public void GetOptimalBitsCount()
{
Assert.AreEqual(5, BaseN.GetOptimalBitsCount2(32, out var charsCountInBits));
Assert.AreEqual(6, BaseN.GetOptimalBitsCount2(64, out charsCountInBits));
Assert.AreEqual(32, BaseN.GetOptimalBitsCount2(85, out charsCountInBits));
Assert.AreEqual(13, BaseN.GetOptimalBitsCount2(91, out charsCountInBits));
StringBuilder builder = new StringBuilder();
for (int i = 2; i <= 256; i++)
{
var bits = BaseBigN.GetOptimalBitsCount2((uint)i, out charsCountInBits, 512);
double ratio = (double)bits / charsCountInBits;
builder.AppendLine(bits + " " + charsCountInBits + " "+ ratio.ToString("0.0000000"));
}
string str = builder.ToString();
}
public void EncodeDecodeBaseBigNMaxCompression()
{
byte testByte = 157;
List<byte> bytes = new List<byte>();
for (uint radix = 2; radix < 1000; radix++)
{
var baseN = new BaseBigN(StringGenerator.GetAlphabet((int)radix), 256, null, false, false, true);
int testBytesCount = Math.Max((baseN.BlockBitsCount + 7) / 8, baseN.BlockCharsCount);
bytes.Clear();
for (int i = 0; i <= testBytesCount + 1; i++)
{
var array = bytes.ToArray();
var encoded = baseN.Encode(array);
var decoded = baseN.Decode(encoded);
CollectionAssert.AreEqual(array, decoded);
bytes.Add(testByte);
}
}
}
public void EncodeDecodeBaseBigN()
{
byte testByte = 157;
List <byte> bytes = new List <byte>();
for (uint radix = 2; radix < 1000; radix++)
{
var baseN = new BaseBigN(StringGenerator.GetAlphabet((int)radix), 256);
int testBytesCount = Math.Max((baseN.BlockBitsCount + 7) / 8, baseN.BlockCharsCount);
bytes.Clear();
for (int i = 0; i <= testBytesCount + 1; i++)
{
var array = bytes.ToArray();
var encoded = baseN.Encode(array);
var decoded = baseN.Decode(encoded);
CollectionAssert.AreEqual(array, decoded);
bytes.Add(testByte);
}
}
}
private Base GetMethod()
{
Base method = null;
string alphabet = tbAlphabet.Text;
if (tbSpecialChar.Text.Length > 1)
throw new ArgumentException("Special char should contains one symbol");
char special = string.IsNullOrWhiteSpace(tbSpecialChar.Text) ? (char)0 : tbSpecialChar.Text[0];
Encoding textEncoding = cmbTextEncoding.SelectedItem != null ?
(Encoding)((ComboBoxItem)cmbTextEncoding.SelectedItem).Value : null;
bool parallel = cbParallel.Checked;
switch (cmbMethod.SelectedItem.ToString())
{
case "Base32":
method = new Base32(alphabet, special, textEncoding);
break;
case "Base64":
method = new Base64(alphabet, special, textEncoding, parallel);
break;
case "Base128":
method = new Base128(alphabet, special, textEncoding);
break;
case "Base256":
method = new Base256(alphabet, special, textEncoding);
break;
case "Base1024":
method = new Base1024(alphabet, special, textEncoding);
break;
case "Base4096":
method = new Base4096(alphabet, special, textEncoding);
break;
case "ZBase32":
method = new ZBase32(alphabet, special, textEncoding);
break;
case "Base85":
method = new Base85(alphabet, special, cbPrefixPostfix.Checked, textEncoding);
break;
case "Base91":
method = new Base91(alphabet, special, textEncoding);
break;
case "BaseN":
method = new BaseN(alphabet, (uint)nudMaxBitsCount.Value, textEncoding, cbReverseOrder.Checked, parallel);
break;
case "BaseBigN":
method = new BaseBigN(alphabet, (uint)nudMaxBitsCount.Value, textEncoding,
cbReverseOrder.Checked, parallel, cbMaxCompression.Checked);
break;
}
tbBitsPerChars.Text = method.BlockBitsCount + "/" + method.BlockCharsCount;
tbRatio.Text = ((double)method.BlockBitsCount / method.BlockCharsCount).ToString("0.000000");
nudAlphabetLength.Value = method.CharsCount;
return method;
}
private Base GetMethod()
{
Base method = null;
string alphabet = tbAlphabet.Text;
if (tbSpecialChar.Text.Length > 1)
{
throw new ArgumentException("Special char should contains one symbol");
}
char special = string.IsNullOrWhiteSpace(tbSpecialChar.Text) ? (char)0 : tbSpecialChar.Text[0];
Encoding textEncoding = cmbTextEncoding.SelectedItem != null ?
(Encoding)((ComboBoxItem)cmbTextEncoding.SelectedItem).Value : null;
bool parallel = cbParallel.Checked;
switch (cmbMethod.SelectedItem.ToString())
{
case "Base32":
method = new Base32(alphabet, special, textEncoding);
break;
case "Base64":
method = new Base64(alphabet, special, textEncoding, parallel);
break;
case "Base128":
method = new Base128(alphabet, special, textEncoding);
break;
case "Base256":
method = new Base256(alphabet, special, textEncoding);
break;
case "Base1024":
method = new Base1024(alphabet, special, textEncoding);
break;
case "Base4096":
method = new Base4096(alphabet, special, textEncoding);
break;
case "ZBase32":
method = new ZBase32(alphabet, special, textEncoding);
break;
case "Base85":
method = new Base85(alphabet, special, cbPrefixPostfix.Checked, textEncoding);
break;
case "Base91":
method = new Base91(alphabet, special, textEncoding);
break;
case "BaseN":
method = new BaseN(alphabet, (uint)nudMaxBitsCount.Value, textEncoding, cbReverseOrder.Checked, parallel);
break;
case "BaseBigN":
method = new BaseBigN(alphabet, (uint)nudMaxBitsCount.Value, textEncoding,
cbReverseOrder.Checked, parallel, cbMaxCompression.Checked);
break;
}
tbBitsPerChars.Text = method.BlockBitsCount + "/" + method.BlockCharsCount;
tbRatio.Text = ((double)method.BlockBitsCount / method.BlockCharsCount).ToString("0.000000");
nudAlphabetLength.Value = method.CharsCount;
return(method);
}