mcs/class/System.Core/Test/System.Linq/ParallelEnumerableTests.cs

   1 // ParallelEnumerableTests.cs
   2 //
   3 // Copyright (c) 2008 Jérémie "Garuma" Laval
   4 //
   5 // Based on Enumerable test suite by Jb Evain (jbevain@novell.com)
   6 //
   7 // Permission is hereby granted, free of charge, to any person obtaining a copy
   8 // of this software and associated documentation files (the "Software"), to deal
   9 // in the Software without restriction, including without limitation the rights
  10 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 // copies of the Software, and to permit persons to whom the Software is
  12 // furnished to do so, subject to the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be included in
  15 // all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23 // THE SOFTWARE.
  24 //
  25 //
  26
  27 #if NET_4_0
  28
  29 using System;
  30 using System.Threading;
  31 using System.Linq;
  32
  33 using System.Collections;
  34 using System.Collections.Generic;
  35
  36 using NUnit.Framework;
  37
  38 namespace MonoTests.System.Linq
  39 {
  40         [TestFixtureAttribute]
  41         public class ParallelEnumerableTests
  42         {
  43                 IEnumerable<int> baseEnumerable;
  44
  45                 [SetUpAttribute]
  46                 public void Setup ()
  47                 {
  48                         baseEnumerable = Enumerable.Range(1, 10000);
  49                 }
  50
  51                 void AreEquivalent (IEnumerable<int> syncEnumerable, IEnumerable<int> asyncEnumerable, int count)
  52                 {
  53                         int[] sync  = Enumerable.ToArray(syncEnumerable);
  54                         int[] async = Enumerable.ToArray(asyncEnumerable);
  55
  56                         // This is not AreEquals because ParallelQuery is non-deterministic (IParallelOrderedEnumerable is)
  57                         // thus the order of the initial Enumerable might not be preserved
  58                         CollectionAssert.AreEquivalent(sync, async, "#" + count);
  59                 }
  60
  61                 void AreEquivalent<T> (IEnumerable<T> syncEnumerable, IEnumerable<T> asyncEnumerable, int count)
  62                 {
  63                         T[] sync  = Enumerable.ToArray(syncEnumerable);
  64                         T[] async = Enumerable.ToArray(asyncEnumerable);
  65
  66                         // This is not AreEquals because ParallelQuery is non-deterministic (IParallelOrderedEnumerable is)
  67                         // thus the order of the initial Enumerable might not be preserved
  68                         CollectionAssert.AreEquivalent(sync, async, "#" + count);
  69                 }
  70
  71                 static void AssertAreSame<T> (IEnumerable<T> expected, IEnumerable<T> actual)
  72                 {
  73                         if (expected == null) {
  74                                 Assert.IsNull (actual);
  75                                 return;
  76                         }
  77
  78                         Assert.IsNotNull (actual);
  79
  80                         IEnumerator<T> ee = expected.GetEnumerator ();
  81                         IEnumerator<T> ea = actual.GetEnumerator ();
  82
  83                         while (ee.MoveNext ()) {
  84                                 Assert.IsTrue (ea.MoveNext (), "'" + ee.Current + "' expected.");
  85                                 Assert.AreEqual (ee.Current, ea.Current);
  86                         }
  87
  88                         if (ea.MoveNext ())
  89                                 Assert.Fail ("Unexpected element: " + ea.Current);
  90                 }
  91
  92                 public static void AssertException<T> (Action action) where T : Exception
  93                 {
  94                         try {
  95                                 action ();
  96                         }
  97                         catch (T) {
  98                                 return;
  99                         }
 100                         Assert.Fail ("Expected: " + typeof (T).Name);
 101                 }
 102
 103                 static void AssertAreSame<K, V> (K expectedKey, IEnumerable<V> expectedValues, IGrouping<K, V> actual)
 104                 {
 105                         if (expectedValues == null) {
 106                                 Assert.IsNull (actual);
 107                                 return;
 108                         }
 109
 110                         Assert.IsNotNull (actual);
 111
 112                         Assert.AreEqual (expectedKey, actual.Key);
