// Int64Test.cs - NUnit Test Cases for the System.Int64 struct
//
// Author: Martin Weindel (martin.weindel@t-online.de)
//
// (C) Martin Weindel, 2001
// 
// tests ToString and Parse function with the culture independent 
// NumberFormatInfo.InvariantInfo

using NUnit.Framework;
using System;
using System.Globalization;
using System.Threading;

using AssertType = NUnit.Framework.Assert;

    /// <summary>
    /// Tests for System.Int64
    /// </summary>
namespace MonoTests.System
{

[TestFixture]
public class Int64Test : Assertion
{
	private const Int64 MyInt64_1 = -42;
	private const Int64 MyInt64_2 = -9223372036854775808;
	private const Int64 MyInt64_3 = 9223372036854775807;
	private const string MyString1 = "-42";
	private const string MyString2 = "-9223372036854775808";
	private const string MyString3 = "9223372036854775807";
	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 = {"", "-9223372036854775808", "-9.223372e+018", "-9223372036854775808.00",
	                                  "-9223372036854775808", "-9,223,372,036,854,775,808.00", "-922,337,203,685,477,580,800.00 %", "8000000000000000"};
	private string[] Results2 = {"", "9223372036854775807", "9.22337e+018", "9223372036854775807.00000",
	                                  "9.2234e+18", "9,223,372,036,854,775,807.00000", "922,337,203,685,477,580,700.00000 %", "7fffffffffffffff"};
	private string[] ResultsNfi1 = {"("+NumberFormatInfo.InvariantInfo.CurrencySymbol+"9,223,372,036,854,775,808.00)", "-9223372036854775808", "-9.223372e+018", "-9223372036854775808.00",
	                                  "-9223372036854775808", "-9,223,372,036,854,775,808.00", "-922,337,203,685,477,580,800.00 %", "8000000000000000"};
	private string[] ResultsNfi2 = {""+NumberFormatInfo.InvariantInfo.CurrencySymbol+"9,223,372,036,854,775,807.00000", "9223372036854775807", "9.22337e+018", "9223372036854775807.00000",
	                                  "9.2234e+18", "9,223,372,036,854,775,807.00000", "922,337,203,685,477,580,700.00000 %", "7fffffffffffffff"};

	private long[] vals
        = { 0, Int64.MaxValue, Int64.MinValue,
              1L, 12L, 123L, 1234L, -123L, 
              1234567890123456L, 6543210987654321L };

	private const long val1 = -1234567L;
	private const long val2 = 1234567L;
	private const string sval1Test1 = "  -1,234,567   ";
	private const string sval1Test2 = "  -1234567   ";
	//private const string sval1Test3 = "  -12345,,,,67   "; // interesting: this case works on SDK Beta2, but the specification says nothing about this case
	private const string sval1Test4 = "  -12345 67   ";
	private  string sval1Test5 = "  -"+NumberFormatInfo.InvariantInfo.CurrencySymbol+"1,234,567.00 ";
	private  string sval1Test6 = "("+NumberFormatInfo.InvariantInfo.CurrencySymbol+"1,234,567.00)";
	private const string sval1Test7 = "-1,234,567.00";
	private const string sval1UserCur1 = "1234/5/67:000 XYZ-";
	private const string sval2UserCur1 = "1234/5/67:000 XYZ";
	private const string sval1UserPercent1 = "-%%%1~2~3~4~5~6~7~0~0;0";
	private const string sval2UserPercent1 = "%%%1~2~3~4~5~6~7~0~0;0";
	private const NumberStyles style1 =  NumberStyles.AllowLeadingWhite | NumberStyles.AllowLeadingSign
					| NumberStyles.AllowTrailingWhite | NumberStyles.AllowThousands;
	private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
	private NumberFormatInfo NfiUser;

	private CultureInfo old_culture;

	[SetUp]
	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);

		int cdd = NumberFormatInfo.CurrentInfo.CurrencyDecimalDigits;
		string csym = NumberFormatInfo.CurrentInfo.CurrencySymbol;
		string csuffix = (cdd > 0 ? "." : "").PadRight(cdd + (cdd > 0 ? 1 : 0), '0');
		
		string decimals = new String ('0', NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
		string perPattern = new string[] {"n %","n%","%n"} [NumberFormatInfo.CurrentInfo.PercentPositivePattern];
		
