mcs/class/corlib/Test/System/DoubleTest.cs

   1 // DoubleTest.cs - NUnit Test Cases for the System.Double class
   2 //
   3 // Bob Doan <bdoan@sicompos.com>
   4 //
   5 // (C) Ximian, Inc.  http://www.ximian.com
   6 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   7 //
   8
   9 using System;
  10 using System.Collections;
  11 using System.Globalization;
  12 using System.Threading;
  13
  14 using NUnit.Framework;
  15
  16 namespace MonoTests.System
  17 {
  18         [TestFixture]
  19         public class DoubleTest
  20         {
  21                 private const Double d_zero = 0.0;
  22                 private const Double d_neg = -1234.5678;
  23                 private const Double d_pos = 1234.9999;
  24                 private const Double d_pos2 = 1234.9999;
  25                 private const Double d_nan = Double.NaN;
  26                 private const Double d_pinf = Double.PositiveInfinity;
  27                 private const Double d_ninf = Double.NegativeInfinity;
  28                 private const String s = "What Ever";
  29                 private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
  30
  31                 private string [] string_values;
  32                 private string [] string_values_fail = {
  33                         "",     // empty
  34                         "- 1.0", // Inner whitespace
  35                         "3 5" // Inner whitespace 2
  36                 };
  37
  38                 private double [] double_values = {
  39                         1, .1, 1.1, -12, 44.444432, .000021121,
  40                         .00001, .223, -221.3233,
  41                         1.7976931348623157e308, 1.7976931348623157e308, -1.7976931348623157e308,
  42                         4.9406564584124650e-324,
  43                         6.28318530717958647692528676655900577,
  44                         1e-05,
  45                         0,
  46                 };
  47
  48                 [SetUp]
  49                 public void Setup ()
  50                 {
  51                         string sep = NumberFormatInfo.CurrentInfo.NumberDecimalSeparator;
  52                         string_values = new string [15];
  53                         string_values [0] = "1";
  54                         string_values [1] = sep + "1";
  55                         string_values [2] = "1" + sep + "1";
  56                         string_values [3] = "-12";
  57                         string_values [4] = "44" + sep + "444432";
  58                         string_values [5] = sep + "000021121";
  59                         string_values [6] = "   " + sep + "00001";
  60                         string_values [7] = "  " + sep + "223    ";
  61                         string_values [8] = "         -221" + sep + "3233";
  62                         string_values [9] = " 1" + sep + "7976931348623157e308 ";
  63                         string_values [10] = "+1" + sep + "7976931348623157E308";
  64                         string_values [11] = "-1" + sep + "7976931348623157e308";
  65                         string_values [12] = "4" + sep + "9406564584124650e-324";
  66                         string_values [13] = "6" + sep + "28318530717958647692528676655900577";
  67                         string_values [14] = "1e-05";
  68                 }
  69
  70                 [Test]
  71                 public void PublicFields ()
  72                 {
  73                         Assert.AreEqual (3.9406564584124654e-324, Double.Epsilon, "#1");
  74                         Assert.AreEqual (1.7976931348623157e+308, Double.MaxValue, "#2");
  75                         Assert.AreEqual (-1.7976931348623157e+308, Double.MinValue, "#3");
  76                         Assert.AreEqual ((double) -1.0 / (double) (0.0), Double.NegativeInfinity, "#4");
  77                         Assert.AreEqual ((double) 1.0 / (double) (0.0), Double.PositiveInfinity, "#5");
  78                 }
  79
  80                 [Test]
  81                 public void CompareTo ()
  82                 {
  83                         //If you do int foo =  d_ninf.CompareTo(d_pinf); Assertion.Assert(".." foo < 0, true) this works.... WHY???
