mcs/class/corlib/Test/System/DecimalTest-Microsoft.cs

   1 // DecimalTest-Microsoft.cs - NUnit Test Cases for System.Decimal, ported
   2 // from corefx src/System.Runtime/tests/System/Decimal.cs to NUnit
   3 //
   4 // Copyright (c) Microsoft. All rights reserved.
   5 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
   6 // Copyright 2015 Xamarin Inc
   7 //
   8
   9 using NUnit.Framework;
  10 using System;
  11 using MonoTests.Common;
  12 using System.Globalization;
  13 using System.Runtime.CompilerServices;
  14 using System.Threading;
  15 using System.Collections.Generic;
  16
  17 namespace MonoTests.System
  18 {
  19         [TestFixture]
  20         public class DecimalTestMicrosoft
  21         {
  22                 [Test]
  23                 public void TestEquals()
  24                 {
  25                     // Boolean Decimal.Equals(Decimal)
  26                     Assert.IsTrue(Decimal.Zero.Equals(Decimal.Zero));
  27                     Assert.IsFalse(Decimal.Zero.Equals(Decimal.One));
  28                     Assert.IsTrue(Decimal.MaxValue.Equals(Decimal.MaxValue));
  29                     Assert.IsTrue(Decimal.MinValue.Equals(Decimal.MinValue));
  30                     Assert.IsFalse(Decimal.MaxValue.Equals(Decimal.MinValue));
  31                     Assert.IsFalse(Decimal.MinValue.Equals(Decimal.MaxValue));
  32                 }
  33
  34                 [Test]
  35                 public void TestEqualsDecDec()
  36                 {
  37                     // Boolean Decimal.Equals(Decimal, Decimal)
  38                     Assert.IsTrue(Decimal.Equals(Decimal.Zero, Decimal.Zero));
  39                     Assert.IsFalse(Decimal.Equals(Decimal.Zero, Decimal.One));
  40                     Assert.IsTrue(Decimal.Equals(Decimal.MaxValue, Decimal.MaxValue));
  41                     Assert.IsTrue(Decimal.Equals(Decimal.MinValue, Decimal.MinValue));
  42                     Assert.IsFalse(Decimal.Equals(Decimal.MinValue, Decimal.MaxValue));
  43                     Assert.IsFalse(Decimal.Equals(Decimal.MaxValue, Decimal.MinValue));
  44                 }
  45
  46                 [Test]
  47                 public void TestEqualsObj()
  48                 {
  49                     // Boolean Decimal.Equals(Object)
  50                     Assert.IsTrue(Decimal.Zero.Equals((object)Decimal.Zero));
  51                     Assert.IsFalse(Decimal.Zero.Equals((object)Decimal.One));
  52                     Assert.IsTrue(Decimal.MaxValue.Equals((object)Decimal.MaxValue));
  53                     Assert.IsTrue(Decimal.MinValue.Equals((object)Decimal.MinValue));
  54                     Assert.IsFalse(Decimal.MinValue.Equals((object)Decimal.MaxValue));
  55                     Assert.IsFalse(Decimal.MaxValue.Equals((object)Decimal.MinValue));
  56                     Assert.IsFalse(Decimal.One.Equals(null));
  57                     Assert.IsFalse(Decimal.One.Equals("one"));
  58                     Assert.IsFalse(Decimal.One.Equals((object)1));
  59                 }
  60
  61                 [Test]
  62                 public void Testop_Equality()
  63                 {
  64                     // Boolean Decimal.op_Equality(Decimal, Decimal)
  65                     Assert.IsTrue(Decimal.Zero == Decimal.Zero);
  66                     Assert.IsFalse(Decimal.Zero == Decimal.One);
  67                     Assert.IsTrue(Decimal.MaxValue == Decimal.MaxValue);
  68                     Assert.IsTrue(Decimal.MinValue == Decimal.MinValue);
  69                     Assert.IsFalse(Decimal.MinValue == Decimal.MaxValue);
  70                     Assert.IsFalse(Decimal.MaxValue == Decimal.MinValue);
  71                 }
  72
  73                 [Test]
  74                 public void Testop_GreaterThan()
  75                 {
  76                     // Boolean Decimal.op_GreaterThan(Decimal, Decimal)
  77                     Assert.IsFalse(Decimal.Zero > Decimal.Zero);
  78                     Assert.IsFalse(Decimal.Zero > Decimal.One);
  79                     Assert.IsTrue(Decimal.One > Decimal.Zero);
  80                     Assert.IsFalse(Decimal.MaxValue > Decimal.MaxValue);
  81                     Assert.IsFalse(Decimal.MinValue > Decimal.MinValue);
  82                     Assert.IsFalse(Decimal.MinValue > Decimal.MaxValue);
  83                     Assert.IsTrue(Decimal.MaxValue > Decimal.MinValue);
  84                 }
  85
  86                 [Test]
  87                 public void Testop_GreaterThanOrEqual()
  88                 {
  89                     // Boolean Decimal.op_GreaterThanOrEqual(Decimal, Decimal)
  90                     Assert.IsTrue(Decimal.Zero >= Decimal.Zero);
  91                     Assert.IsFalse(Decimal.Zero >= Decimal.One);
  92                     Assert.IsTrue(Decimal.One >= Decimal.Zero);
  93                     Assert.IsTrue(Decimal.MaxValue >= Decimal.MaxValue);
  94                     Assert.IsTrue(Decimal.MinValue >= Decimal.MinValue);
  95                     Assert.IsFalse(Decimal.MinValue >= Decimal.MaxValue);
  96                     Assert.IsTrue(Decimal.MaxValue >= Decimal.MinValue);
  97                 }
  98
  99                 [Test]
 100                 public void Testop_Inequality()
 101                 {
 102                     // Boolean Decimal.op_Inequality(Decimal, Decimal)
 103                     Assert.IsFalse(Decimal.Zero != Decimal.Zero);
 104                     Assert.IsTrue(Decimal.Zero != Decimal.One);
 105                     Assert.IsTrue(Decimal.One != Decimal.Zero);
 106                     Assert.IsFalse(Decimal.MaxValue != Decimal.MaxValue);
 107                     Assert.IsFalse(Decimal.MinValue != Decimal.MinValue);
 108                     Assert.IsTrue(Decimal.MinValue != Decimal.MaxValue);
 109                     Assert.IsTrue(Decimal.MaxValue != Decimal.MinValue);
 110                 }
 111
 112                 [Test]
 113                 public void Testop_LessThan()
 114                 {
 115                     // Boolean Decimal.op_LessThan(Decimal, Decimal)
 116                     Assert.IsFalse(Decimal.Zero < Decimal.Zero);
 117                     Assert.IsTrue(Decimal.Zero < Decimal.One);
 118                     Assert.IsFalse(Decimal.One < Decimal.Zero);
 119                     Assert.IsTrue(5m < 15m);
 120                     decimal d5 = 5;
 121                     decimal d3 = 3;
 122                     Assert.IsFalse(d5 < d3);
 123                     Assert.IsFalse(Decimal.MaxValue < Decimal.MaxValue);
 124                     Assert.IsFalse(Decimal.MinValue < Decimal.MinValue);
