mcs/class/System.Data/Test/System.Data/DataTableTest.cs

   1 // DataTableTest.cs - NUnit Test Cases for testing the DataTable
   2 //
   3 // Authors:
   4 //   Franklin Wise (gracenote@earthlink.net)
   5 //   Martin Willemoes Hansen (mwh@sysrq.dk)
   6 //
   7 // (C) Franklin Wise
   8 // (C) 2003 Martin Willemoes Hansen
   9 //
  10
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using NUnit.Framework;
  35 using System;
  36 using System.Data;
  37 using System.Globalization;
  38 using System.IO;
  39 using System.Runtime.Serialization.Formatters.Binary;
  40 using System.Xml;
  41
  42 namespace MonoTests.System.Data
  43 {
  44         [TestFixture]
  45         public class DataTableTest : Assertion
  46         {
  47                 [Test]
  48                 public void Ctor()
  49                 {
  50                         DataTable dt = new DataTable();
  51
  52                         AssertEquals("CaseSensitive must be false." ,false,dt.CaseSensitive);
  53                         Assert("Col",dt.Columns != null);
  54                         //Assert(dt.ChildRelations != null);
  55                         Assert("Const", dt.Constraints != null);
  56                         Assert("ds", dt.DataSet == null);
  57                         Assert("dv", dt.DefaultView != null);
  58                         Assert("de", dt.DisplayExpression == "");
  59                         Assert("ep", dt.ExtendedProperties != null);
  60                         Assert("he", dt.HasErrors == false);
  61                         Assert("lc", dt.Locale != null);
  62                         Assert("mc", dt.MinimumCapacity == 50); //LAMESPEC:
  63                         Assert("ns", dt.Namespace == "");
  64                         //Assert(dt.ParentRelations != null);
  65                         Assert("pf", dt.Prefix == "");
  66                         Assert("pk", dt.PrimaryKey != null);
  67                         Assert("rows", dt.Rows != null);
  68                         Assert("Site", dt.Site == null);
  69                         Assert("tname", dt.TableName == "");
  70
  71                 }
  72
  73                 [Test]
  74                 public void Select ()
  75                 {
  76                         DataSet Set = new DataSet ();
  77                         DataTable Mom = new DataTable ("Mom");
  78                         DataTable Child = new DataTable ("Child");
  79                         Set.Tables.Add (Mom);
  80                         Set.Tables.Add (Child);
  81
  82                         DataColumn Col = new DataColumn ("Name");
  83                         DataColumn Col2 = new DataColumn ("ChildName");
  84                         Mom.Columns.Add (Col);
  85                         Mom.Columns.Add (Col2);
  86
  87                         DataColumn Col3 = new DataColumn ("Name");
  88                         DataColumn Col4 = new DataColumn ("Age");
  89                         Col4.DataType = Type.GetType ("System.Int16");
  90                         Child.Columns.Add (Col3);
  91                         Child.Columns.Add (Col4);
  92
  93                         DataRelation Relation = new DataRelation ("Rel", Mom.Columns [1], Child.Columns [0]);
  94                         Set.Relations.Add (Relation);
  95
  96                         DataRow Row = Mom.NewRow ();
  97                         Row [0] = "Laura";
  98                         Row [1] = "Nick";
  99                         Mom.Rows.Add (Row);
 100
 101                         Row = Mom.NewRow ();
 102                         Row [0] = "Laura";
 103                         Row [1] = "Dick";
 104                         Mom.Rows.Add (Row);
 105
 106                         Row = Mom.NewRow ();
 107                         Row [0] = "Laura";
 108                         Row [1] = "Mick";
 109                         Mom.Rows.Add (Row);
 110
 111                         Row = Mom.NewRow ();
 112                         Row [0] = "Teresa";
 113                         Row [1] = "Jack";
 114                         Mom.Rows.Add (Row);
 115
 116                         Row = Mom.NewRow ();
 117                         Row [0] = "Teresa";
 118                         Row [1] = "Mack";
 119                         Mom.Rows.Add (Row);
 120
 121                         Row = Child.NewRow ();
 122                         Row [0] = "Nick";
 123                         Row [1] = 15;
 124                         Child.Rows.Add (Row);
 125
 126                         Row = Child.NewRow ();
 127                         Row [0] = "Dick";
 128                         Row [1] = 25;
 129                         Child.Rows.Add (Row);
 130
 131                         Row = Child.NewRow ();
 132                         Row [0] = "Mick";
 133                         Row [1] = 35;
 134                         Child.Rows.Add (Row);
 135
 136                         Row = Child.NewRow ();
 137                         Row [0] = "Jack";
 138                         Row [1] = 10;
 139                         Child.Rows.Add (Row);
 140
 141                         Row = Child.NewRow ();
 142                         Row [0] = "Mack";
 143                         Row [1] = 19;
 144                         Child.Rows.Add (Row);
 145
 146                         Row = Child.NewRow ();
 147                         Row [0] = "Mack";
 148                         Row [1] = 99;
 149                         Child.Rows.Add (Row);
 150
 151                         DataRow [] Rows = Mom.Select ("Name = 'Teresa'");
 152                         AssertEquals ("test#01", 2, Rows.Length);
 153
 154                         Rows = Mom.Select ("Name = 'Teresa' and ChildName = 'Nick'");
 155                         AssertEquals ("test#02", 0, Rows.Length);
 156
 157                         Rows = Mom.Select ("Name = 'Teresa' and ChildName = 'Jack'");
 158                         AssertEquals ("test#03", 1, Rows.Length);
 159
 160                         Rows = Mom.Select ("Name = 'Teresa' and ChildName <> 'Jack'");
 161                         AssertEquals ("test#04", "Mack", Rows [0] [1]);
 162
 163                         Rows = Mom.Select ("Name = 'Teresa' or ChildName <> 'Jack'");
 164                         AssertEquals ("test#05", 5, Rows.Length);
 165
 166                         Rows = Child.Select ("age = 20 - 1");
 167                         AssertEquals ("test#06", 1, Rows.Length);
 168
 169                         Rows = Child.Select ("age <= 20");
 170                         AssertEquals ("test#07", 3, Rows.Length);
 171
 172                         Rows = Child.Select ("age >= 20");
 173                         AssertEquals ("test#08", 3, Rows.Length);
 174
 175                         Rows = Child.Select ("age >= 20 and name = 'Mack' or name = 'Nick'");
 176                         AssertEquals ("test#09", 2, Rows.Length);
 177
 178                         Rows = Child.Select ("age >= 20 and (name = 'Mack' or name = 'Nick')");
 179                         AssertEquals ("test#10", 1, Rows.Length);
 180                         AssertEquals ("test#11", "Mack", Rows [0] [0]);
 181
 182                         Rows = Child.Select ("not (Name = 'Jack')");
 183                         AssertEquals ("test#12", 5, Rows.Length);
 184                 }
 185
 186                 [Test]
 187                 public void Select2 ()
 188                 {
 189                         DataSet Set = new DataSet ();
 190                         DataTable Child = new DataTable ("Child");
 191
 192                         Set.Tables.Add (Child);
 193
 194                         DataColumn Col3 = new DataColumn ("Name");
