build: initial project release

src/process.tests/_fixture/TestEnvironment.cs

@@ -0,0 +1,32 @@
+// Copyright (c) The Geekeey Authors
+// SPDX-License-Identifier: EUPL-1.2
+
+namespace Geekeey.Process.Tests;
+
+internal sealed class TestEnvironment : IDisposable
+{
+	private readonly Action _action;
+
+	private TestEnvironment(Action action)
+	{
+		_action = action;
+	}
+
+	public static TestEnvironment Create(string name, string? value)
+	{
+		var lastValue = Environment.GetEnvironmentVariable(name);
+		Environment.SetEnvironmentVariable(name, value);
+
+		return new TestEnvironment(() => Environment.SetEnvironmentVariable(name, lastValue));
+	}
+
+	public static TestEnvironment ExtendPath(string path)
+	{
+		return Create("PATH", Environment.GetEnvironmentVariable("PATH") + Path.PathSeparator + path);
+	}
+
+	public void Dispose()
+	{
+		_action();
+	}
+}