mcs/class/corlib/Test/System/UInt64Test.cs

   1 // UInt64Test.cs - NUnit Test Cases for the System.UInt64 struct
   2 //
   3 // Mario Martinez (mariom925@home.om)
   4 //
   5 // (C) Ximian, Inc.  http://www.ximian.com
   6 //
   7
   8 using NUnit.Framework;
   9 using System;
  10 using System.Globalization;
  11 using System.Threading;
  12
  13 namespace MonoTests.System
  14 {
  15
  16 [TestFixture]
  17 public class UInt64Test
  18 {
  19         private const UInt64 MyUInt64_1 = 42;
  20         private const UInt64 MyUInt64_2 = 0;
  21         private const UInt64 MyUInt64_3 = 18446744073709551615;
  22         private const string MyString1 = "42";
  23         private const string MyString2 = "0";
  24         private const string MyString3 = "18446744073709551615";
  25         private string[] Formats1 = {"c", "d", "e", "f", "g", "n", "p", "x" };
  26         private string[] Formats2 = {"c5", "d5", "e5", "f5", "g5", "n5", "p5", "x5" };
  27         private string[] Results1 = {"",
  28                                         "0", "0.000000e+000", "0.00",
  29                                         "0", "0.00", "0.00 %", "0"};
  30         private string[] ResultsNfi1 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"0.00",
  31                                         "0", "0.000000e+000", "0.00",
  32                                         "0", "0.00", "0.00 %", "0"};
  33         private string[] Results2 = {"",
  34                                         "18446744073709551615", "1.84467e+019", "18446744073709551615.00000",
  35                                         "1.8447e+19", "18,446,744,073,709,551,615.00000",
  36                                         "1,844,674,407,370,955,161,500.00000 %", "ffffffffffffffff"};
  37         private string[] ResultsNfi2 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"18,446,744,073,709,551,615.00000",
  38                                         "18446744073709551615", "1.84467e+019", "18446744073709551615.00000",
  39                                         "1.8447e+19", "18,446,744,073,709,551,615.00000",
  40                                         "1,844,674,407,370,955,161,500.00000 %", "ffffffffffffffff"};
  41
  42         private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
  43
  44         private CultureInfo old_culture;
  45
  46         [SetUp]
  47         public void SetUp()
  48         {
  49                 old_culture = Thread.CurrentThread.CurrentCulture;
  50
  51                 // Set culture to en-US and don't let the user override.
  52                 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
  53
  54                 // We can't initialize this until we set the culture.
  55
  56                 string decimals = new String ('0', NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
  57                 string perPattern = new string[] {"n %","n%","%n"} [NumberFormatInfo.CurrentInfo.PercentPositivePattern];
  58
  59                 Results1 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol + "0.00";
  60                 Results1 [3] = "0." + decimals;
  61                 Results1 [5] = "0." + decimals;
  62                 Results1 [6] = perPattern.Replace ("n","0.00");
  63
  64                 Results2 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol + "18,446,744,073,709,551,615.00000";
  65                 Results2 [6] = perPattern.Replace ("n","1,844,674,407,370,955,161,500.00000");
  66         }
  67
  68         [TearDown]
  69         public void TearDown ()
  70         {
  71                 Thread.CurrentThread.CurrentCulture = old_culture;
  72         }
  73
  74         [Test]
  75         public void TestMinMax()
  76         {
  77                 Assert.AreEqual(UInt64.MinValue, MyUInt64_2);
  78                 Assert.AreEqual(UInt64.MaxValue, MyUInt64_3);
  79         }
  80
  81         [Test]
  82         public void TestCompareTo()
  83         {
  84                 Assert.IsTrue(MyUInt64_3.CompareTo(MyUInt64_2) > 0);
  85                 Assert.IsTrue(MyUInt64_2.CompareTo(MyUInt64_2) == 0);
  86                 Assert.IsTrue(MyUInt64_1.CompareTo((UInt64)(42)) == 0);
  87                 Assert.IsTrue(MyUInt64_2.CompareTo(MyUInt64_3) < 0);
  88                 try {
  89                         MyUInt64_2.CompareTo((object)(Int16)100);
  90                         Assert.Fail("Should raise a System.ArgumentException");
  91                 }
  92                 catch (Exception e) {
  93                         Assert.IsTrue(typeof(ArgumentException) == e.GetType());
  94                 }
  95         }
  96
  97         [Test]
  98         public void TestEquals()
  99         {
 100                 Assert.IsTrue(MyUInt64_1.Equals(MyUInt64_1));
 101                 Assert.IsTrue(MyUInt64_1.Equals((object)(UInt64)(42)));
 102                 Assert.IsTrue(MyUInt64_1.Equals((object)(SByte)(42)) == false);
 103                 Assert.IsTrue(MyUInt64_1.Equals(MyUInt64_2) == false);
 104         }
 105
 106         [Test]
 107         public void TestGetHashCode()
