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// Int16Test.cs - NUnit Test Cases for the System.Int16 struct
//
// Mario Martinez (mariom925@home.om)
//
// (C) Ximian, Inc. http://www.ximian.com
//
using NUnit.Framework;
using System;
using System.Threading;
using System.Globalization;
namespace MonoTests.System
{
[TestFixture]
public class Int16Test
{
private const Int16 MyInt16_1 = -42;
private const Int16 MyInt16_2 = -32768;
private const Int16 MyInt16_3 = 32767;
private const string MyString1 = "-42";
private const string MyString2 = "-32768";
private const string MyString3 = "32767";
private string[] Formats1 = {"c", "d", "e", "f", "g", "n", "p", "x" };
private string[] Formats2 = {"c5", "d5", "e5", "f5", "g5", "n5", "p5", "x5" };
private string[] Results1 = {null, "-32768", "-3.276800e+004", "-32768.00",
"-32768", "-32,768.00", "-3,276,800.00 %", "8000"};
private string[] Results2 = {null, "32767", "3.27670e+004", "32767.00000",
"32767", "32,767.00000", "3,276,700.00000 %", "07fff"};
private string[] ResultsNfi1 = {"("+NumberFormatInfo.InvariantInfo.CurrencySymbol+"32,768.00)", "-32768", "-3.276800e+004", "-32768.00",
"-32768", "-32,768.00", "-3,276,800.00 %", "8000"};
private string[] ResultsNfi2 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"32,767.00000", "32767", "3.27670e+004", "32767.00000",
"32767", "32,767.00000", "3,276,700.00000 %", "07fff"};
private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
private CultureInfo old_culture;
[TestFixtureSetUp]
public void SetUp ()
{
old_culture = Thread.CurrentThread.CurrentCulture;
// Set culture to en-US and don't let the user override.
Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
// We can't initialize this until we set the culture.
Results1 [0] = "("+NumberFormatInfo.CurrentInfo.CurrencySymbol+"32,768.00)";
Results2 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol+"32,767.00000";
}
[TestFixtureTearDown]
public void TearDown ()
{
Thread.CurrentThread.CurrentCulture = old_culture;
}
[Test]
public void TestMinMax()
{
Assert.AreEqual(Int16.MinValue, MyInt16_2);
Assert.AreEqual(Int16.MaxValue, MyInt16_3);
}
[Test]
public void TestCompareTo()
{
Assert.IsTrue(MyInt16_3.CompareTo(MyInt16_2) > 0);
Assert.IsTrue(MyInt16_2.CompareTo(MyInt16_2) == 0);
Assert.IsTrue(MyInt16_1.CompareTo((Int16)(-42)) == 0);
Assert.IsTrue(MyInt16_2.CompareTo(MyInt16_3) < 0);
try {
MyInt16_2.CompareTo((object)100);
Assert.Fail ("Should raise a System.ArgumentException");
}
catch (Exception e) {
Assert.IsTrue(typeof(ArgumentException) == e.GetType());
}
}
[Test]
public void TestEquals()
{
Assert.IsTrue(MyInt16_1.Equals(MyInt16_1));
Assert.IsTrue(MyInt16_1.Equals((object)(Int16)(-42)));
Assert.IsTrue(MyInt16_1.Equals((object)(SByte)(-42)) == false);
Assert.IsTrue(MyInt16_1.Equals(MyInt16_2) == false);
}
[Test]
public void TestGetHashCode()
{
try {
MyInt16_1.GetHashCode();
MyInt16_2.GetHashCode();
MyInt16_3.GetHashCode();
}
catch {
Assert.Fail ("GetHashCode should not raise an exception here");
}
}
[Test]
public void TestParse()
{
//test Parse(string s)
Assert.IsTrue(MyInt16_1 == Int16.Parse(MyString1));
Assert.IsTrue(MyInt16_2 == Int16.Parse(MyString2));
Assert.IsTrue(MyInt16_3 == Int16.Parse(MyString3));
try {
Int16.Parse(null);
Assert.Fail ("Should raise a System.ArgumentNullException");
}
catch (Exception e) {
Assert.IsTrue(typeof(ArgumentNullException) == e.GetType());
}
try {
Int16.Parse("not-a-number");
Assert.Fail ("Should raise a System.FormatException");
}
catch (Exception e) {
Assert.IsTrue(typeof(FormatException) == e.GetType());
}
try {
int OverInt = Int16.MaxValue + 1;
Int16.Parse(OverInt.ToString());
Assert.Fail ("Should raise a System.OverflowException");
}
catch (Exception e) {
Assert.IsTrue(typeof(OverflowException) == e.GetType());
}
//test Parse(string s, NumberStyles style)
Assert.IsTrue(42 == Int16.Parse(" $42 ", NumberStyles.Currency));
try {
Int16.Parse("$42", NumberStyles.Integer);
Assert.Fail ("Should raise a System.FormatException");
}
catch (Exception e) {
Assert.IsTrue(typeof(FormatException) == e.GetType());
}
//test Parse(string s, IFormatProvider provider)
Assert.IsTrue(-42 == Int16.Parse(" -42 ", Nfi));
try {
Int16.Parse("%42", Nfi);
Assert.Fail ("Should raise a System.FormatException");
}
catch (Exception e) {
Assert.IsTrue(typeof(FormatException) == e.GetType());
}
//test Parse(string s, NumberStyles style, IFormatProvider provider)
Assert.IsTrue(16 == Int16.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
try {
Int16.Parse("$42", NumberStyles.Integer, Nfi);
Assert.Fail ("Should raise a System.FormatException");
}
catch (Exception e) {
Assert.IsTrue(typeof(FormatException) == e.GetType());
}
Assert.AreEqual (7345, Int64.Parse ("7345\0"), "#1");
Assert.AreEqual (7345, Int64.Parse ("7345\0\0\0 \0"), "#2");
Assert.AreEqual (7345, Int64.Parse ("7345\0\0\0 "), "#3");
Assert.AreEqual (7345, Int64.Parse ("7345\0\0\0"), "#4");
}
[Test]
public void TestToString()
{
//test ToString()
Assert.IsTrue(String.Compare(MyString1, MyInt16_1.ToString()) == 0);
Assert.IsTrue(String.Compare(MyString2, MyInt16_2.ToString()) == 0);
Assert.IsTrue(String.Compare(MyString3, MyInt16_3.ToString()) == 0);
//test ToString(string format)
/*
TODO: These tests are culture sensitive. Need to find a way to determine the culture
of the system to decide the correct expected result.
for (int i=0; i < Formats1.Length; i++) {
Assert.IsTrue(String.Compare(Results1[i], MyInt16_2.ToString(Formats1[i])) == 0);
Assert.IsTrue(String.Compare(Results2[i], MyInt16_3.ToString(Formats2[i])) == 0);
}
*/
//test ToString(string format, IFormatProvider provider);
for (int i=0; i < Formats1.Length; i++) {
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));
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));
}
try {
MyInt16_1.ToString("z");
Assert.Fail ("Should raise a System.FormatException");
}
catch (Exception e) {
Assert.IsTrue(typeof(FormatException) == e.GetType());
}
}
[Test]
public void ToString_Defaults ()
{
Int16 i = 254;
// everything defaults to "G"
string def = i.ToString ("G");
Assert.AreEqual (def, i.ToString (), "ToString()");
Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
Assert.AreEqual ("254", def, "ToString(G)");
}
}
}
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