From 5d8c122476fc345dd1c4a3b89a3db2a72d4a330c Mon Sep 17 00:00:00 2001
From: "Simon G." <simon.gockner@gmail.com>
Date: Thu, 19 Dec 2024 09:24:17 +0100
Subject: [PATCH] - fix validation of open generic type registrations

---
 .../IocValidator.cs                               | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/LightweightIocContainer.Validation/IocValidator.cs b/LightweightIocContainer.Validation/IocValidator.cs
index 12065eb..c4b7bb2 100644
--- a/LightweightIocContainer.Validation/IocValidator.cs
+++ b/LightweightIocContainer.Validation/IocValidator.cs
@@ -60,6 +60,21 @@ public class IocValidator(IocContainer iocContainer)
 
     private void TryResolve(Type type, object?[]? arguments, List<Exception> validationExceptions, bool isFactoryResolve = false)
     {
+        if (type.ContainsGenericParameters)
+        {
+            List<Type> genericParameters = [];
+            
+            Type[] genericArguments = type.GetGenericArguments();
+            foreach (Type genericArgument in genericArguments.Where(g => g.IsGenericParameter))
+            {
+                Type[] genericParameterConstraints = genericArgument.GetGenericParameterConstraints();
+                object mock = Substitute.For(genericParameterConstraints, []);
+                genericParameters.Add(mock.GetType());
+            }
+
+            type = type.MakeGenericType(genericParameters.ToArray());
+        }
+        
         (bool success, object _, Exception? exception) = iocContainer.TryResolveNonGeneric(type, arguments, null, isFactoryResolve);
         if (success)
             return;