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AggressiveReleaseTest.cs
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AggressiveReleaseTest.cs
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using System;
using System.Collections;
using System.Data;
using NHibernate.Cfg;
using NHibernate.Util;
using NUnit.Framework;
using Environment=NHibernate.Cfg.Environment;
namespace NHibernate.Test.ConnectionTest
{
[TestFixture]
public class AggressiveReleaseTest : ConnectionManagementTestCase
{
protected override void Configure(Configuration cfg)
{
base.Configure(cfg);
cfg.SetProperty(Environment.ReleaseConnections, "after_transaction");
//cfg.SetProperty(Environment.ConnectionProvider, typeof(DummyConnectionProvider).AssemblyQualifiedName);
//cfg.SetProperty(Environment.GenerateStatistics, "true");
cfg.SetProperty(Environment.BatchSize, "0");
}
protected override ISession GetSessionUnderTest()
{
return OpenSession();
}
protected void Reconnect(ISession session)
{
session.Reconnect();
}
protected override void Prepare()
{
//DummyTransactionManager.INSTANCE.Begin();
}
protected override void Done()
{
//DummyTransactionManager.INSTANCE.Commit();
}
// Some additional tests specifically for the aggressive-Release functionality...
[Test]
public void SerializationOnAfterStatementAggressiveRelease()
{
Prepare();
ISession s = GetSessionUnderTest();
Silly silly = new Silly("silly");
s.Save(silly);
// this should cause the CM to obtain a connection, and then Release it
s.Flush();
// We should be able to serialize the session at this point...
SerializationHelper.Serialize(s);
s.Delete(silly);
s.Flush();
Release(s);
Done();
}
[Test]
public void SerializationFailsOnAfterStatementAggressiveReleaseWithOpenResources()
{
Prepare();
ISession s = GetSessionUnderTest();
Silly silly = new Silly("silly");
s.Save(silly);
// this should cause the CM to obtain a connection, and then Release it
s.Flush();
// both scroll() and iterate() cause the batcher to hold on
// to resources, which should make aggresive-Release not Release
// the connection (and thus cause serialization to fail)
IEnumerable en = s.CreateQuery("from Silly").Enumerable();
try
{
SerializationHelper.Serialize(s);
Assert.Fail(
"Serialization allowed on connected session; or aggressive Release released connection with open resources");
}
catch (InvalidOperationException)
{
// expected behavior
}
// Closing the ScrollableResults does currently force the batcher to
// aggressively Release the connection
NHibernateUtil.Close(en);
SerializationHelper.Serialize(s);
s.Delete(silly);
s.Flush();
Release(s);
Done();
}
[Test]
public void QueryIteration()
{
Prepare();
ISession s = GetSessionUnderTest();
Silly silly = new Silly("silly");
s.Save(silly);
s.Flush();
IEnumerable en = s.CreateQuery("from Silly").Enumerable();
IEnumerator itr = en.GetEnumerator();
Assert.IsTrue(itr.MoveNext());
Silly silly2 = (Silly) itr.Current;
Assert.AreEqual(silly, silly2);
NHibernateUtil.Close(itr);
itr = s.CreateQuery("from Silly").Enumerable().GetEnumerator();
IEnumerator itr2 = s.CreateQuery("from Silly where name = 'silly'").Enumerable().GetEnumerator();
Assert.IsTrue(itr.MoveNext());
Assert.AreEqual(silly, itr.Current);
Assert.IsTrue(itr2.MoveNext());
Assert.AreEqual(silly, itr2.Current);
NHibernateUtil.Close(itr);
NHibernateUtil.Close(itr2);
s.Delete(silly);
s.Flush();
Release(s);
Done();
}
//[Test]
//public void QueryScrolling()
//{
// Prepare();
// ISession s = GetSessionUnderTest();
// Silly silly = new Silly("silly");
// s.Save(silly);
// s.Flush();
// ScrollableResults sr = s.CreateQuery("from Silly").scroll();
// Assert.IsTrue(sr.next());
// Silly silly2 = (Silly) sr.get(0);
// Assert.AreEqual(silly, silly2);
// sr.Close();
// sr = s.CreateQuery("from Silly").Scroll();
// ScrollableResults sr2 = s.CreateQuery("from Silly where name = 'silly'").Scroll();
// Assert.IsTrue(sr.next());
// Assert.AreEqual(silly, sr.get(0));
// Assert.IsTrue(sr2.next());
// Assert.AreEqual(silly, sr2.get(0));
// sr.Close();
// sr2.Close();
// s.Delete(silly);
// s.Flush();
// Release(s);
// Done();
//}
[Test]
public void SuppliedConnection()
{
Prepare();
IDbConnection originalConnection = sessions.ConnectionProvider.GetConnection();
ISession session = sessions.OpenSession(originalConnection);
Silly silly = new Silly("silly");
session.Save(silly);
// this will cause the connection manager to cycle through the aggressive Release logic;
// it should not Release the connection since we explicitly suplied it ourselves.
session.Flush();
Assert.IsTrue(originalConnection == session.Connection, "Different connections");
session.Delete(silly);
session.Flush();
Release(session);
originalConnection.Close();
Done();
}
// TODO
//[Test]
//public void BorrowedConnections()
//{
// Prepare();
// ISession s = GetSessionUnderTest();
// IDbConnection conn = s.Connection;
// Assert.IsTrue(((SessionImpl) s).ConnectionManager.HasBorrowedConnection);
// conn.Close();
// Assert.IsFalse(((SessionImpl) s).ConnectionManager.HasBorrowedConnection);
// Release(s);
// Done();
//}
[Test]
public void ConnectionMaintanenceDuringFlush()
{
Prepare();
ISession s = GetSessionUnderTest();
s.BeginTransaction();
IList entities = new ArrayList();
for (int i = 0; i < 10; i++)
{
Other other = new Other("other-" + i);
Silly silly = new Silly("silly-" + i, other);
entities.Add(silly);
s.Save(silly);
}
s.Flush();
foreach (Silly silly in entities)
{
silly.Name = "new-" + silly.Name;
silly.Other.Name = "new-" + silly.Other.Name;
}
// long initialCount = sessions.Statistics.getConnectCount();
s.Flush();
// Assert.AreEqual(initialCount + 1, sessions.Statistics.getConnectCount(), "connection not maintained through Flush");
s.Delete("from Silly");
s.Delete("from Other");
s.Transaction.Commit();
Release(s);
Done();
}
}
}