 108         {
 109                 try {
 110                         MyUInt64_1.GetHashCode();
 111                         MyUInt64_2.GetHashCode();
 112                         MyUInt64_3.GetHashCode();
 113                 }
 114                 catch {
 115                         Assert.Fail("GetHashCode should not raise an exception here");
 116                 }
 117         }
 118
 119         [Test]
 120         public void TestParse()
 121         {
 122                 //test Parse(string s)
 123                 Assert.IsTrue(MyUInt64_1 == UInt64.Parse(MyString1));
 124                 Assert.IsTrue(MyUInt64_2 == UInt64.Parse(MyString2));
 125                 Assert.IsTrue(MyUInt64_3 == UInt64.Parse(MyString3));
 126                 try {
 127                         UInt64.Parse(null);
 128                         Assert.Fail("Should raise a ArgumentNullException");
 129                 }
 130                 catch (Exception e) {
 131                         Assert.IsTrue(typeof(ArgumentNullException) == e.GetType());
 132                 }
 133                 try {
 134                         UInt64.Parse("not-a-number");
 135                         Assert.Fail("Should raise a System.FormatException");
 136                 }
 137                 catch (Exception e) {
 138                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 139                 }
 140                 //test Parse(string s, NumberStyles style)
 141                 try {
 142                         double OverInt = (double)UInt64.MaxValue + 1;
 143                         UInt64.Parse(OverInt.ToString(), NumberStyles.Float);
 144                         Assert.Fail("Should raise a OverflowException");
 145                 }
 146                 catch (Exception e) {
 147                         Assert.IsTrue(typeof(OverflowException) == e.GetType());
 148                 }
 149                 try {
 150                         double OverInt = (double)UInt64.MaxValue + 1;
 151                         UInt64.Parse(OverInt.ToString(), NumberStyles.Integer);
 152                         Assert.Fail("Should raise a System.FormatException");
 153                 }
 154                 catch (Exception e) {
 155                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 156                 }
 157                 Assert.IsTrue(42 == UInt64.Parse(" "+NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 ", NumberStyles.Currency));
 158                 try {
 159                         UInt64.Parse("$42", NumberStyles.Integer);
 160                         Assert.Fail("Should raise a FormatException");
 161                 }
 162                 catch (Exception e) {
 163                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 164                 }
 165                 //test Parse(string s, IFormatProvider provider)
 166                 Assert.IsTrue(42 == UInt64.Parse(" 42 ", Nfi));
 167                 try {
 168                         UInt64.Parse("%42", Nfi);
 169                         Assert.Fail("Should raise a System.FormatException");
 170                 }
 171                 catch (Exception e) {
 172                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 173                 }
 174                 //test Parse(string s, NumberStyles style, IFormatProvider provider)
 175                 Assert.IsTrue(16 == UInt64.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
 176                 try {
 177                         UInt64.Parse("$42", NumberStyles.Integer, Nfi);
 178                         Assert.Fail("Should raise a System.FormatException");
 179                 }
 180                 catch (Exception e) {
 181                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 182                 }
 183
 184                 // Pass a DateTimeFormatInfo, it is unable to format
 185                 // numbers, but we should not crash
 186
 187                 UInt64.Parse ("123", new DateTimeFormatInfo ());
 188
 189                 Assert.AreEqual (734561, UInt64.Parse ("734561\0"), "C#43");
 190                 Assert.AreEqual (734561, UInt64.Parse ("734561\0\0\0    \0"), "C#44");
 191                 Assert.AreEqual (734561, UInt64.Parse ("734561\0\0\0    "), "C#45");
 192                 Assert.AreEqual (734561, UInt64.Parse ("734561\0\0\0"), "C#46");
 193
 194                 Assert.AreEqual (0, UInt64.Parse ("0+", NumberStyles.Any), "#50");
 195         }
 196
 197         [Test]
 198         public void TestParseExponent ()
 199         {
 200                 Assert.AreEqual (2, ulong.Parse ("2E0", NumberStyles.AllowExponent), "A#1");
 201                 Assert.AreEqual (20, ulong.Parse ("2E1", NumberStyles.AllowExponent), "A#2");
 202                 Assert.AreEqual (200, ulong.Parse ("2E2", NumberStyles.AllowExponent), "A#3");
 203                 Assert.AreEqual (2000000, ulong.Parse ("2E6", NumberStyles.AllowExponent), "A#4");
 204                 Assert.AreEqual (200, ulong.Parse ("2E+2", NumberStyles.AllowExponent), "A#5");