 125                     Assert.IsTrue(Decimal.MinValue < Decimal.MaxValue);
 126                     Assert.IsFalse(Decimal.MaxValue < Decimal.MinValue);
 127                 }
 128
 129                 [Test]
 130                 public void Testop_LessThanOrEqual()
 131                 {
 132                     // Boolean Decimal.op_LessThanOrEqual(Decimal, Decimal)
 133                     Assert.IsTrue(Decimal.Zero <= Decimal.Zero);
 134                     Assert.IsTrue(Decimal.Zero <= Decimal.One);
 135                     Assert.IsFalse(Decimal.One <= Decimal.Zero);
 136                     Assert.IsTrue(Decimal.MaxValue <= Decimal.MaxValue);
 137                     Assert.IsTrue(Decimal.MinValue <= Decimal.MinValue);
 138                     Assert.IsTrue(Decimal.MinValue <= Decimal.MaxValue);
 139                     Assert.IsFalse(Decimal.MaxValue <= Decimal.MinValue);
 140                 }
 141
 142                 [Test]
 143                 public void TestToByte()
 144                 {
 145                     // Byte Decimal.ToByte(Decimal)
 146                     Assert.AreEqual(0, Decimal.ToByte(0));
 147                     Assert.AreEqual(1, Decimal.ToByte(1));
 148                     Assert.AreEqual(255, Decimal.ToByte(255));
 149
 150                     AssertExtensions.Throws<OverflowException>(() => Decimal.ToByte(256), "Expected an overflow");
 151                 }
 152
 153                 private void VerifyAdd<T>(Decimal d1, Decimal d2, Decimal expected = Decimal.Zero) where T : Exception
 154                 {
 155                     bool expectFailure = typeof(T) != typeof(Exception);
 156
 157                     try
 158                     {
 159                         Decimal result1 = Decimal.Add(d1, d2);
 160                         Decimal result2 = d1 + d2;
 161
 162                         Assert.IsFalse(expectFailure, "Expected an exception to be thrown");
 163                         Assert.AreEqual(result1, result2);
 164                         Assert.AreEqual(expected, result1);
 165                     }
 166                     catch (T)
 167                     {
 168                         Assert.IsTrue(expectFailure, "Didn't expect an exception to be thrown");
 169                     }
 170                 }
 171                 [Test]
 172                 public void TestAdd()
 173                 {
 174                     // Decimal Decimal.Add(Decimal, Decimal)
 175                     // Decimal Decimal.op_Addition(Decimal, Decimal)
 176                     VerifyAdd<Exception>(1, 1, 2);
 177                     VerifyAdd<Exception>(-1, 1, 0);
 178                     VerifyAdd<Exception>(1, -1, 0);
 179                     VerifyAdd<Exception>(Decimal.MaxValue, Decimal.Zero, Decimal.MaxValue);
 180                     VerifyAdd<Exception>(Decimal.MinValue, Decimal.Zero, Decimal.MinValue);
 181                     VerifyAdd<Exception>(79228162514264337593543950330m, 5, Decimal.MaxValue);
 182                     VerifyAdd<Exception>(79228162514264337593543950330m, -5, 79228162514264337593543950325m);
 183                     VerifyAdd<Exception>(-79228162514264337593543950330m, -5, Decimal.MinValue);
 184                     VerifyAdd<Exception>(-79228162514264337593543950330m, 5, -79228162514264337593543950325m);
 185                     VerifyAdd<Exception>(1234.5678m, 0.00009m, 1234.56789m);
 186                     VerifyAdd<Exception>(-1234.5678m, 0.00009m, -1234.56771m);
 187                     VerifyAdd<Exception>(0.1111111111111111111111111111m,
 188                                          0.1111111111111111111111111111m,
 189                                          0.2222222222222222222222222222m);
 190                     VerifyAdd<Exception>(0.5555555555555555555555555555m,
 191                                          0.5555555555555555555555555555m,
 192                                          1.1111111111111111111111111110m);
 193
 194                     // Exceptions
 195                     VerifyAdd<OverflowException>(Decimal.MaxValue, Decimal.MaxValue);
 196                     VerifyAdd<OverflowException>(79228162514264337593543950330m, 6);
 197                     VerifyAdd<OverflowException>(-79228162514264337593543950330m, -6, Decimal.MinValue);
 198                 }
 199
 200                 [Test]
 201                 public void TestCeiling()
 202                 {
 203                     // Decimal Decimal.Ceiling(Decimal)
 204                     Assert.AreEqual(123, Decimal.Ceiling((Decimal)123));
 205                     Assert.AreEqual(124, Decimal.Ceiling((Decimal)123.123));
 206                     Assert.AreEqual(-123, Decimal.Ceiling((Decimal)(-123.123)));
 207                     Assert.AreEqual(124, Decimal.Ceiling((Decimal)123.567));
 208                     Assert.AreEqual(-123, Decimal.Ceiling((Decimal)(-123.567)));
 209                 }
 210
 211                 private void VerifyDivide<T>(Decimal d1, Decimal d2, Decimal expected = Decimal.Zero) where T : Exception
 212                 {
 213                     bool expectFailure = typeof(T) != typeof(Exception);
 214
 215                     try
 216                     {
 217                         Decimal result1 = Decimal.Divide(d1, d2);
 218                         Decimal result2 = d1 / d2;
 219
 220                         Assert.IsFalse(expectFailure, "Expected an exception to be thrown");
 221                         Assert.AreEqual(result1, result2);
 222                         Assert.AreEqual(expected, result1);
 223                     }
 224                     catch (T)
 225                     {
 226                         Assert.IsTrue(expectFailure, "Didn't expect an exception to be thrown");
 227                     }
 228                 }
 229                 [Test]
 230                 public void TestDivide()
 231                 {
 232                     // Decimal Decimal.Divide(Decimal, Decimal)
 233                     // Decimal Decimal.op_Division(Decimal, Decimal)
 234
 235                     // Vanilla cases
 236                     VerifyDivide<Exception>(Decimal.One, Decimal.One, Decimal.One);
 237                     VerifyDivide<Exception>(Decimal.MaxValue, Decimal.MinValue, Decimal.MinusOne);
 238                     VerifyDivide<Exception>(0.9214206543486529434634231456m, Decimal.MaxValue, Decimal.Zero);
 239                     VerifyDivide<Exception>(38214206543486529434634231456m, 0.49214206543486529434634231456m, 77648730371625094566866001277m);
