feat: Added tests

src/Testing/CoreTests/Configuration/HandlerDiscoveryTests.cs

@@ -22,6 +22,55 @@ public void assert_on_invalid_handler_types(Type candidateType)
             source.IncludeType(candidateType);
         });
     }
+
+    public record Message;
+    public class MyCustomListener
+    {
+        public void Handle(Message message){}
+    }
+
+    [Fact]
+    public void disabling_conventional_discovery_does_not_disable_custom_discovery()
+    {
+        var discovery = new HandlerDiscovery();
+        discovery.DisableConventionalDiscovery();
+        discovery.CustomizeHandlerDiscovery(q => q.Includes.WithNameSuffix("CustomListener"));
+
+        var discoveredHandlers = discovery.FindCalls(new WolverineOptions())
+            .Select(x => x.Item1)
+            .ToList();
+
+        discoveredHandlers.ShouldHaveSingleItem();
+        discoveredHandlers.ShouldContain(typeof(MyCustomListener));
+    }
+
+    [Fact]
+    public void disabling_conventional_discovery_does_not_exclude_explicit_types()
+    {
+        var discovery = new HandlerDiscovery();
+        discovery.DisableConventionalDiscovery();
+        discovery.IncludeType<MyCustomListener>();
+
+        var discoveredHandlers = discovery.FindCalls(new WolverineOptions())
+            .Select(x => x.Item1)
+            .ToList();
+
+        discoveredHandlers.ShouldHaveSingleItem();
+        discoveredHandlers.ShouldContain(typeof(MyCustomListener));
+    }
+
+    [Fact]
+    public void disabling_conventional_discovery_without_custom_discovery_should_not_find_any_handlers()
+    {
+        var discovery = new HandlerDiscovery();
+        discovery.DisableConventionalDiscovery();
+
+        var discoveredHandlers = discovery.FindCalls(new WolverineOptions())
+            .Select(x => x.Item1)
+            .ToList();
+
+        discoveredHandlers.ShouldBeEmpty();
+    }
 }
 
 internal static class InternalGuy;