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                 public void TestCanConvertFrom ()
  73                 {
  74                         Assert.IsTrue (rconv.CanConvertFrom (typeof (String)), "CCF#1");
  75                         Assert.IsTrue (rconv.CanConvertFrom (null, typeof (String)), "CCF#2");
  76                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Rectangle)), "CCF#3");
  77                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (RectangleF)), "CCF#4");
  78                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Point)), "CCF#5");
  79                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (PointF)), "CCF#6");
  80                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Size)), "CCF#7");
  81                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (SizeF)), "CCF#8");
  82                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (Object)), "CCF#9");
  83                         Assert.IsFalse (rconv.CanConvertFrom (null, typeof (int)), "CCF#10");
  84                         Assert.IsTrue (rconv.CanConvertFrom (null, typeof (InstanceDescriptor)), "CCF#11");
  85                 }
  86
  87                 [Test]
  88                 public void TestCanConvertTo ()
  89                 {
  90                         Assert.IsTrue (rconv.CanConvertTo (typeof (String)), "CCT#1");
  91                         Assert.IsTrue (rconv.CanConvertTo (null, typeof (String)), "CCT#2");
  92                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Rectangle)), "CCT#3");
  93                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (RectangleF)), "CCT#4");
  94                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Point)), "CCT#5");
  95                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (PointF)), "CCT#6");
  96                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Size)), "CCT#7");
  97                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (SizeF)), "CCT#8");
  98                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (Object)), "CCT#9");
  99                         Assert.IsFalse (rconv.CanConvertTo (null, typeof (int)), "CCT#10");
 100                 }
 101
 102                 [Test]
 103                 public void TestConvertFrom ()
 104                 {
 105                         Assert.AreEqual (rect, (Rectangle) rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 106                                                                 "10, 10, 20, 30"), "CF#1");
 107                         Assert.AreEqual (rectneg, (Rectangle) rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 108                                                                 "-10, -10, 20, 30"), "CF#2");
 109
 110                         try {
 111                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 112                                                    "10, 10");
 113                                 Assert.Fail ("CF#3: must throw ArgumentException");
 114                         } catch (Exception e) {
 115                                 Assert.IsTrue (e is ArgumentException, "CF#3");
 116                         }
 117
 118                         try {
 119                                 rconv.ConvertFrom ("10");
 120                                 Assert.Fail ("CF#3a: must throw ArgumentException");
 121                         } catch (Exception e) {
 122                                 Assert.IsTrue (e is ArgumentException, "CF#3a");
 123                         }
 124
 125                         try {
 126                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 127                                                    "1, 1, 1, 1, 1");
 128                                 Assert.Fail ("CF#4: must throw ArgumentException");
 129                         } catch (Exception e) {
 130                                 Assert.IsTrue (e is ArgumentException, "CF#4");
 131                         }
 132
 133                         try {
 134                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 135                                                    "*1, 1, 1, 1");
 136                                 Assert.Fail ("CF#5: must throw Exception");
 137                         } catch (Exception ex) {
 138                                 Assert.AreEqual (typeof (Exception), ex.GetType (), "CF#5-2");
 139                                 Assert.IsNotNull (ex.InnerException, "CF#5-3");
 140                                 Assert.AreEqual (typeof (FormatException), ex.InnerException.GetType (), "CF#5-4");
 141                         }
 142
 143                         try {
 144                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 145                                                    new Rectangle (10, 10, 100, 100));
 146                                 Assert.Fail ("CF#6: must throw NotSupportedException");
 147                         } catch (Exception e) {
 148                                 Assert.IsTrue (e is NotSupportedException, "CF#6");
 149                         }
 150
 151                         try {
