[VS Addin] Disable PNaCl adding tests until newer SDK is available

visual_studio/NativeClientVSAddIn/UnitTests/ProjectSettingsTest.cs

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 namespace UnitTests
 {
   using System;
+  using System.IO;
 
   using EnvDTE;
   using EnvDTE80;
   using Microsoft.VisualStudio.TestTools.UnitTesting;
   using Microsoft.VisualStudio.VCProjectEngine;
+  using NaCl.Build.CPPTasks;
 
   /// <summary>
   /// This test class contains tests related to the custom project settings
   /// and property pages for PPAPI and NaCl configurations.
   /// </summary>
   [TestClass]
   public class ProjectSettingsTest
   {
     /// <summary>
     /// The below string holds the path to a NaCl solution used in some tests.
@@ skipping 79 matching lines @@
     /// Test method to check that the NaCl platform compiles a test project.
     /// </summary>
     [TestMethod]
     public void CheckNaClCompile()
     {
       string naclPlatform = NativeClientVSAddIn.Strings.NaCl64PlatformName;
       TryCompile(naclSolutionEmptyInitialization, "Debug", naclPlatform);
       TryCompile(naclSolutionEmptyInitialization, "Release", naclPlatform);
     }
 
+
+
     /// <summary>
     /// Test method to check that the NaCl platform compiles a test project.
     /// </summary>
     [TestMethod]
     public void CheckPNaClCompile()
     {
+        int revision;
+        string root = System.Environment.GetEnvironmentVariable("NACL_SDK_ROOT");
+        SDKUtilities.GetSDKVersion(root, out revision);
+        if (revision < SDKUtilities.MinPNaCLSDKVersion)
+        {
+            Assert.Inconclusive();
+        }
         string naclPlatform = NativeClientVSAddIn.Strings.PNaClPlatformName;
         TryCompile(naclSolutionEmptyInitialization, "Debug", naclPlatform);
         TryCompile(naclSolutionEmptyInitialization, "Release", naclPlatform);
     }
 
     /// <summary>
     /// Test method to check that the Pepper platform compiles a test project.
     /// </summary>
     [TestMethod]
     public void CheckPepperCompile()
@@ skipping 456 matching lines @@
           debug_,
           pageName,
           propertyName);
       TestUtilities.AssertPropertyIsNotNullOrEmpty(
           release_,
           pageName,
           propertyName);
     }
   }
 }