public void BufferedSourceExtensions_ReadAll()
{
int testSampleSize = 1163;
long skipSize = long.MaxValue - (long)testSampleSize;
// чтение больше буфера
int srcBufSize = testSampleSize / 3;
var src = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
src.TrySkip (skipSize);
var result = BufferedSourceExtensions.ReadAllBytes (src);
for (int i = 0; i < testSampleSize; i++)
{
Assert.AreEqual (FillFunction ((long)(skipSize + i)), result[i]);
}
// чтение меньше буфера
srcBufSize = testSampleSize * 9;
src = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
src.TrySkip (skipSize);
result = BufferedSourceExtensions.ReadAllBytes (src);
for (int i = 0; i < testSampleSize; i++)
{
Assert.AreEqual (FillFunction ((long)(skipSize + i)), result[i]);
}
}
public void TemplateSeparatedBufferedSource_RequestSkipPart()
{
byte templPos = 162;
var separator = new byte[]
{
FillFunction (templPos),
FillFunction (templPos + 1),
FillFunction (templPos + 2),
FillFunction (templPos + 3),
FillFunction (templPos + 4)
};
long skipBeforeLimitingSize = 0xfffffffd;
long secondPartPos = (skipBeforeLimitingSize | 0xffL) + 1L + (long)templPos + separator.Length;
int skipBufferSize = 93;
int srcBufSize = 32768;
// части в середине источника
var subSrc = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
subSrc.TrySkip (skipBeforeLimitingSize);
var src = new TemplateSeparatedBufferedSource (subSrc, separator);
src.EnsureBuffer (skipBufferSize + 3);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + 2), src.Buffer[src.Offset + 2]);
src.SkipBuffer (skipBufferSize);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + 2), src.Buffer[src.Offset + 2]);
Assert.IsTrue (src.TrySkipPart ());
src.EnsureBuffer (3);
Assert.AreEqual (FillFunction (secondPartPos), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (secondPartPos + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (secondPartPos + 2), src.Buffer[src.Offset + 2]);
Assert.AreEqual (256 - separator.Length, src.TrySkip (long.MaxValue));
// части в конце источника
long size = 4611686018427387904L;
subSrc = new BigBufferedSourceMock (size, srcBufSize, FillFunction);
subSrc.TrySkip (size - 256 - 256 - 20); // отступаем так чтобы осталось две части с хвостиком
src = new TemplateSeparatedBufferedSource (subSrc, separator);
Assert.IsTrue (src.TrySkipPart ());
Assert.IsTrue (src.TrySkipPart ());
Assert.IsFalse (src.TrySkipPart ());
// разделитель в конце источника
separator = new byte[]
{
FillFunction (253),
FillFunction (254),
FillFunction (255)
};
subSrc = new BigBufferedSourceMock (768, srcBufSize, FillFunction);
src = new TemplateSeparatedBufferedSource (subSrc, separator);
Assert.IsTrue (src.TrySkipPart ());
Assert.IsTrue (src.TrySkipPart ());
Assert.IsTrue (src.TrySkipPart ());
Assert.IsFalse (src.TrySkipPart ());
}
public void SizeLimitedBufferedSource_RequestSkip()
{
long skipBeforeLimitingSize = int.MaxValue;
int skipBufferSize = 123;
long skipInsideLimitingSize = 562945658454016;
// ограничение больше буфера
int srcBufSize = 32768;
long limitingSize = srcBufSize + 4611686018427387904L;
var subSrc = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
subSrc.TrySkip (skipBeforeLimitingSize);
var src = new SizeLimitedBufferedSource (subSrc, limitingSize);
src.EnsureBuffer (skipBufferSize + 3);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize+1), src.Buffer[src.Offset+1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize+2), src.Buffer[src.Offset+2]);
src.SkipBuffer (skipBufferSize);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + 2), src.Buffer[src.Offset + 2]);
Assert.AreEqual (skipInsideLimitingSize, src.TrySkip (skipInsideLimitingSize));
src.EnsureBuffer (3);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + skipInsideLimitingSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + skipInsideLimitingSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + skipInsideLimitingSize + 2), src.Buffer[src.Offset + 2]);