  84                         Assert.IsTrue (d_ninf.CompareTo (d_pinf) < 0, "#A1");
  85                         Assert.IsTrue (d_neg.CompareTo (d_pos) < 0, "#A2");
  86                         Assert.IsTrue (d_nan.CompareTo (d_neg) < 0, "#A3");
  87
  88                         Assert.AreEqual (0, d_pos.CompareTo (d_pos2), "#B1");
  89                         Assert.AreEqual (0, d_pinf.CompareTo (d_pinf), "#B2");
  90                         Assert.AreEqual (0, d_ninf.CompareTo (d_ninf), "#B3");
  91                         Assert.AreEqual (0, d_nan.CompareTo (d_nan), "#B4");
  92
  93                         Assert.IsTrue (d_pos.CompareTo (d_neg) > 0, "#C1");
  94                         Assert.IsTrue (d_pos.CompareTo (d_nan) > 0, "#C2");
  95                         Assert.IsTrue (d_pos.CompareTo (null) > 0, "#C3");
  96
  97                         try {
  98                                 d_pos.CompareTo (s);
  99                                 Assert.Fail ("#D1");
 100                         } catch (ArgumentException ex) {
 101                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#D2");
 102                         }
 103                 }
 104
 105                 [Test]
 106                 public void Equals ()
 107                 {
 108                         Assert.IsTrue (d_pos.Equals (d_pos2), "#1");
 109                         Assert.IsFalse (d_pos.Equals (d_neg), "#2");
 110                         Assert.IsFalse (d_pos.Equals (s), "#3");
 111                 }
 112
 113                 [Test]
 114                 public void TestTypeCode ()
 115                 {
 116                         Assert.AreEqual (TypeCode.Double, d_pos.GetTypeCode ());
 117                 }
 118
 119                 [Test]
 120                 public void IsInfinity ()
 121                 {
 122                         Assert.IsTrue (Double.IsInfinity (Double.PositiveInfinity), "#1");
 123                         Assert.IsTrue (Double.IsInfinity (Double.NegativeInfinity), "#2");
 124                         Assert.IsFalse (Double.IsInfinity (12), "#3");
 125                 }
 126
 127                 [Test]
 128                 public void IsNan ()
 129                 {
 130                         Assert.IsTrue (Double.IsNaN (Double.NaN), "#1");
 131                         Assert.IsFalse (Double.IsNaN (12), "#2");
 132                         Assert.IsFalse (Double.IsNaN (Double.PositiveInfinity), "#3");
 133                 }
 134
 135                 [Test]
 136                 public void IsNegativeInfinity ()
 137                 {
 138                         Assert.IsTrue (Double.IsNegativeInfinity (Double.NegativeInfinity), "#1");
 139                         Assert.IsFalse (Double.IsNegativeInfinity (12), "#2");
 140                 }
 141
 142                 [Test]
 143                 public void IsPositiveInfinity ()
 144                 {
 145                         Assert.IsTrue (Double.IsPositiveInfinity (Double.PositiveInfinity), "#1");
 146                         Assert.IsFalse (Double.IsPositiveInfinity (12), "#2");
 147                 }
 148
 149                 [Test]
 150                 public void Parse ()
 151                 {
 152                         int i = 0;
 153                         try {
 154                                 for (i = 0; i < string_values.Length; i++) {
 155                                         Assert.AreEqual (double_values [i], Double.Parse (string_values [i]), "#A1");
 156                                 }
 157                         } catch (Exception e) {
 158                                 Assert.Fail ("#A2: i=" + i + " failed with e = " + e.ToString ());
 159                         }
 160
 161                         try {
 162                                 Assert.AreEqual (10.1111, Double.Parse (" 10.1111 ", NumberStyles.Float, Nfi), "#B1");
 163                         } catch (Exception e) {
 164                                 Assert.Fail ("#B2: Parse Failed NumberStyles.Float with e = " + e.ToString ());
 165                         }
 166
 167                         try {
 168                                 Assert.AreEqual (1234.5678, Double.Parse ("1,234.5678", NumberStyles.Float | NumberStyles.AllowThousands, Nfi), "#C1");
 169                         } catch (Exception e) {
 170                                 Assert.Fail ("#C2: Parse Failed NumberStyles.AllowThousands with e = " + e.ToString ());
 171                         }
 172
 173                         try {
 174                                 Double.Parse (null);
 175                                 Assert.Fail ("#D1");
 176                         } catch (ArgumentNullException ex) {
 177                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#D2");