 195                         DataColumn Col4 = new DataColumn ("Age");
 196                         Col4.DataType = Type.GetType ("System.Int16");
 197                         Child.Columns.Add (Col3);
 198                         Child.Columns.Add (Col4);
 199
 200                         DataRow Row = Child.NewRow ();
 201                         Row [0] = "Nick";
 202                         Row [1] = 15;
 203                         Child.Rows.Add (Row);
 204
 205                         Row = Child.NewRow ();
 206                         Row [0] = "Dick";
 207                         Row [1] = 25;
 208                         Child.Rows.Add (Row);
 209
 210                         Row = Child.NewRow ();
 211                         Row [0] = "Mick";
 212                         Row [1] = 35;
 213                         Child.Rows.Add (Row);
 214
 215                         Row = Child.NewRow ();
 216                         Row [0] = "Jack";
 217                         Row [1] = 10;
 218                         Child.Rows.Add (Row);
 219
 220                         Row = Child.NewRow ();
 221                         Row [0] = "Mack";
 222                         Row [1] = 19;
 223                         Child.Rows.Add (Row);
 224
 225                         Row = Child.NewRow ();
 226                         Row [0] = "Mack";
 227                         Row [1] = 99;
 228                         Child.Rows.Add (Row);
 229
 230                         DataRow [] Rows = Child.Select ("age >= 20", "age DESC");
 231                         AssertEquals ("test#01", 3, Rows.Length);
 232                         AssertEquals ("test#02", "Mack", Rows [0] [0]);
 233                         AssertEquals ("test#03", "Mick", Rows [1] [0]);
 234                         AssertEquals ("test#04", "Dick", Rows [2] [0]);
 235
 236                         Rows = Child.Select ("age >= 20", "age asc");
 237                         AssertEquals ("test#05", 3, Rows.Length);
 238                         AssertEquals ("test#06", "Dick", Rows [0] [0]);
 239                         AssertEquals ("test#07", "Mick", Rows [1] [0]);
 240                         AssertEquals ("test#08", "Mack", Rows [2] [0]);
 241
 242                         Rows = Child.Select ("age >= 20", "name asc");
 243                         AssertEquals ("test#09", 3, Rows.Length);
 244                         AssertEquals ("test#10", "Dick", Rows [0] [0]);
 245                         AssertEquals ("test#11", "Mack", Rows [1] [0]);
 246                         AssertEquals ("test#12", "Mick", Rows [2] [0]);
 247
 248                         Rows = Child.Select ("age >= 20", "name desc");
 249                         AssertEquals ("test#09", 3, Rows.Length);
 250                         AssertEquals ("test#10", "Mick", Rows [0] [0]);
 251                         AssertEquals ("test#11", "Mack", Rows [1] [0]);
 252                         AssertEquals ("test#12", "Dick", Rows [2] [0]);
 253
 254                 }
 255
 256                 [Test]
 257                 public void SelectParsing ()
 258                 {
 259                         DataTable T = new DataTable ("test");
 260                         DataColumn C = new DataColumn ("name");
 261                         T.Columns.Add (C);
 262                         C = new DataColumn ("age");
 263                         C.DataType = typeof (int);
 264                         T.Columns.Add (C);
 265                         C = new DataColumn ("id");
 266                         T.Columns.Add (C);
 267
 268                         DataSet Set = new DataSet ("TestSet");
 269                         Set.Tables.Add (T);
 270
 271                         DataRow Row = null;
 272                         for (int i = 0; i < 100; i++) {
 273                                 Row = T.NewRow ();
 274                                 Row [0] = "human" + i;
 275                                 Row [1] = i;
 276                                 Row [2] = i;
 277                                 T.Rows.Add (Row);
 278                         }
 279
 280                         Row = T.NewRow ();
 281                         Row [0] = "h*an";
 282                         Row [1] = 1;
 283                         Row [2] = 1;
 284                         T.Rows.Add (Row);
 285
 286                         AssertEquals ("test#01", 12, T.Select ("age<=10").Length);
 287
 288                         AssertEquals ("test#02", 12, T.Select ("age\n\t<\n\t=\t\n10").Length);
 289
 290                         try {
 291                                 T.Select ("name = 1human ");
 292                                 Fail ("test#03");
 293                         } catch (Exception e) {
 294
 295                                 // missing operand after 'human' operand
 296                                 AssertEquals ("test#04", typeof (SyntaxErrorException), e.GetType ());
 297                         }
 298
 299                         try {
 300                                 T.Select ("name = 1");
 301                                 Fail ("test#05");
 302                         } catch (Exception e) {
 303
 304                                 // Cannot perform '=' operation between string and Int32
 305                                 AssertEquals ("test#06", typeof (EvaluateException), e.GetType ());
 306                         }
 307
 308                         AssertEquals ("test#07", 1, T.Select ("age = '13'").Length);
 309
 310                 }
 311
 312                 [Test]
 313                 public void SelectOperators ()
 314                 {
 315                         DataTable T = new DataTable ("test");
 316                         DataColumn C = new DataColumn ("name");
 317                         T.Columns.Add (C);
 318                         C = new DataColumn ("age");
 319                         C.DataType = typeof (int);
 320                         T.Columns.Add (C);
 321                         C = new DataColumn ("id");
 322                         T.Columns.Add (C);
 323
 324                         DataSet Set = new DataSet ("TestSet");
 325                         Set.Tables.Add (T);
 326
 327                         DataRow Row = null;
 328                         for (int i = 0; i < 100; i++) {
 329                                 Row = T.NewRow ();
 330                                 Row [0] = "human" + i;
 331                                 Row [1] = i;
 332                                 Row [2] = i;
 333                                 T.Rows.Add (Row);
 334                         }
 335
 336                         Row = T.NewRow ();
 337                         Row [0] = "h*an";
 338                         Row [1] = 1;
 339                         Row [2] = 1;
 340                         T.Rows.Add (Row);
 341
 342                         AssertEquals ("test#01", 11, T.Select ("age < 10").Length);
 343                         AssertEquals ("test#02", 12, T.Select ("age <= 10").Length);
 344                         AssertEquals ("test#03", 12, T.Select ("age< =10").Length);
 345                         AssertEquals ("test#04", 89, T.Select ("age > 10").Length);
 346                         AssertEquals ("test#05", 90, T.Select ("age >= 10").Length);
 347                         AssertEquals ("test#06", 100, T.Select ("age <> 10").Length);
 348                         AssertEquals ("test#07", 3, T.Select ("name < 'human10'").Length);
 349                         AssertEquals ("test#08", 3, T.Select ("id < '10'").Length);
 350                         // FIXME: Somebody explain how this can be possible.
