public void ReproduceEmptyTempvalue()
{
// s. NstmList.RemoveAt(): After commit the value of some objects is null because the logentry tempvalue seems to not have been set despite ReadWrite access
var o = StmTransaction.CreateObject <MyInt>();
var i = new MyInt {
Value = 1
};
o.Write(i);
using (var tx = StmTransaction.BeginTransaction(
StmTransactionScopeOption.RequiresNested,
StmTransactionIsolationLevel.ReadCommitted,
StmTransactionCloneMode.CloneOnWrite))
{
var j = o.Read(StmReadOption.PassingReadOnly);
Assert.AreEqual(i, j);
j = o.Read(StmReadOption.ReadWrite);
Assert.AreNotEqual(i, j);
j.Value = 2;
tx.Commit();
}
Assert.AreEqual(2, o.Read().Value);
}
public void TestRequiredOrNested()
{
bool newTxCreated;
// inner tx compatible with outer; no new tx created
using (var tx0 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite, out newTxCreated))
{
Assert.IsTrue(newTxCreated);
using (var tx1 = StmTransaction.BeginTransaction(StmTransactionScopeOption.RequiredOrNested, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite, out newTxCreated))
{
Assert.IsFalse(newTxCreated);
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
Assert.IsFalse(tx1.IsNested);
Assert.AreEqual(tx0, tx1);
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
}
// inner tx not compatible with outer; create new nested tx
using (var tx0 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite))
{
using (var tx1 = StmTransaction.BeginTransaction(StmTransactionScopeOption.RequiredOrNested, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnRead, out newTxCreated))
{
Assert.IsTrue(newTxCreated);
Assert.AreEqual(2, StmTransaction.ActiveTransactionCount);
Assert.IsTrue(tx1.IsNested);
Assert.AreNotEqual(tx0, tx1);
}
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
}
}
public void TestSingleTx()
{
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
using (var tx0 = StmTransaction.BeginTransaction())
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
}
public void TestReadMultiple()
{
var o = StmTransaction.CreateObject(1);
using (var tx = StmTransaction.BeginTransaction())
{
Assert.AreEqual(1, o.Read(StmReadOption.ReadOnly));
Assert.AreEqual(1, o.Read(StmReadOption.ReadOnly));
}
}
public void TestCloneScalarValues()
{
var oString = StmTransaction.CreateObject("hello");
var oDouble = StmTransaction.CreateObject(3.14);
var oDateTime = StmTransaction.CreateObject(new DateTime(2007, 6, 27));
using (var tx = StmTransaction.BeginTransaction())
{
Assert.AreEqual("hello", oString.Read(StmReadOption.ReadWrite));
Assert.AreEqual(3.14, oDouble.Read(StmReadOption.ReadWrite));
Assert.AreEqual(new DateTime(2007, 6, 27), oDateTime.Read(StmReadOption.ReadWrite));
}
}
public void TestCloneCustomValueType()
{
var vt = new MyValueType {
I = 1, S = "hello"
};
var oVt = StmTransaction.CreateObject(vt);
using (var tx = StmTransaction.BeginTransaction())
{
var vt2 = oVt.Read(StmReadOption.ReadWrite);
Assert.AreEqual(vt.I, vt2.I);
Assert.AreEqual(vt.S, vt2.S);
}
}
public void TestRequiresNestedTx()
{
// create nested tx
using (var tx0 = StmTransaction.BeginTransaction())
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
using (var tx1 = StmTransaction.BeginTransaction())
{
Assert.AreEqual(2, StmTransaction.ActiveTransactionCount);
Assert.IsTrue(tx1.IsNested);
}
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
}
public void TestCloseTxInWrongOrder()
{
var txA = StmTransaction.BeginTransaction();
ITransaction txB = StmTransaction.BeginTransaction(StmTransactionScopeOption.RequiresNew, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite);
try
{
txA.Commit(); // this is wrong; the tx created first needs to be finished last (FILO)
}
catch (InvalidOperationException ex)
{
Assert.IsTrue(ex.Message.IndexOf("overlapping") >= 0);
txB.Rollback();
txA.Rollback();
}
}
public void TestRequiresNewTx()
{
// create new, independent tx while another is still active
using (var tx0 = StmTransaction.BeginTransaction())
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
bool newTxCreated;
using (var tx1 = StmTransaction.BeginTransaction(StmTransactionScopeOption.RequiresNew, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite, out newTxCreated))
{
Assert.IsTrue(newTxCreated);
Assert.AreEqual(2, StmTransaction.ActiveTransactionCount);
Assert.IsFalse(tx1.IsNested);
Assert.AreNotEqual(tx0, tx1);
}
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
}
public void TestCloneClass()
{
var c = new MyCloneableClass {
I = 1, S = "hello"
};
var oC = StmTransaction.CreateObject(c);
using (var tx = StmTransaction.BeginTransaction())
{
var c2 = oC.Read(StmReadOption.ReadWrite);
Assert.AreNotEqual(c, c2);
Assert.AreEqual(c.I, c2.I);
Assert.AreEqual(c.S, c2.S);
}
using (var tx = StmTransaction.BeginTransaction())
{
var c2 = oC.Read(); // the default read option is "ReadWrite"
Assert.AreNotEqual(c, c2);
}
}
public void TestRequiredTx()
{
using (ITransaction tx0 = StmTransaction.BeginTransaction())
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
bool newTxCreated;
using (ITransaction tx1 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite, out newTxCreated))
{
Assert.IsFalse(newTxCreated);
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
Assert.IsFalse(tx1.IsNested);
Assert.AreEqual(tx0, tx1);
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
//-- tx required: no tx active & current tx has compatible settings for second tx
using (var tx0 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnRead))
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
using (var tx1 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite))
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
}
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
//-- tx required: no tx active & current tx does not match requirements
using (var tx0 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnWrite))
{
Assert.AreEqual(1, StmTransaction.ActiveTransactionCount);
using (var tx1 = StmTransaction.BeginTransaction(StmTransactionScopeOption.Required, StmTransactionIsolationLevel.Serializable, StmTransactionCloneMode.CloneOnRead))
{
Assert.AreEqual(2, StmTransaction.ActiveTransactionCount);
}
}
Assert.AreEqual(0, StmTransaction.ActiveTransactionCount);
}
public void TestVersion()
{
var o = StmTransaction.CreateObject <int>();
Assert.AreEqual(0, o.Version);
o.Write(1);
Assert.AreEqual(1, o.Version);
using (var tx = StmTransaction.BeginTransaction())
{
o.Write(2);
Assert.AreEqual(1, o.Version);
tx.Commit();
}
Assert.AreEqual(2, o.Version);
using (var tx = StmTransaction.BeginTransaction())
{
o.Write(3);
Assert.AreEqual(2, o.Version);
}
Assert.AreEqual(2, o.Version);
}