 178                                 Assert.IsNull (ex.InnerException, "#D3");
 179                                 Assert.IsNotNull (ex.Message, "#D4");
 180                                 Assert.IsNotNull (ex.ParamName, "#D5");
 181                         }
 182
 183                         try {
 184                                 Double.Parse ("save the elk");
 185                                 Assert.Fail ("#E1");
 186                         } catch (FormatException ex) {
 187                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#E2");
 188                                 Assert.IsNull (ex.InnerException, "#E3");
 189                                 Assert.IsNotNull (ex.Message, "#E4");
 190                         }
 191
 192                         string sep = NumberFormatInfo.CurrentInfo.NumberDecimalSeparator;
 193                         double ovf_plus = 0;
 194                         try {
 195                                 ovf_plus = Double.Parse ("1" + sep + "79769313486232e308");
 196                                 Assert.Fail ("#F1");
 197                         } catch (OverflowException ex) {
 198                                 Assert.AreEqual (typeof (OverflowException), ex.GetType (), "#F2");
 199                                 Assert.IsNull (ex.InnerException, "#F3");
 200                                 Assert.IsNotNull (ex.Message, "#F4");
 201                         }
 202
 203                         try {
 204                                 Double.Parse ("-1" + sep + "79769313486232e308");
 205                                 Assert.Fail ("#G1");
 206                         } catch (OverflowException ex) {
 207                                 Assert.AreEqual (typeof (OverflowException), ex.GetType (), "#G2");
 208                                 Assert.IsNull (ex.InnerException, "#G3");
 209                                 Assert.IsNotNull (ex.Message, "#G4");
 210                         }
 211
 212                         for (i = 0; i < string_values_fail.Length; ++i) {
 213                                 try {
 214                                         Double.Parse (string_values_fail [i]);
 215                                         Assert.Fail ("#H1: " + string_values_fail [i]);
 216                                 } catch (FormatException ex) {
 217                                         Assert.AreEqual (typeof (FormatException), ex.GetType (), "#H2");
 218                                         Assert.IsNull (ex.InnerException, "#H3");
 219                                         Assert.IsNotNull (ex.Message, "#H4");
 220                                 }
 221                         }
 222                 }
 223
 224                 [Test]
 225                 public void ParseAllowWhitespaces ()
 226                 {
 227                         var nf = CultureInfo.CurrentCulture.NumberFormat;
 228                         NumberStyles style = NumberStyles.Float;
 229                         double.Parse (" 32 ");
 230                         double.Parse (string.Format ("  {0}  ", nf.PositiveInfinitySymbol));
 231                         double.Parse (string.Format ("  {0}  ", nf.NegativeInfinitySymbol));
 232                         double.Parse (string.Format ("  {0}  ", nf.NaNSymbol));
 233                 }
 234
 235                 [Test] // bug #81630
 236                 public void Parse_Whitespace ()
 237                 {
 238                         try {
 239                                 double.Parse (" ");
 240                                 Assert.Fail ("#1");
 241                         } catch (FormatException ex) {
 242                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#2");
 243                                 Assert.IsNull (ex.InnerException, "#3");
 244                                 Assert.IsNotNull (ex.Message, "#4");
 245                         }
 246                 }
 247
 248                 [Test] // //bug #81777
 249                 public void Parse_TrailingGarbage ()
 250                 {
 251                         try {
 252                                 double.Parse ("22 foo");
 253                                 Assert.Fail ("#1");
 254                         } catch (FormatException ex) {
 255                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#2");
 256                                 Assert.IsNull (ex.InnerException, "#3");
 257                                 Assert.IsNotNull (ex.Message, "#4");
 258                         }
 259                 }
 260
 261                 [Test]
 262                 public void TestToString ()
 263                 {
 264                         try {
