mcs/class/corlib/Test/System/UInt16Test.cs

   1 // UInt16Test.cs - NUnit Test Cases for the System.UInt16 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.Threading;
  11 using System.Globalization;
  12
  13 namespace MonoTests.System
  14 {
  15
  16 [TestFixture]
  17 public class UInt16Test
  18 {
  19         private const UInt16 MyUInt16_1 = 42;
  20         private const UInt16 MyUInt16_2 = 0;
  21         private const UInt16 MyUInt16_3 = 65535;
  22         private const string MyString1 = "42";
  23         private const string MyString2 = "0";
  24         private const string MyString3 = "65535";
  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 = {null,
  28                                      "0", "0.000000e+000", "0.00",
  29                                      "0", "0.00", "0.00 %", "0"};
  30         private string[] Results2 = {null,
  31                                      "65535", "6.55350e+004", "65535.00000",
  32                                      "65535", "65,535.00000", "6,553,500.00000 %", "0ffff"};
  33         private string[] ResultsNfi1 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"0.00",
  34                                         "0", "0.000000e+000", "0.00",
  35                                         "0", "0.00", "0.00 %", "0"};
  36         private string[] ResultsNfi2 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"65,535.00000",
  37                                         "65535", "6.55350e+004", "65535.00000",
  38                                         "65535", "65,535.00000", "6,553,500.00000 %", "0ffff"};
  39
  40         private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
  41
  42         private CultureInfo old_culture;
  43
  44         [SetUp]
  45         public void SetUp ()
  46         {
  47                 old_culture = Thread.CurrentThread.CurrentCulture;
  48
  49                 // Set culture to en-US and don't let the user override.
  50                 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
  51
  52                 string decimals = new String ('0', NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
  53                 string perPattern = new string[] {"n %","n%","%n"} [NumberFormatInfo.CurrentInfo.PercentPositivePattern];
  54
  55                 Results1 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol + "0.00";
  56                 Results1 [3] = "0." + decimals;
  57                 Results1 [5] = "0." + decimals;
  58                 Results1 [6] = perPattern.Replace ("n","0.00");
  59
  60                 Results2 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol + "65,535.00000";
  61                 Results2 [6] = perPattern.Replace ("n","6,553,500.00000");
  62         }
  63
  64         [TearDown]
  65         public void TearDown ()
  66         {
  67                 Thread.CurrentThread.CurrentCulture = old_culture;
  68         }
  69
  70         [Test]
  71         public void TestMinMax()
  72         {
  73
  74                 Assert.AreEqual(UInt16.MinValue, MyUInt16_2);
  75                 Assert.AreEqual(UInt16.MaxValue, MyUInt16_3);
  76         }
  77
  78         [Test]
  79         public void TestCompareTo()
  80         {
  81                 Assert.IsTrue(MyUInt16_3.CompareTo(MyUInt16_2) > 0);
  82                 Assert.IsTrue(MyUInt16_2.CompareTo(MyUInt16_2) == 0);
  83                 Assert.IsTrue(MyUInt16_1.CompareTo((UInt16)(42)) == 0);
  84                 Assert.IsTrue(MyUInt16_2.CompareTo(MyUInt16_3) < 0);
  85                 try {
  86                         MyUInt16_2.CompareTo((object)100);
  87                         Assert.Fail("Should raise a System.ArgumentException");
  88                 }
  89                 catch (Exception e) {
  90                         Assert.IsTrue(typeof(ArgumentException) == e.GetType());
  91                 }
  92         }
  93
  94         [Test]
  95         public void TestEquals()
  96         {
  97                 Assert.IsTrue(MyUInt16_1.Equals(MyUInt16_1));
  98                 Assert.IsTrue(MyUInt16_1.Equals((object)(UInt16)(42)));
  99                 Assert.IsTrue(MyUInt16_1.Equals((object)(SByte)(42)) == false);
 100                 Assert.IsTrue(MyUInt16_1.Equals(MyUInt16_2) == false);
 101         }
 102
 103         [Test]
 104         public void TestGetHashCode()
 105         {
 106                 try {
 107                         MyUInt16_1.GetHashCode();
 108                         MyUInt16_2.GetHashCode();
 109                         MyUInt16_3.GetHashCode();
 110                 }
 111                 catch {
 112                         Assert.Fail("GetHashCode should not raise an exception here");
 113                 }
 114         }
 115
 116         [Test]
 117         public void TestParse()
 118         {
 119                 //test Parse(string s)
 120                 Assert.IsTrue(MyUInt16_1 == UInt16.Parse(MyString1));
 121                 Assert.IsTrue(MyUInt16_2 == UInt16.Parse(MyString2));
 122                 Assert.IsTrue(MyUInt16_3 == UInt16.Parse(MyString3));
 123                 try {
 124                         UInt16.Parse(null);
 125                         Assert.Fail("Should raise a System.ArgumentNullException");
 126                 }
 127                 catch (Exception e) {
 128                         Assert.IsTrue(typeof(ArgumentNullException) == e.GetType());
 129                 }
 130                 try {
 131                         UInt16.Parse("not-a-number");
 132                         Assert.Fail("Should raise a System.FormatException");
 133                 }
 134                 catch (Exception e) {
 135                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 136                 }
 137                 try {
 138                         int OverInt = UInt16.MaxValue + 1;
 139                         UInt16.Parse(OverInt.ToString());
 140                         Assert.Fail("Should raise a System.OverflowException");
 141                 }
 142                 catch (Exception e) {
 143                         Assert.IsTrue(typeof(OverflowException) == e.GetType());
 144                 }
 145                 //test Parse(string s, NumberStyles style)
 146                 Assert.IsTrue(42 == UInt16.Parse(" "+NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 ", NumberStyles.Currency));
