NH-3045 - Add tests

Author: hazzik

src/NHibernate.Test/KnownBugAttribute.cs

@@ -4,19 +4,21 @@ namespace NHibernate.Test
 {
 	public class KnownBugAttribute : ExpectedExceptionAttribute
 	{
-		public KnownBugAttribute()
+		public KnownBugAttribute(string bug)
 		{
-			UserMessage = "Known bug";
+			UserMessage = "Known bug " + bug;
 		}
 
-		public KnownBugAttribute(System.Type exceptionType) : base(exceptionType)
+		public KnownBugAttribute(string bug, System.Type exceptionType) 
+			: base(exceptionType)
 		{
-			UserMessage = "Known bug";
+			UserMessage = "Known bug " + bug;
 		}
 
-		public KnownBugAttribute(string exceptionName) : base(exceptionName)
+		public KnownBugAttribute(string bug, string exceptionName)
+			: base(exceptionName)
 		{
-			UserMessage = "Known bug";
+			UserMessage = "Known bug " + bug;
 		}
 	}
 }

src/NHibernate.Test/Linq/ByMethod/GroupByTests.cs

@@ -4,6 +4,7 @@
 using System.Linq;
 using System.Text.RegularExpressions;
 using NHibernate.DomainModel.Northwind.Entities;
+using NHibernate.Linq;
 using NUnit.Framework;
 
 namespace NHibernate.Test.Linq.ByMethod

src/NHibernate.Test/Linq/SelectionTests.cs

@@ -296,6 +296,22 @@ public void CanSelectWithAggregateSubQuery()
 			Assert.AreEqual(4, timesheets[2].EntryCount);
 		}
 
+		[Test, KnownBug("NH-3045")]
+		public void CanSelectFirstElementFromChildCollection()
+		{
+			using (var log = new SqlLogSpy())
+			{
+				var orders = db.Customers
+					.Select(customer => customer.Orders.OrderByDescending(x => x.OrderDate).First())
+					.ToList();
+
+				Assert.That(orders, Has.Count.GreaterThan(0));
+
+				var text = log.GetWholeLog();
+				var count = text.Split(new[] { "SELECT" }, StringSplitOptions.None).Length - 1;
+				Assert.That(count, Is.EqualTo(1));
+			}
+		}
 
 		[Test]
 		public void CanSelectWrappedType()

src/NHibernate.Test/NHSpecificTest/NH2692/Fixture.cs

@@ -21,7 +21,7 @@ public void QueryingParentWhichHasChildren()
 			}
 		}
 
-		[Test, KnownBug]
+		[Test, KnownBug("NH-2692")]
 		public void QueryingChildrenComponents()
 		{
 			using (var session = OpenSession())
@@ -35,7 +35,7 @@ public void QueryingChildrenComponents()
 			}
 		}
 
-		[Test, KnownBug]
+		[Test, KnownBug("NH-2692")]
 		public void QueryingChildrenComponentsHql()
 		{
 			using (var session = OpenSession())