		Results1[0] = "(" + csym + "9,223,372,036,854,775,808" + csuffix + ")";
		Results1[3] = "-9223372036854775808." + decimals;
		Results1[5] = "-9,223,372,036,854,775,808." + decimals;
		Results1[6] = perPattern.Replace ("n","-922,337,203,685,477,580,800.00");
		
		Results2[0] = csym + "9,223,372,036,854,775,807.00000";
		Results2[6] = perPattern.Replace ("n","922,337,203,685,477,580,700.00000");
		
		NfiUser = new NumberFormatInfo();
		NfiUser.CurrencyDecimalDigits = 3;
		NfiUser.CurrencyDecimalSeparator = ":";
		NfiUser.CurrencyGroupSeparator = "/";
		NfiUser.CurrencyGroupSizes = new int[] { 2,1,0 };
		NfiUser.CurrencyNegativePattern = 10;  // n $-
		NfiUser.CurrencyPositivePattern = 3;  // n $
		NfiUser.CurrencySymbol = "XYZ";
		NfiUser.PercentDecimalDigits = 1;
		NfiUser.PercentDecimalSeparator = ";";
		NfiUser.PercentGroupSeparator = "~";
		NfiUser.PercentGroupSizes = new int[] {1};
		NfiUser.PercentNegativePattern = 2;
		NfiUser.PercentPositivePattern = 2;
		NfiUser.PercentSymbol = "%%%";
	}

	[TearDown]
	public void TearDown ()
	{
		Thread.CurrentThread.CurrentCulture = old_culture;
	}

	public void TestMinMax()
	{
		
		AssertEquals(Int64.MinValue, MyInt64_2);
		AssertEquals(Int64.MaxValue, MyInt64_3);
	}
	
	public void TestCompareTo()
	{
		Assert(MyInt64_3.CompareTo(MyInt64_2) > 0);
		Assert(MyInt64_2.CompareTo(MyInt64_2) == 0);
		Assert(MyInt64_1.CompareTo((object)(Int64)(-42)) == 0);
		Assert(MyInt64_2.CompareTo(MyInt64_3) < 0);
		try {
			MyInt64_2.CompareTo((object)(Int16)100);
			Fail("Should raise a System.ArgumentException");
		}
		catch (Exception e) {
			Assert(typeof(ArgumentException) == e.GetType());
		}
	}

	public void TestEquals()
	{
		Assert(MyInt64_1.Equals(MyInt64_1));
		Assert(MyInt64_1.Equals((object)(Int64)(-42)));
		Assert(MyInt64_1.Equals((object)(SByte)(-42)) == false);
		Assert(MyInt64_1.Equals(MyInt64_2) == false);
	}
	
	public void TestGetHashCode()
	{
		try {
			MyInt64_1.GetHashCode();
			MyInt64_2.GetHashCode();
			MyInt64_3.GetHashCode();
		}
		catch {
			Fail("GetHashCode should not raise an exception here");
		}
	}
	
    public void TestRoundTripGeneral() 
    {
        foreach(long lv in vals) 
        {
            string s = lv.ToString(Nfi);
            long lv2 = Int64.Parse(s);
            Assert(lv == lv2);
            long lv3 = Int64.Parse(s, NumberStyles.Integer, Nfi);
            Assert(lv == lv3);
        }
    }

    public void TestRoundTripHex() 
    {
        foreach(long lv in vals) 
        {
            string s = lv.ToString("x", Nfi);
            long lv2 = Int64.Parse(s, NumberStyles.HexNumber, Nfi);
            Assert(lv == lv2);
        }
    }

    public void TestParseNull()
    {
        try 
        {
            Int64.Parse(null);
            Fail("Should raise System.ArgumentNullException"); 
        } 
        catch (ArgumentNullException) 
        {
            // ok
        }
    }

    public void TestParse()
    {
        long lv;

        lv = Int64.Parse(sval1Test1, style1, Nfi);
        AssertEquals("Long value should be equal for Test1", val1, lv);

	try
        {
            lv = Int64.Parse(sval1Test1, Nfi);
            Fail("Should raise FormatException 1");
        }
        catch (FormatException)
        {
            // ok
        }

        lv = Int64.Parse(sval1Test2, style1, Nfi);
        AssertEquals("Value should be the same for Test2 with style1", val1, lv);
        lv = Int64.Parse(sval1Test2, Nfi);
        AssertEquals("Value should be the same for Test2 without style1", val1, lv);

	try
        {
            lv = Int64.Parse(sval1Test4, style1, Nfi);
            Fail("Should raise FormatException 3");
        }
        catch (FormatException)
        {
            // ok
        }

        lv = Int64.Parse(sval1Test5, NumberStyles.Currency, Nfi);
        AssertEquals("Value should be the same for Test5 and currency style", val1, lv);