 240                     VerifyDivide<Exception>(-78228162514264337593543950335m, Decimal.MaxValue, -0.987378225516463811113412343m);
 241                     VerifyDivide<Exception>(5m + 10m, 2m, 7.5m);
 242                     VerifyDivide<Exception>(10m, 2m, 5m);
 243
 244                     // Tests near MaxValue (VSWhidbey #389382)
 245                     VerifyDivide<Exception>(792281625142643375935439503.4m, 0.1m, 7922816251426433759354395034m);
 246                     VerifyDivide<Exception>(79228162514264337593543950.34m, 0.1m, 792281625142643375935439503.4m);
 247                     VerifyDivide<Exception>(7922816251426433759354395.034m, 0.1m, 79228162514264337593543950.34m);
 248                     VerifyDivide<Exception>(792281625142643375935439.5034m, 0.1m, 7922816251426433759354395.034m);
 249                     VerifyDivide<Exception>(79228162514264337593543950335m, 10m, 7922816251426433759354395033.5m);
 250                     VerifyDivide<Exception>(79228162514264337567774146561m, 10m, 7922816251426433756777414656.1m);
 251                     VerifyDivide<Exception>(79228162514264337567774146560m, 10m, 7922816251426433756777414656m);
 252                     VerifyDivide<Exception>(79228162514264337567774146559m, 10m, 7922816251426433756777414655.9m);
 253                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.1m, 72025602285694852357767227577m);
 254                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.01m, 78443725261647859003508861718m);
 255                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.001m, 79149013500763574019524425909.091m);
 256                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0001m, 79220240490215316061937756559.344m);
 257                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00001m, 79227370240561931974224208092.919m);
 258                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000001m, 79228083286181051412492537842.462m);
 259                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000001m, 79228154591448878448656105469.389m);
 260                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000001m, 79228161721982720373716746597.833m);
 261                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000001m, 79228162435036175158507775176.492m);
 262                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000001m, 79228162506341521342909798200.709m);
 263                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000000001m, 79228162513472055968409229775.316m);
 264                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000000001m, 79228162514185109431029765225.569m);
 265                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000000001m, 79228162514256414777292524693.522m);
 266                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000000000001m, 79228162514263545311918807699.547m);
 267                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000000000001m, 79228162514264258365381436070.742m);
 268                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000000000001m, 79228162514264329670727698908.567m);
 269                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000000000000001m, 79228162514264336801262325192.357m);
 270                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000000000000001m, 79228162514264337514315787820.736m);
 271                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000000000000001m, 79228162514264337585621134083.574m);
 272                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000000000000000001m, 79228162514264337592751668709.857m);
 273                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000000000000000001m, 79228162514264337593464722172.486m);
 274                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000000000000000001m, 79228162514264337593536027518.749m);
 275                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000000000000000000001m, 79228162514264337593543158053.375m);
 276                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000000000000000000001m, 79228162514264337593543871106.837m);
 277                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000000000000000000001m, 79228162514264337593543942412.184m);
 278                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.00000000000000000000000001m, 79228162514264337593543949542.718m);
 279                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.000000000000000000000000001m, 79228162514264337593543950255.772m);
 280                     VerifyDivide<Exception>(7922816251426433759354395033.5m, 0.9999999999999999999999999999m, 7922816251426433759354395034m);
 281                     VerifyDivide<Exception>(79228162514264337593543950335m, 10000000m, 7922816251426433759354.3950335m);
 282                     VerifyDivide<Exception>(7922816251426433759354395033.5m, 1.000001m, 7922808328618105141249253784.2m);
 283                     VerifyDivide<Exception>(7922816251426433759354395033.5m, 1.0000000000000000000000000001m, 7922816251426433759354395032.7m);
 284                     VerifyDivide<Exception>(7922816251426433759354395033.5m, 1.0000000000000000000000000002m, 7922816251426433759354395031.9m);
 285                     VerifyDivide<Exception>(7922816251426433759354395033.5m, 0.9999999999999999999999999999m, 7922816251426433759354395034m);
 286                     VerifyDivide<Exception>(79228162514264337593543950335m, 1.0000000000000000000000000001m, 79228162514264337593543950327m);
 287                     Decimal boundary7 = new Decimal((int)429u, (int)2133437386u, 0, false, 0);
 288                     Decimal boundary71 = new Decimal((int)429u, (int)2133437387u, 0, false, 0);
 289                     Decimal maxValueBy7 = Decimal.MaxValue * 0.0000001m;
 290                     VerifyDivide<Exception>(maxValueBy7, 1m, maxValueBy7);
 291                     VerifyDivide<Exception>(maxValueBy7, 1m, maxValueBy7);
 292                     VerifyDivide<Exception>(maxValueBy7, 0.0000001m, Decimal.MaxValue);
 293                     VerifyDivide<Exception>(boundary7, 1m, boundary7);
 294                     VerifyDivide<Exception>(boundary7, 0.000000100000000000000000001m, 91630438009337286849083695.62m);
 295                     VerifyDivide<Exception>(boundary71, 0.000000100000000000000000001m, 91630438052286959809083695.62m);
 296                     VerifyDivide<Exception>(7922816251426433759354.3950335m, 1m, 7922816251426433759354.3950335m);
