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//
// UnicodeEncodingTest.cs - NUnit Test Cases for System.Text.UnicodeEncoding
//
// Author:
// Patrick Kalkman kalkman@cistron.nl
//
// (C) 2003 Patrick Kalkman
//
using NUnit.Framework;
using System;
using System.Text;
namespace MonoTests.System.Text
{
[TestFixture]
public class UnicodeEncodingTest
{
[Test]
public void TestEncodingGetBytes1()
{
//pi and sigma in unicode
string Unicode = "\u03a0\u03a3";
byte[] UniBytes;
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (); //little-endian
UniBytes = UnicodeEnc.GetBytes (Unicode);
Assertion.AssertEquals ("Uni #1", 0xA0, UniBytes [0]);
Assertion.AssertEquals ("Uni #2", 0x03, UniBytes [1]);
Assertion.AssertEquals ("Uni #3", 0xA3, UniBytes [2]);
Assertion.AssertEquals ("Uni #4", 0x03, UniBytes [3]);
}
[Test]
public void TestEncodingGetBytes2()
{
//pi and sigma in unicode
string Unicode = "\u03a0\u03a3";
byte[] UniBytes;
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (true, true); //big-endian
UniBytes = UnicodeEnc.GetBytes (Unicode);
Assertion.AssertEquals ("Uni #1", 0x03, UniBytes [0]);
Assertion.AssertEquals ("Uni #2", 0xA0, UniBytes [1]);
Assertion.AssertEquals ("Uni #3", 0x03, UniBytes [2]);
Assertion.AssertEquals ("Uni #4", 0xA3, UniBytes [3]);
}
[Test]
public void TestEncodingGetBytes3()
{
//pi and sigma in unicode
string Unicode = "\u03a0\u03a3";
byte[] UniBytes = new byte [4];
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (); //little-endian
int Cnt = UnicodeEnc.GetBytes (Unicode.ToCharArray(), 0, Unicode.Length, UniBytes, 0);
Assertion.AssertEquals ("Uni #1", 4, Cnt);
Assertion.AssertEquals ("Uni #2", 0xA0, UniBytes [0]);
Assertion.AssertEquals ("Uni #3", 0x03, UniBytes [1]);
Assertion.AssertEquals ("Uni #4", 0xA3, UniBytes [2]);
Assertion.AssertEquals ("Uni #5", 0x03, UniBytes [3]);
}
[Test]
public void TestEncodingDecodingGetBytes1()
{
//pi and sigma in unicode
string Unicode = "\u03a0\u03a3";
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (); //little-endian
//Encode the unicode string.
byte[] UniBytes = UnicodeEnc.GetBytes (Unicode);
//Decode the bytes to a unicode char array.
char[] UniChars = UnicodeEnc.GetChars (UniBytes);
string Result = new string(UniChars);
Assertion.AssertEquals ("Uni #1", Unicode, Result);
}
[Test]
public void TestEncodingDecodingGetBytes2()
{
//pi and sigma in unicode
string Unicode = "\u03a0\u03a3";
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (true, true); //big-endian
//Encode the unicode string.
byte[] UniBytes = UnicodeEnc.GetBytes (Unicode);
//Decode the bytes to a unicode char array.
char[] UniChars = UnicodeEnc.GetChars (UniBytes);
string Result = new string(UniChars);
Assertion.AssertEquals ("Uni #1", Unicode, Result);
}
[Test]
public void TestEncodingGetCharCount ()
{
byte[] b = new byte[] {255, 254, 115, 0, 104, 0, 105, 0};
UnicodeEncoding encoding = new UnicodeEncoding ();
Assertion.AssertEquals ("GetCharCount #1", 3,
encoding.GetCharCount (b, 2, b.Length - 2));
}
[Test]
public void TestPreamble1()
{
//litle-endian with byte order mark.
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (false, true);
byte[] PreAmble = UnicodeEnc.GetPreamble();
Assertion.AssertEquals ("Uni #1", 0xFF, PreAmble [0]);
Assertion.AssertEquals ("Uni #2", 0xFE, PreAmble [1]);
}
[Test]
public void TestPreamble2()
{
//big-endian with byte order mark.
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (true, true);
byte[] PreAmble = UnicodeEnc.GetPreamble();
Assertion.AssertEquals ("Uni #1", 0xFE, PreAmble [0]);
Assertion.AssertEquals ("Uni #2", 0xFF, PreAmble [1]);
}
[Test]
public void TestPreamble3()
{
//little-endian without byte order mark.
UnicodeEncoding UnicodeEnc = new UnicodeEncoding (false, false);
byte[] PreAmble = UnicodeEnc.GetPreamble();
Assertion.AssertEquals ("Uni #1", 0, PreAmble.Length);
}
[Test]
#if NET_2_0
[Category ("NotWorking")]
#endif
public void TestMaxCharCount()
{
UnicodeEncoding UnicodeEnc = new UnicodeEncoding ();
#if NET_2_0
// where is this extra 1 coming from?
Assertion.AssertEquals ("UTF #1", 25, UnicodeEnc.GetMaxCharCount(51));
#else
Assertion.AssertEquals ("UTF #1", 25, UnicodeEnc.GetMaxCharCount(50));
#endif
}
[Test]
#if NET_2_0
[Category ("NotWorking")]
#endif
public void TestMaxByteCount()
{
UnicodeEncoding UnicodeEnc = new UnicodeEncoding ();
#if NET_2_0
// is this extra 2 BOM?
Assertion.AssertEquals ("UTF #1", 102, UnicodeEnc.GetMaxByteCount(50));
#else
Assertion.AssertEquals ("UTF #1", 100, UnicodeEnc.GetMaxByteCount(50));
#endif
}
}
}
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