diff --git a/src/AddIns/Misc/UnitTesting/Test/Project/IsTestProjectTests.cs b/src/AddIns/Misc/UnitTesting/Test/Project/IsTestProjectTests.cs
index c50a837d37..ab55d08d66 100644
--- a/src/AddIns/Misc/UnitTesting/Test/Project/IsTestProjectTests.cs
+++ b/src/AddIns/Misc/UnitTesting/Test/Project/IsTestProjectTests.cs
@@ -63,14 +63,7 @@ namespace UnitTesting.Tests.Project
 		[Test]
 		public void NullReferenceName()
 		{
-			IProject project = new MockCSharpProject();
-			ReferenceProjectItem referenceProjectItem = new ReferenceProjectItem(project);
-			referenceProjectItem.Include = null;
-			
-			// DG: project items without include are now forbidden by MSBuild.
-			ProjectService.AddProjectItem(project, referenceProjectItem);
-			
-			Assert.IsFalse(TestProject.IsTestProject(project));
+			Assert.IsFalse(TestProject.IsTestFrameworkReference(null));
 		}
 		
 		[Test]
diff --git a/src/AddIns/Misc/UnitTesting/Test/Tree/SolutionOpenedTestFixture.cs b/src/AddIns/Misc/UnitTesting/Test/Tree/SolutionOpenedTestFixture.cs
index d7ac128195..2e0b5cdf62 100644
--- a/src/AddIns/Misc/UnitTesting/Test/Tree/SolutionOpenedTestFixture.cs
+++ b/src/AddIns/Misc/UnitTesting/Test/Tree/SolutionOpenedTestFixture.cs
@@ -122,9 +122,9 @@ namespace UnitTesting.Tests.Tree
 			
 			base.ProjectAdded(project);
 			
-			// DG: This call fails now - the same ProjectItem cannot be added twice.
-			// Did you intend to add another reference to NUnit.Framework?
-			// Then add
+			// Add a second NUnit.Framework reference.
+			refProjectItem = new ReferenceProjectItem(project);
+			refProjectItem.Include = "NUnit.Framework";
 			ProjectService.AddProjectItem(project, refProjectItem);
 			
 			base.ProjectItemAdded(refProjectItem);