tests: Add test to confirm v106 game loads correctly.

Author: SamboyCoding

Cpp2IL.Core.Tests/DynamicWidthTests.cs

@@ -0,0 +1,21 @@
+namespace Cpp2IL.Core.Tests;
+
+public class DynamicWidthTests
+{
+    [SetUp]
+    public void Setup()
+    {
+        Cpp2IlApi.ResetInternalState();
+        TestGameLoader.LoadSimpleV106Game();
+    }
+    
+    [Test]
+    public void AssertTheGameLoadedProperly()
+    {
+        var context = Cpp2IlApi.CurrentAppContext!;
+        
+        //Yes, this is really dumb and stupid as a test. But it does actually test that the dynamic-width impl is correct (or we'd throw in setup)
+        //and we can't actually check the calculation easily from here, because the index widths are only configured while actively loading the metadata.
+        Assert.That(context, Is.Not.Null);
+    }
+}

Cpp2IL.Core.Tests/Paths.cs

@@ -23,4 +23,13 @@ public static class Simple2022Game
         public const string GameAssembly = RootDirectory + "GameAssembly.dll";
         public const string Metadata = DataDirectory + "il2cpp_data/Metadata/global-metadata.dat";
     }
+    
+    public static class SimpleV106Game
+    {
+        public const string RootDirectory = TestFilesDirectory + "Simple_6000_5_0_a6/";
+        public const string DataDirectory = RootDirectory + "Simple_6000_5_0_a6_Data/";
+        // public const string ExecutableFile = RootDirectory + "Simple_6000_5_0_a6.exe"; //doesn't actually exist
+        public const string GameAssembly = RootDirectory + "GameAssembly.dll";
+        public const string Metadata = DataDirectory + "il2cpp_data/Metadata/global-metadata.dat";
+    }
 }

Cpp2IL.Core.Tests/TestGameLoader.cs

@@ -28,4 +28,11 @@ public static ApplicationAnalysisContext LoadSimple2022Game()
         Cpp2IlApi.InitializeLibCpp2Il(Paths.Simple2022Game.GameAssembly, Paths.Simple2022Game.Metadata, new UnityVersion(2022, 3, 35, UnityVersionType.Final, 1));
         return Cpp2IlApi.CurrentAppContext!;
     }
+    
+    public static ApplicationAnalysisContext LoadSimpleV106Game()
+    {
+        EnsureInit();
+        Cpp2IlApi.InitializeLibCpp2Il(Paths.SimpleV106Game.GameAssembly, Paths.SimpleV106Game.Metadata, new UnityVersion(6000, 5, 0, UnityVersionType.Alpha, 6));
+        return Cpp2IlApi.CurrentAppContext!;
+    }
 }