 113
 114                         var ee = expectedValues.GetEnumerator ();
 115                         var ea = actual.GetEnumerator ();
 116
 117                         while (ee.MoveNext ()) {
 118                                 Assert.IsTrue (ea.MoveNext (), "'" + ee.Current + "' expected.");
 119                                 Assert.AreEqual (ee.Current, ea.Current);
 120                         }
 121
 122                         if (ea.MoveNext ())
 123                                 Assert.Fail ("Unexpected element: " + ee.Current);
 124                 }
 125
 126                 static void AssertAreSame<K, V> (IDictionary<K, IEnumerable<V>> expected, IEnumerable<IGrouping<K, V>> actual)
 127                 {
 128                         if (expected == null) {
 129                                 Assert.IsNull (actual);
 130                                 return;
 131                         }
 132
 133                         Assert.IsNotNull (actual);
 134
 135                         var ee = expected.GetEnumerator ();
 136                         var ea = actual.GetEnumerator ();
 137
 138                         while (ee.MoveNext ()) {
 139                                 Assert.IsTrue (ea.MoveNext (), "'" + ee.Current.Key + "' expected.");
 140                                 AssertAreSame (ee.Current.Key, ee.Current.Value, ea.Current);
 141                         }
 142
 143                         if (ea.MoveNext ())
 144                                 Assert.Fail ("Unexpected element: " + ee.Current.Key);
 145                 }
 146
 147                 static void AssertAreSame<K, V> (IDictionary<K, IEnumerable<V>> expected, ILookup<K, V> actual)
 148                 {
 149                         if (expected == null) {
 150                                 Assert.IsNull (actual);
 151                                 return;
 152                         }
 153
 154                         Assert.IsNotNull (actual);
 155
 156                         var ee = expected.GetEnumerator ();
 157                         var ea = actual.GetEnumerator ();
 158
 159                         while (ee.MoveNext ()) {
 160                                 Assert.IsTrue (ea.MoveNext (), "'" + ee.Current.Key + "' expected.");
 161                                 AssertAreSame (ee.Current.Key, ee.Current.Value, ea.Current);
 162                         }
 163
 164                         if (ea.MoveNext ())
 165                                 Assert.Fail ("Unexpected element: " + ee.Current.Key);
 166                 }
 167
 168                 static void AssertAreSame<K, V> (IDictionary<K, V> expected, IDictionary<K, V> actual)
 169                 {
 170                         if (expected == null) {
 171                                 Assert.IsNull (actual);
 172                                 return;
 173                         }
 174
 175                         Assert.IsNotNull (actual);
 176
 177                         var ee = expected.GetEnumerator ();
 178                         var ea = actual.GetEnumerator ();
 179
 180                         while (ee.MoveNext ()) {
 181                                 Assert.IsTrue (ea.MoveNext (), "'" + ee.Current.Key + ", " + ee.Current.Value + "' expected.");
 182                                 Assert.AreEqual (ee.Current.Key, ea.Current.Key);
 183                                 Assert.AreEqual (ee.Current.Value, ea.Current.Value);
 184                         }
 185
 186                         if (ea.MoveNext ())
 187                                 Assert.Fail ("Unexpected element: " + ee.Current.Key + ", " + ee.Current.Value);
 188                 }
 189
 190                 [Test]
 191                 public void SelectTestCase ()
 192                 {
 193                         ParallelTestHelper.Repeat (() => {
 194                                 IEnumerable<int> sync  = baseEnumerable.Select (i => i * i);
 195                                 IEnumerable<int> async = baseEnumerable.AsParallel ().Select (i => i * i);
 196
 197                                 AreEquivalent(sync, async, 1);
 198                         });
 199                 }
 200
 201                 [Test]
 202                 public void WhereTestCase ()
 203                 {
 204                         ParallelTestHelper.Repeat (() => {
 205                                 IEnumerable<int> sync  = baseEnumerable.Where(i => i % 2 == 0);
 206                                 IEnumerable<int> async = baseEnumerable.AsParallel().Where(i => i % 2 == 0);