 265                                 double d = 3.1415;
 266                                 d.ToString ("X");
 267                                 Assert.Fail ("#A1");
 268                         } catch (FormatException ex) {
 269                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#A2");
 270                                 Assert.IsNull (ex.InnerException, "#A3");
 271                                 Assert.IsNotNull (ex.Message, "#A4");
 272                         }
 273
 274                         try {
 275                                 double d = 3.1415;
 276                                 d.ToString ("D");
 277                                 Assert.Fail ("#B1");
 278                         } catch (FormatException ex) {
 279                                 Assert.AreEqual (typeof (FormatException), ex.GetType (), "#B2");
 280                                 Assert.IsNull (ex.InnerException, "#B3");
 281                                 Assert.IsNotNull (ex.Message, "#B4");
 282                         }
 283
 284                         CustomFormatHelper ();
 285                 }
 286
 287                 private class Element
 288                 {
 289                         public double value;
 290                         public string format;
 291                         public string result;
 292
 293                         public Element (double value, string format, string result)
 294                         {
 295                                 this.value = value;
 296                                 this.format = format;
 297                                 this.result = result;
 298                         }
 299                 }
 300
 301                 public void CustomFormatHelper ()
 302                 {
 303                         NumberFormatInfo nfi = new NumberFormatInfo ();
 304
 305                         nfi.NaNSymbol = "NaN";
 306                         nfi.PositiveSign = "+";
 307                         nfi.NegativeSign = "-";
 308                         nfi.PerMilleSymbol = "x";
 309                         nfi.PositiveInfinitySymbol = "Infinity";
 310                         nfi.NegativeInfinitySymbol = "-Infinity";
 311
 312                         nfi.NumberDecimalDigits = 5;
 313                         nfi.NumberDecimalSeparator = ".";
 314                         nfi.NumberGroupSeparator = ",";
 315                         nfi.NumberGroupSizes = new int [] { 3 };
 316                         nfi.NumberNegativePattern = 2;
 317
 318                         nfi.CurrencyDecimalDigits = 2;
 319                         nfi.CurrencyDecimalSeparator = ".";
 320                         nfi.CurrencyGroupSeparator = ",";
 321                         nfi.CurrencyGroupSizes = new int [] { 3 };
 322                         nfi.CurrencyNegativePattern = 8;
 323                         nfi.CurrencyPositivePattern = 3;
 324                         nfi.CurrencySymbol = "$";
 325
 326                         nfi.PercentDecimalDigits = 5;
 327                         nfi.PercentDecimalSeparator = ".";
 328                         nfi.PercentGroupSeparator = ",";
 329                         nfi.PercentGroupSizes = new int [] { 3 };
 330                         nfi.PercentNegativePattern = 0;
 331                         nfi.PercentPositivePattern = 0;
 332                         nfi.PercentSymbol = "%";
 333
 334                         ArrayList list = new ArrayList ();
 335                         list.Add (new Element (123d, "#####", "123"));
 336                         list.Add (new Element (123d, "00000", "00123"));
 337                         list.Add (new Element (123d, "(###) ### - ####", "()  - 123"));
 338                         list.Add (new Element (123d, "#.##", "123"));
 339                         list.Add (new Element (123d, "0.00", "123.00"));
 340                         list.Add (new Element (123d, "00.00", "123.00"));
 341                         list.Add (new Element (123d, "#,#", "123"));
 342                         list.Add (new Element (123d, "#,,", ""));
 343                         list.Add (new Element (123d, "#,,,", ""));
 344                         list.Add (new Element (123d, "#,##0,,", "0"));
 345                         list.Add (new Element (123d, "#0.##%", "12300%"));
 346                         list.Add (new Element (123d, "0.###E+0", "1.23E+2"));
 347                         list.Add (new Element (123d, "0.###E+000", "1.23E+002"));
 348                         list.Add (new Element (123d, "0.###E-000", "1.23E002"));
 349                         list.Add (new Element (123d, "[##-##-##]", "[-1-23]"));
 350                         list.Add (new Element (123d, "##;(##)", "123"));
 351                         list.Add (new Element (123d, "##;(##)", "123"));
