (rect), "GP1#3");
 349                         Assert.AreEqual (rect.Width, propsColl["Width"].GetValue (rect), "GP1#4");
 350                         Assert.AreEqual (rect.Height, propsColl["Height"].GetValue (rect), "GP1#5");
 351
 352                         propsColl = rconv.GetProperties (null, rectneg);
 353                         Assert.AreEqual (4, propsColl.Count, "GP2#1");
 354                         Assert.AreEqual (rectneg.X, propsColl["X"].GetValue (rectneg), "GP2#2");
 355                         Assert.AreEqual (rectneg.Y, propsColl["Y"].GetValue (rectneg), "GP2#3");
 356                         Assert.AreEqual (rectneg.Width, propsColl["Width"].GetValue (rectneg), "GP2#4");
 357                         Assert.AreEqual (rectneg.Height, propsColl["Height"].GetValue (rectneg), "GP2#5");
 358
 359                         propsColl = rconv.GetProperties (null, rect, null);
 360                         Assert.AreEqual (11, propsColl.Count, "GP3#1");
 361                         Assert.AreEqual (rect.X, propsColl["X"].GetValue (rect), "GP3#2");
 362                         Assert.AreEqual (rect.Y, propsColl["Y"].GetValue (rect), "GP3#3");
 363                         Assert.AreEqual (rect.Width, propsColl["Width"].GetValue (rect), "GP3#4");
 364                         Assert.AreEqual (rect.Height, propsColl["Height"].GetValue (rect), "GP3#5");
 365
 366                         Assert.AreEqual (rect.Top, propsColl["Top"].GetValue (rect), "GP3#6");
 367                         Assert.AreEqual (rect.Bottom, propsColl["Bottom"].GetValue (rect), "GP3#7");
 368                         Assert.AreEqual (rect.Left, propsColl["Left"].GetValue (rect), "GP3#8");
 369                         Assert.AreEqual (rect.Right, propsColl["Right"].GetValue (rect), "GP3#9");
 370                         Assert.AreEqual (rect.Location, propsColl["Location"].GetValue (rect), "GP3#10");
 371                         Assert.AreEqual (rect.Size, propsColl["Size"].GetValue (rect), "GP3#11");
 372                         Assert.AreEqual (rect.IsEmpty, propsColl["IsEmpty"].GetValue (rect), "GP3#12");
 373
 374                         Type type = typeof (Rectangle);
 375                         attrs = Attribute.GetCustomAttributes (type, true);
 376                         propsColl = rconv.GetProperties (null, rect, attrs);
 377                         Assert.AreEqual (0, propsColl.Count, "GP3#13");
 378                 }
 379
 380                 [Test]
 381                 public void ConvertFromInvariantString_string ()
 382                 {
 383                         Assert.AreEqual (rect, rconv.ConvertFromInvariantString (rectStrInvariant),
 384                                 "CFISS#1");
 385                         Assert.AreEqual (rectneg, rconv.ConvertFromInvariantString (rectnegStrInvariant),
 386                                 "CFISS#2");
 387                 }
 388
 389                 [Test]
 390                 [ExpectedException (typeof (ArgumentException))]
 391                 public void ConvertFromInvariantString_string_exc_1 ()
 392                 {
 393                         rconv.ConvertFromInvariantString ("1, 2, 3");
 394                 }
 395
 396                 [Test]
 397 #if TARGET_JVM
 398                 [NUnit.Framework.Category ("NotWorking")]
 399 #endif
 400                 public void ConvertFromInvariantString_string_exc_2 ()
 401                 {
 402                         try {
 403                                 rconv.ConvertFromInvariantString ("hello");
 404                                 Assert.Fail ("#1");
 405                         } catch (Exception ex) {
 406                                 Assert.AreEqual (typeof (Exception), ex.GetType (), "#2");
 407                                 Assert.IsNotNull (ex.InnerException, "#3");
 408                                 Assert.AreEqual (typeof (FormatException), ex.InnerException.GetType (), "#3");
 409                         }
 410                 }
 411
 412                 [Test]
 413 #if TARGET_JVM
 414                 [NUnit.Framework.Category ("NotWorking")]
 415 #endif
 416                 public void ConvertFromString_string ()
 417                 {
 418                         // save current culture
 419                         CultureInfo currentCulture = Thread.CurrentThread.CurrentCulture;
 420
 421                         try {
 422                                 PerformConvertFromStringTest (new CultureInfo ("en-US"));
 423                                 PerformConvertFromStringTest (new CultureInfo ("nl-BE"));
 424                                 PerformConvertFromStringTest (new MyCultureInfo ());
 425                         } finally {
 426                                 // restore original culture
 427                                 Thread.CurrentThread.CurrentCulture = currentCulture;
 428                         }
 429                 }
 430
 431                 [Test]
 432                 [ExpectedException (typeof (ArgumentException))]
 433                 public void ConvertFromString_string_exc_1 ()
 434                 {
 435                         CultureInfo culture = CultureInfo.CurrentCulture;
 436                         rconv.ConvertFromString (string.Format(culture,
 437                                 "1{0} 2{0} 3{0} 4{0} 5", culture.TextInfo.ListSeparator));
 438                 }
 439
 440                 [Test]
 441 #if TARGET_JVM
 442                 [NUnit.Framework.Category ("NotWorking")]
 443 #endif
 444                 public void ConvertFromString_string_exc_2 ()
