class/corlib/Test/System/ByteTest.cs

   1 // ByteTest.cs - NUnit Test Cases for the System.Byte 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 ByteTest
  18 {
  19         private const Byte MyByte1 = 42;
  20         private const Byte MyByte2 = 0;
  21         private const Byte MyByte3 = 255;
  22         private const string MyString1 = "42";
  23         private const string MyString2 = "0";
  24         private const string MyString3 = "255";
  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[] Results1_Nfi = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"0.00",
  31                                         "0", "0.000000e+000", "0.00",
  32                                         "0", "0.00", "0.00 %", "0"};
  33         private string[] Results2 = {   "",
  34                                         "00255", "2.55000e+002", "255.00000",
  35                                         "255", "255.00000", "25,500.00000 %", "000ff"};
  36         private string[] Results2_Nfi = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"255.00000",
  37                                         "00255", "2.55000e+002", "255.00000",
  38                                         "255", "255.00000", "25,500.00000 %", "000ff"};
  39
  40         private CultureInfo old_culture;
  41         private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
  42
  43         [SetUp]
  44         public void SetUp ()
  45         {
  46                 old_culture = Thread.CurrentThread.CurrentCulture;
  47
  48                 CultureInfo EnUs = new CultureInfo ("en-us", false);
  49                 EnUs.NumberFormat.NumberDecimalDigits = 2;
  50                 Thread.CurrentThread.CurrentCulture = EnUs;
  51
  52                 int cdd = NumberFormatInfo.CurrentInfo.CurrencyDecimalDigits;
  53                 string sep = NumberFormatInfo.CurrentInfo.CurrencyDecimalSeparator;
  54                 string csym = NumberFormatInfo.CurrentInfo.CurrencySymbol;
  55                 string csuffix = (cdd > 0 ? sep : "").PadRight(cdd + (cdd > 0 ? 1 : 0), '0');
  56                 switch (NumberFormatInfo.CurrentInfo.CurrencyPositivePattern) {
  57                         case 0: // $n
  58                                 Results1[0] = csym + "0" + csuffix;
  59                                 Results2[0] = csym + "255" + sep + "00000";
  60                                 break;
  61                         case 1: // n$
  62                                 Results1[0] = "0" + csuffix + csym;
  63                                 Results2[0] = "255" + sep + "00000" + csym;
  64                                 break;
  65                         case 2: // $ n
  66                                 Results1[0] = csym + " 0" + csuffix;
  67                                 Results2[0] = csym + " 255" + sep + "00000";
  68                                 break;
  69                         case 3: // n $
  70                                 Results1[0] = "0" + csuffix + " " + csym;
  71                                 Results2[0] = "255" + sep + "00000 " + csym;
  72                                 break;
  73                 }
  74
  75                 sep = NumberFormatInfo.CurrentInfo.NumberDecimalSeparator;
  76                 string decimals = new String ('0', NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
  77                 string perPattern = new string[] {"n %","n%","%n"} [NumberFormatInfo.CurrentInfo.PercentPositivePattern];
  78
  79                 Results1[2] = "0" + sep + "000000e+000";
  80                 Results1[3] = "0" + sep + decimals;
  81                 Results1[5] = "0" + sep + decimals;
  82                 Results1[6] = perPattern.Replace ("n","0" + sep + "00");
  83
  84                 Results2[2] = "2" + sep + "55000e+002";
  85                 Results2[3] = "255" + sep + "00000";
  86                 Results2[3] = "255" + sep + "00000";
  87                 Results2[5] = "255" + sep + "00000";
  88                 string gsep = NumberFormatInfo.CurrentInfo.NumberGroupSeparator;
  89                 Results2[6] = perPattern.Replace ("n","25" + gsep + "500" + sep + "00000");
  90         }
  91
  92         [TearDown]
  93         public void TearDown ()
  94         {
  95                 Thread.CurrentThread.CurrentCulture = old_culture;
  96         }
  97
  98         public void TestMinMax()
  99         {
 100                 Assert.AreEqual(Byte.MinValue, MyByte2);
 101                 Assert.AreEqual(Byte.MaxValue, MyByte3);
 102         }
 103
 104         public void TestCompareTo()
 105         {
 106                 Assert.IsTrue (MyByte3.CompareTo(MyByte2) > 0);
 107                 Assert.IsTrue (MyByte2.CompareTo(MyByte2) == 0);
 108                 Assert.IsTrue (MyByte1.CompareTo((object)(Byte)42) == 0);
 109                 Assert.IsTrue (MyByte2.CompareTo(MyByte3) < 0);
 110                 try {
 111                         MyByte2.CompareTo((object)100);
 112                         Assert.Fail ("Should raise a System.ArgumentException");
 113                 }
 114                 catch (Exception e) {
 115                         Assert.IsTrue (typeof(ArgumentException) == e.GetType());
 116                 }
 117         }
 118
 119         public void TestEquals()
 120         {
 121                 Assert.IsTrue (MyByte1.Equals(MyByte1));
 122                 Assert.IsTrue (MyByte1.Equals((object)(Byte)42));
 123                 Assert.IsTrue (MyByte1.Equals((object)(Int16)42) == false);
 124                 Assert.IsTrue (MyByte1.Equals(MyByte2) == false);
 125         }
 126
 127         public void TestGetHashCode()
 128         {
 129                 try {
 130                         MyByte1.GetHashCode();
 131                         MyByte2.GetHashCode();
 132                         MyByte3.GetHashCode();
 133                 }
 134                 catch {
 135                         Assert.Fail ("GetHashCode should not raise an exception here");
