public void CascadeUpdateTest()
{
throw new StackOverflowException();
var tempDatabaseFilename = Path.GetTempFileName();
var tempTransactionLogFilename = Path.GetTempFileName();
const ulong itself = Links.Itself;
using (var links = new Links(tempDatabaseFilename,
tempTransactionLogFilename, 1024 * 1024))
{
var l1 = links.Create(itself, itself);
var l2 = links.Create(itself, itself);
l2 = links.Update(l2, l2, l1, l2);
links.Create(l2, itself);
links.Create(l2, itself);
l2 = links.Update(l2, l1);
links.Delete(l2);
Global.Trash = links.Total;
}
Global.Trash = FileHelpers
.ReadAll<Links.Transition>(tempTransactionLogFilename);
File.Delete(tempDatabaseFilename);
File.Delete(tempTransactionLogFilename);
}
public void TransactionsTest()
{
var tempDatabaseFilename = Path.GetTempFileName();
var tempTransactionLogFilename = Path.GetTempFileName();
const ulong itself = Links.Itself;
// Auto Reverted (Because no commit at transaction)
using (var links = new Links(tempDatabaseFilename,
tempTransactionLogFilename, 1024 * 1024))
{
using (var transaction = links.BeginTransaction())
{
var l1 = links.Create(itself, itself);
var l2 = links.Create(itself, itself);
Global.Trash = links.Update(l2, l2, l1, l2);
links.Delete(l1);
Global.Trash = transaction;
}
Global.Trash = links.Total;
}
Global.Trash = FileHelpers
.ReadAll<Links.Transition>(tempTransactionLogFilename);
// User Code Error (Autoreverted)
try
{
using (var links = new Links(tempDatabaseFilename,
tempTransactionLogFilename, 1024 * 1024))
{
using (var transaction = links.BeginTransaction())
{
var l1 = links.Create(itself, itself);
var l2 = links.Create(itself, itself);
l2 = links.Update(l2, l2, l1, l2);
links.Create(l2, itself);
links.Create(l2, itself);
ExceptionThrower();
l2 = links.Update(l2, l1); // TODO: Fix CascadeUpdateTest and move ExceptionThrower() before transaction.Commit()
links.Delete(l2);
transaction.Commit();
}
Global.Trash = links.Total;
}
}
catch
{
Global.Trash = FileHelpers
.ReadAll<Links.Transition>(tempTransactionLogFilename);
}
// Commit
using (var links = new Links(tempDatabaseFilename,
tempTransactionLogFilename, 1024 * 1024))
{
using (var transaction = links.BeginTransaction())
{
var l1 = links.Create(itself, itself);
var l2 = links.Create(itself, itself);
Global.Trash = links.Update(l2, l2, l1, l2);
links.Delete(l1);
transaction.Commit();
}
Global.Trash = links.Total;
}
Global.Trash = FileHelpers
.ReadAll<Links.Transition>(tempTransactionLogFilename);
// Damage database
FileHelpers
.WriteFirst(tempTransactionLogFilename, new Links.Transition { TransactionId = 555 });
// Try load damaged database
try
{
// TODO: Fix
using (var links = new Links(tempDatabaseFilename,
tempTransactionLogFilename, 1024 * 1024))
{
Global.Trash = links.Total;
}
}
catch (NotSupportedException ex)
{
Assert.IsTrue(ex.Message == "Database is damaged, autorecovery is not supported yet.");
}
Global.Trash = FileHelpers
.ReadAll<Links.Transition>(tempTransactionLogFilename);
File.Delete(tempDatabaseFilename);
File.Delete(tempTransactionLogFilename);
}
public void BasicTransactionLogTest()
{
var tempDatabaseFilename = Path.GetTempFileName();
var tempTransactionLogFilename = Path.GetTempFileName();
const ulong itself = Links.Itself;
using (var links = new Links(tempDatabaseFilename, tempTransactionLogFilename, 1024 * 1024))
{
var l1 = links.Create(itself, itself);
var l2 = links.Create(itself, itself);
Global.Trash = links.Update(l2, l2, l1, l2);
links.Delete(l1);
}
Global.Trash = FileHelpers
.ReadAll<Links.Transition>(tempTransactionLogFilename);
File.Delete(tempDatabaseFilename);
File.Delete(tempTransactionLogFilename);
}