 207
 208                                 AreEquivalent(sync, async, 1);
 209                         });
 210                 }
 211
 212                 [Test]
 213                 public void CountTestCase ()
 214                 {
 215                         ParallelTestHelper.Repeat (() => {
 216                                 int sync  = baseEnumerable.Count();
 217                                 int async = baseEnumerable.AsParallel().Count();
 218
 219                                 Assert.AreEqual(sync, async, "#1");
 220                         });
 221                 }
 222
 223                 [Test]
 224                 public void AggregateTestCase ()
 225                 {
 226                         ParallelTestHelper.Repeat (() => {
 227                                 ParallelQuery<int> range = ParallelEnumerable.Repeat (5, 2643);
 228                                 double average = range.Aggregate(() => new double[2],
 229                                                                  (acc, elem) => { acc[0] += elem; acc[1]++; return acc; },
 230                                 (acc1, acc2) => { acc1[0] += acc2[0]; acc1[1] += acc2[1]; return acc1; },
 231                                 acc => acc[0] / acc[1]);
 232
 233                                 Assert.AreEqual(5.0, average, "#1");
 234                         });
 235                 }
 236
 237                 [Test]
 238                 public void TestSimpleExcept ()
 239                 {
 240                         ParallelTestHelper.Repeat (() => {
 241                                 int [] first = {0, 1, 2, 3, 4, 5};
 242                                 int [] second = {2, 4, 6};
 243                                 int [] result = {0, 1, 3, 5};
 244
 245                                 AreEquivalent (result, first.AsParallel ().Except (second.AsParallel ()), 1);
 246                         });
 247                 }
 248
 249                 [Test]
 250                 public void TestSimpleIntersect ()
 251                 {
 252                         ParallelTestHelper.Repeat (() => {
 253                                 int [] first = {0, 1, 2, 3, 4, 5};
 254                                 int [] second = {2, 4, 6};
 255                                 int [] result = {2, 4};
 256
 257                                 AreEquivalent (result, first.AsParallel ().Intersect (second.AsParallel ()), 1);
 258                         });
 259                 }
 260
 261                 [Test]
 262                 public void TestSimpleUnion ()
 263                 {
 264                         ParallelTestHelper.Repeat (() => {
 265                                 int [] first = {0, 1, 2, 3, 4, 5};
 266                                 int [] second = {2, 4, 6};
 267                                 int [] result = {0, 1, 2, 3, 4, 5, 6};
 268
 269                                 AreEquivalent (result, first.AsParallel ().Union (second.AsParallel ()), 1);
 270                         });
 271                 }
 272
 273                 class Foo {}
 274                 class Bar : Foo {}
 275
 276                 [Test]
 277                 public void TestCast ()
 278                 {
 279                         Bar a = new Bar ();
 280                         Bar b = new Bar ();
 281                         Bar c = new Bar ();
 282
 283                         Foo [] foos = new Foo [] {a, b, c};
 284                         Bar [] result = new Bar [] {a, b, c};
 285
 286                         AreEquivalent (result, foos.AsParallel ().Cast<Bar> (), 1);
 287                 }
 288
 289                 [Test]
 290                 public void TestSkip ()
 291                 {
 292                         int [] data = {0, 1, 2, 3, 4, 5};
 293                         int [] result = {3, 4, 5};
 294
 295                         AssertAreSame (result, data.AsParallel ().AsOrdered ().Skip (3).ToArray ());
 296                 }
 297
 298                 /*[Test]
 299                 public void TestSkipWhile ()
 300                 {
 301                         int [] data = {0, 1, 2, 3, 4, 5};
 302                         int [] result = {3, 4, 5};
 303
 304                         AssertAreSame (result, data.AsParallel ().AsOrdered ().SkipWhile (i => i < 3));
 305                 }
 306
 307                 [Test]
 308                 public void TestTake ()
 309                 {
 310                         int [] data = {0, 1, 2, 3, 4, 5};
 311                         int [] result = {0, 1, 2};
 312