 297                     VerifyDivide<Exception>(7922816251426433759354.3950335m, 0.0000001m, 79228162514264337593543950335m);
 298
 299                     //[] DivideByZero exceptions
 300                     VerifyDivide<DivideByZeroException>(Decimal.One, Decimal.Zero);
 301                     VerifyDivide<DivideByZeroException>(Decimal.Zero, Decimal.Zero);
 302                     VerifyDivide<DivideByZeroException>(-5.00m, (-1m) * Decimal.Zero);
 303                     VerifyDivide<DivideByZeroException>(0.0m, -0.00m);
 304
 305                     //[] Overflow exceptions
 306                     VerifyDivide<OverflowException>(79228162514264337593543950335m, -0.9999999999999999999999999m);
 307                     VerifyDivide<OverflowException>(792281625142643.37593543950335m, 0.0000000000000079228162514264337593543950335m);
 308                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.1m);
 309                     VerifyDivide<OverflowException>(7922816251426433759354395034m, 0.1m);
 310                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9m);
 311                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99m);
 312                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999m);
 313                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999m);
 314                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999m);
 315                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999m);
 316                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999m);
 317                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999m);
 318                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999m);
 319                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999m);
 320                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999999m);
 321                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999999m);
 322                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999999m);
 323                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999999999m);
 324                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999999999m);
 325                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999999999m);
 326                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999999999999m);
 327                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999999999999m);
 328                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999999999999m);
 329                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999999999999999m);
 330                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999999999999999m);
 331                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999999999999999m);
 332                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999999999999999999m);
 333                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999999999999999999m);
 334                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999999999999999999m);
 335                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.99999999999999999999999999m);
 336                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.999999999999999999999999999m);
 337                     VerifyDivide<OverflowException>(79228162514264337593543950335m, 0.9999999999999999999999999999m);
 338                     VerifyDivide<OverflowException>(79228162514264337593543950335m, -0.1m);
 339                     VerifyDivide<OverflowException>(79228162514264337593543950335m, -0.9999999999999999999999999m);
 340                     VerifyDivide<OverflowException>(Decimal.MaxValue / 2, 0.5m);
 341                 }
 342
 343                 [Test]
 344                 public void TestFloor()
 345                 {
 346                     // Decimal Decimal.Floor(Decimal)
 347                     Assert.AreEqual(123, Decimal.Floor((Decimal)123));
 348                     Assert.AreEqual(123, Decimal.Floor((Decimal)123.123));
 349                     Assert.AreEqual(-124, Decimal.Floor((Decimal)(-123.123)));
 350                     Assert.AreEqual(123, Decimal.Floor((Decimal)123.567));
 351                     Assert.AreEqual(-124, Decimal.Floor((Decimal)(-123.567)));
 352                 }
 353
 354                 [Test]
 355                 public void TestMaxValue()
 356                 {
 357                     // Decimal Decimal.MaxValue
 358                     Assert.AreEqual(Decimal.MaxValue, 79228162514264337593543950335m);
 359                 }
 360
 361                 [Test]
 362                 public void TestMinusOne()
 363                 {
 364                     // Decimal Decimal.MinusOne
 365                     Assert.AreEqual(Decimal.MinusOne, -1);
 366                 }
 367
 368                 [Test]
 369                 public void TestZero()
 370                 {
 371                     // Decimal Decimal.Zero
 372                     Assert.AreEqual(Decimal.Zero, 0);
 373                 }
 374
 375                 [Test]
 376                 public void TestOne()
 377                 {
 378                     // Decimal Decimal.One
 379                     Assert.AreEqual(Decimal.One, 1);
 380                 }
 381
 382                 [Test]
 383                 public void TestMinValue()
 384                 {
 385                     // Decimal Decimal.MinValue
 386                     Assert.AreEqual(Decimal.MinValue, -79228162514264337593543950335m);
 387                 }
 388
 389                 private void VerifyMultiply<T>(Decimal d1, Decimal d2, Decimal expected = Decimal.Zero) where T : Exception
 390                 {
 391                     bool expectFailure = typeof(T) != typeof(Exception);
 392
 393                     try
 394                     {
 395                         Decimal result1 = Decimal.Multiply(d1, d2);
 396                         Decimal result2 = d1 * d2;
 397
 398                         Assert.IsFalse(expectFailure, "Expected an exception to be thrown");
 399                         Assert.AreEqual(result1, result2);
 400                         Assert.AreEqual(expected, result1);
 401                     }
 402                     catch (T)
 403                     {
 404                         Assert.IsTrue(expectFailure, "Didn't expect an exception to be thrown");
 405                     }
 406                 }
 407
 408                 [Test]
 409                 public void TestMultiply()
 410                 {
