Test case for NH2651 taken from Jira. This already works.

Author: oskarb

src/NHibernate.Test/NHSpecificTest/NH2651/Fixture.cs

@@ -0,0 +1,64 @@
+using NHibernate.Cfg;
+using NHibernate.Criterion;
+using NUnit.Framework;
+
+namespace NHibernate.Test.NHSpecificTest.NH2651
+{
+	[TestFixture]
+	public class Fixture : BugTestCase
+	{
+		protected override void OnSetUp()
+		{
+			base.OnSetUp();
+			using (ISession session = this.OpenSession())
+			using (ITransaction transaction = session.BeginTransaction())
+			{
+				var entity = new Model { Id = 1, SampleData = 1 };
+				session.Save(entity);
+
+				var entity2 = new Model { Id = 2, SampleData = 2 };
+				session.Save(entity2);
+
+				transaction.Commit();
+			}
+		}
+
+		protected override void OnTearDown()
+		{
+			base.OnTearDown();
+			using (ISession session = this.OpenSession())
+			using (ITransaction transaction = session.BeginTransaction())
+			{
+				session.Delete("from System.Object");
+				transaction.Commit();
+			}
+		}
+
+		[Test]
+		public void TestConditionalProjectionWithConstantAndLikeExpression()
+		{
+			using (ISession session = this.OpenSession())
+			{
+				var projection = (Projections.Conditional(Restrictions.Eq("SampleData", 1),
+														  Projections.Constant("Foo"),
+														  Projections.Constant("Bar")));
+
+				var likeExpression = new NHibernate.Criterion.LikeExpression(projection, "B", MatchMode.Start);
+				var criteria1 = session.CreateCriteria<Model>()
+					.Add(Restrictions.Eq("Id", 1))
+					.Add(likeExpression);
+
+				var result1 = criteria1.UniqueResult<Model>();
+
+				var criteria2 = session.CreateCriteria<Model>()
+					.Add(Restrictions.Eq("Id", 2))
+					.Add(likeExpression);
+
+				var result2 = criteria2.UniqueResult<Model>();
+
+				Assert.IsNull(result1);
+				Assert.IsNotNull(result2);
+			}
+		}
+	}
+}

src/NHibernate.Test/NHSpecificTest/NH2651/Mappings.hbm.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="NHibernate.Test"
+                   namespace="NHibernate.Test.NHSpecificTest.NH2651">
+  <class name="Model">
+    <id name="Id">
+      <generator class="assigned" />
+    </id>
+    <property name="SampleData" />
+  </class>
+</hibernate-mapping>

src/NHibernate.Test/NHSpecificTest/NH2651/Model.cs

@@ -0,0 +1,8 @@
+namespace NHibernate.Test.NHSpecificTest.NH2651
+{
+	public class Model
+	{
+		public virtual int Id { get; set; }
+		public virtual int SampleData { get; set; }
+	}
+}

src/NHibernate.Test/NHibernate.Test.csproj

@@ -662,6 +662,8 @@
     <Compile Include="NHSpecificTest\BagWithLazyExtraAndFilter\Domain.cs" />
     <Compile Include="NHSpecificTest\BagWithLazyExtraAndFilter\Fixture.cs" />
     <Compile Include="Component\Basic\ComponentWithUniqueConstraintTests.cs" />
+    <Compile Include="NHSpecificTest\NH2651\Fixture.cs" />
+    <Compile Include="NHSpecificTest\NH2651\Model.cs" />
     <Compile Include="NHSpecificTest\NH2789\Entities.cs" />
     <Compile Include="NHSpecificTest\NH2789\Fixture.cs" />
     <Compile Include="NHSpecificTest\NH2347\Entity.cs" />
@@ -2836,6 +2838,7 @@
     <EmbeddedResource Include="NHSpecificTest\NH1291AnonExample\Mappings.hbm.xml" />
   </ItemGroup>
   <ItemGroup>
+    <EmbeddedResource Include="NHSpecificTest\NH2651\Mappings.hbm.xml" />
     <EmbeddedResource Include="NHSpecificTest\NH3121\Mappings.hbm.xml" />
     <EmbeddedResource Include="NHSpecificTest\NH2789\Mappings.hbm.xml" />
     <EmbeddedResource Include="NHSpecificTest\NH3142\Mappings.hbm.xml" />