 152                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 153                                                    new RectangleF (10, 10, 100, 100));
 154                                 Assert.Fail ("CF#7: must throw NotSupportedException");
 155                         } catch (Exception e) {
 156                                 Assert.IsTrue (e is NotSupportedException, "CF#7");
 157                         }
 158
 159                         try {
 160                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 161                                                    new Point (10, 10));
 162                                 Assert.Fail ("CF#8: must throw NotSupportedException");
 163                         } catch (Exception e) {
 164                                 Assert.IsTrue (e is NotSupportedException, "CF#8");
 165                         }
 166
 167                         try {
 168                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 169                                                    new PointF (10, 10));
 170                                 Assert.Fail ("CF#9: must throw NotSupportedException");
 171                         } catch (Exception e) {
 172                                 Assert.IsTrue (e is NotSupportedException, "CF#9");
 173                         }
 174
 175                         try {
 176                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 177                                                    new Size (10, 10));
 178                                 Assert.Fail ("CF#10: must throw NotSupportedException");
 179                         } catch (Exception e) {
 180                                 Assert.IsTrue (e is NotSupportedException, "CF#10");
 181                         }
 182
 183                         try {
 184                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 185                                                    new SizeF (10, 10));
 186                                 Assert.Fail ("CF#11: must throw NotSupportedException");
 187                         } catch (Exception e) {
 188                                 Assert.IsTrue (e is NotSupportedException, "CF#11");
 189                         }
 190
 191                         try {
 192                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture,
 193                                                    new Object ());
 194                                 Assert.Fail ("CF#12: must throw NotSupportedException");
 195                         } catch (Exception e) {
 196                                 Assert.IsTrue (e is NotSupportedException, "CF#12");
 197                         }
 198
 199                         try {
 200                                 rconv.ConvertFrom (null, CultureInfo.InvariantCulture, 1001);
 201                                 Assert.Fail ("CF#13: must throw NotSupportedException");
 202                         } catch (Exception e) {
 203                                 Assert.IsTrue (e is NotSupportedException, "CF#13");
 204                         }
 205                 }
 206
 207                 [Test]
 208                 public void TestConvertTo ()
 209                 {
 210                         Assert.AreEqual (rectStrInvariant, (String) rconv.ConvertTo (null,
 211                                 CultureInfo.InvariantCulture, rect, typeof (String)), "CT#1");
 212                         Assert.AreEqual (rectnegStrInvariant, (String) rconv.ConvertTo (null,
 213                                 CultureInfo.InvariantCulture, rectneg, typeof (String)), "CT#2");
 214
 215                         try {
 216                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 217                                                  rect, typeof (Rectangle));
 218                                 Assert.Fail ("CT#3: must throw NotSupportedException");
 219                         } catch (Exception e) {
 220                                 Assert.IsTrue (e is NotSupportedException, "CT#3");
 221                         }
 222
 223                         try {
 224                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 225                                                  rect, typeof (RectangleF));
 226                                 Assert.Fail ("CT#4: must throw NotSupportedException");
 227                         } catch (Exception e) {
 228                                 Assert.IsTrue (e is NotSupportedException, "CT#4");
 229                         }
 230
 231                         try {
 232                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 233                                                  rect, typeof (Size));
 234                                 Assert.Fail ("CT#5: must throw NotSupportedException");
 235                         } catch (Exception e) {
 236                                 Assert.IsTrue (e is NotSupportedException, "CT#5");
 237                         }
 238
 239                         try {
 240                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 241                                                  rect, typeof (SizeF));
 242                                 Assert.Fail ("CT#6: must throw NotSupportedException");
