fix for unix

src/Amusoft.DotnetNew.Tests/Internals/PathHelper.cs

@@ -0,0 +1,17 @@
+
+using System.IO;
+
+namespace Amusoft.DotnetNew.Tests.Internals;
+
+internal static class PathHelper
+{
+	public static string AbsoluteTrimPathEnd(string input, int count)
+	{
+		for (int i = 0; i < count; i++)
+		{
+			input = Path.GetDirectoryName(input);
+		}
+
+		return input;
+	}
+}

src/Amusoft.DotnetNew.Tests/Templating/TemplateSolutionInstaller.cs

@@ -2,11 +2,13 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using Amusoft.DotnetNew.Tests.CLI;
 using Amusoft.DotnetNew.Tests.Diagnostics;
+using Amusoft.DotnetNew.Tests.Internals;
 using Amusoft.DotnetNew.Tests.Rewriters;
 using Amusoft.DotnetNew.Tests.Scopes;
 using Amusoft.DotnetNew.Tests.Utility;
@@ -101,7 +103,7 @@ public CrossPlatformPath[] DiscoverTemplates(string searchFolder)
 		var templateFiles = Directory.EnumerateFiles(folder.OriginalPath, "template.json", SearchOption.AllDirectories);
 
 		return templateFiles
-			.Select(path => Path.Combine(path.Split(Path.DirectorySeparatorChar)[..^2]))
+			.Select(path => PathHelper.AbsoluteTrimPathEnd(path, 2))
 			.Select(path => Solution.PathTranslator.GetRelativePath(path))
 			.ToArray();
 	}

tests/Amusoft.DotnetNew.Tests.UnitTests/Tests/PathHelperTests.cs

@@ -0,0 +1,24 @@
+using System;
+using System.IO;
+using System.Runtime.CompilerServices;
+using Amusoft.DotnetNew.Tests.Internals;
+using Amusoft.DotnetNew.Tests.Utility;
+using Shouldly;
+using Xunit;
+
+namespace Amusoft.DotnetNew.Tests.UnitTests.Tests;
+
+public class PathHelperTests
+{
+	[Theory]
+	[InlineData("/home/runner/work/Amusoft.DotnetNew.Tests/Amusoft.DotnetNew.Tests/tests/Resources/dotnet-library-repo/.template.config/template.json"
+		, 2, "/home/runner/work/Amusoft.DotnetNew.Tests/Amusoft.DotnetNew.Tests/tests/Resources/dotnet-library-repo")]
+	[InlineData("/home/runner/work/Amusoft.DotnetNew.Tests/Amusoft.DotnetNew.Tests/tests/Resources/dotnet-library-repo/.template.config/template.json"
+		, 3, "/home/runner/work/Amusoft.DotnetNew.Tests/Amusoft.DotnetNew.Tests/tests/Resources")]
+	public void PathTrimming(string input, int trim, string expected)
+	{
+		var o = PathHelper.AbsoluteTrimPathEnd(input, trim);
+		var r = new CrossPlatformPath(o);
+		r.ShouldBe(new CrossPlatformPath(expected));
+	}
+}