 313                         AssertAreSame (result, data.AsParallel ().AsOrdered ().Take (3));
 314                 }
 315
 316                 [Test]
 317                 public void TestTakeWhile ()
 318                 {
 319                         int [] data = {0, 1, 2, 3, 4, 5};
 320                         int [] result = {0, 1, 2};
 321
 322                         AssertAreSame (result, data.AsParallel ().AsOrdered ().TakeWhile (i => i < 3));
 323                 }*/
 324
 325 //              [Test]
 326 //              public void TestLast ()
 327 //              {
 328 //                      int [] data = {1, 2, 3};
 329 //
 330 //                      Assert.AreEqual (3, data.AsParallel ().Last ());
 331 //              }
 332 //
 333 //              [Test]
 334 //              public void TestLastOrDefault ()
 335 //              {
 336 //                      int [] data = {};
 337 //
 338 //                      Assert.AreEqual (default (int), data.AsParallel ().LastOrDefault ());
 339 //              }
 340 //
 341 //              [Test]
 342 //              public void TestFirst ()
 343 //              {
 344 //                      int [] data = {1, 2, 3};
 345 //
 346 //                      Assert.AreEqual (1, data.AsParallel ().First ());
 347 //              }
 348 //
 349 //              [Test]
 350 //              public void TestFirstOrDefault ()
 351 //              {
 352 //                      int [] data = {};
 353 //
 354 //                      Assert.AreEqual (default (int), data.AsParallel ().FirstOrDefault ());
 355 //              }
 356
 357                 [Test]
 358                 public void TestReverse ()
 359                 {
 360                         int [] data = {0, 1, 2, 3, 4};
 361                         int [] result = {4, 3, 2, 1, 0};
 362
 363                         AssertAreSame (result, data.AsParallel ().AsOrdered ().Reverse ());
 364                         AssertAreSame (result, ParallelEnumerable.Range (0, 5).AsOrdered ().Reverse ());
 365                 }
 366
 367                 [Test]
 368                 public void TestOrderBy ()
 369                 {
 370                         ParallelTestHelper.Repeat (() => {
 371                                 int [] array = { 14, 53, 3, 9, 11, 14, 5, 32, 2 };
 372
 373                                 var q = array.AsParallel ().OrderBy ((i) => i);
 374                                 AssertIsOrdered (q, array.Length);
 375                         });
 376                 }
 377
 378                 class Baz {
 379                         string name;
 380                         int age;
 381
 382                         public string Name
 383                         {
 384                                 get {
 385                                         if (string.IsNullOrEmpty (name))
 386                                                 return Age.ToString ();
 387
 388                                         return name + " (" + Age + ")";
 389                                 }
 390                         }
 391
 392                         public int Age
 393                         {
 394                                 get { return age + 1; }
 395                         }
 396
 397                         public Baz (string name, int age)
 398                         {
 399                                 this.name = name;
 400                                 this.age = age;
 401                         }
 402
 403                         public override int GetHashCode ()
 404                         {
 405                                 return this.Age ^ this.Name.GetHashCode ();
 406                         }
 407
 408                         public override bool Equals (object obj)
 409                         {
 410                                 Baz b = obj as Baz;
 411                                 if (b == null)
 412                                         return false;
 413
 414                                 return b.Age == this.Age && b.Name == this.Name;
 415                         }
 416
 417                         public override string ToString ()
 418                         {
 419                                 return this.Name;
 420                         }
 421                 }
 422
 423                 static IEnumerable<Baz> CreateBazCollection ()
 424                 {
 425                         return new [] {
 426                                 new Baz ("jb", 25),
 427                                 new Baz ("ana", 20),
 428                                 new Baz ("reg", 28),
 429                                 new Baz ("ro", 25),