 411                     // Decimal Decimal.Multiply(Decimal, Decimal)
 412                     // Decimal Decimal.op_Multiply(Decimal, Decimal)
 413
 414                     VerifyMultiply<Exception>(Decimal.One, Decimal.One, Decimal.One);
 415                     VerifyMultiply<Exception>(7922816251426433759354395033.5m, new Decimal(10), Decimal.MaxValue);
 416                     VerifyMultiply<Exception>(0.2352523523423422342354395033m, 56033525474612414574574757495m, 13182018677937129120135020796m);
 417                     VerifyMultiply<Exception>(46161363632634613634.093453337m, 461613636.32634613634083453337m, 21308714924243214928823669051m);
 418                     VerifyMultiply<Exception>(0.0000000000000345435353453563m, .0000000000000023525235234234m, 0.0000000000000000000000000001m);
 419
 420                     // Near MaxValue
 421                     VerifyMultiply<Exception>(79228162514264337593543950335m, 0.9m, 71305346262837903834189555302m);
 422                     VerifyMultiply<Exception>(79228162514264337593543950335m, 0.99m, 78435880889121694217608510832m);
 423                     VerifyMultiply<Exception>(79228162514264337593543950335m, 0.9999999999999999999999999999m, 79228162514264337593543950327m);
 424                     VerifyMultiply<Exception>(-79228162514264337593543950335m, 0.9m, -71305346262837903834189555302m);
 425                     VerifyMultiply<Exception>(-79228162514264337593543950335m, 0.99m, -78435880889121694217608510832m);
 426                     VerifyMultiply<Exception>(-79228162514264337593543950335m, 0.9999999999999999999999999999m, -79228162514264337593543950327m);
 427
 428                     // Exceptions
 429                     VerifyMultiply<OverflowException>(Decimal.MaxValue, Decimal.MinValue);
 430                     VerifyMultiply<OverflowException>(Decimal.MinValue, 1.1m);
 431                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.1m);
 432                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.01m);
 433                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.001m);
 434                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0001m);
 435                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00001m);
 436                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000001m);
 437                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000001m);
 438                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000001m);
 439                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000001m);
 440                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000000001m);
 441                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000000001m);
 442                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000000001m);
 443                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000000000001m);
 444                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000000000001m);
 445                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000000000001m);
 446                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000000000000001m);
 447                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000000000000001m);
 448                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000000000000001m);
 449                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000000000000000001m);
 450                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000000000000000001m);
 451                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000000000000000001m);
 452                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000000000000000000001m);
 453                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000000000000000000001m);
 454                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000000000000000000001m);
 455                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.0000000000000000000000001m);
 456                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.00000000000000000000000001m);
 457                     VerifyMultiply<OverflowException>(79228162514264337593543950335m, 1.000000000000000000000000001m);
 458                     VerifyMultiply<OverflowException>(Decimal.MaxValue / 2, 2m);
 459                 }
 460
 461                 [Test]
 462                 public void TestNegate()
 463                 {
 464                     // Decimal Decimal.Negate(Decimal)
 465                     Assert.AreEqual(0, Decimal.Negate(0));
 466                     Assert.AreEqual(1, Decimal.Negate(-1));
 467                     Assert.AreEqual(-1, Decimal.Negate(1));
 468                 }
 469
 470                 [Test]
 471                 public void Testop_Decrement()
 472                 {
 473                     // Decimal Decimal.op_Decrement(Decimal)
 474                     Decimal d = 12345;
 475                     Assert.AreEqual(12344, --d);
 476                     d = 12345.678m;
 477                     Assert.AreEqual(12344.678m, --d);
 478                     d = -12345;
 479                     Assert.AreEqual(-12346, --d);
 480                     d = -12345.678m;
 481                     Assert.AreEqual(-12346.678m, --d);
 482                 }
 483
 484                 [Test]
 485                 public void Testop_Increment()
 486                 {
 487                     // Decimal Decimal.op_Increment(Decimal)
 488                     Decimal d = 12345;
 489                     Assert.AreEqual(12346, ++d);
 490                     d = 12345.678m;
 491                     Assert.AreEqual(12346.678m, ++d);
 492                     d = -12345;
 493                     Assert.AreEqual(-12344m, ++d);
 494                     d = -12345.678m;
 495                     Assert.AreEqual(-12344.678m, ++d);
 496                 }
 497
 498                 [Test]
 499                 [Culture ("en")]
 500                 public void TestParse()
 501                 {
 502                     // Boolean Decimal.TryParse(String, NumberStyles, IFormatProvider, Decimal)
 503                     Assert.AreEqual(123, Decimal.Parse("123"));
 504                     Assert.AreEqual(-123, Decimal.Parse("-123"));
 505                     Assert.AreEqual(123.123m, Decimal.Parse("123.123"));
 506                     Assert.AreEqual(-123.123m, Decimal.Parse("-123.123"));
 507
 508                     Decimal d;
 509                     Assert.IsTrue(Decimal.TryParse("79228162514264337593543950335", out d));
