Add extra comments to group tests

TShockLauncher.Tests/GroupTests.cs

@@ -8,16 +8,19 @@ namespace TShockLauncher.Tests;
 
 public class GroupTests
 {
+	/// <summary>
+	/// This will be called automatically by nunit before other tests in this class.
+	/// It serves to initialise the bare minimum variables needed for TShock to be testable without booting up an actual server.
+	/// </summary>
 	[SetUp]
 	public static void SetupTShock()
 	{
-		Program.SavePath = ""; // 1.4.4.2
+		Program.SavePath = ""; // 1.4.4.2 staticness introduced this where by default it is null, and any touch to Terraria.Main will use it and cause a crash.
-		LanguageManager.Instance.SetLanguage(GameCulture.DefaultCulture);
+		LanguageManager.Instance.SetLanguage(GameCulture.DefaultCulture); // TShockAPI.Localization will fail without ActiveCulture set
-		Lang.InitializeLegacyLocalization();
+		Lang.InitializeLegacyLocalization(); // TShockAPI.Localization will fail without preparing NPC names etc
 
-		//Setup();
 		var ts = new TShock(null); // prepares configs etc
-		ts.Initialize();
+		ts.Initialize(); // used to prepare tshocks own static variables, such as the TShock.DB instance
 	}
 
 	/// <summary>