 430                                 new Baz ("jb", 7),
 431                         };
 432                 }
 433
 434                 [Test]
 435                 public void TestOrderByAgeAscendingTheByNameDescending ()
 436                 {
 437                         ParallelTestHelper.Repeat (() => {
 438                                 var q = from b in CreateBazCollection ().AsParallel()
 439                                                 orderby b.Age ascending, b.Name descending
 440                                                 select b;
 441                                 //var q = CreateBazCollection ().AsParallel ().OrderBy ((b) => b.Age).ThenByDescending ((b) => b.Name);
 442
 443                                 var expected = new [] {
 444                                         new Baz ("jb", 7),
 445                                         new Baz ("ana", 20),
 446                                         new Baz ("ro", 25),
 447                                         new Baz ("jb", 25),
 448                                         new Baz ("reg", 28),
 449                                 };
 450
 451                                 foreach (Baz b in q) {
 452                                         Console.Write(b.Name + ", " + b.Age + "; ");
 453                                 }
 454
 455                                 AssertAreSame (expected, q);
 456                         });
 457                 }
 458
 459                 class Data {
 460                         public int ID { get; set; }
 461                         public string Name { get; set; }
 462
 463                         public override string ToString ()
 464                         {
 465                                 return ID + " " + Name;
 466                         }
 467                 }
 468
 469                 IEnumerable<Data> CreateData ()
 470                 {
 471                         return new [] {
 472                                 new Data { ID = 10, Name = "bcd" },
 473                                 new Data { ID = 20, Name = "Abcd" },
 474                                 new Data { ID = 20, Name = "Ab" },
 475                                 new Data { ID = 10, Name = "Zyx" },
 476                         };
 477                 }
 478
 479                 [Test]
 480                 public void TestOrderByIdDescendingThenByNameAscending ()
 481                 {
 482                         ParallelTestHelper.Repeat (() => {
 483                                 var q = from d in CreateData ().AsParallel()
 484                                         orderby d.ID descending, d.Name ascending
 485                                                 select d;
 486
 487                                 var list = new List<Data> (q);
 488
 489                                 Assert.AreEqual ("Ab", list [0].Name);
 490                                 Assert.AreEqual ("Abcd", list [1].Name);
 491                                 Assert.AreEqual ("bcd", list [2].Name);
 492                                 Assert.AreEqual ("Zyx", list [3].Name);
 493                         });
 494                 }
 495
 496                 static void AssertIsOrdered (IEnumerable<int> e, int count)
 497                 {
 498                         int f = int.MinValue;
 499                         int c = 0;
 500
 501                         foreach (int i in e) {
 502                                 Assert.IsTrue (f <= i, string.Format ("{0} <= {1}", f, i));
 503                                 f = i;
 504                                 c++;
 505                         }
 506
 507                         Assert.AreEqual (count, c);
 508                 }
 509
 510                 /*
 511                 [TestAttribute, Ignore]
 512                 public void ElementAtTestCase()
 513                 {
 514                         ParallelTestHelper.Repeat (() => {
 515                                 Assert.AreEqual(1, baseEnumerable.ElementAt(0), "#1");
 516                                 Assert.AreEqual(51, baseEnumerable.ElementAt(50), "#2");
 517                                 Assert.AreEqual(489, baseEnumerable.ElementAt(488), "#3");
 518                         });
 519                 }
 520
 521                 [TestAttribute, Ignore]
 522                 public void TakeTestCase()
 523                 {
 524                         ParallelTestHelper.Repeat (() => {
 525                                 ParallelQuery<int> async = baseEnumerable.AsParallel().Take(2000);