 510                     Assert.AreEqual(Decimal.MaxValue, d);
 511
 512                     Assert.IsTrue(Decimal.TryParse("-79228162514264337593543950335", out d));
 513                     Assert.AreEqual(Decimal.MinValue, d);
 514
 515                     Assert.IsTrue(Decimal.TryParse("79,228,162,514,264,337,593,543,950,335", NumberStyles.AllowThousands, NumberFormatInfo.CurrentInfo, out d));
 516                     Assert.AreEqual(Decimal.MaxValue, d);
 517
 518                     Assert.IsFalse(Decimal.TryParse("ysaidufljasdf", out d));
 519                     Assert.IsFalse(Decimal.TryParse("79228162514264337593543950336", out d));
 520                 }
 521
 522                 private void VerifyRemainder(Decimal d1, Decimal d2, Decimal expectedResult)
 523                 {
 524                     Decimal result1 = Decimal.Remainder(d1, d2);
 525                     Decimal result2 = d1 % d2;
 526
 527                     Assert.AreEqual(result1, result2);
 528                     Assert.AreEqual(expectedResult, result1);
 529                 }
 530
 531                 [Test]
 532                 public void TestRemainder()
 533                 {
 534                     // Decimal Decimal.Remainder(Decimal, Decimal)
 535                     // Decimal Decimal.op_Modulus(Decimal, Decimal)
 536                     Decimal NegativeZero = new Decimal(0, 0, 0, true, 0);
 537                     VerifyRemainder(5m, 3m, 2m);
 538                     VerifyRemainder(5m, -3m, 2m);
 539                     VerifyRemainder(-5m, 3m, -2m);
 540                     VerifyRemainder(-5m, -3m, -2m);
 541                     VerifyRemainder(3m, 5m, 3m);
 542                     VerifyRemainder(3m, -5m, 3m);
 543                     VerifyRemainder(-3m, 5m, -3m);
 544                     VerifyRemainder(-3m, -5m, -3m);
 545                     VerifyRemainder(10m, -3m, 1m);
 546                     VerifyRemainder(-10m, 3m, -1m);
 547                     VerifyRemainder(-2.0m, 0.5m, -0.0m);
 548                     VerifyRemainder(2.3m, 0.531m, 0.176m);
 549                     VerifyRemainder(0.00123m, 3242m, 0.00123m);
 550                     VerifyRemainder(3242m, 0.00123m, 0.00044m);
 551                     VerifyRemainder(17.3m, 3m, 2.3m);
 552                     VerifyRemainder(8.55m, 2.25m, 1.80m);
 553                     VerifyRemainder(0.00m, 3m, 0.00m);
 554                     VerifyRemainder(NegativeZero, 2.2m, NegativeZero);
 555
 556                     // [] Max/Min
 557                     VerifyRemainder(Decimal.MaxValue, Decimal.MaxValue, 0m);
 558                     VerifyRemainder(Decimal.MaxValue, Decimal.MinValue, 0m);
 559                     VerifyRemainder(Decimal.MaxValue, 1, 0m);
 560                     VerifyRemainder(Decimal.MaxValue, 2394713m, 1494647m);
 561                     VerifyRemainder(Decimal.MaxValue, -32768m, 32767m);
 562                     VerifyRemainder(-0.00m, Decimal.MaxValue, -0.00m);
 563                     VerifyRemainder(1.23984m, Decimal.MaxValue, 1.23984m);
 564                     VerifyRemainder(2398412.12983m, Decimal.MaxValue, 2398412.12983m);
 565                     VerifyRemainder(-0.12938m, Decimal.MaxValue, -0.12938m);
 566
 567                     VerifyRemainder(Decimal.MinValue, Decimal.MinValue, NegativeZero);
 568                     VerifyRemainder(Decimal.MinValue, Decimal.MaxValue, NegativeZero);
 569                     VerifyRemainder(Decimal.MinValue, 1, NegativeZero);
 570                     VerifyRemainder(Decimal.MinValue, 2394713m, -1494647m);
 571                     VerifyRemainder(Decimal.MinValue, -32768m, -32767m); // ASURT #90921
 572                     VerifyRemainder(0.0m, Decimal.MinValue, 0.0m);
 573                     VerifyRemainder(1.23984m, Decimal.MinValue, 1.23984m);
 574                     VerifyRemainder(2398412.12983m, Decimal.MinValue, 2398412.12983m);
 575                     VerifyRemainder(-0.12938m, Decimal.MinValue, -0.12938m);
 576
 577                     VerifyRemainder(57675350989891243676868034225m, 7m, 5m); // VSWhidbey #325142
 578                     VerifyRemainder(-57675350989891243676868034225m, 7m, -5m);
 579                     VerifyRemainder(57675350989891243676868034225m, -7m, 5m);
 580                     VerifyRemainder(-57675350989891243676868034225m, -7m, -5m);
 581
 582                     // VSWhidbey #389382
 583                     VerifyRemainder(792281625142643375935439503.4m, 0.1m, 0.0m);
 584                     VerifyRemainder(79228162514264337593543950.34m, 0.1m, 0.04m);
 585                     VerifyRemainder(7922816251426433759354395.034m, 0.1m, 0.034m);
 586                     VerifyRemainder(792281625142643375935439.5034m, 0.1m, 0.0034m);
 587                     VerifyRemainder(79228162514264337593543950335m, 10m, 5m);
 588                     VerifyRemainder(79228162514264337567774146561m, 10m, 1m);
 589                     VerifyRemainder(79228162514264337567774146560m, 10m, 0m);
 590                     VerifyRemainder(79228162514264337567774146559m, 10m, 9m);
 591                 }
 592
 593                 private void VerifySubtract<T>(Decimal d1, Decimal d2, Decimal expected = Decimal.Zero) where T : Exception
 594                 {
 595                     bool expectFailure = typeof(T) != typeof(Exception);
 596
 597                     try
 598                     {
 599                         Decimal result1 = Decimal.Subtract(d1, d2);
 600                         Decimal result2 = d1 - d2;
 601
 602                         Assert.IsFalse(expectFailure, "Expected an exception to be thrown");
 603                         Assert.AreEqual(result1, result2);
 604                         Assert.AreEqual(expected, result1);
 605                     }
 606                     catch (T)
 607                     {
 608                         Assert.IsTrue(expectFailure, "Didn't expect an exception to be thrown");
 609                     }
 610                 }
 611
 612                 [Test]
 613                 public void TestSubtract()
 614                 {
 615                     // Decimal Decimal.Subtract(Decimal, Decimal)
 616                     // Decimal Decimal.op_Subtraction(Decimal, Decimal)
 617
 618                     VerifySubtract<Exception>(1, 1, 0);
 619                     VerifySubtract<Exception>(-1, 1, -2);
 620                     VerifySubtract<Exception>(1, -1, 2);
 621                     VerifySubtract<Exception>(Decimal.MaxValue, Decimal.Zero, Decimal.MaxValue);
 622                     VerifySubtract<Exception>(Decimal.MinValue, Decimal.Zero, Decimal.MinValue);
