diff --git a/src/Microsoft.DotNet.TestFramework/Microsoft.DotNet.TestFramework.TestInstance.cs b/src/Microsoft.DotNet.TestFramework/Microsoft.DotNet.TestFramework.TestInstance.cs
deleted file mode 100644
index f9903bdb5..000000000
--- a/src/Microsoft.DotNet.TestFramework/Microsoft.DotNet.TestFramework.TestInstance.cs
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (c) .NET Foundation and contributors. All rights reserved.
-// Licensed under the MIT license. See LICENSE file in the project root for full license information.
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.DotNet.TestFramework
-{
-    public class TestInstance
-    {
-        // made tolower because the rest of the class works with normalized tolower strings
-        private static readonly IEnumerable<string> BuildArtifactBlackList = new List<string>() {".IncrementalCache", ".SDKVersion"}.Select(s => s.ToLower()).ToArray();
-
-        private string _testDestination;
-        private string _testAssetRoot;
-
-        internal TestInstance(string testAssetRoot, string testDestination)
-        {
-            Console.WriteLine($"Copying {testAssetRoot} to {testDestination}");
-            if (string.IsNullOrEmpty(testAssetRoot))
-            {
-                throw new ArgumentException("testScenario");
-            }
-
-            if (string.IsNullOrEmpty(testDestination))
-            {
-                throw new ArgumentException("testDestination");
-            }
-
-            _testAssetRoot = testAssetRoot;
-            _testDestination = testDestination;
-
-            if (Directory.Exists(testDestination))
-            {
-                Directory.Delete(testDestination, true);
-            }
-
-            Directory.CreateDirectory(testDestination);
-            CopySource();
-        }
-
-        private void CopySource()
-        {
-            var sourceDirs = Directory.GetDirectories(_testAssetRoot, "*", SearchOption.AllDirectories)
-                                 .Where(dir =>
-                                 {
-                                     dir = dir.ToLower();
-                                     return !dir.EndsWith($"{Path.DirectorySeparatorChar}bin")
-                                            && !dir.Contains($"{Path.DirectorySeparatorChar}bin{Path.DirectorySeparatorChar}")
-                                            && !dir.EndsWith($"{Path.DirectorySeparatorChar}obj")
-                                            && !dir.Contains($"{Path.DirectorySeparatorChar}obj{Path.DirectorySeparatorChar}");
-                                 });
-
-            foreach (string sourceDir in sourceDirs)
-            {
-                Directory.CreateDirectory(sourceDir.Replace(_testAssetRoot, _testDestination));
-            }
-
-            var sourceFiles = Directory.GetFiles(_testAssetRoot, "*.*", SearchOption.AllDirectories)
-                                  .Where(file =>
-                                  {
-                                      file = file.ToLower();
-                                      return !file.EndsWith("project.lock.json")
-                                            && !file.Contains($"{Path.DirectorySeparatorChar}bin{Path.DirectorySeparatorChar}")
-                                            && !file.Contains($"{Path.DirectorySeparatorChar}obj{Path.DirectorySeparatorChar}");
-                                  });
-
-            foreach (string srcFile in sourceFiles)
-            {
-                string destFile = srcFile.Replace(_testAssetRoot, _testDestination);
-                File.Copy(srcFile, destFile, true);
-            }
-        }
-
-        public TestInstance WithLockFiles()
-        {
-            foreach (string lockFile in Directory.GetFiles(_testAssetRoot, "project.lock.json", SearchOption.AllDirectories))
-            {
-                string destinationLockFile = lockFile.Replace(_testAssetRoot, _testDestination);
-                File.Copy(lockFile, destinationLockFile, true);
-            }
-
-            return this;
-        }
-
-        public TestInstance WithBuildArtifacts()
-        {
-            var binDirs = Directory.GetDirectories(_testAssetRoot, "*", SearchOption.AllDirectories)
-                                 .Where(dir =>
-                                 {
-                                     dir = dir.ToLower();
-                                     return dir.EndsWith($"{Path.DirectorySeparatorChar}bin")
-                                            || dir.Contains($"{Path.DirectorySeparatorChar}bin{Path.DirectorySeparatorChar}")
-                                            || dir.EndsWith($"{Path.DirectorySeparatorChar}obj")
-                                            || dir.Contains($"{Path.DirectorySeparatorChar}obj{Path.DirectorySeparatorChar}");
-                                 });
-
-            foreach (string dirPath in binDirs)
-            {
-                Directory.CreateDirectory(dirPath.Replace(_testAssetRoot, _testDestination));
-            }
-
-            var binFiles = Directory.GetFiles(_testAssetRoot, "*.*", SearchOption.AllDirectories)
-                                 .Where(file =>
-                                 {
-                                     file = file.ToLower();
-
-                                     var isArtifact = file.Contains($"{Path.DirectorySeparatorChar}bin{Path.DirectorySeparatorChar}")
-                                            || file.Contains($"{Path.DirectorySeparatorChar}obj{Path.DirectorySeparatorChar}");
-
-                                     var isBlackListed = BuildArtifactBlackList.Any(b => file.Contains(b));
-
-                                     return isArtifact && !isBlackListed;
-                                 });
-
-            foreach (string binFile in binFiles)
-            {
-                string destFile = binFile.Replace(_testAssetRoot, _testDestination);
-                File.Copy(binFile, destFile, true);
-            }
-
-            return this;
-        }
-
-        public string TestRoot
-        {
-            get { return _testDestination; }
-        }
-    }
-}
diff --git a/src/Microsoft.DotNet.TestFramework/TestAssetsManager.cs b/src/Microsoft.DotNet.TestFramework/TestAssetsManager.cs
index e31e00b01..61872b1b2 100644
--- a/src/Microsoft.DotNet.TestFramework/TestAssetsManager.cs
+++ b/src/Microsoft.DotNet.TestFramework/TestAssetsManager.cs
@@ -102,7 +102,7 @@ namespace Microsoft.DotNet.TestFramework
             var testInstance = new TestInstance(testProjectDir, testDestination);
             return testInstance;
         }
-        
+
         public TestDirectory CreateTestDirectory([CallerMemberName] string callingMethod = "", string identifier = "")
         {
             string testDestination = Path.Combine(AppContext.BaseDirectory, callingMethod + identifier);
diff --git a/src/Microsoft.DotNet.TestFramework/TestDirectory.cs b/src/Microsoft.DotNet.TestFramework/TestDirectory.cs
index e599b79e7..d76387d8a 100644
--- a/src/Microsoft.DotNet.TestFramework/TestDirectory.cs
+++ b/src/Microsoft.DotNet.TestFramework/TestDirectory.cs
@@ -22,9 +22,9 @@ namespace Microsoft.DotNet.TestFramework
             
