示例#1
0
        public void TransactionDamage()
        {
            var itself = Constants.Itself;

            var tempDatabaseFilename = Path.GetTempFileName();
            var tempTransactionLogFilename = Path.GetTempFileName();

            // Commit
            using (var memoryManager = new UInt64LinksMemoryManager(tempDatabaseFilename))
            using (var links = new UInt64Links(memoryManager, tempTransactionLogFilename))
            {
                using (var transaction = links.BeginTransaction())
                {
                    var l1 = links.CreateAndUpdate(itself, itself);
                    var l2 = links.CreateAndUpdate(itself, itself);

                    Global.Trash = links.Update(l2, l2, l1, l2);

                    links.Delete(l1);

                    transaction.Commit();
                }

                Global.Trash = links.Count();
            }

            Global.Trash = FileHelpers.ReadAll<UInt64Links.Transition>(tempTransactionLogFilename);

            // Damage database

            FileHelpers
                .WriteFirst(tempTransactionLogFilename, new UInt64Links.Transition { TransactionId = 555 });

            // Try load damaged database
            try
            {
                // TODO: Fix
                using (var memoryManager = new UInt64LinksMemoryManager(tempDatabaseFilename))
                using (var links = new UInt64Links(memoryManager, tempTransactionLogFilename))
                {
                    Global.Trash = links.Count();
                }
            }
            catch (NotSupportedException ex)
            {
                Assert.True(ex.Message == "Database is damaged, autorecovery is not supported yet.");
            }

            Global.Trash = FileHelpers
                .ReadAll<UInt64Links.Transition>(tempTransactionLogFilename);

            File.Delete(tempDatabaseFilename);
            File.Delete(tempTransactionLogFilename);
        }
示例#2
0
        public void Bug1Test()
        {
            var tempDatabaseFilename = Path.GetTempFileName();
            var tempTransactionLogFilename = Path.GetTempFileName();

            var itself = Constants.Itself;

            // User Code Error (Autoreverted), some data saved
            try
            {
                ulong l1;
                ulong l2;

                using (var memoryManager = new UInt64LinksMemoryManager(tempDatabaseFilename))
                using (var links = new UInt64Links(memoryManager, tempTransactionLogFilename))
                {
                    l1 = links.CreateAndUpdate(itself, itself);
                    l2 = links.CreateAndUpdate(itself, itself);

                    l2 = links.Update(l2, l2, l1, l2);

                    links.CreateAndUpdate(l2, itself);
                    links.CreateAndUpdate(l2, itself);
                }

                Global.Trash = FileHelpers.ReadAll<UInt64Links.Transition>(tempTransactionLogFilename);

                using (var memoryManager = new UInt64LinksMemoryManager(tempDatabaseFilename))
                using (var links = new UInt64Links(memoryManager, tempTransactionLogFilename))
                {
                    using (var transaction = links.BeginTransaction())
                    {
                        l2 = links.Update(l2, l1);

                        links.Delete(l2);

                        ExceptionThrower();

                        transaction.Commit();
                    }

                    Global.Trash = links.Count();
                }
            }
            catch
            {
                Global.Trash = FileHelpers
                    .ReadAll<UInt64Links.Transition>(tempTransactionLogFilename);
            }

            File.Delete(tempDatabaseFilename);
            File.Delete(tempTransactionLogFilename);
        }
示例#3
0
        public void TransactionCommit()
        {
            var itself = Constants.Itself;

            var tempDatabaseFilename = Path.GetTempFileName();
            var tempTransactionLogFilename = Path.GetTempFileName();

            // Commit
            using (var memoryManager = new UInt64LinksMemoryManager(tempDatabaseFilename))
            using (var links = new UInt64Links(memoryManager, tempTransactionLogFilename))
            {
                using (var transaction = links.BeginTransaction())
                {
                    var l1 = links.CreateAndUpdate(itself, itself);
                    var l2 = links.CreateAndUpdate(itself, itself);

                    Global.Trash = links.Update(l2, l2, l1, l2);

                    links.Delete(l1);

                    transaction.Commit();
                }

                Global.Trash = links.Count();
            }

            Global.Trash = FileHelpers.ReadAll<UInt64Links.Transition>(tempTransactionLogFilename);
        }