 351                         // it seems that it is no matter between 10 - 30. The
 352                         // result is allways 25 :-P
 353                         //AssertEquals ("test#09", 25, T.Select ("id < 10").Length);
 354
 355                 }
 356
 357                 [Test]
 358                 public void SelectExceptions ()
 359                 {
 360                         DataTable T = new DataTable ("test");
 361                         DataColumn C = new DataColumn ("name");
 362                         T.Columns.Add (C);
 363                         C = new DataColumn ("age");
 364                         C.DataType = typeof (int);
 365                         T.Columns.Add (C);
 366                         C = new DataColumn ("id");
 367                         T.Columns.Add (C);
 368
 369                         for (int i = 0; i < 100; i++) {
 370                                 DataRow Row = T.NewRow ();
 371                                 Row [0] = "human" + i;
 372                                 Row [1] = i;
 373                                 Row [2] = i;
 374                                 T.Rows.Add (Row);
 375                         }
 376
 377                         try {
 378                                 T.Select ("name = human1");
 379                                 Fail ("test#01");
 380                         } catch (Exception e) {
 381
 382                                 // column name human not found
 383                                 AssertEquals ("test#02", typeof (EvaluateException), e.GetType ());
 384                         }
 385
 386                         AssertEquals ("test#04", 1, T.Select ("id = '12'").Length);
 387                         AssertEquals ("test#05", 1, T.Select ("id = 12").Length);
 388
 389                         try {
 390                                 T.Select ("id = 1k3");
 391                                 Fail ("test#06");
 392                         } catch (Exception e) {
 393
 394                                 // no operands after k3 operator
 395                                 AssertEquals ("test#07", typeof (SyntaxErrorException), e.GetType ());
 396                         }
 397                 }
 398
 399                 [Test]
 400                 public void SelectStringOperators ()
 401                 {
 402                         DataTable T = new DataTable ("test");
 403                         DataColumn C = new DataColumn ("name");
 404                         T.Columns.Add (C);
 405                         C = new DataColumn ("age");
 406                         C.DataType = typeof (int);
 407                         T.Columns.Add (C);
 408                         C = new DataColumn ("id");
 409                         T.Columns.Add (C);
 410
 411                         DataSet Set = new DataSet ("TestSet");
 412                         Set.Tables.Add (T);
 413
 414                         DataRow Row = null;
 415                         for (int i = 0; i < 100; i++) {
 416                                 Row = T.NewRow ();
 417                                 Row [0] = "human" + i;
 418                                 Row [1] = i;
 419                                 Row [2] = i;
 420                                 T.Rows.Add (Row);
 421                         }
 422                         Row = T.NewRow ();
 423                         Row [0] = "h*an";
 424                         Row [1] = 1;
 425                         Row [2] = 1;
 426                         T.Rows.Add (Row);
 427
 428                         AssertEquals ("test#01", 1, T.Select ("name = 'human' + 1").Length);
 429
 430                         AssertEquals ("test#02", "human1", T.Select ("name = 'human' + 1") [0] ["name"]);
 431                         AssertEquals ("test#03", 1, T.Select ("name = 'human' + '1'").Length);
 432                         AssertEquals ("test#04", "human1", T.Select ("name = 'human' + '1'") [0] ["name"]);
 433                         AssertEquals ("test#05", 1, T.Select ("name = 'human' + 1 + 2").Length);
 434                         AssertEquals ("test#06", "human12", T.Select ("name = 'human' + '1' + '2'") [0] ["name"]);
 435
 436                         AssertEquals ("test#07", 1, T.Select ("name = 'huMAn' + 1").Length);
 437
 438                         Set.CaseSensitive = true;
 439                         AssertEquals ("test#08", 0, T.Select ("name = 'huMAn' + 1").Length);
 440
 441                         T.CaseSensitive = false;
 442                         AssertEquals ("test#09", 1, T.Select ("name = 'huMAn' + 1").Length);
 443
 444                         T.CaseSensitive = true;
 445                         AssertEquals ("test#10", 0, T.Select ("name = 'huMAn' + 1").Length);
 446
 447                         Set.CaseSensitive = false;
 448                         AssertEquals ("test#11", 0, T.Select ("name = 'huMAn' + 1").Length);
 449
 450                         T.CaseSensitive = false;
 451                         AssertEquals ("test#12", 1, T.Select ("name = 'huMAn' + 1").Length);
 452
 453                         AssertEquals ("test#13", 0, T.Select ("name = 'human1*'").Length);
 454                         AssertEquals ("test#14", 11, T.Select ("name like 'human1*'").Length);
 455                         AssertEquals ("test#15", 11, T.Select ("name like 'human1%'").Length);
 456
 457                         try {
 458                                 AssertEquals ("test#16", 11, T.Select ("name like 'h*an1'").Length);
 459                                 Fail ("test#16");
 460                         } catch (Exception e) {
 461
 462                                 // 'h*an1' is invalid
 463                                 AssertEquals ("test#17", typeof (EvaluateException), e.GetType ());
 464                         }
 465
 466                         try {
 467                                 AssertEquals ("test#18", 11, T.Select ("name like 'h%an1'").Length);
 468                                 Fail ("test#19");
 469                         } catch (Exception e) {
 470
 471                                 // 'h%an1' is invalid
 472                                 AssertEquals ("test#20", typeof (EvaluateException), e.GetType ());
 473                         }
 474
 475                         AssertEquals ("test#21", 0, T.Select ("name like 'h[%]an'").Length);
 476                         AssertEquals ("test#22", 1, T.Select ("name like 'h[*]an'").Length);
 477
 478                 }
 479
 480                 [Test]
 481                 public void SelectAggregates ()
 482                 {
 483                         DataTable T = new DataTable ("test");
 484                         DataColumn C = new DataColumn ("name");
 485                         T.Columns.Add (C);
 486                         C = new DataColumn ("age");
 487                         C.DataType = typeof (int);
 488                         T.Columns.Add (C);
 489                         C = new DataColumn ("id");
 490                         T.Columns.Add (C);
 491                         DataRow Row = null;
 492
 493                         for (int i = 0; i < 1000; i++) {
 494                                 Row = T.NewRow ();
 495                                 Row [0] = "human" + i;
 496                                 Row [1] = i;
 497                                 Row [2] = i;
 498                                 T.Rows.Add (Row);
 499                         }
 500
 501                         AssertEquals ("test#01", 1000, T.Select ("Sum(age) > 10").Length);
 502                         AssertEquals ("test#02", 1000, T.Select ("avg(age) = 499").Length);
 503                         AssertEquals ("test#03", 1000, T.Select ("min(age) = 0").Length);
 504                         AssertEquals ("test#04", 1000, T.Select ("max(age) = 999").Length);
 505                         AssertEquals ("test#05", 1000, T.Select ("count(age) = 1000").Length);
 506                         AssertEquals ("test#06", 1000, T.Select ("stdev(age) > 287 and stdev(age) < 289").Length);