	//test Parse(string s)
	Assert(MyInt64_1 == Int64.Parse(MyString1));
	Assert(MyInt64_2 == Int64.Parse(MyString2));
	Assert(MyInt64_3 == Int64.Parse(MyString3));
	try {
		Int64.Parse(null);
		Fail("#1:Should raise a System.ArgumentNullException");
	}
	catch (Exception e) {
		Assert("#2", typeof(ArgumentNullException) == e.GetType());
	}
	try {
		Int64.Parse("not-a-number");
		Fail("#3:Should raise a System.FormatException");
	}
	catch (Exception e) {
		Assert("#4", typeof(FormatException) == e.GetType());
	}
	//test Parse(string s, NumberStyles style)
	try {
		double OverInt = (double)Int64.MaxValue + 1;
		Int64.Parse(OverInt.ToString(), NumberStyles.Float);
		Fail("#5:Should raise a System.OverflowException");
	}
	catch (Exception e) {
		Assert("#6", typeof(OverflowException) == e.GetType());
	}
	try {
		Int64.Parse("10000000000000000", NumberStyles.HexNumber);
		Fail("#7:Should raise a System.OverflowException");
	}
	catch (Exception e) {
		Assert("#8", typeof(OverflowException) == e.GetType());
	}
	try {
		double OverInt = (double)Int64.MaxValue + 1;
		Int64.Parse(OverInt.ToString(), NumberStyles.Integer);
		Fail("#9:Should raise a System.FormatException");
	}
	catch (Exception e) {
		Assert("#10", typeof(FormatException) == e.GetType());
	}
	AssertEquals("A1", (long)42, Int64.Parse(" "+NumberFormatInfo.CurrentInfo.CurrencySymbol+"42 ", NumberStyles.Currency));
	try {
		Int64.Parse(NumberFormatInfo.CurrentInfo.CurrencySymbol+"42", NumberStyles.Integer);
		Fail("#11:Should raise a System.FormatException");
	}
	catch (Exception e) {
		Assert("#12", typeof(FormatException) == e.GetType());
	}
	//test Parse(string s, IFormatProvider provider)
	Assert("A2", -42 == Int64.Parse(" -42 ", Nfi));
	try {
		Int64.Parse("%42", Nfi);
		Fail("#13:Should raise a System.FormatException");
	}
	catch (Exception e) {
		Assert("#14", typeof(FormatException) == e.GetType());
	}
	//test Parse(string s, NumberStyles style, IFormatProvider provider)
	Assert("A3", 16 == Int64.Parse(" 10 ", NumberStyles.HexNumber, Nfi));
	try {
		Int64.Parse(NumberFormatInfo.CurrentInfo.CurrencySymbol+"42", NumberStyles.Integer, Nfi);
		Fail("#15:Should raise a System.FormatException");
	}
	catch (Exception e) {
		Assert("#16", typeof(FormatException) == e.GetType());
	}
	try {
		long.Parse ("9223372036854775808");
		AssertType.Fail ("#17:should raise an OverflowException");
	} catch (Exception e) {
		Assert("#18", typeof(OverflowException) == e.GetType());
	}
	try {
		long.Parse ("9223372036854775808", CultureInfo.InvariantCulture);
		AssertType.Fail ("#19:should raise an OverflowException");
	} catch (Exception e) {
		Assert("#20", typeof(OverflowException) == e.GetType());
	}
    }

    public void TestToString() 
    {
        string s;

        s = val1.ToString("c", Nfi);
        Assert("val1 does not become sval1Test6", s.Equals(sval1Test6));

        s = val1.ToString("n", Nfi);
        AssertEquals("val1 does not become sval1Test7", sval1Test7, s);