Assert.AreEqual (limitingSize - skipBufferSize - skipInsideLimitingSize, src.TrySkip (long.MaxValue));
// ограничение меньше буфера
srcBufSize = 32767;
limitingSize = 1293L;
subSrc = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
subSrc.TrySkip (skipBeforeLimitingSize);
src = new SizeLimitedBufferedSource (subSrc, limitingSize);
src.EnsureBuffer (skipBufferSize + 3);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + 2), src.Buffer[src.Offset + 2]);
src.SkipBuffer (skipBufferSize);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + 2), src.Buffer[src.Offset + 2]);
Assert.AreEqual (skipBufferSize, src.TrySkip (skipBufferSize));
src.EnsureBuffer (3);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + skipBufferSize), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + skipBufferSize + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (skipBeforeLimitingSize + skipBufferSize + skipBufferSize + 2), src.Buffer[src.Offset + 2]);
Assert.AreEqual (limitingSize - skipBufferSize - skipBufferSize, src.TrySkip (long.MaxValue));
}
public void BufferedSourceExtensions_Read()
{
int srcBufSize = 32768;
int testSampleSize = 68;
int readBufSize = 1000;
int readBufOffset = 512;
var src = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
src.FillBuffer ();
var skip = srcBufSize - testSampleSize;
src.SkipBuffer (skip);
var buf = new byte[readBufSize];
Assert.AreEqual (testSampleSize, BufferedSourceExtensions.Read (src, buf, readBufOffset, testSampleSize));
for (int i = 0; i < testSampleSize; i++)
{
Assert.AreEqual (FillFunction ((long)(skip + i)), buf[readBufOffset + i]);
}
src.TrySkip (long.MaxValue - (long)srcBufSize - 3);
Assert.AreEqual (3, BufferedSourceExtensions.Read (src, buf, 0, buf.Length));
}
public void BufferedSourceExtensions_IsEmpty()
{
var src = new BigBufferedSourceMock (0, 1, FillFunction);
src.FillBuffer ();
Assert.IsTrue (BufferedSourceExtensions.IsEmpty (src));
src = new BigBufferedSourceMock (1, 1, FillFunction);
src.FillBuffer ();
Assert.IsFalse (BufferedSourceExtensions.IsEmpty (src));
src.SkipBuffer (1);
Assert.IsTrue (BufferedSourceExtensions.IsEmpty (src));
src = new BigBufferedSourceMock (long.MaxValue, 32768, FillFunction);
src.FillBuffer ();
Assert.IsFalse (BufferedSourceExtensions.IsEmpty (src));
src.TrySkip (long.MaxValue - 1);
src.FillBuffer ();
Assert.IsFalse (BufferedSourceExtensions.IsEmpty (src));
src.SkipBuffer (1);
Assert.IsTrue (BufferedSourceExtensions.IsEmpty (src));
}
public void EvaluatorPartitionedBufferedSourceBase_ReadAndSkipPart()
{
long skipBeforeLimitingSize = 0x408c5f081052008cL;
long firstPartPos = 0x408c5f08105200c0L;
long secondPartPos = 0x408c5f08105200ccL;
long thirdPartPos = 0x408c5f0810520100L;
int srcBufSize = 32768;
// части в середине источника
var subSrc = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
subSrc.TrySkip (skipBeforeLimitingSize);
var src = new OneHundredEvaluatorBufferedSource (subSrc);
Assert.AreEqual (0, src.FillBuffer ());
Assert.IsTrue (src.TrySkipPart ());
src.EnsureBuffer (3);
Assert.AreEqual (FillFunction (firstPartPos), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (firstPartPos + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (firstPartPos + 2), src.Buffer[src.Offset + 2]);
Assert.IsTrue (src.TrySkipPart ());
src.EnsureBuffer (3);
Assert.AreEqual (FillFunction (secondPartPos), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (secondPartPos + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (secondPartPos + 2), src.Buffer[src.Offset + 2]);
Assert.IsTrue (src.TrySkipPart ());
src.EnsureBuffer (3);
Assert.AreEqual (FillFunction (thirdPartPos), src.Buffer[src.Offset]);
Assert.AreEqual (FillFunction (thirdPartPos + 1), src.Buffer[src.Offset + 1]);
Assert.AreEqual (FillFunction (thirdPartPos + 2), src.Buffer[src.Offset + 2]);
// части в конце источника
long size = 0x4000000000000000L;
subSrc = new BigBufferedSourceMock (size, srcBufSize, FillFunction);