 352                         list.Add (new Element (1234567890d, "#####", "1234567890"));
 353                         list.Add (new Element (1234567890d, "00000", "1234567890"));
 354                         list.Add (new Element (1234567890d,
 355                                                 "(###) ### - ####", "(123) 456 - 7890"));
 356                         list.Add (new Element (1234567890d, "#.##", "1234567890"));
 357                         list.Add (new Element (1234567890d, "0.00", "1234567890.00"));
 358                         list.Add (new Element (1234567890d, "00.00", "1234567890.00"));
 359                         list.Add (new Element (1234567890d, "#,#", "1,234,567,890"));
 360                         list.Add (new Element (1234567890d, "#,,", "1235"));
 361                         list.Add (new Element (1234567890d, "#,,,", "1"));
 362                         list.Add (new Element (1234567890d, "#,##0,,", "1,235"));
 363                         list.Add (new Element (1234567890d, "#0.##%", "123456789000%"));
 364                         list.Add (new Element (1234567890d, "0.###E+0", "1.235E+9"));
 365                         list.Add (new Element (1234567890d, "0.###E+000", "1.235E+009"));
 366                         list.Add (new Element (1234567890d, "0.###E-000", "1.235E009"));
 367                         list.Add (new Element (1234567890d, "[##-##-##]", "[123456-78-90]"));
 368                         list.Add (new Element (1234567890d, "##;(##)", "1234567890"));
 369                         list.Add (new Element (1234567890d, "##;(##)", "1234567890"));
 370                         list.Add (new Element (1.2d, "#####", "1"));
 371                         list.Add (new Element (1.2d, "00000", "00001"));
 372                         list.Add (new Element (1.2d, "(###) ### - ####", "()  - 1"));
 373                         list.Add (new Element (1.2d, "#.##", "1.2"));
 374                         list.Add (new Element (1.2d, "0.00", "1.20"));
 375                         list.Add (new Element (1.2d, "00.00", "01.20"));
 376                         list.Add (new Element (1.2d, "#,#", "1"));
 377                         list.Add (new Element (1.2d, "#,,", ""));
 378                         list.Add (new Element (1.2d, "#,,,", ""));
 379                         list.Add (new Element (1.2d, "#,##0,,", "0"));
 380                         list.Add (new Element (1.2d, "#0.##%", "120%"));
 381                         list.Add (new Element (1.2d, "0.###E+0", "1.2E+0"));
 382                         list.Add (new Element (1.2d, "0.###E+000", "1.2E+000"));
 383                         list.Add (new Element (1.2d, "0.###E-000", "1.2E000"));
 384                         list.Add (new Element (1.2d, "[##-##-##]", "[--1]"));
 385                         list.Add (new Element (1.2d, "##;(##)", "1"));
 386                         list.Add (new Element (1.2d, "##;(##)", "1"));
 387                         list.Add (new Element (0.086d, "#####", ""));
 388                         list.Add (new Element (0.086d, "00000", "00000"));
 389                         list.Add (new Element (0.086d, "(###) ### - ####", "()  - "));
 390                         list.Add (new Element (0.086d, "#.##", ".09"));
 391                         list.Add (new Element (0.086d, "#.#", ".1"));
 392                         list.Add (new Element (0.086d, "0.00", "0.09"));
 393                         list.Add (new Element (0.086d, "00.00", "00.09"));
 394                         list.Add (new Element (0.086d, "#,#", ""));
 395                         list.Add (new Element (0.086d, "#,,", ""));
 396                         list.Add (new Element (0.086d, "#,,,", ""));
 397                         list.Add (new Element (0.086d, "#,##0,,", "0"));
 398                         list.Add (new Element (0.086d, "#0.##%", "8.6%"));
 399                         list.Add (new Element (0.086d, "0.###E+0", "8.6E-2"));
 400                         list.Add (new Element (0.086d, "0.###E+000", "8.6E-002"));
 401                         list.Add (new Element (0.086d, "0.###E-000", "8.6E-002"));
 402                         list.Add (new Element (0.086d, "[##-##-##]", "[--]"));
 403                         list.Add (new Element (0.086d, "##;(##)", ""));
 404                         list.Add (new Element (0.086d, "##;(##)", ""));
 405                         list.Add (new Element (86000d, "#####", "86000"));
 406                         list.Add (new Element (86000d, "00000", "86000"));
 407                         list.Add (new Element (86000d, "(###) ### - ####", "() 8 - 6000"));
 408                         list.Add (new Element (86000d, "#.##", "86000"));
 409                         list.Add (new Element (86000d, "0.00", "86000.00"));