 136                 }
 137         }
 138
 139         public void TestParse()
 140         {
 141                 //test Parse(string s)
 142                 Assert.IsTrue (MyByte1 == Byte.Parse(MyString1), "MyByte1="+MyByte1+", MyString1="+MyString1+", Parse="+Byte.Parse(MyString1));
 143                 Assert.IsTrue(MyByte2 == Byte.Parse(MyString2), "MyByte2");
 144                 Assert.IsTrue(MyByte3 == Byte.Parse(MyString3), "MyByte3");
 145
 146                 try {
 147                         Byte.Parse(null);
 148                         Assert.Fail ("Should raise a System.ArgumentNullException");
 149                 }
 150                 catch (Exception e) {
 151                         Assert.IsTrue(typeof(ArgumentNullException) == e.GetType(), "Should get ArgumentNullException");
 152                 }
 153                 try {
 154                         Byte.Parse("not-a-number");
 155                         Assert.Fail ("Should raise a System.FormatException");
 156                 }
 157                 catch (Exception e) {
 158                         Assert.IsTrue(typeof(FormatException) == e.GetType(), "not-a-number");
 159                 }
 160
 161                 //test Parse(string s, NumberStyles style)
 162                 Assert.AreEqual((byte)42, Byte.Parse(" "+NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 ", NumberStyles.Currency),
 163                                                 " "+NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 ");
 164                 try {
 165                         Byte.Parse(NumberFormatInfo.CurrentInfo.CurrencySymbol+"42", NumberStyles.Integer);
 166                         Assert.Fail ("Should raise a System.FormatException");
 167                 }
 168                 catch (Exception e) {
 169                         Assert.IsTrue (typeof(FormatException) == e.GetType(), NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 and NumberStyles.Integer");
 170                 }
 171                 //test Parse(string s, IFormatProvider provider)
 172                 Assert.IsTrue(42 == Byte.Parse(" 42 ", Nfi), " 42 and Nfi");
 173                 try {
 174                         Byte.Parse("%42", Nfi);
 175                         Assert.Fail ("Should raise a System.FormatException");
 176                 }
 177                 catch (Exception e) {
 178                         Assert.IsTrue(typeof(FormatException) == e.GetType(), "%42 and Nfi");
 179                 }
 180                 //test Parse(string s, NumberStyles style, IFormatProvider provider)
 181                 Assert.IsTrue(16 == Byte.Parse(" 10 ", NumberStyles.HexNumber, Nfi), "NumberStyles.HexNumber");
 182                 try {
 183                         Byte.Parse(NumberFormatInfo.CurrentInfo.CurrencySymbol+"42", NumberStyles.Integer, Nfi);
 184                         Assert.Fail ("Should raise a System.FormatException");
 185                 }
 186                 catch (Exception e) {
 187                         Assert.IsTrue (typeof(FormatException) == e.GetType(), NumberFormatInfo.CurrentInfo.CurrencySymbol+"42, NumberStyles.Integer, Nfi");
 188                 }
 189         }
 190
 191         [Test]
 192         [ExpectedException (typeof(OverflowException))]
 193         public void ParseOverflow()
 194         {
 195                 int OverInt = Byte.MaxValue + 1;
 196                 Byte.Parse(OverInt.ToString());
 197         }
 198
 199
 200         public void TestToString()
 201         {
 202                 //test ToString()
 203                 Assert.AreEqual(MyString1, MyByte1.ToString(), "Compare failed for MyString1 and MyByte1");
 204                 Assert.AreEqual(MyString2, MyByte2.ToString(), "Compare failed for MyString2 and MyByte2");
 205                 Assert.AreEqual(MyString3, MyByte3.ToString(), "Compare failed for MyString3 and MyByte3");
 206                 //test ToString(string format)
 207                 for (int i=0; i < Formats1.Length; i++) {
 208                         Assert.AreEqual(Results1[i], MyByte2.ToString(Formats1[i]), "Compare failed for Formats1["+i.ToString()+"]");
 209                         Assert.AreEqual(Results2[i], MyByte3.ToString(Formats2[i]), "Compare failed for Formats2["+i.ToString()+"]");
 210                 }
 211                 //test ToString(string format, IFormatProvider provider);
 212                 for (int i=0; i < Formats1.Length; i++) {
 213                         Assert.AreEqual(Results1_Nfi[i], MyByte2.ToString(Formats1[i], Nfi), "Compare failed for Formats1["+i.ToString()+"] with Nfi");
 214                         Assert.AreEqual(Results2_Nfi[i], MyByte3.ToString(Formats2[i], Nfi), "Compare failed for Formats2["+i.ToString()+"] with Nfi");
 215                 }
 216                 try {
 217                         MyByte1.ToString("z");
 218                         Assert.Fail ("Should raise a System.FormatException");
 219                 }
 220                 catch (Exception e) {
 221                         Assert.AreEqual(typeof(FormatException), e.GetType(), "Exception is the wrong type");
 222                 }
 223
 224         }
 225
 226         [Test]
 227         public void ToString_Defaults ()
 228         {
 229                 byte i = 254;
 230                 // everything defaults to "G"
 231                 string def = i.ToString ("G");
 232                 Assert.AreEqual (def, i.ToString (), "ToString()");
 233                 Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
 234                 Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
 235                 Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
 236                 Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
 237                 Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
 238
 239                 Assert.AreEqual ("254", def, "ToString(G)");
 240         }
 241 }
 242
 243 }