 507                         AssertEquals ("test#07", 1000, T.Select ("var(age) < 83417 and var(age) > 83416").Length);
 508                 }
 509
 510                 [Test]
 511                 public void SelectFunctions ()
 512                 {
 513                         DataTable T = new DataTable ("test");
 514                         DataColumn C = new DataColumn ("name");
 515                         T.Columns.Add (C);
 516                         C = new DataColumn ("age");
 517                         C.DataType = typeof (int);
 518                         T.Columns.Add (C);
 519                         C = new DataColumn ("id");
 520                         T.Columns.Add (C);
 521                         DataRow Row = null;
 522
 523                         for (int i = 0; i < 1000; i++) {
 524                                 Row = T.NewRow ();
 525                                 Row [0] = "human" + i;
 526                                 Row [1] = i;
 527                                 Row [2] = i;
 528                                 T.Rows.Add (Row);
 529                         }
 530
 531                         Row = T.NewRow ();
 532                         Row [0] = "human" + "test";
 533                         Row [1] = DBNull.Value;
 534                         Row [2] = DBNull.Value;
 535                         T.Rows.Add (Row);
 536
 537                         //TODO: How to test Convert-function
 538                         AssertEquals ("test#01", 25, T.Select ("age = 5*5") [0]["age"]);
 539                         AssertEquals ("test#02", 901, T.Select ("len(name) > 7").Length);
 540                         AssertEquals ("test#03", 125, T.Select ("age = 5*5*5 AND len(name)>7") [0]["age"]);
 541                         AssertEquals ("test#04", 1, T.Select ("isnull(id, 'test') = 'test'").Length);
 542                         AssertEquals ("test#05", 1000, T.Select ("iif(id = '56', 'test', 'false') = 'false'").Length);
 543                         AssertEquals ("test#06", 1, T.Select ("iif(id = '56', 'test', 'false') = 'test'").Length);
 544                         AssertEquals ("test#07", 9, T.Select ("substring(id, 2, 3) = '23'").Length);
 545                         AssertEquals ("test#08", "123", T.Select ("substring(id, 2, 3) = '23'") [0] ["id"]);
 546                         AssertEquals ("test#09", "423", T.Select ("substring(id, 2, 3) = '23'") [3] ["id"]);
 547                         AssertEquals ("test#10", "923", T.Select ("substring(id, 2, 3) = '23'") [8] ["id"]);
 548
 549                 }
 550
 551                 [Test]
 552                 public void SelectRelations ()
 553                 {
 554                         DataSet Set = new DataSet ();
 555                         DataTable Mom = new DataTable ("Mom");
 556                         DataTable Child = new DataTable ("Child");
 557
 558                         Set.Tables.Add (Mom);
 559                         Set.Tables.Add (Child);
 560
 561                         DataColumn Col = new DataColumn ("Name");
 562                         DataColumn Col2 = new DataColumn ("ChildName");
 563                         Mom.Columns.Add (Col);
 564                         Mom.Columns.Add (Col2);
 565
 566                         DataColumn Col3 = new DataColumn ("Name");
 567                         DataColumn Col4 = new DataColumn ("Age");
 568                         Col4.DataType = Type.GetType ("System.Int16");
 569                         Child.Columns.Add (Col3);
 570                         Child.Columns.Add (Col4);
 571
 572                         DataRelation Relation = new DataRelation ("Rel", Mom.Columns [1], Child.Columns [0]);
 573                         Set.Relations.Add (Relation);
 574
 575                         DataRow Row = Mom.NewRow ();
 576                         Row [0] = "Laura";
 577                         Row [1] = "Nick";
 578                         Mom.Rows.Add (Row);
 579
 580                         Row = Mom.NewRow ();
 581                         Row [0] = "Laura";
 582                         Row [1] = "Dick";
 583                         Mom.Rows.Add (Row);
 584
 585                         Row = Mom.NewRow ();
 586                         Row [0] = "Laura";
 587                         Row [1] = "Mick";
 588                         Mom.Rows.Add (Row);
 589
 590                         Row = Mom.NewRow ();
 591                         Row [0] = "Teresa";
 592                         Row [1] = "Jack";
 593                         Mom.Rows.Add (Row);
 594
 595                         Row = Mom.NewRow ();
 596                         Row [0] = "Teresa";
 597                         Row [1] = "Mack";
 598                         Mom.Rows.Add (Row);
 599
 600                         Row = Child.NewRow ();
 601                         Row [0] = "Nick";
 602                         Row [1] = 15;
 603                         Child.Rows.Add (Row);
 604
 605                         Row = Child.NewRow ();
 606                         Row [0] = "Dick";
 607                         Row [1] = 25;
 608                         Child.Rows.Add (Row);
 609
 610                         Row = Child.NewRow ();
 611                         Row [0] = "Mick";
 612                         Row [1] = 35;
 613                         Child.Rows.Add (Row);
 614
 615                         Row = Child.NewRow ();
 616                         Row [0] = "Jack";
 617                         Row [1] = 10;
 618                         Child.Rows.Add (Row);
 619
 620                         Row = Child.NewRow ();
 621                         Row [0] = "Mack";
 622                         Row [1] = 19;
 623                         Child.Rows.Add (Row);
 624
 625                         Row = Child.NewRow ();
 626                         Row [0] = "Mack";
 627                         Row [1] = 99;
 628                         Child.Rows.Add (Row);
 629
 630                         DataRow [] Rows = Child.Select ("name = Parent.Childname");
 631                         AssertEquals ("test#01", 6, Rows.Length);
 632                         Rows = Child.Select ("Parent.childname = 'Jack'");
 633                         AssertEquals ("test#02", 1, Rows.Length);
 634
 635                         /*
 636                         try {
 637                                 // FIXME: LAMESPEC: Why the exception is thrown why... why...
 638                                 Mom.Select ("Child.Name = 'Jack'");
 639                                 Fail ("test#03");
 640                         } catch (Exception e) {
 641                                 AssertEquals ("test#04", typeof (SyntaxErrorException), e.GetType ());
 642                                 AssertEquals ("test#05", "Cannot interpret token 'Child' at position 1.", e.Message);
 643                         }
 644                         */
 645
 646                         Rows = Child.Select ("Parent.name = 'Laura'");
 647                         AssertEquals ("test#06", 3, Rows.Length);
 648
 649                         DataTable Parent2 = new DataTable ("Parent2");
 650                         Col = new DataColumn ("Name");
 651                         Col2 = new DataColumn ("ChildName");
 652
 653                         Parent2.Columns.Add (Col);
 654                         Parent2.Columns.Add (Col2);
 655                         Set.Tables.Add (Parent2);
 656
 657                         Row = Parent2.NewRow ();
 658                         Row [0] = "Laura";
 659                         Row [1] = "Nick";
 660                         Parent2.Rows.Add (Row);
 661
 662                         Row = Parent2.NewRow ();
 663                         Row [0] = "Laura";
 664                         Row [1] = "Dick";
 665                         Parent2.Rows.Add (Row);
 666
 667                         Row = Parent2.NewRow ();
 668                         Row [0] = "Laura";
 669                         Row [1] = "Mick";
 670                         Parent2.Rows.Add (Row);
 671
 672                         Row = Parent2.NewRow ();