 623                     VerifySubtract<Exception>(79228162514264337593543950330m, -5, Decimal.MaxValue);
 624                     VerifySubtract<Exception>(79228162514264337593543950330m, 5, 79228162514264337593543950325m);
 625                     VerifySubtract<Exception>(-79228162514264337593543950330m, 5, Decimal.MinValue);
 626                     VerifySubtract<Exception>(-79228162514264337593543950330m, -5, -79228162514264337593543950325m);
 627                     VerifySubtract<Exception>(1234.5678m, 0.00009m, 1234.56771m);
 628                     VerifySubtract<Exception>(-1234.5678m, 0.00009m, -1234.56789m);
 629                     VerifySubtract<Exception>(0.1111111111111111111111111111m, 0.1111111111111111111111111111m, 0);
 630                     VerifySubtract<Exception>(0.2222222222222222222222222222m,
 631                                          0.1111111111111111111111111111m,
 632                                          0.1111111111111111111111111111m);
 633                     VerifySubtract<Exception>(1.1111111111111111111111111110m,
 634                                          0.5555555555555555555555555555m,
 635                                          0.5555555555555555555555555555m);
 636                 }
 637
 638                 [Test]
 639                 public void TestTruncate()
 640                 {
 641                     // Decimal Decimal.Truncate(Decimal)
 642                     Assert.AreEqual(123, Decimal.Truncate((Decimal)123));
 643                     Assert.AreEqual(123, Decimal.Truncate((Decimal)123.123));
 644                     Assert.AreEqual(-123, Decimal.Truncate((Decimal)(-123.123)));
 645                     Assert.AreEqual(123, Decimal.Truncate((Decimal)123.567));
 646                     Assert.AreEqual(-123, Decimal.Truncate((Decimal)(-123.567)));
 647                 }
 648
 649                 [Test]
 650                 public void TestRound()
 651                 {
 652                     // Decimal Decimal.Truncate(Decimal)
 653                     // Assert.AreEqual<Decimal>(123, Decimal.Round((Decimal)123, 2));
 654                     // Assert.AreEqual<Decimal>((Decimal)123.123, Decimal.Round((Decimal)123.123, 3));
 655                     // Assert.AreEqual<Decimal>((Decimal)(-123.1), Decimal.Round((Decimal)(-123.123), 1));
 656                     // Assert.AreEqual<Decimal>(124, Decimal.Round((Decimal)123.567, 0));
 657                     // Assert.AreEqual<Decimal>((Decimal)(-123.567), Decimal.Round((Decimal)(-123.567), 4));
 658                 }
 659
 660                 [Test]
 661                 public void TestCompare()
 662                 {
 663                     // Int32 Decimal.Compare(Decimal, Decimal)
 664                     Assert.IsTrue(Decimal.Compare(Decimal.Zero, Decimal.Zero) == 0);
 665                     Assert.IsTrue(Decimal.Compare(Decimal.Zero, Decimal.One) < 0);
 666                     Assert.IsTrue(Decimal.Compare(Decimal.One, Decimal.Zero) > 0);
 667                     Assert.IsTrue(Decimal.Compare(Decimal.MinusOne, Decimal.Zero) < 0);
 668                     Assert.IsTrue(Decimal.Compare(Decimal.Zero, Decimal.MinusOne) > 0);
 669                     Assert.IsTrue(Decimal.Compare(5, 3) > 0);
 670                     Assert.IsTrue(Decimal.Compare(5, 5) == 0);
 671                     Assert.IsTrue(Decimal.Compare(5, 9) < 0);
 672                     Assert.IsTrue(Decimal.Compare(-123.123m, 123.123m) < 0);
 673                     Assert.IsTrue(Decimal.Compare(Decimal.MaxValue, Decimal.MaxValue) == 0);
 674                     Assert.IsTrue(Decimal.Compare(Decimal.MinValue, Decimal.MinValue) == 0);
 675                     Assert.IsTrue(Decimal.Compare(Decimal.MinValue, Decimal.MaxValue) < 0);
 676                     Assert.IsTrue(Decimal.Compare(Decimal.MaxValue, Decimal.MinValue) > 0);
 677                 }
 678
 679                 [Test]
 680                 public void TestCompareTo()
 681                 {
 682                     // Int32 Decimal.CompareTo(Decimal)
 683                     Decimal d = 456;
 684                     Assert.IsTrue(d.CompareTo(456m) == 0);
 685                     Assert.IsTrue(d.CompareTo(457m) < 0);
 686                     Assert.IsTrue(d.CompareTo(455m) > 0);
 687                 }
 688
 689                 [Test]
 690                 public void TestSystemIComparableCompareTo()
 691                 {
 692                     // Int32 Decimal.System.IComparable.CompareTo(Object)
 693                     IComparable d = (Decimal)248;
 694                     Assert.IsTrue(d.CompareTo(248m) == 0);
 695                     Assert.IsTrue(d.CompareTo(249m) < 0);
 696                     Assert.IsTrue(d.CompareTo(247m) > 0);
 697                     Assert.IsTrue(d.CompareTo(null) > 0);
 698
 699                     AssertExtensions.Throws<ArgumentException>(() => d.CompareTo("248"), "Expected an argument exception");
 700                 }
 701
 702                 [Test]
 703                 public void TestGetHashCode()
 704                 {
 705                     // Int32 Decimal.GetHashCode()
 706                     Assert.AreNotEqual(Decimal.MinusOne.GetHashCode(), Decimal.One.GetHashCode());
 707                 }
 708
 709                 [Test]
 710                 public void TestToSingle()
 711                 {
 712                     // Single Decimal.ToSingle(Decimal)
 713                     Single s = 12345.12f;
 714                     Assert.AreEqual(s, Decimal.ToSingle((Decimal)s));
 715                     Assert.AreEqual(-s, Decimal.ToSingle((Decimal)(-s)));
 716
 717                     s = 1e20f;
 718                     Assert.AreEqual(s, Decimal.ToSingle((Decimal)s));
 719                     Assert.AreEqual(-s, Decimal.ToSingle((Decimal)(-s)));
 720
 721                     s = 1e27f;
 722                     Assert.AreEqual(s, Decimal.ToSingle((Decimal)s));
 723                     Assert.AreEqual(-s, Decimal.ToSingle((Decimal)(-s)));
 724                 }
 725
 726                 [Test]
 727                 public void TestToDouble()
 728                 {
 729                     Double d = Decimal.ToDouble(new Decimal(0, 0, 1, false, 0));
 730
 731                     // Double Decimal.ToDouble(Decimal)
 732                     Double dbl = 123456789.123456;
 733                     Assert.AreEqual(dbl, Decimal.ToDouble((Decimal)dbl));
 734                     Assert.AreEqual(-dbl, Decimal.ToDouble((Decimal)(-dbl)));
 735
 736                     dbl = 1e20;