 445                 {
 446                         try {
 447                                 rconv.ConvertFromString ("hello");
 448                                 Assert.Fail ("#1");
 449                         } catch (Exception ex) {
 450                                 Assert.AreEqual (typeof (Exception), ex.GetType (), "#2");
 451                                 Assert.IsNotNull (ex.InnerException, "#3");
 452                                 Assert.AreEqual (typeof (FormatException), ex.InnerException.GetType (), "#3");
 453                         }
 454                 }
 455
 456                 [Test]
 457                 public void ConvertToInvariantString_string ()
 458                 {
 459                         Assert.AreEqual (rectStrInvariant, rconv.ConvertToInvariantString (rect),
 460                                 "CFISS#1");
 461                         Assert.AreEqual (rectnegStrInvariant, rconv.ConvertToInvariantString (rectneg),
 462                                 "CFISS#2");
 463                 }
 464
 465                 [Test]
 466                 public void ConvertToString_string () {
 467                         // save current culture
 468                         CultureInfo currentCulture = Thread.CurrentThread.CurrentCulture;
 469
 470                         try {
 471                                 PerformConvertToStringTest (new CultureInfo ("en-US"));
 472                                 PerformConvertToStringTest (new CultureInfo ("nl-BE"));
 473                                 PerformConvertToStringTest (new MyCultureInfo ());
 474                         } finally {
 475                                 // restore original culture
 476                                 Thread.CurrentThread.CurrentCulture = currentCulture;
 477                         }
 478                 }
 479
 480                 [Test]
 481                 public void GetStandardValuesSupported ()
 482                 {
 483                         Assert.IsFalse (rconv.GetStandardValuesSupported ());
 484                 }
 485
 486                 [Test]
 487                 public void GetStandardValues ()
 488                 {
 489                         Assert.IsNull (rconv.GetStandardValues ());
 490                 }
 491
 492                 [Test]
 493                 public void GetStandardValuesExclusive ()
 494                 {
 495                         Assert.IsFalse (rconv.GetStandardValuesExclusive ());
 496                 }
 497
 498                 private void PerformConvertFromStringTest (CultureInfo culture)
 499                 {
 500                         // set current culture
 501                         Thread.CurrentThread.CurrentCulture = culture;
 502
 503                         // perform tests
 504                         Assert.AreEqual (rect, rconv.ConvertFromString (CreateRectangleString (rect)),
 505                                 "CFSS#1-" + culture.Name);
 506                         Assert.AreEqual (rectneg, rconv.ConvertFromString (CreateRectangleString (rectneg)),
 507                                 "CFSS#2-" + culture.Name);
 508                 }
 509
 510                 private void PerformConvertToStringTest (CultureInfo culture)
 511                 {
 512                         // set current culture
 513                         Thread.CurrentThread.CurrentCulture = culture;
 514
 515                         // perform tests
 516                         Assert.AreEqual (CreateRectangleString (rect), rconv.ConvertToString (rect),
 517                                 "CFISS#1-" + culture.Name);
 518                         Assert.AreEqual (CreateRectangleString (rectneg), rconv.ConvertToString (rectneg),
 519                                 "CFISS#2-" + culture.Name);
 520                 }
 521
 522                 private static string CreateRectangleString (Rectangle rectangle)
 523                 {
 524                         return CreateRectangleString (CultureInfo.CurrentCulture, rectangle);
 525                 }
 526
 527                 private static string CreateRectangleString (CultureInfo culture, Rectangle rectangle)
 528                 {
 529                         return string.Format ("{0}{1} {2}{1} {3}{1} {4}", rectangle.X.ToString (culture),
 530                                 culture.TextInfo.ListSeparator, rectangle.Y.ToString (culture),
 531                                 rectangle.Width.ToString (culture), rectangle.Height.ToString (culture));
 532                 }
 533
 534                 [Serializable]
 535                 private sealed class MyCultureInfo : CultureInfo
 536                 {
 537                         internal MyCultureInfo ()
 538                                 : base ("en-US")
 539                         {
 540                         }
 541
 542                         public override object GetFormat (Type formatType)
 543                         {
 544                                 if (formatType == typeof (NumberFormatInfo)) {
 545                                         NumberFormatInfo nfi = (NumberFormatInfo) ((NumberFormatInfo) base.GetFormat (formatType)).Clone ();
 546
 547                                         nfi.NegativeSign = "myNegativeSign";
 548                                         return NumberFormatInfo.ReadOnly (nfi);
 549                                 } else {
 550                                         return base.GetFormat (formatType);
 551                                 }
 552                         }
 553                 }
 554         }
 555 }