public void TestAmbientKtmTransaction()
{
if (!bfs.Repository.Util.SystemInfo.IsAnyWindows || !EnvironmentSupportsTransactions)
{
Assert.Inconclusive("Cannot test in this environment");
return;
}
using (var scope = CreateStandaloneKtmTransactionScope(true))
{
// thus allowing to use ambient storage transaction
Repository.Settings.StorageTransactionSettings = StorageTransactionSettings.DisallowJoiningAmbientManaged;
KtmTransaction ambientTransaction = (KtmTransaction)AmbientTransaction;
// eager scope
using (StorageTransactionScope target = StorageTransactionScope.Create(Repository))
{
Assert.IsFalse(target.IsNullScope, "Eager scope must not produce null scope");
Assert.IsFalse(target.IsTransactionOwner, "There's external transaction to be used");
Assert.IsFalse(target.HasChangedContext);
Assert.IsFalse(target.NoTransaction);
Assert.IsFalse(target.ToBeDisposed);
Assert.AreSame(ambientTransaction, AmbientTransaction);
Assert.AreSame(ambientTransaction, target.UnderlyingTransaction);
Assert.AreSame(ambientTransaction, target.PreviousTransaction);
}
Assert.IsNotNull(AmbientTransaction);
Assert.AreSame(ambientTransaction, AmbientTransaction);
// lazy scope
using (StorageTransactionScope target = StorageTransactionScope.CreateLazy(Repository, null))
{
Assert.IsFalse(target.IsNullScope, "Because the \"always start new\" option is OFF");
Assert.IsFalse(target.IsTransactionOwner, "Lazy scope must never be transaction owner");
Assert.IsFalse(target.HasChangedContext, "Lazy scope can only change context to NULL and only when ambient transaction is present but its usage prohibited");
Assert.IsFalse(target.NoTransaction, "Lazy scope can result in no ambient transaction when ambient transaction is present but its usage prohibited or there's "
+ "no ambient transaction at all");
Assert.IsFalse(target.ToBeDisposed, "Lazy scope must not own or dispose underlying transaction");
Assert.AreSame(ambientTransaction, AmbientTransaction);
Assert.AreSame(ambientTransaction, target.UnderlyingTransaction);
Assert.AreSame(ambientTransaction, target.PreviousTransaction);
}
Assert.IsNotNull(AmbientTransaction);
Assert.AreSame(ambientTransaction, AmbientTransaction);
}
Assert.IsNull(AmbientTransaction);
}
public void TestEagerWithAmbientKtmTransactionProhibited()
{
if (!bfs.Repository.Util.SystemInfo.IsAnyWindows || !EnvironmentSupportsTransactions)
{
Assert.Inconclusive("Cannot test in this environment");
return;
}
Assume.That(AmbientTransaction == null, "Leftovers are not expected here");
// thus not allowing to use ambient storage transaction
Repository.Settings.StorageTransactionSettings = StorageTransactionSettings.DisallowJoiningAmbientManaged | StorageTransactionSettings.AlwaysStartNew;
using (var scope_ = CreateStandaloneKtmTransactionScope(true))
{
KtmTransaction ambientTransaction = (KtmTransaction)AmbientTransaction;
// eager scope
using (StorageTransactionScope target = StorageTransactionScope.Create(Repository))
{
Assert.IsFalse(target.IsNullScope, "Eager scope must not produce null scope");
Assert.IsTrue(target.IsTransactionOwner, "The use of external transaction is prohibited by Repository.Settings.StorageTransactionSettings");
Assert.IsTrue(target.HasChangedContext);
Assert.IsFalse(target.NoTransaction);
Assert.IsTrue(target.ToBeDisposed);
Assert.AreNotSame(ambientTransaction, AmbientTransaction);
Assert.AreNotSame(ambientTransaction, target.UnderlyingTransaction);
Assert.AreSame(ambientTransaction, target.PreviousTransaction);
}
Assert.IsNotNull(AmbientTransaction);
Assert.AreSame(ambientTransaction, AmbientTransaction);
}
Assert.IsNull(AmbientTransaction);
}