public void VerifyCompression_LargeCorpus()
{
var stream = new MemoryStream();
var writer = new BitStreamWriter(stream, true);
var reader = new BitStreamReader(stream, true);
string input = TestResources.RFC5_Text;
var state = new TreeStateStore();
var compressor = new StaticHuffman<char>(CharacterFrequencies(input));
compressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
foreach (char ch in input)
{
compressor.WriteCode(ch, writer.Write);
}
writer.Flush();
state.Reset();
var decompressor = new StaticHuffman<char>(state.ReadSymbol, state.ReadUInt32);
stream.Position = 0;
foreach (char ch in input)
{
Assert.AreEqual(ch, decompressor.GetSymbol(reader.ReadBoolean));
}
}
public void VerifyCompression_astrachan_()
{
var stream = new MemoryStream();
string input = "astrachan_";
var compressor = new StaticHuffman<char>(CharacterFrequencies(input));
// Node ids: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
// Weights: 1 1 1 1 1 1 1 3 2 2 2 3 4 6 10
var state = new TreeState(8, '_', 'c', 'h', 'n', 'r', 's', 't', 'a', 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 7, 11,
12, 13);
compressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
state.Final();
var writer = new BitStreamWriter(stream, true);
foreach (char ch in input)
{
compressor.WriteCode(ch, writer.Write);
}
writer.Flush();
state.Reset();
var decompressor = new StaticHuffman<char>(state.ReadSymbol, state.ReadUInt32);
state.Final();
state.Reset();
decompressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
state.Final();
stream.Position = 0;
var reader = new BitStreamReader(stream, true);
foreach (char ch in input)
{
Assert.AreEqual(ch, decompressor.GetSymbol(reader.ReadBoolean));
}
}
public void VerifyCompression_LargeCorpus()
{
var stream = new MemoryStream();
var writer = new BitStreamWriter(stream, true);
var reader = new BitStreamReader(stream, true);
string input = TestResources.RFC5_Text;
var state = new TreeStateStore();
var compressor = new StaticHuffman <char>(CharacterFrequencies(input));
compressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
foreach (char ch in input)
{
compressor.WriteCode(ch, writer.Write);
}
writer.Flush();
state.Reset();
var decompressor = new StaticHuffman <char>(state.ReadSymbol, state.ReadUInt32);
stream.Position = 0;
foreach (char ch in input)
{
Assert.AreEqual(ch, decompressor.GetSymbol(reader.ReadBoolean));
}
}
public void VerifyTable()
{
string input = "astrachan_";
var compressor = new StaticHuffman <char>(CharacterFrequencies(input));
// Node ids: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
// Weights: 1 1 1 1 1 1 1 3 2 2 2 3 4 6 10
var state = new TreeState(8, '_', 'c', 'h', 'n', 'r', 's', 't', 'a', 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 7, 11,
12, 13);
compressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
state.Final();
}
public void VerifyCompression_astrachan_()
{
var stream = new MemoryStream();
string input = "astrachan_";
var compressor = new StaticHuffman <char>(CharacterFrequencies(input));
// Node ids: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
// Weights: 1 1 1 1 1 1 1 3 2 2 2 3 4 6 10
var state = new TreeState(8, '_', 'c', 'h', 'n', 'r', 's', 't', 'a', 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 7, 11,
12, 13);
compressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
state.Final();
var writer = new BitStreamWriter(stream, true);
foreach (char ch in input)
{
compressor.WriteCode(ch, writer.Write);
}
writer.Flush();
state.Reset();
var decompressor = new StaticHuffman <char>(state.ReadSymbol, state.ReadUInt32);
state.Final();
state.Reset();
decompressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
state.Final();
stream.Position = 0;
var reader = new BitStreamReader(stream, true);
foreach (char ch in input)
{
Assert.AreEqual(ch, decompressor.GetSymbol(reader.ReadBoolean));
}
}
public void VerifyTable()
{
string input = "astrachan_";
var compressor = new StaticHuffman<char>(CharacterFrequencies(input));
// Node ids: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
// Weights: 1 1 1 1 1 1 1 3 2 2 2 3 4 6 10
var state = new TreeState(8, '_', 'c', 'h', 'n', 'r', 's', 't', 'a', 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 7, 11,
12, 13);
compressor.WriteTable(state.WriteSymbol, state.WriteUInt32);
state.Final();
}