Merge pull request #539 from CJ-SPT/test-mod

Intoduce test mod and restructure test suites into their own solution folder

Testing/UnitTests/DI.cs

@@ -0,0 +1,68 @@
+using Microsoft.Extensions.DependencyInjection;
+using NUnit.Framework;
+using SPTarkov.DI;
+using SPTarkov.Server.Core.DI;
+using SPTarkov.Server.Core.Models.Spt.Mod;
+using SPTarkov.Server.Core.Utils;
+using SPTarkov.Server.Core.Utils.Logger.Handlers;
+using UnitTests.Mock;
+
+namespace UnitTests;
+
+[TestFixture]
+public class DI
+{
+    private static IServiceProvider _serviceProvider;
+
+    private static DI? _instance;
+
+    private DI()
+    {
+        ConfigureServices();
+    }
+
+    public static DI GetInstance()
+    {
+        return _instance ??= new DI();
+    }
+
+    private void ConfigureServices()
+    {
+        if (_serviceProvider != null)
+        {
+            return;
+        }
+
+        var services = new ServiceCollection();
+
+        var diHandler = new DependencyInjectionHandler(services);
+
+        diHandler.AddInjectableTypesFromTypeAssembly(typeof(App));
+        diHandler.AddInjectableTypesFromTypeList(
+            [
+                typeof(MockLogger<>), // TODO: this needs to be enabled but the randomizer needs to NOT be random, typeof(MockRandomUtil)
+            ]
+        );
+
+        diHandler.InjectAll();
+
+        services.AddSingleton<IReadOnlyList<SptMod>>(_ => []);
+
+        _serviceProvider = services.BuildServiceProvider();
+
+        foreach (var onLoad in _serviceProvider.GetServices<IOnLoad>())
+        {
+            if (onLoad is FileLogHandler)
+            {
+                continue;
+            }
+            onLoad.OnLoad().Wait();
+        }
+    }
+
+    public T GetService<T>()
+        where T : notnull
+    {
+        return _serviceProvider.GetRequiredService<T>();
+    }
+}