Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Test/OpenRA.Game/PlatformTest.cs

@@ -0,0 +1,43 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.IO;
+using NUnit.Framework;
+
+namespace OpenRA.Test
+{
+	[TestFixture]
+	sealed class PlatformTest
+	{
+		string supportDir;
+		string engineDir;
+
+		[SetUp]
+		public void SetUp()
+		{
+			supportDir = Platform.SupportDir;
+			engineDir = Platform.EngineDir;
+		}
+
+		[TestCase(TestName = "Returns literal paths")]
+		public void ResolvePath()
+		{
+			Assert.That(Platform.ResolvePath("^SupportDir|testpath"),
+				Is.EqualTo(Path.Combine(supportDir, "testpath")));
+
+			Assert.That(Platform.ResolvePath("^EngineDir|Foo.dll"),
+				Is.EqualTo(Path.Combine(engineDir, "Foo.dll")));
+
+			Assert.That(Platform.ResolvePath("testpath"),
+				Is.EqualTo("testpath"));
+		}
+	}
+}