             EnsureExistsAndEmpty(Path);
         }
-        
+
         public string Path { get; private set; }
-        
+
         private static void EnsureExistsAndEmpty(string path)
         {
             if (Directory.Exists(path))
diff --git a/src/Microsoft.DotNet.TestFramework/TestInstance.cs b/src/Microsoft.DotNet.TestFramework/TestInstance.cs
index d6489bf34..a5fd9bee7 100644
--- a/src/Microsoft.DotNet.TestFramework/TestInstance.cs
+++ b/src/Microsoft.DotNet.TestFramework/TestInstance.cs
@@ -11,6 +11,9 @@ namespace Microsoft.DotNet.TestFramework
 {
     public class TestInstance: TestDirectory
     {
+        // made tolower because the rest of the class works with normalized tolower strings 
+        private static readonly IEnumerable<string> BuildArtifactBlackList = new List<string>() {".IncrementalCache", ".SDKVersion"}.Select(s => s.ToLower()).ToArray();
+
         private string _testAssetRoot;
 
         internal TestInstance(string testAssetRoot, string testDestination) : base(testDestination)
@@ -21,7 +24,7 @@ namespace Microsoft.DotNet.TestFramework
             }
 
             _testAssetRoot = testAssetRoot;
-            
+
             CopySource();
         }
 
@@ -92,8 +95,13 @@ namespace Microsoft.DotNet.TestFramework
                                  .Where(file =>
                                  {
                                      file = file.ToLower();
-                                     return file.Contains($"{System.IO.Path.DirectorySeparatorChar}bin{System.IO.Path.DirectorySeparatorChar}") 
+
+                                     var isArtifact = file.Contains($"{System.IO.Path.DirectorySeparatorChar}bin{System.IO.Path.DirectorySeparatorChar}") 
                                             || file.Contains($"{System.IO.Path.DirectorySeparatorChar}obj{System.IO.Path.DirectorySeparatorChar}");
+ 
+                                     var isBlackListed = BuildArtifactBlackList.Any(b => file.Contains(b)); 
+ 
+                                     return isArtifact && !isBlackListed;
                                  });
 
             foreach (string binFile in binFiles)
diff --git a/src/dotnet/Program.cs b/src/dotnet/Program.cs
index fd8fcbb31..4a6641ba2 100644
--- a/src/dotnet/Program.cs
+++ b/src/dotnet/Program.cs
@@ -42,9 +42,9 @@ namespace Microsoft.DotNet.Cli
         public static int Main(string[] args)
         {
             DebugHelper.HandleDebugSwitch(ref args);
-            
+
             new MulticoreJitActivator().TryActivateMulticoreJit();
-            
+
             if (Env.GetEnvironmentVariableAsBool("DOTNET_CLI_CAPTURE_TIMING", false))
             {
                 PerfTrace.Enabled = true;
diff --git a/test/dotnet-build.Tests/ProjectNameArgumentTests.cs b/test/dotnet-build.Tests/ProjectNameArgumentTests.cs
index 611540b1c..c46ee18f3 100644
--- a/test/dotnet-build.Tests/ProjectNameArgumentTests.cs
+++ b/test/dotnet-build.Tests/ProjectNameArgumentTests.cs
@@ -96,6 +96,7 @@ namespace Microsoft.DotNet.Tools.Builder.Tests
         {
             Test(new string[] { }, new[] { "L21" }, workingDirectory: Path.Combine("src", "L21"));
         }
+
         [Fact]
         public void TestFailsIfNoProjectJsonInCurrentDirectoryWithNoArguments()
         {
diff --git a/test/dotnet.Tests/GivenThatIWantToManageMulticoreJIT.cs b/test/dotnet.Tests/GivenThatIWantToManageMulticoreJIT.cs
index 97d80a577..d3dcc3e3b 100644
--- a/test/dotnet.Tests/GivenThatIWantToManageMulticoreJIT.cs
+++ b/test/dotnet.Tests/GivenThatIWantToManageMulticoreJIT.cs
@@ -110,7 +110,7 @@ namespace Microsoft.DotNet.Tests
             var rid = PlatformServices.Default.Runtime.GetRuntimeIdentifier();
             
             return RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
-                ? $@"Microsoft\dotnet\sdk\{version}{rid}\optimizationdata"
+                ? $@"Microsoft\dotnet\sdk\{version}\{rid}\optimizationdata" 
                 : $@".dotnet/sdk/{version}/{rid}/optimizationdata";
         }