 410                         list.Add (new Element (86000d, "00.00", "86000.00"));
 411                         list.Add (new Element (86000d, "#,#", "86,000"));
 412                         list.Add (new Element (86000d, "#,,", ""));
 413                         list.Add (new Element (86000d, "#,,,", ""));
 414                         list.Add (new Element (86000d, "#,##0,,", "0"));
 415                         list.Add (new Element (86000d, "#0.##%", "8600000%"));
 416                         list.Add (new Element (86000d, "0.###E+0", "8.6E+4"));
 417                         list.Add (new Element (86000d, "0.###E+000", "8.6E+004"));
 418                         list.Add (new Element (86000d, "0.###E-000", "8.6E004"));
 419                         list.Add (new Element (86000d, "[##-##-##]", "[8-60-00]"));
 420                         list.Add (new Element (86000d, "##;(##)", "86000"));
 421                         list.Add (new Element (86000d, "##;(##)", "86000"));
 422                         list.Add (new Element (123456d, "#####", "123456"));
 423                         list.Add (new Element (123456d, "00000", "123456"));
 424                         list.Add (new Element (123456d, "(###) ### - ####", "() 12 - 3456"));
 425                         list.Add (new Element (123456d, "#.##", "123456"));
 426                         list.Add (new Element (123456d, "0.00", "123456.00"));
 427                         list.Add (new Element (123456d, "00.00", "123456.00"));
 428                         list.Add (new Element (123456d, "#,#", "123,456"));
 429                         list.Add (new Element (123456d, "#,,", ""));
 430                         list.Add (new Element (123456d, "#,,,", ""));
 431                         list.Add (new Element (123456d, "#,##0,,", "0"));
 432                         list.Add (new Element (123456d, "#0.##%", "12345600%"));
 433                         list.Add (new Element (123456d, "0.###E+0", "1.235E+5"));
 434                         list.Add (new Element (123456d, "0.###E+000", "1.235E+005"));
 435                         list.Add (new Element (123456d, "0.###E-000", "1.235E005"));
 436                         list.Add (new Element (123456d, "[##-##-##]", "[12-34-56]"));
 437                         list.Add (new Element (123456d, "##;(##)", "123456"));
 438                         list.Add (new Element (123456d, "##;(##)", "123456"));
 439                         list.Add (new Element (1234d, "#####", "1234"));
 440                         list.Add (new Element (1234d, "00000", "01234"));
 441                         list.Add (new Element (1234d, "(###) ### - ####", "()  - 1234"));
 442                         list.Add (new Element (1234d, "#.##", "1234"));
 443                         list.Add (new Element (1234d, "0.00", "1234.00"));
 444                         list.Add (new Element (1234d, "00.00", "1234.00"));
 445                         list.Add (new Element (1234d, "#,#", "1,234"));
 446                         list.Add (new Element (1234d, "#,,", ""));
 447                         list.Add (new Element (1234d, "#,,,", ""));
 448                         list.Add (new Element (1234d, "#,##0,,", "0"));
 449                         list.Add (new Element (1234d, "#0.##%", "123400%"));
 450                         list.Add (new Element (1234d, "0.###E+0", "1.234E+3"));
 451                         list.Add (new Element (1234d, "0.###E+000", "1.234E+003"));
 452                         list.Add (new Element (1234d, "0.###E-000", "1.234E003"));
 453                         list.Add (new Element (1234d, "[##-##-##]", "[-12-34]"));
 454                         list.Add (new Element (1234d, "##;(##)", "1234"));
 455                         list.Add (new Element (1234d, "##;(##)", "1234"));
 456                         list.Add (new Element (-1234d, "#####", "-1234"));
 457                         list.Add (new Element (-1234d, "00000", "-01234"));
 458                         list.Add (new Element (-1234d, "(###) ### - ####", "-()  - 1234"));
 459                         list.Add (new Element (-1234d, "#.##", "-1234"));
 460                         list.Add (new Element (-1234d, "0.00", "-1234.00"));
 461                         list.Add (new Element (-1234d, "00.00", "-1234.00"));
 462                         list.Add (new Element (-1234d, "#,#", "-1,234"));
 463                         list.Add (new Element (-1234d, "#,,", ""));
 464                         list.Add (new Element (-1234d, "#,,,", ""));
 465                         list.Add (new Element (-1234d, "#,##0,,", "0"));
 466                         list.Add (new Element (-1234d, "#0.##%", "-123400%"));
 467                         list.Add (new Element (-1234d, "0.###E+0", "-1.234E+3"));
