chore: tests

src/sdk.tests/FileExtensions.cs

@@ -0,0 +1,16 @@
+// Copyright (c) The Geekeey Authors
+// SPDX-License-Identifier: EUPL-1.2
+
+namespace Geekeey.Arcade.NET.Tests;
+
+public static class FileExtensions
+{
+	extension(File)
+	{
+		public static string? GetPathOfFileAbove(string directory, string file)
+		{
+			var directoryName = Directory.GetDirectoryNameOfFileAbove(directory, file);
+			return directoryName is null ? null : Path.Combine(directoryName, file);
+		}
+	}
+}