public void SparseMemoryBufferClear()
{
SparseMemoryBuffer memoryBuffer = new SparseMemoryBuffer(10);
byte[] buffer = new byte[20];
memoryBuffer.Write(0, buffer, 0, 20);
Assert.Equal(2, memoryBuffer.AllocatedChunks.Count());
memoryBuffer.Clear(0, 20);
Assert.Equal(0, memoryBuffer.AllocatedChunks.Count());
memoryBuffer.Write(0, buffer, 0, 15);
Assert.Equal(2, memoryBuffer.AllocatedChunks.Count());
memoryBuffer.Clear(0, 15);
Assert.Equal(1, memoryBuffer.AllocatedChunks.Count());
}
protected override void Read(byte[] buffer, int offset, out int length)
{
base.Read(buffer, offset, out length);
uint dataLength = Utilities.ToUInt32LittleEndian(buffer, offset + 0x10);
ushort dataOffset = Utilities.ToUInt16LittleEndian(buffer, offset + 0x14);
_indexedFlag = buffer[offset + 0x16];
if (dataOffset + dataLength > length)
{
throw new IOException("Corrupt attribute, data outside of attribute");
}
_memoryBuffer = new SparseMemoryBuffer(1024);
_memoryBuffer.Write(0, buffer, offset + dataOffset, (int)dataLength);
}
public void TargetPath_Works()
{
var content = Encoding.UTF8.GetBytes("/var/lib/discutils.so");
var buffer = new SparseMemoryBuffer(0x100);
buffer.Write(0, content, 0, content.Length);
var symlinkMock = new Mock <Symlink>(MockBehavior.Strict, new Context(), new CatalogNodeId(0), new CatalogFileInfo());
symlinkMock.Setup(s => s.FileContent).Returns(buffer);
var symlink = symlinkMock.Object;
Assert.Equal(@"\var\lib\discutils.so", symlink.TargetPath);
// Calling .TargetPath twice will excercise the caching code path.
Assert.Equal(@"\var\lib\discutils.so", symlink.TargetPath);
}
protected override void Read(byte[] buffer, int offset, out int length)
{
base.Read(buffer, offset, out length);
uint dataLength = Utilities.ToUInt32LittleEndian(buffer, offset + 0x10);
ushort dataOffset = Utilities.ToUInt16LittleEndian(buffer, offset + 0x14);
_indexedFlag = buffer[offset + 0x16];
if (dataOffset + dataLength > length)
{
throw new IOException("Corrupt attribute, data outside of attribute");
}
_memoryBuffer = new SparseMemoryBuffer(1024);
_memoryBuffer.Write(0, buffer, offset + dataOffset, (int)dataLength);
}
