class/corlib/Test/System/Int16Test.cs

   1 // Int16Test.cs - NUnit Test Cases for the System.Int16 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 Int16Test
  18 {
  19         private const Int16 MyInt16_1 = -42;
  20         private const Int16 MyInt16_2 = -32768;
  21         private const Int16 MyInt16_3 = 32767;
  22         private const string MyString1 = "-42";
  23         private const string MyString2 = "-32768";
  24         private const string MyString3 = "32767";
  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, "-32768", "-3.276800e+004", "-32768.00",
  28                                           "-32768", "-32,768.00", "-3,276,800.00 %", "8000"};
  29         private string[] Results2 = {null, "32767", "3.27670e+004", "32767.00000",
  30                                           "32767", "32,767.00000", "3,276,700.00000 %", "07fff"};
  31         private string[] ResultsNfi1 = {"("+NumberFormatInfo.InvariantInfo.CurrencySymbol+"32,768.00)", "-32768", "-3.276800e+004", "-32768.00",
  32                                           "-32768", "-32,768.00", "-3,276,800.00 %", "8000"};
  33         private string[] ResultsNfi2 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"32,767.00000", "32767", "3.27670e+004", "32767.00000",
  34                                           "32767", "32,767.00000", "3,276,700.00000 %", "07fff"};
  35         private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
  36
  37         private CultureInfo old_culture;
  38
  39         [TestFixtureSetUp]
  40         public void SetUp ()
  41         {
  42                 old_culture = Thread.CurrentThread.CurrentCulture;
  43
  44                 // Set culture to en-US and don't let the user override.
  45                 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
  46
  47                 // We can't initialize this until we set the culture.
  48                 Results1 [0] = "("+NumberFormatInfo.CurrentInfo.CurrencySymbol+"32,768.00)";
  49                 Results2 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol+"32,767.00000";
  50         }
  51
  52         [TestFixtureTearDown]
  53         public void TearDown ()
  54         {
  55                 Thread.CurrentThread.CurrentCulture = old_culture;
  56         }
  57
  58         [Test]
  59         public void TestMinMax()
  60         {
  61                 Assert.AreEqual(Int16.MinValue, MyInt16_2);
  62                 Assert.AreEqual(Int16.MaxValue, MyInt16_3);
  63         }
  64
  65         [Test]
  66         public void TestCompareTo()
  67         {
  68                 Assert.IsTrue(MyInt16_3.CompareTo(MyInt16_2) > 0);
  69                 Assert.IsTrue(MyInt16_2.CompareTo(MyInt16_2) == 0);
  70                 Assert.IsTrue(MyInt16_1.CompareTo((Int16)(-42)) == 0);
  71                 Assert.IsTrue(MyInt16_2.CompareTo(MyInt16_3) < 0);
  72                 try {
  73                         MyInt16_2.CompareTo((object)100);
  74                         Assert.Fail ("Should raise a System.ArgumentException");
  75                 }
  76                 catch (Exception e) {
  77                         Assert.IsTrue(typeof(ArgumentException) == e.GetType());
  78                 }
  79         }
  80
  81         [Test]
  82         public void TestEquals()
  83         {
  84                 Assert.IsTrue(MyInt16_1.Equals(MyInt16_1));
  85                 Assert.IsTrue(MyInt16_1.Equals((object)(Int16)(-42)));
  86                 Assert.IsTrue(MyInt16_1.Equals((object)(SByte)(-42)) == false);
  87                 Assert.IsTrue(MyInt16_1.Equals(MyInt16_2) == false);
  88         }
  89
  90         [Test]
  91         public void TestGetHashCode()
  92         {
  93                 try {
  94                         MyInt16_1.GetHashCode();
  95                         MyInt16_2.GetHashCode();
  96                         MyInt16_3.GetHashCode();
  97                 }
  98                 catch {
  99                         Assert.Fail ("GetHashCode should not raise an exception here");
 100                 }
 101         }
 102
 103         [Test]
 104         public void TestParse()
 105         {
 106                 //test Parse(string s)
 107                 Assert.IsTrue(MyInt16_1 == Int16.Parse(MyString1));
 108                 Assert.IsTrue(MyInt16_2 == Int16.Parse(MyString2));
 109                 Assert.IsTrue(MyInt16_3 == Int16.Parse(MyString3));
 110                 try {
 111                         Int16.Parse(null);
 112                         Assert.Fail ("Should raise a System.ArgumentNullException");
 113                 }
 114                 catch (Exception e) {
 115                         Assert.IsTrue(typeof(ArgumentNullException) == e.GetType());
 116                 }
 117                 try {
 118                         Int16.Parse("not-a-number");
 119                         Assert.Fail ("Should raise a System.FormatException");
