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//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Collections;
using System.IO;
// uncomment the define below to include unit tests
//#define nunit
#if nunit
using NUnit.Framework;
// Unit tests for the DotZLib class library
// ----------------------------------------
//
// Use this with NUnit 2 from http://www.nunit.org
//
namespace DotZLibTests
{
using DotZLib;
// helper methods
internal class Utils
{
public static bool byteArrEqual( byte[] lhs, byte[] rhs )
{
if (lhs.Length != rhs.Length)
return false;
for (int i = lhs.Length-1; i >= 0; --i)
if (lhs[i] != rhs[i])
return false;
return true;
}
}
[TestFixture]
public class CircBufferTests
{
#region Circular buffer tests
[Test]
public void SinglePutGet()
{
CircularBuffer buf = new CircularBuffer(10);
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
Assert.IsTrue(buf.Put( 1 ));
Assert.AreEqual( 1, buf.Size );
Assert.AreEqual( 1, buf.Get() );
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
}
[Test]
public void BlockPutGet()
{
CircularBuffer buf = new CircularBuffer(10);
byte[] arr = {1,2,3,4,5,6,7,8,9,10};
Assert.AreEqual( 10, buf.Put(arr,0,10) );
Assert.AreEqual( 10, buf.Size );
Assert.IsFalse( buf.Put(11) );
Assert.AreEqual( 1, buf.Get() );
Assert.IsTrue( buf.Put(11) );
byte[] arr2 = (byte[])arr.Clone();
Assert.AreEqual( 9, buf.Get(arr2,1,9) );
Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
}
#endregion
}
[TestFixture]
public class ChecksumTests
{
#region CRC32 Tests
[Test]
public void CRC32_Null()
{
CRC32Checksum crc32 = new CRC32Checksum();
Assert.AreEqual( 0, crc32.Value );
crc32 = new CRC32Checksum(1);
Assert.AreEqual( 1, crc32.Value );
crc32 = new CRC32Checksum(556);
Assert.AreEqual( 556, crc32.Value );
}
[Test]
public void CRC32_Data()
{
CRC32Checksum crc32 = new CRC32Checksum();
byte[] data = { 1,2,3,4,5,6,7 };
crc32.Update(data);
Assert.AreEqual( 0x70e46888, crc32.Value );
crc32 = new CRC32Checksum();
crc32.Update("penguin");
Assert.AreEqual( 0x0e5c1a120, crc32.Value );
crc32 = new CRC32Checksum(1);
crc32.Update("penguin");
Assert.AreEqual(0x43b6aa94, crc32.Value);
}
#endregion
#region Adler tests
[Test]
public void Adler_Null()
{
AdlerChecksum adler = new AdlerChecksum();
Assert.AreEqual(0, adler.Value);
adler = new AdlerChecksum(1);
Assert.AreEqual( 1, adler.Value );
adler = new AdlerChecksum(556);
Assert.AreEqual( 556, adler.Value );
}
[Test]
public void Adler_Data()
{
AdlerChecksum adler = new AdlerChecksum(1);
byte[] data = { 1,2,3,4,5,6,7 };
adler.Update(data);
Assert.AreEqual( 0x5b001d, adler.Value );
adler = new AdlerChecksum();
adler.Update("penguin");
Assert.AreEqual(0x0bcf02f6, adler.Value );
adler = new AdlerChecksum(1);
adler.Update("penguin");
Assert.AreEqual(0x0bd602f7, adler.Value);
}
#endregion
}
[TestFixture]
public class InfoTests
{
#region Info tests
[Test]
public void Info_Version()
{
Info info = new Info();
Assert.AreEqual("1.2.8", Info.Version);
Assert.AreEqual(32, info.SizeOfUInt);
Assert.AreEqual(32, info.SizeOfULong);
Assert.AreEqual(32, info.SizeOfPointer);
Assert.AreEqual(32, info.SizeOfOffset);
}
#endregion
}
[TestFixture]
public class DeflateInflateTests
{
#region Deflate tests
[Test]
public void Deflate_Init()
{
using (Deflater def = new Deflater(CompressLevel.Default))
{
}
}
private ArrayList compressedData = new ArrayList();
private uint adler1;
private ArrayList uncompressedData = new ArrayList();
private uint adler2;
public void CDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
compressedData.Add(data[i+startIndex]);
}
[Test]
public void Deflate_Compress()
{
compressedData.Clear();
byte[] testData = new byte[35000];
for (int i = 0; i < testData.Length; ++i)
testData[i] = 5;
using (Deflater def = new Deflater((CompressLevel)5))
{
def.DataAvailable += new DataAvailableHandler(CDataAvail);
def.Add(testData);
def.Finish();
adler1 = def.Checksum;
}
}
#endregion
#region Inflate tests
[Test]
public void Inflate_Init()
{
using (Inflater inf = new Inflater())
{
}
}
private void DDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
uncompressedData.Add(data[i+startIndex]);
}
[Test]
public void Inflate_Expand()
{
uncompressedData.Clear();
using (Inflater inf = new Inflater())
{
inf.DataAvailable += new DataAvailableHandler(DDataAvail);
inf.Add((byte[])compressedData.ToArray(typeof(byte)));
inf.Finish();
adler2 = inf.Checksum;
}
Assert.AreEqual( adler1, adler2 );
}
#endregion
}
[TestFixture]
public class GZipStreamTests
{
#region GZipStream test
[Test]
public void GZipStream_WriteRead()
{
using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
{
BinaryWriter writer = new BinaryWriter(gzOut);
writer.Write("hi there");
writer.Write(Math.PI);
writer.Write(42);
}
using (GZipStream gzIn = new GZipStream("gzstream.gz"))
{
BinaryReader reader = new BinaryReader(gzIn);
string s = reader.ReadString();
Assert.AreEqual("hi there",s);
double d = reader.ReadDouble();
Assert.AreEqual(Math.PI, d);
int i = reader.ReadInt32();
Assert.AreEqual(42,i);
}
}
#endregion
}
}
#endif
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