 673                         Row [0] = "Teresa";
 674                         Row [1] = "Jack";
 675                         Parent2.Rows.Add (Row);
 676
 677                         Row = Parent2.NewRow ();
 678                         Row [0] = "Teresa";
 679                         Row [1] = "Mack";
 680                         Parent2.Rows.Add (Row);
 681
 682                         Relation = new DataRelation ("Rel2", Parent2.Columns [1], Child.Columns [0]);
 683                         Set.Relations.Add (Relation);
 684
 685                         try {
 686                                 Rows = Child.Select ("Parent.ChildName = 'Jack'");
 687                                 Fail ("test#07");
 688                         } catch (Exception e) {
 689                                 AssertEquals ("test#08", typeof (EvaluateException), e.GetType ());
 690                                 //AssertEquals ("test#09", "The table [Child] involved in more than one relation. You must explicitly mention a relation name in the expression 'parent.[ChildName]'.", e.Message);
 691                         }
 692
 693                         Rows = Child.Select ("Parent(rel).ChildName = 'Jack'");
 694                         AssertEquals ("test#10", 1, Rows.Length);
 695
 696                         Rows = Child.Select ("Parent(Rel2).ChildName = 'Jack'");
 697                         AssertEquals ("test#10", 1, Rows.Length);
 698
 699                         try {
 700                                 Mom.Select ("Parent.name  = 'John'");
 701                         } catch (Exception e) {
 702                                 AssertEquals ("test#11", typeof (IndexOutOfRangeException), e.GetType ());
 703                                 AssertEquals ("test#12", "Cannot find relation 0.", e.Message);
 704                         }
 705
 706                 }
 707
 708                 [Test]
 709                 public void ToStringTest()
 710                 {
 711                         DataTable dt = new DataTable();
 712                         dt.Columns.Add("Col1",typeof(int));
 713
 714                         dt.TableName = "Mytable";
 715                         dt.DisplayExpression = "Col1";
 716
 717
 718                         string cmpr = dt.TableName + " + " + dt.DisplayExpression;
 719                         AssertEquals(cmpr,dt.ToString());
 720                 }
 721
 722                 [Test]
 723                 public void PrimaryKey ()
 724                 {
 725                         DataTable dt = new DataTable ();
 726                         DataColumn Col = new DataColumn ();
 727                         Col.AllowDBNull = false;
 728                         Col.DataType = typeof (int);
 729                         dt.Columns.Add (Col);
 730                         dt.Columns.Add ();
 731                         dt.Columns.Add ();
 732                         dt.Columns.Add ();
 733
 734                         AssertEquals ("test#01", 0, dt.PrimaryKey.Length);
 735
 736                         dt.PrimaryKey = new DataColumn [] {dt.Columns [0]};
 737                         AssertEquals ("test#02", 1, dt.PrimaryKey.Length);
 738                         AssertEquals ("test#03", "Column1", dt.PrimaryKey [0].ColumnName);
 739
 740                         dt.PrimaryKey = null;
 741                         AssertEquals ("test#04", 0, dt.PrimaryKey.Length);
 742
 743                         Col = new DataColumn ("failed");
 744
 745                         try {
 746                                 dt.PrimaryKey = new DataColumn [] {Col};
 747                                 Fail ("test#05");
 748                         } catch (Exception e) {
 749                                 AssertEquals ("test#06", typeof (ArgumentException), e.GetType ());
 750                                 AssertEquals ("test#07", "Column must belong to a table.", e.Message);
 751                         }
 752
 753                         DataTable dt2 = new DataTable ();
 754                         dt2.Columns.Add ();
 755
 756                         try {
 757                                 dt.PrimaryKey = new DataColumn [] {dt2.Columns [0]};
 758                                 Fail ("test#08");
 759                         } catch (Exception e) {
 760                                 AssertEquals ("test#09", typeof (ArgumentException), e.GetType ());
 761                                 AssertEquals ("test#10", "PrimaryKey columns do not belong to this table.", e.Message);
 762                         }
 763
 764
 765                         AssertEquals ("test#11", 0, dt.Constraints.Count);
 766
 767                         dt.PrimaryKey = new DataColumn [] {dt.Columns [0], dt.Columns [1]};
 768                         AssertEquals ("test#12", 2, dt.PrimaryKey.Length);
 769                         AssertEquals ("test#13", 1, dt.Constraints.Count);
 770                         AssertEquals ("test#14", true, dt.Constraints [0] is UniqueConstraint);
 771                         AssertEquals ("test#15", "Column1", dt.PrimaryKey [0].ColumnName);
 772                         AssertEquals ("test#16", "Column2", dt.PrimaryKey [1].ColumnName);
 773
 774                 }
 775
 776                 [Test]
 777                 public void PropertyExceptions ()
 778                 {
 779                         DataSet set = new DataSet ();
 780                         DataTable table = new DataTable ();
 781                         DataTable table1 =  new DataTable ();
 782                         set.Tables.Add (table);
 783                         set.Tables.Add (table1);
 784
 785                         DataColumn col = new DataColumn ();
 786                         col.ColumnName = "Id";
 787                         col.DataType = Type.GetType ("System.Int32");
 788                         table.Columns.Add (col);
 789                         UniqueConstraint uc = new UniqueConstraint ("UK1", table.Columns[0] );
 790                         table.Constraints.Add (uc);
 791                         table.CaseSensitive = false;
 792
 793                         col = new DataColumn ();
 794                         col.ColumnName = "Name";
 795                         col.DataType = Type.GetType ("System.String");
 796                         table.Columns.Add (col);
 797
 798                         col = new DataColumn ();
 799                         col.ColumnName = "Id";
 800                         col.DataType = Type.GetType ("System.Int32");
 801                         table1.Columns.Add (col);
 802                         col = new DataColumn ();
 803                         col.ColumnName = "Name";
 804                         col.DataType = Type.GetType ("System.String");
 805                         table1.Columns.Add (col);
 806
 807                         DataRelation dr = new DataRelation ("DR", table.Columns[0], table1.Columns[0]);
 808                         set.Relations.Add (dr);
 809
 810                         try {
 811                                 table.CaseSensitive = true;
 812                                 table1.CaseSensitive = true;
 813                                 Fail ("#A01");
 814                         }
 815                         catch (Exception e) {
 816                                 if (e.GetType () != typeof (AssertionException))
 817                                         AssertEquals ("#A02", "Cannot change CaseSensitive or Locale property. This change would lead to at least one DataRelation or Constraint to have different Locale or CaseSensitive settings between its related tables.",e.Message);
 818                                 else
 819                                         Console.WriteLine (e);
 820                         }
 821                         try {
 822                                 CultureInfo cultureInfo = new CultureInfo ("en-gb");
 823                                 table.Locale = cultureInfo;
 824                                 table1.Locale = cultureInfo;
 825                                 Fail ("#A03");
