Fix tests

src/Zio.Tests/FileSystems/TestMountFileSystem.cs

@@ -453,10 +453,10 @@ public void TestDirectorySymlink()
         var pathInfo = physicalFs.ConvertPathFromInternal(SystemPath).ToRelative();
         var pathSource = "/physical" / pathInfo / "Source";
         var filePathSource = pathSource / "test.txt";
-        var systemPathSource = fs.ConvertPathToInternal(pathSource);
+        var systemPathSource = Path.Combine(SystemPath, "Source");
         var pathDest = "/physical" / pathInfo / "Dest";
         var filePathDest = pathDest / "test.txt";
-        var systemPathDest = fs.ConvertPathToInternal(pathDest);
+        var systemPathDest = Path.Combine(SystemPath, "Dest");
 
         try
         {

src/Zio/FileSystems/FileSystem.cs

@@ -575,6 +575,7 @@ public UPath ConvertPathFromInternal(string systemPath)
         if (systemPath is null) throw new ArgumentNullException(nameof(systemPath));
         return ValidatePath(ConvertPathFromInternalImpl(systemPath));
     }
+
     /// <summary>
     /// Implementation for <see cref="ConvertPathToInternal"/>, <paramref name="innerPath"/> is guaranteed to be not null and return path to be validated through <see cref="ValidatePath"/>.
     /// Converts the specified system path to a <see cref="IFileSystem"/> path.

src/Zio/FileSystems/MountFileSystem.cs

@@ -976,19 +976,6 @@ protected override UPath ConvertPathFromDelegate(UPath path)
         return path;
     }
 
-    protected override string ConvertPathToInternalImpl(UPath path)
-    {
-        var mountPath = path;
-        var mountfs = TryGetMountOrNext(ref mountPath);
-
-        if (mountfs != null)
-        {
-            return mountfs.ConvertPathToInternal(mountPath);
-        }
-
-        return base.ConvertPathToInternalImpl(path);
-    }
-
     private IFileSystem? TryGetMountOrNext(ref UPath path)
     {
         return TryGetMountOrNext(ref path, out var _);