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.AreEqual(65535, MyUInt16_3.CompareTo(MyUInt16_2), "#1");
  82                 Assert.AreEqual(0, MyUInt16_2.CompareTo(MyUInt16_2), "#2");
  83                 Assert.AreEqual(0, MyUInt16_1.CompareTo((UInt16)(42)), "#3");
  84                 Assert.AreEqual(-65535, MyUInt16_2.CompareTo(MyUInt16_3), "#4");
  85                 try {
  86                         MyUInt16_2.CompareTo((object)100);
  87                         Assert.Fail("Should raise a System.ArgumentException");
  88                 } catch (ArgumentException e) {
  89                 }
  90         }
  91
  92         [Test]
  93         public void TestEquals()
  94         {
  95                 Assert.IsTrue(MyUInt16_1.Equals(MyUInt16_1));
  96                 Assert.IsTrue(MyUInt16_1.Equals((object)(UInt16)(42)));
  97                 Assert.IsTrue(MyUInt16_1.Equals((object)(SByte)(42)) == false);
  98                 Assert.IsTrue(MyUInt16_1.Equals(MyUInt16_2) == false);
  99         }
 100
 101         [Test]
 102         public void TestGetHashCode()
 103         {
 104                 try {
 105                         MyUInt16_1.GetHashCode();
 106                         MyUInt16_2.GetHashCode();
 107                         MyUInt16_3.GetHashCode();
 108                 }
 109                 catch {
 110                         Assert.Fail("GetHashCode should not raise an exception here");
 111                 }
 112         }
 113
 114         [Test]
 115         public void TestParse()
 116         {
 117                 //test Parse(string s)
 118                 Assert.IsTrue(MyUInt16_1 == UInt16.Parse(MyString1));
 119                 Assert.IsTrue(MyUInt16_2 == UInt16.Parse(MyString2));
 120                 Assert.IsTrue(MyUInt16_3 == UInt16.Parse(MyString3));
 121                 try {
 122                         UInt16.Parse(null);
 123                         Assert.Fail("Should raise a System.ArgumentNullException");
 124                 }
 125                 catch (Exception e) {
 126                         Assert.IsTrue(typeof(ArgumentNullException) == e.GetType());
 127                 }
 128                 try {
 129                         UInt16.Parse("not-a-number");
 130                         Assert.Fail("Should raise a System.FormatException");
 131                 }
 132                 catch (Exception e) {
 133                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 134                 }
 135                 try {
 136                         int OverInt = UInt16.MaxValue + 1;
 137                         UInt16.Parse(OverInt.ToString());
 138                         Assert.Fail("Should raise a System.OverflowException");
 139                 }
 140                 catch (Exception e) {
 141                         Assert.IsTrue(typeof(OverflowException) == e.GetType());
 142                 }
 143                 //test Parse(string s, NumberStyles style)
 144                 Assert.IsTrue(42 == UInt16.Parse(" "+NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 ", NumberStyles.Currency));
 145                 try {
 146                         UInt16.Parse("$42", NumberStyles.Integer);
 147                         Assert.Fail("Should raise a System.FormatException");
 148                 }
 149                 catch (Exception e) {
 150                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 151                 }
 152                 //test Parse(string s, IFormatProvider provider)
 153                 Assert.IsTrue(42 == UInt16.Parse(" 42 ", Nfi));
 154                 try {
 155                         UInt16.Parse("%42", Nfi);
 156                         Assert.Fail("Should raise a System.FormatException");
 157                 }
 158                 catch (Exception e) {
 159                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 160                 }
 161                 //test Parse(string s, NumberStyles style, IFormatProvider provider)
 162                 Assert.IsTrue(16 == UInt16.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
 163                 try {
 164                         UInt16.Parse("$42", NumberStyles.Integer, Nfi);
 165                         Assert.Fail("Should raise a System.FormatException");
 166                 }
 167                 catch (Exception e) {
 168                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 169                 }
 170         }
 171
 172         [Test]
 173         public void TestParseExponent ()
 174         {
 175                 Assert.AreEqual (2, UInt16.Parse ("2E0", NumberStyles.AllowExponent), "A#1");
 176                 Assert.AreEqual (20, UInt16.Parse ("2E1", NumberStyles.AllowExponent), "A#2");