 826                         }
 827                         catch (Exception e) {
 828                                  if (e.GetType () != typeof (AssertionException))
 829                                         AssertEquals ("#A04", "Cannot change CaseSensitive or Locale property. This change would lead to at least one DataRelation or Constraint to have different Locale or CaseSensitive settings between its related tables.",e.Message);
 830                                 else
 831                                         Console.WriteLine (e);
 832                         }
 833                         try {
 834                                 table.Prefix = "Prefix#1";
 835                                 Fail ("#A05");
 836                         }
 837                         catch (Exception e){
 838                                 if (e.GetType () != typeof (AssertionException))
 839                                         AssertEquals ("#A06", "Prefix 'Prefix#1' is not valid, because it contains special characters.",e.Message);
 840                                 else
 841                                         Console.WriteLine (e);
 842
 843                         }
 844                 }
 845
 846                 [Test]
 847                 public void GetErrors ()
 848                 {
 849                         DataTable table = new DataTable ();
 850
 851                         DataColumn col = new DataColumn ();
 852                         col.ColumnName = "Id";
 853                         col.DataType = Type.GetType ("System.Int32");
 854                         table.Columns.Add (col);
 855
 856                         col = new DataColumn ();
 857                         col.ColumnName = "Name";
 858                         col.DataType = Type.GetType ("System.String");
 859                         table.Columns.Add (col);
 860
 861                         DataRow row = table.NewRow ();
 862                         row ["Id"] = 147;
 863                         row ["name"] = "Abc";
 864                         row.RowError = "Error#1";
 865                         table.Rows.Add (row);
 866
 867                         AssertEquals ("#A01", 1, table.GetErrors ().Length);
 868                         AssertEquals ("#A02", "Error#1", (table.GetErrors ())[0].RowError);
 869                 }
 870                 [Test]
 871                 public void CloneCopyTest ()
 872                 {
 873                         DataTable table = new DataTable ();
 874                         table.TableName = "Table#1";
 875                         DataTable table1 = new DataTable ();
 876                         table1.TableName = "Table#2";
 877
 878                         table.AcceptChanges ();
 879
 880                         DataSet set = new DataSet ("Data Set#1");
 881                         set.DataSetName = "Dataset#1";
 882                         set.Tables.Add (table);
 883                         set.Tables.Add (table1);
 884
 885                         DataColumn col = new DataColumn ();
 886                         col.ColumnName = "Id";
 887                         col.DataType = Type.GetType ("System.Int32");
 888                         table.Columns.Add (col);
 889                         UniqueConstraint uc = new UniqueConstraint ("UK1", table.Columns[0] );
 890                         table.Constraints.Add (uc);
 891
 892                         col = new DataColumn ();
 893                         col.ColumnName = "Id";
 894                         col.DataType = Type.GetType ("System.Int32");
 895                         table1.Columns.Add (col);
 896
 897                         col = new DataColumn ();
 898                         col.ColumnName = "Name";
 899                         col.DataType = Type.GetType ("System.String");
 900                         table.Columns.Add (col);
 901
 902                         col = new DataColumn ();
 903                         col.ColumnName = "Name";
 904                         col.DataType = Type.GetType ("System.String");
 905                         table1.Columns.Add (col);
 906                         DataRow row = table.NewRow ();
 907                         row ["Id"] = 147;
 908                         row ["name"] = "Abc";
 909                         row.RowError = "Error#1";
 910                         table.Rows.Add (row);
 911
 912                         row = table.NewRow ();
 913                         row ["Id"] = 47;
 914                         row ["name"] = "Efg";
 915                         table.Rows.Add (row);
 916                         table.AcceptChanges ();
 917
 918                         table.CaseSensitive = true;
 919                         table1.CaseSensitive = true;
 920                         table.MinimumCapacity = 100;
 921                         table.Prefix = "PrefixNo:1";
 922                         table.Namespace = "Namespace#1";
 923                         table.DisplayExpression = "Id / Name + (Id * Id)";
 924                         DataColumn[] colArray = {table.Columns[0]};
 925                         table.PrimaryKey = colArray;
 926                         table.ExtendedProperties.Add ("TimeStamp", DateTime.Now);
 927 #if NET_1_1 // This prevents further tests after .NET 1.1.
 928 #else
 929                         CultureInfo cultureInfo = new CultureInfo ("en-gb");
 930                         table.Locale = cultureInfo;
 931 #endif
 932
 933                         row = table1.NewRow ();
 934                         row ["Name"] = "Abc";
 935                         row ["Id"] = 147;
 936                         table1.Rows.Add (row);
 937
 938                         row = table1.NewRow ();
 939                         row ["Id"] = 47;
 940                         row ["Name"] = "Efg";
 941                         table1.Rows.Add (row);
 942
 943                         DataRelation dr = new DataRelation ("DR", table.Columns[0], table1.Columns[0]);
 944                         set.Relations.Add (dr);
 945
 946                         //Testing properties of clone
 947                         DataTable cloneTable = table.Clone ();
 948                         AssertEquals ("#A01",true ,cloneTable.CaseSensitive);
 949                         AssertEquals ("#A02", 0 , cloneTable.ChildRelations.Count);
 950                         AssertEquals ("#A03", 0 , cloneTable.ParentRelations.Count);
 951                         AssertEquals ("#A04", 2,  cloneTable.Columns.Count);
 952                         AssertEquals ("#A05", 1, cloneTable.Constraints.Count);
 953                         AssertEquals ("#A06", "Id / Name + (Id * Id)", cloneTable.DisplayExpression);
 954                         AssertEquals ("#A07", 1 ,cloneTable.ExtendedProperties.Count);
 955                         AssertEquals ("#A08", false ,cloneTable.HasErrors);
 956 #if NET_1_1
 957 #else
 958                         AssertEquals ("#A09", 2057, cloneTable.Locale.LCID);
 959 #endif
 960                         AssertEquals ("#A10", 100, cloneTable.MinimumCapacity);
 961                         AssertEquals ("#A11","Namespace#1", cloneTable.Namespace);
 962                         AssertEquals ("#A12", "PrefixNo:1",cloneTable.Prefix);
 963                         AssertEquals ("#A13", "Id",  cloneTable.PrimaryKey[0].ColumnName);
 964                         AssertEquals ("#A14",0 , cloneTable.Rows.Count );
 965                         AssertEquals ("#A15", "Table#1", cloneTable.TableName);
 966
 967                         //Testing properties of copy
 968                         DataTable copyTable = table.Copy ();
 969                         AssertEquals ("#A16",true ,copyTable.CaseSensitive);
 970                         AssertEquals ("#A17", 0 , copyTable.ChildRelations.Count);
 971                         AssertEquals ("#A18", 0 , copyTable.ParentRelations.Count);
 972                         AssertEquals ("#A19", 2,  copyTable.Columns.Count);
 973                         AssertEquals ("#A20", 1, copyTable.Constraints.Count);
