public void CanSetBlob()
{
var page = _fileManager.ResolvePage();
var block = new Block(RandomFilename, 0);
page.Read(block);
page.SetBlob(0, new byte[] { 1, 2, 3 });
page.Write(block);
_recoveryManager = new RecoveryManager(_bufferManager, _logManager, 6);
var buffer = _bufferManager.Pin(block);
var lsn = _recoveryManager.SetBlob(buffer, 0, new byte[] { 3, 2, 1 });
_logManager.Flush(lsn);
_bufferManager.Unpin(buffer);
_bufferManager.FlushAll(6);
var enumerator = _logManager.GetEnumerator();
var record = enumerator.Current;
var setBoolRecord = new SetBlobRecord(_logManager, _bufferManager, record);
Assert.AreEqual(LogRecordType.SetBlob, setBoolRecord.Type);
Assert.AreEqual(0, setBoolRecord.Block.Id);
Assert.AreEqual(0, setBoolRecord.Offset);
Assert.AreEqual(new byte[] { 1, 2, 3 }, setBoolRecord.Value);
Assert.AreEqual(6, setBoolRecord.TransactionNumber);
}
public bool SetBlob(Block block, int offset, byte[] value)
{
_concurrencyManager.ExclusiveLock(block);
var buffer = _bufferList.GetBuffer(block);
int lsn = _recoveryManager.SetBlob(buffer, offset, value);
return(buffer.SetBlob(offset, value, _transactionNumber, lsn));
}
public void CanSetTempBlob()
{
var page = _fileManager.ResolvePage();
var block = new Block("temp" + RandomFilename, 0);
page.Read(block);
page.SetBlob(0, new byte[] { 1, 2, 3 });
page.Write(block);
_recoveryManager = new RecoveryManager(_bufferManager, _logManager, 6);
var buffer = _bufferManager.Pin(block);
var lsn = _recoveryManager.SetBlob(buffer, 0, new byte[] { 3, 2, 1 });
Assert.AreEqual(-1, lsn);
}