 120                 }
 121                 catch (Exception e) {
 122                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 123                 }
 124                 try {
 125                         int OverInt = Int16.MaxValue + 1;
 126                         Int16.Parse(OverInt.ToString());
 127                         Assert.Fail ("Should raise a System.OverflowException");
 128                 }
 129                 catch (Exception e) {
 130                         Assert.IsTrue(typeof(OverflowException) == e.GetType());
 131                 }
 132                 //test Parse(string s, NumberStyles style)
 133                 Assert.IsTrue(42 == Int16.Parse(" $42 ", NumberStyles.Currency));
 134                 try {
 135                         Int16.Parse("$42", NumberStyles.Integer);
 136                         Assert.Fail ("Should raise a System.FormatException");
 137                 }
 138                 catch (Exception e) {
 139                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 140                 }
 141                 //test Parse(string s, IFormatProvider provider)
 142                 Assert.IsTrue(-42 == Int16.Parse(" -42 ", Nfi));
 143                 try {
 144                         Int16.Parse("%42", Nfi);
 145                         Assert.Fail ("Should raise a System.FormatException");
 146                 }
 147                 catch (Exception e) {
 148                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 149                 }
 150                 //test Parse(string s, NumberStyles style, IFormatProvider provider)
 151                 Assert.IsTrue(16 == Int16.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
 152                 try {
 153                         Int16.Parse("$42", NumberStyles.Integer, Nfi);
 154                         Assert.Fail ("Should raise a System.FormatException");
 155                 }
 156                 catch (Exception e) {
 157                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 158                 }
 159         }
 160
 161         [Test]
 162         public void TestToString()
 163         {
 164                 //test ToString()
 165                 Assert.IsTrue(String.Compare(MyString1, MyInt16_1.ToString()) == 0);
 166                 Assert.IsTrue(String.Compare(MyString2, MyInt16_2.ToString()) == 0);
 167                 Assert.IsTrue(String.Compare(MyString3, MyInt16_3.ToString()) == 0);
 168                 //test ToString(string format)
 169                 /*
 170                 TODO: These tests are culture sensitive.  Need to find a way to determine the culture
 171                         of the system to decide the correct expected result.
 172                 for (int i=0; i < Formats1.Length; i++) {
 173                         Assert.IsTrue(String.Compare(Results1[i], MyInt16_2.ToString(Formats1[i])) == 0);
 174                         Assert.IsTrue(String.Compare(Results2[i], MyInt16_3.ToString(Formats2[i])) == 0);
 175                 }
 176                 */
 177                 //test ToString(string format, IFormatProvider provider);
 178                 for (int i=0; i < Formats1.Length; i++) {
 179                         Assert.IsTrue(String.Compare(ResultsNfi1[i], MyInt16_2.ToString(Formats1[i], Nfi)) == 0, "i="+i+", ResultsNfi1[i]="+ResultsNfi1[i]+", MyInt16_2.ToString(Formats1[i]="+Formats1[i]+"): Expected "+ResultsNfi1[i]+" but got "+MyInt16_2.ToString(Formats1[i], Nfi));
 180                         Assert.IsTrue(String.Compare(ResultsNfi2[i], MyInt16_3.ToString(Formats2[i], Nfi)) == 0, "i="+i+", ResultsNfi2[i]="+ResultsNfi2[i]+", MyInt16_3.ToString(Formats2[i]="+Formats2[i]+"): Expected "+ResultsNfi2[i]+" but got "+MyInt16_3.ToString(Formats2[i], Nfi));
 181                 }
 182                 try {
 183                         MyInt16_1.ToString("z");
 184                         Assert.Fail ("Should raise a System.FormatException");
 185                 }
 186                 catch (Exception e) {
 187                         Assert.IsTrue(typeof(FormatException) == e.GetType());
 188                 }
 189         }
 190
 191         [Test]
 192         public void ToString_Defaults ()
 193         {
 194                 Int16 i = 254;
 195                 // everything defaults to "G"
 196                 string def = i.ToString ("G");
 197                 Assert.AreEqual (def, i.ToString (), "ToString()");
 198                 Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
 199                 Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
 200                 Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
 201                 Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
 202                 Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
 203
 204                 Assert.AreEqual ("254", def, "ToString(G)");
 205         }
 206 }
 207
 208 }