public void CanRollbackTransaction()
{
var startRecord = new StartRecord(_logManager, _bufferManager, 6);
var lsn = startRecord.WriteToLog();
_logManager.Flush(lsn);
_recoveryManager = new RecoveryManager(_bufferManager, _logManager, 6);
var block = new Block(RandomFilename, 0);
var buffer = _bufferManager.Pin(block);
_recoveryManager.SetInt(buffer, 0, 123);
Assert.DoesNotThrow(() =>
{
_recoveryManager.Rollback();
_bufferManager.Unpin(buffer);
});
}
public void CanRollback()
{
_recoveryManager = new RecoveryManager(_bufferManager, _logManager, 6);
var block = new Block(RandomFilename, 0);
var buffer = _bufferManager.Pin(block);
_recoveryManager.Rollback();
_bufferManager.Unpin(buffer);
_bufferManager.FlushAll(6);
var page = _fileManager.ResolvePage();
_ = page.Read(new Block(_name, 0));
var enumerator = _logManager.GetEnumerator();
var record = enumerator.Current;
var commitRecord = new RollbackRecord(_logManager, _bufferManager, record);
Assert.AreEqual(LogRecordType.Rollback, commitRecord.Type);
Assert.AreEqual(6, commitRecord.TransactionNumber);
}
public void Rollback()
{
_bufferList.UnpinAll();
_recoveryManager.Rollback();
_concurrencyManager.Release();
}