 243                         } catch (Exception e) {
 244                                 Assert.IsTrue (e is NotSupportedException, "CT#6");
 245                         }
 246
 247                         try {
 248                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 249                                                  rect, typeof (Point));
 250                                 Assert.Fail ("CT#7: must throw NotSupportedException");
 251                         } catch (Exception e) {
 252                                 Assert.IsTrue (e is NotSupportedException, "CT#7");
 253                         }
 254
 255                         try {
 256                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 257                                                  rect, typeof (PointF));
 258                                 Assert.Fail ("CT#8: must throw NotSupportedException");
 259                         } catch (Exception e) {
 260                                 Assert.IsTrue (e is NotSupportedException, "CT#8");
 261                         }
 262
 263                         try {
 264                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 265                                                  rect, typeof (Object));
 266                                 Assert.Fail ("CT#9: must throw NotSupportedException");
 267                         } catch (Exception e) {
 268                                 Assert.IsTrue (e is NotSupportedException, "CT#9");
 269                         }
 270
 271                         try {
 272                                 rconv.ConvertTo (null, CultureInfo.InvariantCulture,
 273                                                  rect, typeof (int));
 274                                 Assert.Fail ("CT#10: must throw NotSupportedException");
 275                         } catch (Exception e) {
 276                                 Assert.IsTrue (e is NotSupportedException, "CT#10");
 277                         }
 278                 }
 279
 280                 [Test]
 281                 public void TestGetCreateInstanceSupported ()
 282                 {
 283                         Assert.IsTrue (rconv.GetCreateInstanceSupported (), "GCIS#1");
 284                         Assert.IsTrue (rconv.GetCreateInstanceSupported (null), "GCIS#2");
 285                 }
 286
 287                 [Test]
 288                 public void TestCreateInstance ()
 289                 {
 290                         Rectangle rectInstance;
 291
 292                         Hashtable ht = new Hashtable ();
 293                         ht.Add ("X", 10); ht.Add ("Y", 10);
 294                         ht.Add ("Width", 20); ht.Add ("Height", 30);
 295
 296                         rectInstance = (Rectangle) rconv.CreateInstance (ht);
 297                         Assert.AreEqual (rect, rectInstance, "CI#1");
 298
 299                         ht.Clear ();
 300                         ht.Add ("X", -10); ht.Add ("Y", -10);
 301                         ht.Add ("Width", 20); ht.Add ("Height", 30);
 302
 303                         rectInstance = (Rectangle) rconv.CreateInstance (null, ht);
 304                         Assert.AreEqual (rectneg, rectInstance, "CI#2");
 305
 306                         // Property names are case-sensitive. It should throw
 307                         // NullRefExc if any of the property names does not match
 308                         ht.Clear ();
 309                         ht.Add ("x", -10); ht.Add ("Y", -10);
 310                         ht.Add ("Width", 20); ht.Add ("Height", 30);
 311                         try {
 312                                 rectInstance = (Rectangle) rconv.CreateInstance (null, ht);
 313                                 Assert.Fail ("CI#3: must throw NullReferenceException");
 314                         } catch (Exception e) {
 315                                 Assert.IsTrue (e is NullReferenceException, "CI#3");
 316                         }
 317                 }
 318
 319                 [Test]
 320                 public void TestGetPropertiesSupported ()
 321                 {
 322                         Assert.IsTrue (rconv.GetPropertiesSupported (), "GPS#1");
 323                         Assert.IsTrue (rconv.GetPropertiesSupported (null), "GPS#2");
 324                 }
 325
 326                 [Test]
 327                 public void TestGetProperties ()
 328                 {
 329                         Attribute [] attrs;
 330                         PropertyDescriptorCollection propsColl;
 331
 332                         propsColl = rconv.GetProperties (rect);
 333                         Assert.AreEqual (4, propsColl.Count, "GP1#1");
 334                         Assert.AreEqual (rect.X, propsColl["X"].GetValue (rect), "GP1#2");
 335                         Assert.AreEqual (rect.Y, propsColl["Y"].GetValue (rect), "GP1#3");
 336                         Assert.AreEqual (rect.Width, propsColl["Width"].GetValue (rect), "GP1#4");
 337                         Assert.AreEqual (rect.Height, propsColl["Height"].GetValue (rect), "GP1#5");
 338
 339                         propsColl = rconv.GetProperties (null, rectneg);
 340                         Assert.AreEqual (4, propsColl.Count, "GP2#1");