 468                         list.Add (new Element (-1234d, "0.###E+000", "-1.234E+003"));
 469                         list.Add (new Element (-1234d, "0.###E-000", "-1.234E003"));
 470                         list.Add (new Element (-1234d, "[##-##-##]", "-[-12-34]"));
 471                         list.Add (new Element (-1234d, "##;(##)", "(1234)"));
 472                         list.Add (new Element (-1234d, "##;(##)", "(1234)"));
 473                         list.Add (new Element (12345678901234567890.123d,
 474                                                 "#####", "12345678901234600000"));
 475                         list.Add (new Element (12345678901234567890.123d,
 476                                                 "00000", "12345678901234600000"));
 477                         list.Add (new Element (12345678901234567890.123d,
 478                                                 "(###) ### - ####", "(1234567890123) 460 - 0000"));
 479                         list.Add (new Element (12345678901234567890.123d,
 480                                                 "#.##", "12345678901234600000"));
 481                         list.Add (new Element (12345678901234567890.123d,
 482                                                 "0.00", "12345678901234600000.00"));
 483                         list.Add (new Element (12345678901234567890.123d,
 484                                                 "00.00", "12345678901234600000.00"));
 485                         list.Add (new Element (12345678901234567890.123d,
 486                                                 "#,#", "12,345,678,901,234,600,000"));
 487                         list.Add (new Element (12345678901234567890.123d,
 488                                                 "#,,", "12345678901235"));
 489                         list.Add (new Element (12345678901234567890.123d,
 490                                                 "#,,,", "12345678901"));
 491                         list.Add (new Element (12345678901234567890.123d,
 492                                                 "#,##0,,", "12,345,678,901,235"));
 493                         list.Add (new Element (12345678901234567890.123d,
 494                                                 "#0.##%", "1234567890123460000000%"));
 495                         list.Add (new Element (12345678901234567890.123d,
 496                                                 "0.###E+0", "1.235E+19"));
 497                         list.Add (new Element (12345678901234567890.123d,
 498                                                 "0.###E+000", "1.235E+019"));
 499                         list.Add (new Element (12345678901234567890.123d,
 500                                                 "0.###E-000", "1.235E019"));
 501                         list.Add (new Element (12345678901234567890.123d,
 502                                                 "[##-##-##]", "[1234567890123460-00-00]"));
 503                         list.Add (new Element (12345678901234567890.123d,
 504                                                 "##;(##)", "12345678901234600000"));
 505                         list.Add (new Element (12345678901234567890.123d,
 506                                                 "##;(##)", "12345678901234600000"));
 507                         foreach (Element e in list) {
 508                                 Assert.AreEqual (e.result, e.value.ToString (e.format, nfi),
 509                                         "ToString Failed: '" + e.value + "' Should be \"" + e.result + "\" with \"" + e.format + "\"");
 510                         }
 511                 }
 512
 513                 [Test]
 514                 public void ToString_Defaults ()
 515                 {
 516                         CultureInfo originalCulture = CultureInfo.CurrentCulture;
 517                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("nl-BE");
 518                         try {
 519                                 Double i = 254.9d;
 520                                 // everything defaults to "G"
 521                                 string def = i.ToString ("G");
 522                                 Assert.AreEqual (def, i.ToString (), "#1");
 523                                 Assert.AreEqual (def, i.ToString ((IFormatProvider) null), "#2");
 524                                 Assert.AreEqual (def, i.ToString ((string) null), "#3");
 525                                 Assert.AreEqual (def, i.ToString (String.Empty), "#4");
 526                                 Assert.AreEqual (def, i.ToString (null, null), "#5");
 527                                 Assert.AreEqual (def, i.ToString (String.Empty, null), "#6");
 528                                 Assert.AreEqual ("254,9", def, "#7");
