Fix restore command absolute path error for Windows (#190)

* Fix SelfInstallTest to also run on Windows

* Fix namespaces in UnitTests

* Fix physical path conversion for Windows

Author: MattKotsenas

src/dnvm/DnvmEnv.cs

@@ -115,11 +115,12 @@ public static DnvmEnv CreatePhysical(
         Action<string, string> setUserEnvVar)
     {
         Directory.CreateDirectory(realPath);
+
         return new DnvmEnv(
             userHome: GetFolderPath(SpecialFolder.UserProfile, SpecialFolderOption.DoNotVerify),
             new SubFileSystem(PhysicalFs, PhysicalFs.ConvertPathFromInternal(realPath)),
             PhysicalFs,
-            new UPath(Environment.CurrentDirectory),
+            PhysicalFs.ConvertPathFromInternal(Environment.CurrentDirectory),
             isPhysical: true,
             getUserEnvVar,
             setUserEnvVar);

test/IntegrationTests/SelfInstallTests.cs

@@ -3,6 +3,7 @@
 using System.ComponentModel;
 using System.Diagnostics;
 using System.Reflection;
+using System.Runtime.InteropServices;
 using System.Security.Cryptography;
 using Xunit;
 using Xunit.Abstractions;
@@ -330,7 +331,11 @@ public async Task RunUpdateSelfInstaller()
         Directory.CreateDirectory(sdkDir);
         var fakeDotnet = Path.Combine(sdkDir, Utilities.DotnetExeName);
         Assets.MakeEchoExe(fakeDotnet, "Hello from dotnet test");
-        _ = await ProcUtil.RunWithOutput("chmod", $"+x {fakeDotnet}");
+
+        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+        {
+            _ = await ProcUtil.RunWithOutput("chmod", $"+x {fakeDotnet}");
+        }
 
         var startVer = Program.SemVer;
         var result = await ProcUtil.RunWithOutput(

test/UnitTests/ManifestTests.cs

@@ -1,11 +1,9 @@
 
-using System.Net.Security;
-using Serde.Json;
 using Dnvm;
-using Dnvm.Test;
 using Semver;
 using Xunit;
-using System.Net.NetworkInformation;
+
+namespace Dnvm.Test;
 
 public sealed class ManifestTests
 {

test/UnitTests/SelectTests.cs

@@ -1,12 +1,9 @@
 
-using System.Collections.Immutable;
-using System.Runtime.CompilerServices;
-using Dnvm.Test;
 using Spectre.Console.Testing;
 using Xunit;
 using Xunit.Abstractions;
 
-namespace Dnvm;
+namespace Dnvm.Test;
 
 public sealed class SelectTests
 {