 974                         AssertEquals ("#A21", "Id / Name + (Id * Id)", copyTable.DisplayExpression);
 975                         AssertEquals ("#A22", 1 ,copyTable.ExtendedProperties.Count);
 976                         AssertEquals ("#A23", true ,copyTable.HasErrors);
 977 #if NET_1_1
 978 #else
 979                         AssertEquals ("#A24", 2057, copyTable.Locale.LCID);
 980 #endif
 981                         AssertEquals ("#A25", 100, copyTable.MinimumCapacity);
 982                         AssertEquals ("#A26","Namespace#1", copyTable.Namespace);
 983                         AssertEquals ("#A27", "PrefixNo:1",copyTable.Prefix);
 984                         AssertEquals ("#A28", "Id",  copyTable.PrimaryKey[0].ColumnName);
 985                         AssertEquals ("#A29", 2 , copyTable.Rows.Count );
 986                         AssertEquals ("#A30", "Table#1", copyTable.TableName);
 987                 }
 988
 989                 [Test]
 990                 public void LoadDataException ()
 991                 {
 992                         DataTable table = new DataTable ();
 993                         DataColumn col = new DataColumn ();
 994                         col.ColumnName = "Id";
 995                         col.DataType = Type.GetType ("System.Int32");
 996                         col.DefaultValue = 47;
 997                         table.Columns.Add (col);
 998                         UniqueConstraint uc = new UniqueConstraint ("UK1", table.Columns[0] );
 999                         table.Constraints.Add (uc);
1000
1001                         col = new DataColumn ();
1002                         col.ColumnName = "Name";
1003                         col.DataType = Type.GetType ("System.String");
1004                         col.DefaultValue = "Hello";
1005                         table.Columns.Add (col);
1006
1007                         table.BeginLoadData();
1008                         object[] row = {147, "Abc"};
1009                         DataRow newRow = table.LoadDataRow (row, true);
1010
1011                         object[] row1 = {147, "Efg"};
1012                         DataRow newRow1 = table.LoadDataRow (row1, true);
1013
1014                         object[] row2 = {143, "Hij"};
1015                         DataRow newRow2 = table.LoadDataRow (row2, true);
1016
1017                         try {
1018                                 table.EndLoadData ();
1019                                 Fail ("#A01");
1020                         }
1021                         catch (ConstraintException) {
1022                         }
1023                 }
1024                 [Test]
1025                 public void Changes () //To test GetChanges and RejectChanges
1026                 {
1027                         DataTable table = new DataTable ();
1028
1029                         DataColumn col = new DataColumn ();
1030                         col.ColumnName = "Id";
1031                         col.DataType = Type.GetType ("System.Int32");
1032                         table.Columns.Add (col);
1033                         UniqueConstraint uc = new UniqueConstraint ("UK1", table.Columns[0] );
1034                         table.Constraints.Add (uc);
1035
1036                         col = new DataColumn ();
1037                         col.ColumnName = "Name";
1038                         col.DataType = Type.GetType ("System.String");
1039                         table.Columns.Add (col);
1040
1041                         DataRow row = table.NewRow ();
1042                         row ["Id"] = 147;
1043                         row ["name"] = "Abc";
1044                         table.Rows.Add (row);
1045                         table.AcceptChanges ();
1046
1047                         row = table.NewRow ();
1048                         row ["Id"] = 47;
1049                         row ["name"] = "Efg";
1050                         table.Rows.Add (row);
1051
1052                         //Testing GetChanges
1053                         DataTable changesTable = table.GetChanges ();
1054                         AssertEquals ("#A01", 1 ,changesTable.Rows.Count);
1055                         AssertEquals ("#A02","Efg" ,changesTable.Rows[0]["Name"]);
1056                         table.AcceptChanges ();
1057                         changesTable = table.GetChanges ();
1058                         try {
1059                                 int cnt = changesTable.Rows.Count;
1060                         }
1061                         catch(Exception e) {
1062                                 if (e.GetType () != typeof (AssertionException))
1063                                         AssertEquals ("#A03",typeof(NullReferenceException) ,e.GetType ());
1064                                 else
1065                                         Console.WriteLine (e);
1066                         }
1067
1068                         //Testing RejectChanges
1069                         row = table.NewRow ();
1070                         row ["Id"] = 247;
1071                         row ["name"] = "Hij";
1072                         table.Rows.Add (row);
1073
1074                         (table.Rows [0])["Name"] = "AaBbCc";
1075                         table.RejectChanges ();
1076                         AssertEquals ("#A03", "Abc" , (table.Rows [0]) ["Name"]);
1077                         AssertEquals ("#A04", 2, table.Rows.Count);
1078                 }
1079                 [Test]
1080                 public void ImportRow ()
1081                 {
1082                         DataTable table = new DataTable ();
1083                         DataColumn col = new DataColumn ();
1084                         col.ColumnName = "Id";
1085                         col.DataType = Type.GetType ("System.Int32");
1086                         table.Columns.Add (col);
1087
1088                         col = new DataColumn ();
1089                         col.ColumnName = "Name";
1090                         col.DataType = Type.GetType ("System.String");
1091                         table.Columns.Add (col);
1092
1093                         DataRow row = table.NewRow ();
1094                         row ["Id"] = 147;
1095                         row ["name"] = "Abc";
1096                         table.Rows.Add (row);
1097                         table.AcceptChanges ();
1098
1099                         row = table.NewRow ();
1100                         row ["Id"] = 47;
1101                         row ["name"] = "Efg";
1102                         table.Rows.Add (row);
1103
1104                         (table.Rows [0]) ["Name"] = "AaBbCc";
1105
1106                         table.ImportRow (table.Rows [0]);
1107                         table.ImportRow (table.Rows [1]);
1108
1109                         AssertEquals ("#A01", 147, table.Rows [2]["Id"]);
1110                         AssertEquals ("#A02", 47, table.Rows [3]["Id"]);
1111                         AssertEquals ("#A03", DataRowState.Modified, table.Rows [2].RowState);
1112                         AssertEquals ("#A04", DataRowState.Added, table.Rows [3].RowState);
1113                 }
1114
1115                 [Test]
1116                 public void ImportRowDetachedTest ()
1117                 {
1118                         DataTable table = new DataTable ();
1119                         DataColumn col = new DataColumn ();
1120                         col.ColumnName = "Id";
1121                         col.DataType = Type.GetType ("System.Int32");
1122                         table.Columns.Add (col);
1123
1124                         table.PrimaryKey = new DataColumn [] {col};
1125
1126                         col = new DataColumn ();
1127                         col.ColumnName = "Name";
1128                         col.DataType = Type.GetType ("System.String");
1129                         table.Columns.Add (col);
1130
1131                         DataRow row = table.NewRow ();
1132                         row ["Id"] = 147;
1133                         row ["name"] = "Abc";
1134
1135                         // keep silent as ms.net ;-), though this is not useful.