 147                 try {
 148                         UInt16.Parse("$42", NumberStyles.Integer);
 149                         Assert.Fail("Should raise a System.FormatException");
 150                 }
 151                 catch (Exception e) {
 152                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 153                 }
 154                 //test Parse(string s, IFormatProvider provider)
 155                 Assert.IsTrue(42 == UInt16.Parse(" 42 ", Nfi));
 156                 try {
 157                         UInt16.Parse("%42", Nfi);
 158                         Assert.Fail("Should raise a System.FormatException");
 159                 }
 160                 catch (Exception e) {
 161                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 162                 }
 163                 //test Parse(string s, NumberStyles style, IFormatProvider provider)
 164                 Assert.IsTrue(16 == UInt16.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
 165                 try {
 166                         UInt16.Parse("$42", NumberStyles.Integer, Nfi);
 167                         Assert.Fail("Should raise a System.FormatException");
 168                 }
 169                 catch (Exception e) {
 170                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 171                 }
 172         }
 173
 174         [Test]
 175         public void TestParseExponent ()
 176         {
 177                 Assert.AreEqual (2, UInt16.Parse ("2E0", NumberStyles.AllowExponent), "A#1");
 178                 Assert.AreEqual (20, UInt16.Parse ("2E1", NumberStyles.AllowExponent), "A#2");
 179                 Assert.AreEqual (200, UInt16.Parse ("2E2", NumberStyles.AllowExponent), "A#3");
 180                 Assert.AreEqual (200, UInt16.Parse ("2E+2", NumberStyles.AllowExponent), "A#4");
 181                 Assert.AreEqual (2, UInt16.Parse ("2", NumberStyles.AllowExponent), "A#5");
 182
 183                 try {
 184                         UInt16.Parse ("2E");
 185                         Assert.Fail ("B#1");
 186                 } catch (FormatException) {
 187                 }
 188
 189                 try {
 190                         UInt16.Parse ("2E3.0", NumberStyles.AllowExponent); // decimal notation for the exponent
 191                         Assert.Fail ("B#2");
 192                 } catch (FormatException) {
 193                 }
 194
 195                 try {
 196                         UInt16.Parse ("2E 2", NumberStyles.AllowExponent);
 197                         Assert.Fail ("B#3");
 198                 } catch (FormatException) {
 199                 }
 200
 201                 try {
 202                         UInt16.Parse ("2E2 ", NumberStyles.AllowExponent);
 203                         Assert.Fail ("B#4");
 204                 } catch (FormatException) {
 205                 }
 206
 207                 try {
 208                         UInt16.Parse ("2E66", NumberStyles.AllowExponent); // final result overflow
 209                         Assert.Fail ("B#5");
 210                 } catch (OverflowException) {
 211                 }
 212
 213                 try {
 214                         long exponent = (long) Int32.MaxValue + 10;
 215                         UInt16.Parse ("2E" + exponent.ToString (), NumberStyles.AllowExponent);
 216                         Assert.Fail ("B#6");
 217                 } catch (OverflowException) {
 218                 }
 219
 220                 try {
 221                         UInt16.Parse ("2E-1", NumberStyles.AllowExponent); // negative exponent
 222                         Assert.Fail ("B#7");
 223                 } catch (OverflowException) {
 224                 }
 225
 226                 try {
 227                         UInt16.Parse ("2 math e1", NumberStyles.AllowExponent);
 228                         Assert.Fail ("B#8");
 229                 } catch (FormatException) {
 230                 }
 231         }
 232
 233         [Test]
 234         public void TestToString()
 235         {
 236                 //test ToString()
 237                 Assert.AreEqual(MyString1, MyUInt16_1.ToString(), "A1");
 238                 Assert.AreEqual(MyString2, MyUInt16_2.ToString(), "A2");
 239                 Assert.AreEqual(MyString3, MyUInt16_3.ToString(), "A3");
 240                 //test ToString(string format)
 241                 for (int i=0; i < Formats1.Length; i++) {
 242                         Console.WriteLine ("d:" + NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
 243                         Assert.AreEqual(Results1[i], MyUInt16_2.ToString(Formats1[i]), "A4:"+i.ToString());
 244                         Assert.AreEqual(Results2[i], MyUInt16_3.ToString(Formats2[i]), "A5:"+i.ToString());
 245                 }
 246                 //test ToString(string format, IFormatProvider provider);
 247                 for (int i=0; i < Formats1.Length; i++) {
 248                         Assert.AreEqual(ResultsNfi1[i], MyUInt16_2.ToString(Formats1[i], Nfi), "A6:"+i.ToString());
 249                         Assert.AreEqual(ResultsNfi2[i], MyUInt16_3.ToString(Formats2[i], Nfi), "A7:"+i.ToString());
 250                 }
 251                 try {
 252                         MyUInt16_1.ToString("z");
 253                         Assert.Fail("Should raise a System.FormatException");
 254                 }
 255                 catch (Exception e) {
 256                         Assert.IsTrue(typeof(FormatException) == e.GetType(), "A8");
 257                 }
 258         }
 259
 260         [Test]
 261         public void ToString_Defaults ()
 262         {
 263                 UInt16 i = 254;
 264                 // everything defaults to "G"
 265                 string def = i.ToString ("G");
 266                 Assert.AreEqual (def, i.ToString (), "ToString()");
 267                 Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
 268                 Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
 269                 Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
 270                 Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
 271                 Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
 272
 273                 Assert.AreEqual ("254", def, "ToString(G)");
 274         }
 275 }
 276
 277 }