 177                 Assert.AreEqual (200, UInt16.Parse ("2E2", NumberStyles.AllowExponent), "A#3");
 178                 Assert.AreEqual (200, UInt16.Parse ("2E+2", NumberStyles.AllowExponent), "A#4");
 179                 Assert.AreEqual (2, UInt16.Parse ("2", NumberStyles.AllowExponent), "A#5");
 180
 181                 try {
 182                         UInt16.Parse ("2E");
 183                         Assert.Fail ("B#1");
 184                 } catch (FormatException) {
 185                 }
 186
 187                 try {
 188                         UInt16.Parse ("2E3.0", NumberStyles.AllowExponent); // decimal notation for the exponent
 189                         Assert.Fail ("B#2");
 190                 } catch (FormatException) {
 191                 }
 192
 193                 try {
 194                         UInt16.Parse ("2E 2", NumberStyles.AllowExponent);
 195                         Assert.Fail ("B#3");
 196                 } catch (FormatException) {
 197                 }
 198
 199                 try {
 200                         UInt16.Parse ("2E2 ", NumberStyles.AllowExponent);
 201                         Assert.Fail ("B#4");
 202                 } catch (FormatException) {
 203                 }
 204
 205                 try {
 206                         UInt16.Parse ("2E66", NumberStyles.AllowExponent); // final result overflow
 207                         Assert.Fail ("B#5");
 208                 } catch (OverflowException) {
 209                 }
 210
 211                 try {
 212                         long exponent = (long) Int32.MaxValue + 10;
 213                         UInt16.Parse ("2E" + exponent.ToString (), NumberStyles.AllowExponent);
 214                         Assert.Fail ("B#6");
 215                 } catch (OverflowException) {
 216                 }
 217
 218                 try {
 219                         UInt16.Parse ("2E-1", NumberStyles.AllowExponent); // negative exponent
 220                         Assert.Fail ("B#7");
 221                 } catch (OverflowException) {
 222                 }
 223
 224                 try {
 225                         UInt16.Parse ("2 math e1", NumberStyles.AllowExponent);
 226                         Assert.Fail ("B#8");
 227                 } catch (FormatException) {
 228                 }
 229         }
 230
 231         [Test]
 232         public void TestToString()
 233         {
 234                 //test ToString()
 235                 Assert.AreEqual(MyString1, MyUInt16_1.ToString(), "A1");
 236                 Assert.AreEqual(MyString2, MyUInt16_2.ToString(), "A2");
 237                 Assert.AreEqual(MyString3, MyUInt16_3.ToString(), "A3");
 238                 //test ToString(string format)
 239                 for (int i=0; i < Formats1.Length; i++) {
 240                         Console.WriteLine ("d:" + NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
 241                         Assert.AreEqual(Results1[i], MyUInt16_2.ToString(Formats1[i]), "A4:"+i.ToString());
 242                         Assert.AreEqual(Results2[i], MyUInt16_3.ToString(Formats2[i]), "A5:"+i.ToString());
 243                 }
 244                 //test ToString(string format, IFormatProvider provider);
 245                 for (int i=0; i < Formats1.Length; i++) {
 246                         Assert.AreEqual(ResultsNfi1[i], MyUInt16_2.ToString(Formats1[i], Nfi), "A6:"+i.ToString());
 247                         Assert.AreEqual(ResultsNfi2[i], MyUInt16_3.ToString(Formats2[i], Nfi), "A7:"+i.ToString());
 248                 }
 249                 try {
 250                         MyUInt16_1.ToString("z");
 251                         Assert.Fail("Should raise a System.FormatException");
 252                 }
 253                 catch (Exception e) {
 254                         Assert.IsTrue(typeof(FormatException) == e.GetType(), "A8");
 255                 }
 256         }
 257
 258         [Test]
 259         public void ToString_Defaults ()
 260         {
 261                 UInt16 i = 254;
 262                 // everything defaults to "G"
 263                 string def = i.ToString ("G");
 264                 Assert.AreEqual (def, i.ToString (), "ToString()");
 265                 Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
 266                 Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
 267                 Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
 268                 Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
 269                 Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
 270
 271                 Assert.AreEqual ("254", def, "ToString(G)");
 272         }
 273 }
 274
 275 }