subSrc.TrySkip (0x3fffffffffffffc0L); // отступаем так чтобы осталось две части с хвостиком
src = new OneHundredEvaluatorBufferedSource (subSrc);
Assert.IsTrue (src.TrySkipPart ());
Assert.IsTrue (src.TrySkipPart ());
Assert.IsFalse (src.TrySkipPart ());
}
public void BufferedSourceExtensions_WriteTo()
{
int testSampleSize = 1163;
long skipSize = long.MaxValue - (long)testSampleSize;
int srcBufSize = testSampleSize / 3;
var src = new BigBufferedSourceMock (long.MaxValue, srcBufSize, FillFunction);
src.TrySkip (skipSize);
byte[] result;
using (var dst = new MemoryStream ())
{
Assert.AreEqual (testSampleSize, BufferedSourceExtensions.WriteTo (src, dst));
result = dst.GetBuffer ();
}
for (int i = 0; i < testSampleSize; i++)
{
Assert.AreEqual (FillFunction ((long)(skipSize + i)), result[i]);
}
}
private static void TransformAllTest(
int inBlockSize,
int outBlockSize,
int inputCacheBlocks,
int dataSize,
int bufSize,
bool canTransformMultipleBlocks,
int transformBufferSize)
{
var src = new BigBufferedSourceMock (dataSize, bufSize, FillFunction);
var mock = new CryptoTransformMock (inBlockSize, outBlockSize, inputCacheBlocks, canTransformMultipleBlocks);
var transform = new CryptoTransformingBufferedSource (src, mock, new byte[transformBufferSize]);
var fullBlocks = dataSize / inBlockSize;
var inReminder = dataSize - fullBlocks * inBlockSize;
var outReminder = Math.Min (inReminder, outBlockSize);
var resultSize = fullBlocks * outBlockSize + outReminder;
// считываем весь результат преобразования
int len = 0;
var result = new byte[resultSize];
int available;
while ((available = transform.FillBuffer ()) > 0)
{
Array.Copy (transform.Buffer, transform.Offset, result, len, available);
len += available;
transform.SkipBuffer (available);
}
Assert.IsTrue (transform.IsExhausted);
Assert.AreEqual (resultSize, len);
// проверяем что результат преобразования совпадает с тестовым массивом
for (var i = 0; i < fullBlocks; i++)
{
for (int j = 0; j < outBlockSize; j++)
{
var inIndex = i * inBlockSize + (j % inBlockSize);
var outIndex = i * outBlockSize + j;
Assert.AreEqual (FillFunction (inIndex), (byte)~result[outIndex]);
}
}
for (int j = 0; j < outReminder; j++)
{
var inIndex = fullBlocks * inBlockSize + (j % inBlockSize);
var outIndex = fullBlocks * outBlockSize + j;
Assert.AreEqual (FillFunction (inIndex), (byte)~result[outIndex]);
}
}
private static void SkipTransformChunkTest(
int inBlockSize,
int outBlockSize,
int inputCacheBlocks,
long dataSize,
int bufSize,
bool canTransformMultipleBlocks,
int transformBufferSize,
long totalSkip,
int bufferSkip)
{
var src = new BigBufferedSourceMock (dataSize, bufSize, FillFunction);
var mock = new CryptoTransformMock (inBlockSize, outBlockSize, inputCacheBlocks, canTransformMultipleBlocks);
var transform = new CryptoTransformingBufferedSource (src, mock, new byte[transformBufferSize]);
Assert.AreEqual (totalSkip, transform.TrySkip (totalSkip));
transform.EnsureBuffer (3);
Assert.AreEqual ((byte)~FillFunction (MapTransformIndexBackToOriginal (totalSkip, mock)), transform.Buffer[transform.Offset]);
Assert.AreEqual ((byte)~FillFunction (MapTransformIndexBackToOriginal (totalSkip + 1, mock)), transform.Buffer[transform.Offset + 1]);
Assert.AreEqual ((byte)~FillFunction (MapTransformIndexBackToOriginal (totalSkip + 2, mock)), transform.Buffer[transform.Offset + 2]);
transform.EnsureBuffer (bufferSkip);
transform.SkipBuffer (bufferSkip);
transform.EnsureBuffer (3);
Assert.AreEqual ((byte)~FillFunction (MapTransformIndexBackToOriginal (totalSkip + bufferSkip, mock)), transform.Buffer[transform.Offset]);
Assert.AreEqual ((byte)~FillFunction (MapTransformIndexBackToOriginal (totalSkip + bufferSkip + 1, mock)), transform.Buffer[transform.Offset + 1]);
Assert.AreEqual ((byte)~FillFunction (MapTransformIndexBackToOriginal (totalSkip + bufferSkip + 2, mock)), transform.Buffer[transform.Offset + 2]);
}
