2 // © Copyright Henrik Ravn 2004
4 // Use, modification and distribution are subject to the Boost Software License, Version 1.0.
5 // (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
9 using System.Collections;
12 // uncomment the define below to include unit tests
15 using NUnit.Framework;
17 // Unit tests for the DotZLib class library
18 // ----------------------------------------
20 // Use this with NUnit 2 from http://www.nunit.org
23 namespace DotZLibTests
30 public static bool byteArrEqual( byte[] lhs, byte[] rhs )
32 if (lhs.Length != rhs.Length)
34 for (int i = lhs.Length-1; i >= 0; --i)
44 public class CircBufferTests
46 #region Circular buffer tests
48 public void SinglePutGet()
50 CircularBuffer buf = new CircularBuffer(10);
51 Assert.AreEqual( 0, buf.Size );
52 Assert.AreEqual( -1, buf.Get() );
54 Assert.IsTrue(buf.Put( 1 ));
55 Assert.AreEqual( 1, buf.Size );
56 Assert.AreEqual( 1, buf.Get() );
57 Assert.AreEqual( 0, buf.Size );
58 Assert.AreEqual( -1, buf.Get() );
62 public void BlockPutGet()
64 CircularBuffer buf = new CircularBuffer(10);
65 byte[] arr = {1,2,3,4,5,6,7,8,9,10};
66 Assert.AreEqual( 10, buf.Put(arr,0,10) );
67 Assert.AreEqual( 10, buf.Size );
68 Assert.IsFalse( buf.Put(11) );
69 Assert.AreEqual( 1, buf.Get() );
70 Assert.IsTrue( buf.Put(11) );
72 byte[] arr2 = (byte[])arr.Clone();
73 Assert.AreEqual( 9, buf.Get(arr2,1,9) );
74 Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
81 public class ChecksumTests
85 public void CRC32_Null()
87 CRC32Checksum crc32 = new CRC32Checksum();
88 Assert.AreEqual( 0, crc32.Value );
90 crc32 = new CRC32Checksum(1);
91 Assert.AreEqual( 1, crc32.Value );
93 crc32 = new CRC32Checksum(556);
94 Assert.AreEqual( 556, crc32.Value );
98 public void CRC32_Data()
100 CRC32Checksum crc32 = new CRC32Checksum();
101 byte[] data = { 1,2,3,4,5,6,7 };
103 Assert.AreEqual( 0x70e46888, crc32.Value );
105 crc32 = new CRC32Checksum();
106 crc32.Update("penguin");
107 Assert.AreEqual( 0x0e5c1a120, crc32.Value );
109 crc32 = new CRC32Checksum(1);
110 crc32.Update("penguin");
111 Assert.AreEqual(0x43b6aa94, crc32.Value);
119 public void Adler_Null()
121 AdlerChecksum adler = new AdlerChecksum();
122 Assert.AreEqual(0, adler.Value);
124 adler = new AdlerChecksum(1);
125 Assert.AreEqual( 1, adler.Value );
127 adler = new AdlerChecksum(556);
128 Assert.AreEqual( 556, adler.Value );
132 public void Adler_Data()
134 AdlerChecksum adler = new AdlerChecksum(1);
135 byte[] data = { 1,2,3,4,5,6,7 };
137 Assert.AreEqual( 0x5b001d, adler.Value );
139 adler = new AdlerChecksum();
140 adler.Update("penguin");
141 Assert.AreEqual(0x0bcf02f6, adler.Value );
143 adler = new AdlerChecksum(1);
144 adler.Update("penguin");
145 Assert.AreEqual(0x0bd602f7, adler.Value);
152 public class InfoTests
156 public void Info_Version()
158 Info info = new Info();
159 Assert.AreEqual("1.2.7", Info.Version);
160 Assert.AreEqual(32, info.SizeOfUInt);
161 Assert.AreEqual(32, info.SizeOfULong);
162 Assert.AreEqual(32, info.SizeOfPointer);
163 Assert.AreEqual(32, info.SizeOfOffset);
169 public class DeflateInflateTests
171 #region Deflate tests
173 public void Deflate_Init()
175 using (Deflater def = new Deflater(CompressLevel.Default))
180 private ArrayList compressedData = new ArrayList();
183 private ArrayList uncompressedData = new ArrayList();
186 public void CDataAvail(byte[] data, int startIndex, int count)
188 for (int i = 0; i < count; ++i)
189 compressedData.Add(data[i+startIndex]);
193 public void Deflate_Compress()
195 compressedData.Clear();
197 byte[] testData = new byte[35000];
198 for (int i = 0; i < testData.Length; ++i)
201 using (Deflater def = new Deflater((CompressLevel)5))
203 def.DataAvailable += new DataAvailableHandler(CDataAvail);
206 adler1 = def.Checksum;
211 #region Inflate tests
213 public void Inflate_Init()
215 using (Inflater inf = new Inflater())
220 private void DDataAvail(byte[] data, int startIndex, int count)
222 for (int i = 0; i < count; ++i)
223 uncompressedData.Add(data[i+startIndex]);
227 public void Inflate_Expand()
229 uncompressedData.Clear();
231 using (Inflater inf = new Inflater())
233 inf.DataAvailable += new DataAvailableHandler(DDataAvail);
234 inf.Add((byte[])compressedData.ToArray(typeof(byte)));
236 adler2 = inf.Checksum;
238 Assert.AreEqual( adler1, adler2 );
244 public class GZipStreamTests
246 #region GZipStream test
248 public void GZipStream_WriteRead()
250 using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
252 BinaryWriter writer = new BinaryWriter(gzOut);
253 writer.Write("hi there");
254 writer.Write(Math.PI);
258 using (GZipStream gzIn = new GZipStream("gzstream.gz"))
260 BinaryReader reader = new BinaryReader(gzIn);
261 string s = reader.ReadString();
262 Assert.AreEqual("hi there",s);
263 double d = reader.ReadDouble();
264 Assert.AreEqual(Math.PI, d);
265 int i = reader.ReadInt32();
266 Assert.AreEqual(42,i);