1 files changed, 9 insertions, 2 deletions
diff --git a/external/rx/Ix/NET/Tests/AsyncTests.Multiple.cs b/external/rx/Ix/NET/Tests/AsyncTests.Multiple.cs
index 1ddd56f753..464e83d4dd 100644
--- a/external/rx/Ix/NET/Tests/AsyncTests.Multiple.cs
+++ b/external/rx/Ix/NET/Tests/AsyncTests.Multiple.cs
@@ -1,11 +1,18 @@
 // Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
-#if DESKTOPCLR40
+#if !NO_TPL
 
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+#if NUNIT
+using NUnit.Framework;
+using TestClassAttribute = NUnit.Framework.TestFixtureAttribute;
+using TestMethodAttribute = NUnit.Framework.TestAttribute;
+using TestInitializeAttribute = NUnit.Framework.SetUpAttribute;
+#else
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+#endif
 using System.Threading;
 
 namespace Tests