 341                         Assert.AreEqual (rectneg.X, propsColl["X"].GetValue (rectneg), "GP2#2");
 342                         Assert.AreEqual (rectneg.Y, propsColl["Y"].GetValue (rectneg), "GP2#3");
 343                         Assert.AreEqual (rectneg.Width, propsColl["Width"].GetValue (rectneg), "GP2#4");
 344                         Assert.AreEqual (rectneg.Height, propsColl["Height"].GetValue (rectneg), "GP2#5");
 345
 346                         propsColl = rconv.GetProperties (null, rect, null);
 347                         Assert.AreEqual (11, propsColl.Count, "GP3#1");
 348                         Assert.AreEqual (rect.X, propsColl["X"].GetValue (rect), "GP3#2");
 349                         Assert.AreEqual (rect.Y, propsColl["Y"].GetValue (rect), "GP3#3");
 350                         Assert.AreEqual (rect.Width, propsColl["Width"].GetValue (rect), "GP3#4");
 351                         Assert.AreEqual (rect.Height, propsColl["Height"].GetValue (rect), "GP3#5");
 352
 353                         Assert.AreEqual (rect.Top, propsColl["Top"].GetValue (rect), "GP3#6");
 354                         Assert.AreEqual (rect.Bottom, propsColl["Bottom"].GetValue (rect), "GP3#7");
 355                         Assert.AreEqual (rect.Left, propsColl["Left"].GetValue (rect), "GP3#8");
 356                         Assert.AreEqual (rect.Right, propsColl["Right"].GetValue (rect), "GP3#9");
 357                         Assert.AreEqual (rect.Location, propsColl["Location"].GetValue (rect), "GP3#10");
 358                         Assert.AreEqual (rect.Size, propsColl["Size"].GetValue (rect), "GP3#11");
 359                         Assert.AreEqual (rect.IsEmpty, propsColl["IsEmpty"].GetValue (rect), "GP3#12");
 360
 361                         Type type = typeof (Rectangle);
 362                         attrs = Attribute.GetCustomAttributes (type, true);
 363                         propsColl = rconv.GetProperties (null, rect, attrs);
 364                         Assert.AreEqual (0, propsColl.Count, "GP3#13");
 365                 }
 366
 367                 [Test]
 368                 public void ConvertFromInvariantString_string ()
 369                 {
 370                         Assert.AreEqual (rect, rconv.ConvertFromInvariantString (rectStrInvariant),
 371                                 "CFISS#1");
 372                         Assert.AreEqual (rectneg, rconv.ConvertFromInvariantString (rectnegStrInvariant),
 373                                 "CFISS#2");
 374                 }
 375
 376                 [Test]
 377                 [ExpectedException (typeof (ArgumentException))]
 378                 public void ConvertFromInvariantString_string_exc_1 ()
 379                 {
 380                         rconv.ConvertFromInvariantString ("1, 2, 3");
 381                 }
 382
 383                 [Test]
 384                 public void ConvertFromInvariantString_string_exc_2 ()
 385                 {
 386                         try {
 387                                 rconv.ConvertFromInvariantString ("hello");
 388                                 Assert.Fail ("#1");
 389                         } catch (Exception ex) {
 390                                 Assert.AreEqual (typeof (Exception), ex.GetType (), "#2");
 391                                 Assert.IsNotNull (ex.InnerException, "#3");
 392                                 Assert.AreEqual (typeof (FormatException), ex.InnerException.GetType (), "#3");
 393                         }
 394                 }
 395
 396                 [Test]
 397                 public void ConvertFromString_string ()
 398                 {
 399                         // save current culture
 400                         CultureInfo currentCulture = Thread.CurrentThread.CurrentCulture;
 401
 402                         try {
 403                                 PerformConvertFromStringTest (new CultureInfo ("en-US"));
 404                                 PerformConvertFromStringTest (new CultureInfo ("nl-BE"));
 405                                 PerformConvertFromStringTest (new MyCultureInfo ());
 406                         } finally {
 407                                 // restore original culture
 408                                 Thread.CurrentThread.CurrentCulture = currentCulture;
 409                         }
 410                 }
 411
 412                 [Test]
 413                 [ExpectedException (typeof (ArgumentException))]
 414                 public void ConvertFromString_string_exc_1 ()
 415                 {
 416                         CultureInfo culture = CultureInfo.CurrentCulture;
 417                         rconv.ConvertFromString (string.Format(culture,
 418                                 "1{0} 2{0} 3{0} 4{0} 5", culture.TextInfo.ListSeparator));
 419                 }
 420
 421                 [Test]
 422                 public void ConvertFromString_string_exc_2 ()
 423                 {
 424                         try {
 425                                 rconv.ConvertFromString ("hello");
 426                                 Assert.Fail ("#1");
 427                         } catch (Exception ex) {
 428                                 Assert.AreEqual (typeof (Exception), ex.GetType (), "#2");