 526                                 IEnumerable<int> sync = baseEnumerable.Take(2000);
 527
 528                                 AreEquivalent(sync, async, 1);
 529
 530                                 async = baseEnumerable.AsParallel().Take(100);
 531                                 sync = baseEnumerable.Take(100);
 532
 533                                 AreEquivalent(sync, async, 2);
 534                         });
 535                 }
 536
 537                 [TestAttribute, Ignore]
 538                 public void SkipTestCase()
 539                 {
 540                         ParallelTestHelper.Repeat (() => {
 541                                 ParallelQuery<int> async = baseEnumerable.AsParallel().AsOrdered().Skip(2000);
 542                                 IEnumerable<int> sync = baseEnumerable.Skip(2000);
 543
 544                                 AreEquivalent(sync, async, 1);
 545
 546                                 async = baseEnumerable.AsParallel().Skip(100);
 547                                 sync = baseEnumerable.Skip(100);
 548
 549                                 Assert.AreEqual(sync.Count(), async.Count(), "#2");
 550                         });
 551                 }
 552
 553                 [TestAttribute, Ignore]
 554                 public void ZipTestCase()
 555                 {
 556                         ParallelTestHelper.Repeat (() => {
 557                                 ParallelQuery<int> async1 = ParallelEnumerable.Range(0, 10000);
 558                                 ParallelQuery<int> async2 = ParallelEnumerable.Repeat(1, 10000).Zip(async1, (e1, e2) => e1 + e2);
 559
 560                                 int[] expected = Enumerable.Range (1, 10000).ToArray ();
 561                                 CollectionAssert.AreEquivalent(expected, Enumerable.ToArray (async2), "#1");
 562                         });
 563                 }
 564                 */
 565                 [Test]
 566                 public void RangeTestCase ()
 567                 {
 568                         ParallelTestHelper.Repeat (() => {
 569                                 IEnumerable<int> sync  = Enumerable.Range(1, 1000);
 570                                 IEnumerable<int> async = ParallelEnumerable.Range(1, 1000);
 571
 572                                 AreEquivalent (sync, async, 1);
 573                         });
 574                 }
 575
 576                 [Test]
 577                 public void RepeatTestCase ()
 578                 {
 579                         ParallelTestHelper.Repeat (() => {
 580                                 IEnumerable<int> sync  = Enumerable.Repeat(1, 1000);
 581                                 IEnumerable<int> async = ParallelEnumerable.Repeat(1, 1000);
 582
 583                                 AreEquivalent (sync, async, 1);
 584                         });
 585                 }
 586
 587                 [Test]
 588                 public void TestSum ()
 589                 {
 590                         int [] data = {1, 2, 3, 4};
 591
 592                         Assert.AreEqual (10, data.AsParallel().Sum ());
 593                 }
 594
 595                 [Test]
 596                 public void SumOnEmpty ()
 597                 {
 598                         int [] data = {};
 599
 600                         Assert.AreEqual (0, data.AsParallel().Sum ());
 601                 }
 602
 603                 [Test]
 604                 public void TestMax ()
 605                 {
 606                         int [] data = {1, 3, 5, 2};
 607
 608                         Assert.AreEqual (5, data.AsParallel().Max ());
 609                 }
 610
 611                 [Test]
 612                 public void TestMin ()
 613                 {
 614                         int [] data = {3, 5, 2, 6, 1, 7};
 615
 616                         Assert.AreEqual (1, data.AsParallel().Min ());
 617                 }
 618
 619                 [Test]
 620                 public void TestToListOrdered ()
 621                 {
 622                         int [] data = { 2, 3, 5 };
 623
 624                         var list = data.AsParallel().AsOrdered().ToList ();
 625
 626                         AssertAreSame (data, list);
 627                         AssertIsOrdered (list, data.Length);
 628
 629                         Assert.AreEqual (typeof (List<int>), list.GetType ());
 630                 }
 631
 632                 [Test]
 633                 public void TestToArrayOrdered ()
 634                 {
 635                         ICollection<int> coll = new List<int> ();
 636                         coll.Add (0);
