mcs/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 : Assertion
  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         public void TestMinMax()
  59         {
  60
  61                 AssertEquals(Int16.MinValue, MyInt16_2);
  62                 AssertEquals(Int16.MaxValue, MyInt16_3);
  63         }
  64
  65         public void TestCompareTo()
  66         {
  67                 Assert(MyInt16_3.CompareTo(MyInt16_2) > 0);
  68                 Assert(MyInt16_2.CompareTo(MyInt16_2) == 0);
  69                 Assert(MyInt16_1.CompareTo((Int16)(-42)) == 0);
  70                 Assert(MyInt16_2.CompareTo(MyInt16_3) < 0);
  71                 try {
  72                         MyInt16_2.CompareTo(100);
  73                         Fail("Should raise a System.ArgumentException");
  74                 }
  75                 catch (Exception e) {
  76                         Assert(typeof(ArgumentException) == e.GetType());
  77                 }
  78         }
  79
  80         public void TestEquals()
  81         {
  82                 Assert(MyInt16_1.Equals(MyInt16_1));
  83                 Assert(MyInt16_1.Equals((Int16)(-42)));
  84                 Assert(MyInt16_1.Equals((SByte)(-42)) == false);
  85                 Assert(MyInt16_1.Equals(MyInt16_2) == false);
  86         }
  87
  88         public void TestGetHashCode()
  89         {
  90                 try {
  91                         MyInt16_1.GetHashCode();
  92                         MyInt16_2.GetHashCode();
  93                         MyInt16_3.GetHashCode();
  94                 }
  95                 catch {
  96                         Fail("GetHashCode should not raise an exception here");
  97                 }
  98         }
  99
 100         public void TestParse()
 101         {
 102                 //test Parse(string s)
 103                 Assert(MyInt16_1 == Int16.Parse(MyString1));
 104                 Assert(MyInt16_2 == Int16.Parse(MyString2));
 105                 Assert(MyInt16_3 == Int16.Parse(MyString3));
 106                 try {
 107                         Int16.Parse(null);
 108                         Fail("Should raise a System.ArgumentNullException");
 109                 }
 110                 catch (Exception e) {
 111                         Assert(typeof(ArgumentNullException) == e.GetType());
 112                 }
 113                 try {
 114                         Int16.Parse("not-a-number");
 115                         Fail("Should raise a System.FormatException");
 116                 }
 117                 catch (Exception e) {
 118                         Assert(typeof(FormatException) == e.GetType());
 119                 }
 120                 try {
 121                         int OverInt = Int16.MaxValue + 1;
 122                         Int16.Parse(OverInt.ToString());
 123                         Fail("Should raise a System.OverflowException");
 124                 }
 125                 catch (Exception e) {
 126                         Assert(typeof(OverflowException) == e.GetType());
 127                 }
 128                 //test Parse(string s, NumberStyles style)
 129                 Assert(42 == Int16.Parse(" $42 ", NumberStyles.Currency));
 130                 try {
 131                         Int16.Parse("$42", NumberStyles.Integer);
 132                         Fail("Should raise a System.FormatException");
 133                 }
 134                 catch (Exception e) {
 135                         Assert(typeof(FormatException) == e.GetType());
 136                 }
 137                 //test Parse(string s, IFormatProvider provider)
 138                 Assert(-42 == Int16.Parse(" -42 ", Nfi));
 139                 try {
 140                         Int16.Parse("%42", Nfi);
 141                         Fail("Should raise a System.FormatException");
 142                 }
 143                 catch (Exception e) {
 144                         Assert(typeof(FormatException) == e.GetType());
 145                 }
 146                 //test Parse(string s, NumberStyles style, IFormatProvider provider)
 147                 Assert(16 == Int16.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
 148                 try {
 149                         Int16.Parse("$42", NumberStyles.Integer, Nfi);
 150                         Fail("Should raise a System.FormatException");
 151                 }
 152                 catch (Exception e) {
 153                         Assert(typeof(FormatException) == e.GetType());
 154                 }
 155         }
 156
 157         public void TestToString()
 158         {
 159                 //test ToString()
 160                 Assert(String.Compare(MyString1, MyInt16_1.ToString()) == 0);
 161                 Assert(String.Compare(MyString2, MyInt16_2.ToString()) == 0);
 162                 Assert(String.Compare(MyString3, MyInt16_3.ToString()) == 0);
 163                 //test ToString(string format)
 164                 /*
 165                 TODO: These tests are culture sensitive.  Need to find a way to determine the culture
 166                         of the system to decide the correct expected result.
 167                 for (int i=0; i < Formats1.Length; i++) {
 168                         Assert(String.Compare(Results1[i], MyInt16_2.ToString(Formats1[i])) == 0);
 169                         Assert(String.Compare(Results2[i], MyInt16_3.ToString(Formats2[i])) == 0);
 170                 }
 171                 */
 172                 //test ToString(string format, IFormatProvider provider);
 173                 for (int i=0; i < Formats1.Length; i++) {
 174                         Assert("i="+i+", ResultsNfi1[i]="+ResultsNfi1[i]+", MyInt16_2.ToString(Formats1[i]="+Formats1[i]+"): Expected "+ResultsNfi1[i]+" but got "+MyInt16_2.ToString(Formats1[i], Nfi), String.Compare(ResultsNfi1[i], MyInt16_2.ToString(Formats1[i], Nfi)) == 0);
 175                         Assert("i="+i+", ResultsNfi2[i]="+ResultsNfi2[i]+", MyInt16_3.ToString(Formats2[i]="+Formats2[i]+"): Expected "+ResultsNfi2[i]+" but got "+MyInt16_3.ToString(Formats2[i], Nfi), String.Compare(ResultsNfi2[i], MyInt16_3.ToString(Formats2[i], Nfi)) == 0);
 176                 }
 177                 try {
 178                         MyInt16_1.ToString("z");
 179                         Fail("Should raise a System.FormatException");
 180                 }
 181                 catch (Exception e) {
 182                         Assert(typeof(FormatException) == e.GetType());
 183                 }
 184         }
 185
 186         [Test]
 187         public void ToString_Defaults ()
 188         {
 189                 Int16 i = 254;
 190                 // everything defaults to "G"
 191                 string def = i.ToString ("G");
 192                 AssertEquals ("ToString()", def, i.ToString ());
 193                 AssertEquals ("ToString((IFormatProvider)null)", def, i.ToString ((IFormatProvider)null));
 194                 AssertEquals ("ToString((string)null)", def, i.ToString ((string)null));
 195                 AssertEquals ("ToString(empty)", def, i.ToString (String.Empty));
 196                 AssertEquals ("ToString(null,null)", def, i.ToString (null, null));
 197                 AssertEquals ("ToString(empty,null)", def, i.ToString (String.Empty, null));
 198
 199                 AssertEquals ("ToString(G)", "254", def);
 200         }
 201 }
 202
 203 }