 529                         } finally {
 530                                 // restore original culture
 531                                 Thread.CurrentThread.CurrentCulture = originalCulture;
 532                         }
 533                 }
 534
 535                 [Test]
 536                 public void TestRoundtrip () // bug #320433
 537                 {
 538                         Assert.AreEqual ("10.78", 10.78.ToString ("R", NumberFormatInfo.InvariantInfo));
 539                 }
 540
 541                 [Test] // bug #72955
 542                 public void LongLongValueRoundtrip ()
 543                 {
 544                         CultureInfo originalCulture = CultureInfo.CurrentCulture;
 545                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("nl-BE");
 546                         try {
 547                                 double d = 0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000222;
 548                                 Assert.AreEqual ("1,97626258336499E-323", d.ToString ("R"));
 549                         } finally {
 550                                 // restore original culture
 551                                 Thread.CurrentThread.CurrentCulture = originalCulture;
 552                         }
 553                 }
 554
 555                 [Test]
 556                 [ExpectedException (typeof (ArgumentException))]
 557                 public void HexNumber_WithHexToParse ()
 558                 {
 559                         // from bug #72221
 560                         double d;
 561                         Assert.IsTrue (Double.TryParse ("0dead", NumberStyles.HexNumber, null, out d), "#1");
 562                         Assert.AreEqual (57842, d, "#2");
 563                 }
 564
 565                 [Test]
 566                 [ExpectedException (typeof (ArgumentException))]
 567                 public void HexNumber_NoHexToParse ()
 568                 {
 569                         double d;
 570                         Assert.IsTrue (Double.TryParse ("0", NumberStyles.HexNumber, null, out d), "#1");
 571                         Assert.AreEqual (0, d, "#2");
 572                 }
 573
 574                 [Test]
 575                 public void TryParseBug78546 ()
 576                 {
 577                         double value;
 578                         Assert.IsFalse (Double.TryParse ("error", NumberStyles.Integer,
 579                                 null, out value));
 580                 }
 581
 582                 [Test]
 583                 public void TryParse_NonDigitStrings ()
 584                 {
 585                         double value;
 586                         Assert.IsFalse (Double.TryParse ("string", NumberStyles.Any, null, out value), "#1");
 587                         Assert.IsFalse (Double.TryParse ("with whitespace", NumberStyles.Any, null, out value), "#2");
 588
 589                         Assert.IsFalse (Double.TryParse ("string", out value), "#3");
 590                         Assert.IsFalse (Double.TryParse ("with whitespace", out value), "#4");
 591                 }
 592
 593
 594                 [Test] // bug #77721
 595                 public void ParseCurrency ()
 596                 {
 597                         CultureInfo originalCulture = CultureInfo.CurrentCulture;
 598                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US");
 599                         try {
 600                                 NumberFormatInfo f = NumberFormatInfo.CurrentInfo;
 601                                 double d = double.Parse ("$4.56", NumberStyles.Currency, f);
 602                                 Assert.AreEqual (4.56, d);
 603                         } finally {
 604                                 Thread.CurrentThread.CurrentCulture = originalCulture;
 605                         }
 606                 }
 607
 608                 [Test]
 609                 public void ParseEmptyNumberGroupSeparator ()
 610                 {
 611                         CultureInfo originalCulture = CultureInfo.CurrentCulture;
 612                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US");
 613                         try {
 614                                 var nf = new NumberFormatInfo ();
 615                                 nf.NumberDecimalSeparator = ".";
 616                                 nf.NumberGroupSeparator = "";
 617                                 double d = double.Parse ("4.5", nf);
 618                                 Assert.AreEqual (4.5, d);
 619                         } finally {
 620                                 Thread.CurrentThread.CurrentCulture = originalCulture;
 621                         }
 622                 }
 623         }
 624 }