Add transaction scope and distributed transaction tests

Src/NHibernate.Envers.Tests/Integration/Basic/TransactionScopeWithUseConnectionOnPrepare.cs

@@ -0,0 +1,126 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Transactions;
+using NHibernate.Envers.Configuration;
+using NHibernate.Envers.Tests.Entities;
+using NUnit.Framework;
+
+namespace NHibernate.Envers.Tests.Integration.Basic
+{
+	public class TransactionScopeWithUseConnectionOnPrepare : TestBase
+	{
+		public TransactionScopeWithUseConnectionOnPrepare(AuditStrategyForTest strategyType) : base(strategyType)
+		{
+		}
+
+#if NETCOREAPP2_0
+		[Ignore("System.Transactions is not supported in Core. See https://github.com/dotnet/corefx/issues/19894")]
+#endif
+		[Test]
+		public void ShouldNotThrowWhenDistributedTransaction()
+		{
+			var entity = new StrTestEntity { Str = "data" };
+
+			Assert.DoesNotThrow(() =>
+			{
+				using (var distrTx = new TransactionScope())
+				{
+					// Simulation of durable resource enlistment
+					using (var newSession = Session.SessionFactory.OpenSession())
+					{
+						newSession.FlushMode = FlushMode.Manual;
+						newSession.Query<StrTestEntity>().FirstOrDefault();
+					}
+
+					using (var newSession2 = Session.SessionFactory.OpenSession())
+					{
+						newSession2.FlushMode = FlushMode.Manual;
+						newSession2.Save(entity);
+						newSession2.Flush();
+					}
+
+					distrTx.Complete();
+				}
+			});
+		}
+
+#if NETCOREAPP2_0
+		[Ignore("System.Transactions is not supported in Core. See https://github.com/dotnet/corefx/issues/19894")]
+#endif
+		[Test]
+		public void ShouldNotThrowWhenDistributedTransactionWithAutoFlushMode()
+		{
+			var entity = new StrTestEntity { Str = "data" };
+
+			Assert.DoesNotThrow(() =>
+			{
+				using (var distrTx = new TransactionScope())
+				{
+					using (var newSession = Session.SessionFactory.OpenSession())
+					{
+						newSession.FlushMode = FlushMode.Auto;
+						newSession.Query<StrTestEntity>().FirstOrDefault();
+					}
+
+					using (var newSession2 = Session.SessionFactory.OpenSession())
+					{
+						newSession2.FlushMode = FlushMode.Auto;
+						newSession2.Save(entity);
+						newSession2.Flush();
+					}
+
+					distrTx.Complete();
+				}
+			});
+		}
+
+#if NETCOREAPP2_0
+		[Ignore("System.Transactions is not supported in Core. See https://github.com/dotnet/corefx/issues/19894")]
+#endif
+		[Test]
+		public void ShouldNotThrowWhenDistributedTransactionWithNhTransaction()
+		{
+			var entity = new StrTestEntity { Str = "data" };
+
+			Assert.DoesNotThrow(() =>
+			{
+				using (var distrTx = new TransactionScope())
+				{
+					using (var newSession = Session.SessionFactory.OpenSession())
+					{
+						newSession.Query<StrTestEntity>().FirstOrDefault();
+					}
+
+					using (var newSession2 = Session.SessionFactory.OpenSession())
+					{
+						using (var nhTx = newSession2.BeginTransaction())
+						{
+							newSession2.Save(entity);
+							newSession2.Flush();
+
+							// There is no problem in this case, 
+							// because BeforeTransactionCompletion is called right after this line (before 1st commit phase of distributed transaction)
+							nhTx.Commit();
+						}
+					}
+
+					distrTx.Complete();
+				}
+			});
+		}
+
+		protected override void Initialize()
+		{
+		}
+
+		protected override void AddToConfiguration(Cfg.Configuration configuration)
+		{
+			ConfigurationKey.StoreDataAtDelete.SetUserValue(configuration, true);
+		}
+
+		protected override IEnumerable<string> Mappings
+		{
+			get { return new[] {"Entities.Mapping.hbm.xml", "Integration.Collection.NoRevision.Mapping.hbm.xml"}; }
+		}
+	}
+}

Src/NHibernate.Envers.Tests/Integration/Basic/TransactionScopeWithoutUseConnectionOnPrepare.cs

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+using NHibernate.Envers.Tests.Entities;
+using NUnit.Framework;
+using System.Transactions;
+
+namespace NHibernate.Envers.Tests.Integration.Basic
+{
+	public class TransactionScopeWithoutUseConnectionOnPrepare : TransactionScopeWithUseConnectionOnPrepare
+	{
+		public TransactionScopeWithoutUseConnectionOnPrepare(AuditStrategyForTest strategyType) : base(strategyType)
+		{
+		}
+
+#if NETCOREAPP2_0
+		[Ignore("System.Transactions is not supported in Core. See https://github.com/dotnet/corefx/issues/19894")]
+#endif
+		[Test]
+		public void ShouldNotThrow()
+		{
+			var entity = new StrTestEntity { Str = "data" };
+
+			Assert.DoesNotThrow(() =>
+			{
+				using (var distrTx = new TransactionScope())
+				{
+					using (var newSession = Session.SessionFactory.OpenSession())
+					{
+						newSession.FlushMode = FlushMode.Manual;
+						newSession.Save(entity);
+						newSession.Flush();
+					}
+
+					distrTx.Complete();
+				}
+			});
+		}
+
+		protected override void AddToConfiguration(Cfg.Configuration configuration)
+		{ 
+			// It is recommended since NH 5
+			configuration.SetProperty(NHibernate.Cfg.Environment.UseConnectionOnSystemTransactionPrepare, "false");
+
+			base.AddToConfiguration(configuration);
+		}
+	}
+}