 429                                 Assert.IsNotNull (ex.InnerException, "#3");
 430                                 Assert.AreEqual (typeof (FormatException), ex.InnerException.GetType (), "#3");
 431                         }
 432                 }
 433
 434                 [Test]
 435                 public void ConvertToInvariantString_string ()
 436                 {
 437                         Assert.AreEqual (rectStrInvariant, rconv.ConvertToInvariantString (rect),
 438                                 "CFISS#1");
 439                         Assert.AreEqual (rectnegStrInvariant, rconv.ConvertToInvariantString (rectneg),
 440                                 "CFISS#2");
 441                 }
 442
 443                 [Test]
 444                 public void ConvertToString_string () {
 445                         // save current culture
 446                         CultureInfo currentCulture = Thread.CurrentThread.CurrentCulture;
 447
 448                         try {
 449                                 PerformConvertToStringTest (new CultureInfo ("en-US"));
 450                                 PerformConvertToStringTest (new CultureInfo ("nl-BE"));
 451                                 PerformConvertToStringTest (new MyCultureInfo ());
 452                         } finally {
 453                                 // restore original culture
 454                                 Thread.CurrentThread.CurrentCulture = currentCulture;
 455                         }
 456                 }
 457
 458                 [Test]
 459                 public void GetStandardValuesSupported ()
 460                 {
 461                         Assert.IsFalse (rconv.GetStandardValuesSupported ());
 462                 }
 463
 464                 [Test]
 465                 public void GetStandardValues ()
 466                 {
 467                         Assert.IsNull (rconv.GetStandardValues ());
 468                 }
 469
 470                 [Test]
 471                 public void GetStandardValuesExclusive ()
 472                 {
 473                         Assert.IsFalse (rconv.GetStandardValuesExclusive ());
 474                 }
 475
 476                 private void PerformConvertFromStringTest (CultureInfo culture)
 477                 {
 478                         // set current culture
 479                         Thread.CurrentThread.CurrentCulture = culture;
 480
 481                         // perform tests
 482                         Assert.AreEqual (rect, rconv.ConvertFromString (CreateRectangleString (rect)),
 483                                 "CFSS#1-" + culture.Name);
 484                         Assert.AreEqual (rectneg, rconv.ConvertFromString (CreateRectangleString (rectneg)),
 485                                 "CFSS#2-" + culture.Name);
 486                 }
 487
 488                 private void PerformConvertToStringTest (CultureInfo culture)
 489                 {
 490                         // set current culture
 491                         Thread.CurrentThread.CurrentCulture = culture;
 492
 493                         // perform tests
 494                         Assert.AreEqual (CreateRectangleString (rect), rconv.ConvertToString (rect),
 495                                 "CFISS#1-" + culture.Name);
 496                         Assert.AreEqual (CreateRectangleString (rectneg), rconv.ConvertToString (rectneg),
 497                                 "CFISS#2-" + culture.Name);
 498                 }
 499
 500                 private static string CreateRectangleString (Rectangle rectangle)
 501                 {
 502                         return CreateRectangleString (CultureInfo.CurrentCulture, rectangle);
 503                 }
 504
 505                 private static string CreateRectangleString (CultureInfo culture, Rectangle rectangle)
 506                 {
 507                         return string.Format ("{0}{1} {2}{1} {3}{1} {4}", rectangle.X.ToString (culture),
 508                                 culture.TextInfo.ListSeparator, rectangle.Y.ToString (culture),
 509                                 rectangle.Width.ToString (culture), rectangle.Height.ToString (culture));
 510                 }
 511
 512                 [Serializable]
 513                 private sealed class MyCultureInfo : CultureInfo
 514                 {
 515                         internal MyCultureInfo ()
 516                                 : base ("en-US")
 517                         {
 518                         }
 519
 520                         public override object GetFormat (Type formatType)
 521                         {
 522                                 if (formatType == typeof (NumberFormatInfo)) {
 523                                         NumberFormatInfo nfi = (NumberFormatInfo) ((NumberFormatInfo) base.GetFormat (formatType)).Clone ();
 524
 525                                         nfi.NegativeSign = "myNegativeSign";
 526                                         return NumberFormatInfo.ReadOnly (nfi);
 527                                 } else {
 528                                         return base.GetFormat (formatType);
 529                                 }
 530                         }
 531                 }
 532         }
 533 }