 637                         coll.Add (1);
 638                         coll.Add (2);
 639
 640                         int [] result = {0, 1, 2};
 641
 642                         var array = coll.AsParallel().AsOrdered().ToArray ();
 643
 644                         AssertAreSame (result, array);
 645                         AssertIsOrdered (array, result.Length);
 646
 647                         Assert.AreEqual (typeof (int []), array.GetType ());
 648                 }
 649
 650                 [Test]
 651                 public void TestToList ()
 652                 {
 653                         int [] data = {3, 5, 2};
 654
 655                         var list = data.AsParallel().ToList ();
 656
 657                         CollectionAssert.AreEquivalent (data, list);
 658
 659                         Assert.AreEqual (typeof (List<int>), list.GetType ());
 660                 }
 661
 662                 [Test]
 663                 public void TestToArray ()
 664                 {
 665                         ICollection<int> coll = new List<int> ();
 666                         coll.Add (0);
 667                         coll.Add (1);
 668                         coll.Add (2);
 669
 670                         int [] result = {0, 1, 2};
 671
 672                         var array = coll.AsParallel().ToArray ();
 673
 674                         CollectionAssert.AreEquivalent (result, array);
 675
 676                         Assert.AreEqual (typeof (int []), array.GetType ());
 677                 }
 678
 679
 680                 [Test]
 681                 public void TestAverageOnInt32 ()
 682                 {
 683                         Assert.AreEqual (23.25, (new int [] { 24, 7, 28, 34 }).Average ());
 684                 }
 685
 686                 [Test]
 687                 public void TestAverageOnInt64 ()
 688                 {
 689                         Assert.AreEqual (23.25, (new long [] { 24, 7, 28, 34 }).Average ());
 690                 }
 691
 692                 /*
 693                 [Test]
 694                 public void AnyArgumentNullTest ()
 695                 {
 696                         string [] data = { "2", "1", "5", "3", "4" };
 697
 698
 699                         // Any<TSource> ()
 700                         AssertException<ArgumentNullException> (delegate () { ((IEnumerable<string>) null).AsParallel ().Any (); });
 701
 702                         // Any<TSource> (Func<TSource, bool>)
 703                         AssertException<ArgumentNullException> (delegate () { ((IEnumerable<string>) null).AsParallel ().Any (x => true); });
 704                         AssertException<ArgumentNullException> (delegate () { data.AsParallel ().Any ((Func<string, bool>) null); });
 705                 }*/
 706
 707                 [Test]
 708                 public void AnyTest ()
 709                 {
 710                         int [] data = { 5, 2, 3, 1, 6 };
 711                         int [] empty = { };
 712
 713
 714                         // Any<TSource> ()
 715                         Assert.IsTrue (data.AsParallel ().Any ());
 716                         Assert.IsFalse (empty.AsParallel ().Any ());
 717
 718                         // Any<TSource> (Func<TSource, bool>)
 719                         Assert.IsTrue (data.AsParallel ().Any (x => x == 5));
 720                         Assert.IsFalse (data.AsParallel ().Any (x => x == 9));
 721                         Assert.IsFalse (empty.AsParallel ().Any (x => true));
 722                 }
 723
 724                 /*
 725                 [Test]
 726                 public void AllArgumentNullTest ()
 727                 {
 728                         string [] data = { "2", "1", "5", "3", "4" };
 729
 730                         AssertException<ArgumentNullException> (delegate () { ((IEnumerable<string>) null).AsParallel ().All (x => true); });
 731                         AssertException<ArgumentNullException> (delegate () { data.AsParallel ().All ((Func<string, bool>) null); });
 732                 }*/
 733
 734                 [Test]
 735                 public void AllTest ()
 736                 {
 737                         int [] data = { 5, 2, 3, 1, 6 };
 738                         int [] empty = { };
 739
 740                         Assert.IsTrue (data.AsParallel ().All (x => true));
 741                         Assert.IsFalse (data.AsParallel ().All (x => x != 1));
 742                         Assert.IsTrue (empty.AsParallel ().All (x => false));
 743                 }
 744         }
 745 }
 746
 747 #endif