 737                     Assert.AreEqual(dbl, Decimal.ToDouble((Decimal)dbl));
 738                     Assert.AreEqual(-dbl, Decimal.ToDouble((Decimal)(-dbl)));
 739
 740                     dbl = 1e27;
 741                     Assert.AreEqual(dbl, Decimal.ToDouble((Decimal)dbl));
 742                     Assert.AreEqual(-dbl, Decimal.ToDouble((Decimal)(-dbl)));
 743
 744                     dbl = Int64.MaxValue;
 745                     // Need to pass in the Int64.MaxValue to ToDouble and not dbl because the conversion to double is a little lossy and we want precision
 746                     Assert.AreEqual(dbl, Decimal.ToDouble((Decimal)Int64.MaxValue));
 747                     Assert.AreEqual(-dbl, Decimal.ToDouble((Decimal)(-Int64.MaxValue)));
 748                 }
 749
 750                 [Test]
 751                 public void TestToInt16()
 752                 {
 753                     // Int16 Decimal.ToInt16(Decimal)
 754                     Assert.AreEqual(Int16.MaxValue, Decimal.ToInt16((Decimal)Int16.MaxValue));
 755                     Assert.AreEqual(Int16.MinValue, Decimal.ToInt16((Decimal)Int16.MinValue));
 756                 }
 757
 758                 [Test]
 759                 public void TestToInt32()
 760                 {
 761                     // Int32 Decimal.ToInt32(Decimal)
 762                     Assert.AreEqual(Int32.MaxValue, Decimal.ToInt32((Decimal)Int32.MaxValue));
 763                     Assert.AreEqual(Int32.MinValue, Decimal.ToInt32((Decimal)Int32.MinValue));
 764                 }
 765
 766                 [Test]
 767                 public void TestGetBits()
 768                 {
 769                     // Int32[] Decimal.GetBits(Decimal)
 770                 }
 771
 772                 [Test]
 773                 public void TestToInt64()
 774                 {
 775                     // Int64 Decimal.ToInt64(Decimal)
 776                     Assert.AreEqual(Int64.MaxValue, Decimal.ToInt64((Decimal)Int64.MaxValue));
 777                     Assert.AreEqual(Int64.MinValue, Decimal.ToInt64((Decimal)Int64.MinValue));
 778                 }
 779
 780                 [Test]
 781                 public void TestToSByte()
 782                 {
 783                     // SByte Decimal.ToSByte(Decimal)
 784                     Assert.AreEqual(SByte.MaxValue, Decimal.ToSByte((Decimal)SByte.MaxValue));
 785                     Assert.AreEqual(SByte.MinValue, Decimal.ToSByte((Decimal)SByte.MinValue));
 786                 }
 787
 788                 [Test]
 789                 public void TestToUInt16()
 790                 {
 791                     // UInt16 Decimal.ToUInt16(Decimal)
 792                     Assert.AreEqual(UInt16.MaxValue, Decimal.ToUInt16((Decimal)UInt16.MaxValue));
 793                     Assert.AreEqual(UInt16.MinValue, Decimal.ToUInt16((Decimal)UInt16.MinValue));
 794                 }
 795
 796                 [Test]
 797                 public void TestToUInt32()
 798                 {
 799                     // UInt32 Decimal.ToUInt32(Decimal)
 800                     Assert.AreEqual(UInt32.MaxValue, Decimal.ToUInt32((Decimal)UInt32.MaxValue));
 801                     Assert.AreEqual(UInt32.MinValue, Decimal.ToUInt32((Decimal)UInt32.MinValue));
 802                 }
 803
 804                 [Test]
 805                 public void TestToUInt64()
 806                 {
 807                     // UInt64 Decimal.ToUInt64(Decimal)
 808                     Assert.AreEqual(UInt64.MaxValue, Decimal.ToUInt64((Decimal)UInt64.MaxValue));
 809                     Assert.AreEqual(UInt64.MinValue, Decimal.ToUInt64((Decimal)UInt64.MinValue));
 810                 }
 811
 812                 [Test]
 813                 [Culture ("en")]
 814                 public void TestToString()
 815                 {
 816                     // String Decimal.ToString()
 817                     Decimal d1 = 6310.23m;
 818                     Assert.AreEqual("6310.23", d1.ToString());
 819
 820                     Decimal d2 = -8249.000003m;
 821                     Assert.AreEqual("-8249.000003", d2.ToString());
 822
 823                     Assert.AreEqual("79228162514264337593543950335", Decimal.MaxValue.ToString());
 824                     Assert.AreEqual("-79228162514264337593543950335", Decimal.MinValue.ToString());
 825                 }
 826
 827                 [Test]
 828                 public void Testctor()
 829                 {
 830                     Decimal d;
 831                     // Void Decimal..ctor(Double)
 832                     d = new Decimal((Double)123456789.123456);
 833                     Assert.AreEqual(d, (Decimal)123456789.123456);
 834
 835                     // Void Decimal..ctor(Int32)
 836                     d = new Decimal((Int32)Int32.MaxValue);
 837                     Assert.AreEqual(d, Int32.MaxValue);
 838
 839                     // Void Decimal..ctor(Int64)
 840                     d = new Decimal((Int64)Int64.MaxValue);
 841                     Assert.AreEqual(d, Int64.MaxValue);
 842
 843                     // Void Decimal..ctor(Single)
 844                     d = new Decimal((Single)123.123);
 845                     Assert.AreEqual(d, (Decimal)123.123);
 846
 847                     // Void Decimal..ctor(UInt32)
 848                     d = new Decimal((UInt32)UInt32.MaxValue);
 849                     Assert.AreEqual(d, UInt32.MaxValue);
 850
 851                     // Void Decimal..ctor(UInt64)
 852                     d = new Decimal((UInt64)UInt64.MaxValue);
 853                     Assert.AreEqual(d, UInt64.MaxValue);
 854
 855                     // Void Decimal..ctor(Int32, Int32, Int32, Boolean, Byte)
 856                     d = new Decimal(1, 1, 1, false, 0);
 857                     Decimal d2 = 3;
 858                     d2 += UInt32.MaxValue;
 859                     d2 += UInt64.MaxValue;
 860                     Assert.AreEqual(d, d2);
 861
 862                     // Void Decimal..ctor(Int32[])
 863                     d = new Decimal(new Int32[] { 1, 1, 1, 0 });
 864                     Assert.AreEqual(d, d2);
 865                 }
 866
 867                 [Test]
 868                 [Culture ("en")]
 869                 public void TestNumberBufferLimit()
 870                 {
 871                     Decimal dE = 1234567890123456789012345.6785m;
 872                     string s1 = "1234567890123456789012345.678456";
 873                     Decimal d1 = Decimal.Parse(s1);
 874                     Assert.AreEqual(d1, dE);
 875                     return;
 876                 }
 877         }
 878 }