	//test ToString()
	AssertEquals("MyInt64_1.ToString()", MyString1, MyInt64_1.ToString());
	AssertEquals("MyInt64_2.ToString()", MyString2, MyInt64_2.ToString());
	AssertEquals("MyInt64_3.ToString()", MyString3, MyInt64_3.ToString());
	//test ToString(string format)
	for (int i=0; i < Formats1.Length; i++) {
		AssertEquals("MyInt64_2.ToString(Formats1["+i+"])", Results1[i], MyInt64_2.ToString(Formats1[i]));
		AssertEquals("MyInt64_3.ToString(Formats2["+i+"])", Results2[i], MyInt64_3.ToString(Formats2[i]));
	}
	//test ToString(string format, IFormatProvider provider);
	for (int i=0; i < Formats1.Length; i++) {
		AssertEquals("MyInt64_2.ToString(Formats1["+i+"], Nfi)", ResultsNfi1[i], MyInt64_2.ToString(Formats1[i], Nfi));
		AssertEquals("MyInt64_3.ToString(Formats2["+i+"], Nfi)", ResultsNfi2[i], MyInt64_3.ToString(Formats2[i], Nfi));
	}
	try {
		MyInt64_1.ToString("z");
		Fail("Should raise a System.FormatException");
	}
	catch (Exception e) {
		AssertEquals("Exception is wrong type", typeof(FormatException), e.GetType());
	}
    }

    public void TestUserCurrency()
    {
        string s= "";
        long v;
	int iTest = 1;
	try {
		s = val1.ToString("c", NfiUser);
		iTest++;
		AssertEquals("Currency value type 1 is not what we want to try to parse", sval1UserCur1, s);
		iTest++;
		v = Int64.Parse(s, NumberStyles.Currency, NfiUser);
		iTest++;
		Assert(v == val1);
	} catch (Exception e) {
		Fail ("1 Unexpected exception at iTest = " + iTest + ", s = " + s + ":e = " + e);
	}
   
	iTest = 1;
	try {
		s = val2.ToString("c", NfiUser);
		iTest++;
		AssertEquals("Currency value type 2 is not what we want to try to parse", sval2UserCur1, s);
		iTest++;
		v = Int64.Parse(s, NumberStyles.Currency, NfiUser);
		iTest++;
		Assert(v == val2);
	} catch (Exception e) {
		Fail ("2 Unexpected exception at iTest = " + iTest + ":e = " + e);
	}
    }

    public void TestUserPercent()
    {
        string s;

        s = val1.ToString("p", NfiUser);
        Assert(s.Equals(sval1UserPercent1));

        s = val2.ToString("p", NfiUser);
        Assert(s.Equals(sval2UserPercent1));
    }

		[Test]
		public void Parse_MaxValue ()
		{
			AssertEquals ("9223372036854775807", Int64.MaxValue, Int64.Parse ("9223372036854775807"));
		}

		[Test]
		public void Parse_MinValue ()
		{
			AssertEquals ("-9223372036854775808,10", Int64.MinValue, Int64.Parse ("-9223372036854775808"));
		}

		[Test]
		[ExpectedException (typeof (OverflowException))]
		public void Parse_OverByOneMaxValue ()
		{
			Int64.Parse ("9223372036854775808");
		}

		[Test]
		[ExpectedException (typeof (OverflowException))]
		public void Parse_WayOverMaxValue ()
		{
			Int64.Parse ("1" + Int64.MaxValue.ToString ());
		}

		[Test]
		[ExpectedException (typeof (OverflowException))]
		public void Parse_OverByOneMinValue ()
		{
			Int64.Parse ("-9223372036854775809");
		}

		[Test]
		[ExpectedException (typeof (OverflowException))]
		public void Parse_WayOverMinValue ()
		{
			Int64.Parse (Int64.MinValue.ToString () + "1");
		}

		[Test]
		public void ToString_Defaults () 
		{
			Int64 i = 254;
			// everything defaults to "G"
			string def = i.ToString ("G");
			AssertEquals ("ToString()", def, i.ToString ());
			AssertEquals ("ToString((IFormatProvider)null)", def, i.ToString ((IFormatProvider)null));
			AssertEquals ("ToString((string)null)", def, i.ToString ((string)null));
			AssertEquals ("ToString(empty)", def, i.ToString (String.Empty));
			AssertEquals ("ToString(null,null)", def, i.ToString (null, null));
			AssertEquals ("ToString(empty,null)", def, i.ToString (String.Empty, null));

			AssertEquals ("ToString(G)", "254", def);
		}
	}
}