 205                 Assert.AreEqual (2, ulong.Parse ("2", NumberStyles.AllowExponent), "A#6");
 206                 Assert.AreEqual (21, ulong.Parse ("2.1E1", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#7");
 207                 Assert.AreEqual (520, ulong.Parse (".52E3", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#8");
 208                 Assert.AreEqual (32500000, ulong.Parse ("32.5E6", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#9");
 209                 Assert.AreEqual (890, ulong.Parse ("8.9000E2", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#10");
 210
 211                 try {
 212                         ulong.Parse ("2E");
 213                         Assert.Fail ("B#1");
 214                 } catch (FormatException) {
 215                 }
 216
 217                 try {
 218                         ulong.Parse ("2E3.0", NumberStyles.AllowExponent); // decimal notation for the exponent
 219                         Assert.Fail ("B#2");
 220                 } catch (FormatException) {
 221                 }
 222
 223                 try {
 224                         ulong.Parse ("2E 2", NumberStyles.AllowExponent);
 225                         Assert.Fail ("B#3");
 226                 } catch (FormatException) {
 227                 }
 228
 229                 try {
 230                         ulong.Parse ("2E2 ", NumberStyles.AllowExponent);
 231                         Assert.Fail ("B#4");
 232                 } catch (FormatException) {
 233                 }
 234
 235                 try {
 236                         ulong.Parse ("2E66", NumberStyles.AllowExponent); // final result overflow
 237                         Assert.Fail ("B#5");
 238                 } catch (OverflowException) {
 239                 }
 240
 241                 try {
 242                         long exponent = (long) Int32.MaxValue + 10;
 243                         ulong.Parse ("2E" + exponent.ToString (), NumberStyles.AllowExponent);
 244                         Assert.Fail ("B#6");
 245                 } catch (OverflowException) {
 246                 }
 247
 248                 try {
 249                         ulong.Parse ("2E-1", NumberStyles.AllowExponent); // negative exponent
 250                         Assert.Fail ("B#7");
 251                 } catch (OverflowException) {
 252                 }
 253
 254                 try {
 255                         ulong.Parse ("2 math e1", NumberStyles.AllowExponent);
 256                         Assert.Fail ("B#8");
 257                 } catch (FormatException) {
 258                 }
 259
 260                 try {
 261                         ulong.Parse ("2.09E1",  NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent);
 262                         Assert.Fail ("B#9");
 263                 } catch (OverflowException) {
 264                 }
 265         }
 266
 267         [Test]
 268         public void TestToString()
 269         {
 270                 //test ToString()
 271                 Assert.AreEqual(MyString1, MyUInt64_1.ToString(), "A");
 272                 Assert.AreEqual(MyString2, MyUInt64_2.ToString(), "B");
 273                 Assert.AreEqual(MyString3, MyUInt64_3.ToString(), "C");
 274                 //test ToString(string format)
 275                 for (int i=0; i < Formats1.Length; i++) {
 276                         Assert.AreEqual(Results1[i], MyUInt64_2.ToString(Formats1[i]), "D");
 277                         Assert.AreEqual(Results2[i], MyUInt64_3.ToString(Formats2[i]), "E: format #" + i);
 278                 }
 279                 //test ToString(string format, IFormatProvider provider);
 280                 for (int i=0; i < Formats1.Length; i++) {
 281                         Assert.AreEqual(ResultsNfi1[i], MyUInt64_2.ToString(Formats1[i], Nfi), "F");
 282                         Assert.AreEqual(ResultsNfi2[i], MyUInt64_3.ToString(Formats2[i], Nfi), "G");
 283                 }
 284                 try {
 285                         MyUInt64_1.ToString("z");
 286                         Assert.Fail("Should raise a System.FormatException");
 287                 }
 288                 catch (Exception e) {
 289                         Assert.IsTrue(typeof(FormatException) == e.GetType(), "H");
 290                 }
 291         }
 292
 293         [Test]
 294         public void ToString_Defaults ()
 295         {
 296                 UInt64 i = 254;
 297                 // everything defaults to "G"
 298                 string def = i.ToString ("G");
 299                 Assert.AreEqual (def, i.ToString (), "ToString()");
 300                 Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
 301                 Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
 302                 Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
 303                 Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
 304                 Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
 305
 306                 Assert.AreEqual ("254", def, "ToString(G)");
 307         }
 308 }
 309
 310 }