1136                         table.ImportRow (row);
1137                 }
1138
1139                 [Test]
1140                 public void ClearReset () //To test Clear and Reset methods
1141                 {
1142                         DataTable table = new DataTable ("table");
1143                         DataTable table1 = new DataTable ("table1");
1144
1145                         DataSet set = new DataSet ();
1146                         set.Tables.Add (table);
1147                         set.Tables.Add (table1);
1148
1149                         DataColumn col = new DataColumn ();
1150                         col.ColumnName = "Id";
1151                         col.DataType = Type.GetType ("System.Int32");
1152                         table.Columns.Add (col);
1153                         UniqueConstraint uc = new UniqueConstraint ("UK1", table.Columns[0] );
1154                         table.Constraints.Add (uc);
1155                         table.CaseSensitive = false;
1156
1157                         col = new DataColumn ();
1158                         col.ColumnName = "Name";
1159                         col.DataType = Type.GetType ("System.String");
1160                         table.Columns.Add (col);
1161
1162                         col = new DataColumn ();
1163                         col.ColumnName = "Id";
1164                         col.DataType = Type.GetType ("System.Int32");
1165                         table1.Columns.Add (col);
1166
1167                         col = new DataColumn ();
1168                         col.ColumnName = "Name";
1169                         col.DataType = Type.GetType ("System.String");
1170                         table1.Columns.Add (col);
1171
1172                         DataRelation dr = new DataRelation ("DR", table.Columns[0], table1.Columns[0]);
1173                         set.Relations.Add (dr);
1174
1175                         DataRow row = table.NewRow ();
1176                         row ["Id"] = 147;
1177                         row ["name"] = "Roopa";
1178                         table.Rows.Add (row);
1179
1180                         row = table.NewRow ();
1181                         row ["Id"] = 47;
1182                         row ["Name"] = "roopa";
1183                         table.Rows.Add (row);
1184
1185                         AssertEquals (2, table.Rows.Count);
1186                         AssertEquals (1, table.ChildRelations.Count);
1187                         try {
1188                                 table.Reset ();
1189                                 Fail ("#A01, should have thrown ArgumentException");
1190                         }
1191                         catch (ArgumentException) {
1192                         }
1193                         AssertEquals ("#CT01", 0, table.Rows.Count);
1194                         AssertEquals ("#CT02", 0, table.ChildRelations.Count);
1195                         AssertEquals ("#CT03", 0, table.ParentRelations.Count);
1196                         AssertEquals ("#CT04", 0, table.Constraints.Count);
1197                         table.Clear ();
1198
1199                         table1.Reset ();
1200                         AssertEquals ("#A05", 0, table1.Rows.Count);
1201                         AssertEquals ("#A06", 0, table1.Constraints.Count);
1202                         AssertEquals ("#A07", 0, table1.ParentRelations.Count);
1203
1204                         table.Clear ();
1205                         AssertEquals ("#A08", 0, table.Rows.Count);
1206 #if NET_1_1
1207                         AssertEquals ("#A09", 0, table.Constraints.Count);
1208 #else
1209                         AssertEquals ("#A09", 1, table.Constraints.Count);
1210 #endif
1211                         AssertEquals ("#A10", 0, table.ChildRelations.Count);
1212                 }
1213
1214                 [Test]
1215                 public void Serialize ()
1216                 {
1217                         MemoryStream fs = new MemoryStream ();
1218
1219                         // Construct a BinaryFormatter and use it
1220                         // to serialize the data to the stream.
1221                         BinaryFormatter formatter = new BinaryFormatter();
1222
1223                         // Create an array with multiple elements refering to
1224                         // the one Singleton object.
1225                         DataTable dt = new DataTable();
1226
1227
1228                         dt.Columns.Add(new DataColumn("Id", typeof(string)));
1229                         dt.Columns.Add(new DataColumn("ContactName", typeof(string)));
1230                         dt.Columns.Add(new DataColumn("ContactTitle", typeof(string)));
1231                         dt.Columns.Add(new DataColumn("ContactAreaCode", typeof(string)));
1232                         dt.Columns.Add(new DataColumn("ContactPhone", typeof(string)));
1233
1234                         DataRow loRowToAdd;
1235                         loRowToAdd = dt.NewRow();
1236                         loRowToAdd[0] = "a";
1237                         loRowToAdd[1] = "b";
1238                         loRowToAdd[2] = "c";
1239                         loRowToAdd[3] = "d";
1240                         loRowToAdd[4] = "e";
1241
1242                         dt.Rows.Add(loRowToAdd);
1243
1244                         DataTable[] dtarr = new DataTable[] {dt};
1245
1246                         // Serialize the array elements.
1247                         formatter.Serialize(fs, dtarr);
1248
1249                         // Deserialize the array elements.
1250                         fs.Position = 0;
1251                         DataTable[] a2 = (DataTable[]) formatter.Deserialize(fs);
1252
1253                         DataSet ds = new DataSet();
1254                         ds.Tables.Add(a2[0]);
1255
1256                         StringWriter sw = new StringWriter ();
1257                         ds.WriteXml(sw);
1258                         XmlDocument doc = new XmlDocument ();
1259                         doc.LoadXml (sw.ToString ());
1260                         AssertEquals (5, doc.DocumentElement.FirstChild.ChildNodes.Count);
1261                 }
1262
1263                 [Test]
1264                 [ExpectedException (typeof (DataException))]
1265                 [NUnit.Framework.Category ("NotWorking")]
1266                 public void SetPrimaryKeyAssertsNonNull ()
1267                 {
1268                         DataTable dt = new DataTable ("table");
1269                         dt.Columns.Add ("col1");
1270                         dt.Columns.Add ("col2");
1271                         dt.Constraints.Add (new UniqueConstraint (dt.Columns [0]));
1272                         dt.Rows.Add (new object [] {1, 3});
1273                         dt.Rows.Add (new object [] {DBNull.Value, 3});
1274
1275                         dt.PrimaryKey = new DataColumn [] {dt.Columns [0]};
1276                 }
1277
1278                 [Test]
1279                 [ExpectedException (typeof (NoNullAllowedException))]
1280                 public void PrimaryKeyColumnChecksNonNull ()
1281                 {
1282                         DataTable dt = new DataTable ("table");
1283                         dt.Columns.Add ("col1");
1284                         dt.Columns.Add ("col2");
1285                         dt.Constraints.Add (new UniqueConstraint (dt.Columns [0]));
1286                         dt.PrimaryKey = new DataColumn [] {dt.Columns [0]};
1287                         dt.Rows.Add (new object [] {1, 3});
1288                         dt.Rows.Add (new object [] {DBNull.Value, 3});
1289                 }
1290
1291                 void RowChanging (object o, DataRowChangeEventArgs e)
1292                 {
1293                         AssertEquals ("changing.Action", rowChangingExpectedAction, e.Action);
1294                         rowChangingRowChanging = true;
1295                 }
1296
1297                 void RowChanged (object o, DataRowChangeEventArgs e)
1298                 {
1299                         AssertEquals ("changed.Action", rowChangingExpectedAction, e.Action);
1300                         rowChangingRowChanged = true;
1301                 }
1302
1303                 bool rowChangingRowChanging, rowChangingRowChanged;
1304                 DataRowAction rowChangingExpectedAction;
1305
1306                 [Test]
1307                 public void RowChanging ()
1308                 {
1309                         DataTable dt = new DataTable ("table");
1310                         dt.Columns.Add ("col1");
1311                         dt.Columns.Add ("col2");
1312                         dt.RowChanging += new DataRowChangeEventHandler (RowChanging);
1313                         dt.RowChanged += new DataRowChangeEventHandler (RowChanged);
1314                         rowChangingExpectedAction = DataRowAction.Add;
1315                         dt.Rows.Add (new object [] {1, 2});
1316                         Assert ("changing,Added", rowChangingRowChanging);
1317                         Assert ("changed,Added", rowChangingRowChanged);
1318                         rowChangingExpectedAction = DataRowAction.Change;
1319                         dt.Rows [0] [0] = 2;
1320                         Assert ("changing,Changed", rowChangingRowChanging);
1321                         Assert ("changed,Changed", rowChangingRowChanged);
1322                 }
1323
1324                  [Test]
1325                 public void CloneSubClassTest()
1326                 {
1327                         MyDataTable dt1 = new MyDataTable();
1328                         MyDataTable dt = (MyDataTable)(dt1.Clone());
1329                         AssertEquals("A#01",2,MyDataTable.count);
1330                 }
1331
1332         }
1333
1334
1335          public  class MyDataTable:DataTable {
1336
1337              public static int count = 0;
1338
1339              public MyDataTable() {
1340
1341                     count++;
1342              }
1343
1344          }
1345
1346
1347 }