Pinning the CLI version because once this goes in, the next stage0 won't allow for having compile in the csprojs. We will have to update the CLI ones.

test/dotnet-vstest.Tests/VSTestTests.cs

@@ -19,12 +19,17 @@ namespace Microsoft.DotNet.Cli.VSTest.Tests
             var testAppName = "VSTestDotNetCore";
             var testRoot = TestAssets.Get(testAppName)
                 .CreateInstance()
+                .WithSourceFiles()
                 .WithRestoreFiles()
-                .WithBuildFiles()
                 .Root;
 
             var configuration = Environment.GetEnvironmentVariable("CONFIGURATION") ?? "Debug";
 
+            new BuildCommand()
+                .WithWorkingDirectory(testRoot)
+                .Execute()
+                .Should().Pass();
+
             var outputDll = testRoot
                 .GetDirectory("bin", configuration, "netcoreapp1.0")
                 .GetFile($"{testAppName}.dll");