diff --git a/tests/TestSupport/AssertExtensions.cs b/tests/TestSupport/AssertExtensions.cs
index 3602739..8dc3368 100644
--- a/tests/TestSupport/AssertExtensions.cs
+++ b/tests/TestSupport/AssertExtensions.cs
@@ -2,14 +2,7 @@
 
 using System;
 using System.Reflection;
-
-#if NETFX_CORE
-using Microsoft.VisualStudio.TestPlatform.UnitTestFramework;
-#elif __IOS__
-using NUnit.Framework;
-#else
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-#endif
 
 namespace Microsoft.Practices.Unity.TestSupport
 {
diff --git a/tests/TestSupport/CollectionAssertExtensions.cs b/tests/TestSupport/CollectionAssertExtensions.cs
index 4a9dd42..e813ec2 100644
--- a/tests/TestSupport/CollectionAssertExtensions.cs
+++ b/tests/TestSupport/CollectionAssertExtensions.cs
@@ -1,19 +1,9 @@
 // Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
 
-using System;
 using System.Collections;
 using System.Globalization;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-#if NETFX_CORE
-using Microsoft.VisualStudio.TestPlatform.UnitTestFramework;
-#elif __IOS__
-using NUnit.Framework;
-using AssertFailedException = NUnit.Framework.AssertionException;
-#else
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-#endif
 
 namespace Microsoft.Practices.Unity.TestSupport
 {
diff --git a/tests/TestSupport/EnumerableAssertionExtensions.cs b/tests/TestSupport/EnumerableAssertionExtensions.cs
index 7ad8915..da14ec5 100644
--- a/tests/TestSupport/EnumerableAssertionExtensions.cs
+++ b/tests/TestSupport/EnumerableAssertionExtensions.cs
@@ -3,13 +3,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-#if NETFX_CORE
-using Microsoft.VisualStudio.TestPlatform.UnitTestFramework;
-#elif __IOS__
-using NUnit.Framework;
-#else
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-#endif
 
 namespace Microsoft.Practices.Unity.TestSupport
 {
diff --git a/tests/TestSupport/ObjectWithTwoProperties.cs b/tests/TestSupport/ObjectWithTwoProperties.cs
index cc3b461..cf39fe5 100644
--- a/tests/TestSupport/ObjectWithTwoProperties.cs
+++ b/tests/TestSupport/ObjectWithTwoProperties.cs
@@ -1,12 +1,6 @@
 // Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
 
-#if NETFX_CORE
-using Microsoft.VisualStudio.TestPlatform.UnitTestFramework;
-#elif __IOS__
-using NUnit.Framework;
-#else
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-#endif
 
 namespace Microsoft.Practices.Unity.TestSupport
 {