1 files changed, 68 insertions, 0 deletions
diff --git a/tests/src/Loader/classloader/DefaultInterfaceMethods/sharedgenerics/sharedgenerics.cs b/tests/src/Loader/classloader/DefaultInterfaceMethods/sharedgenerics/sharedgenerics.cs
new file mode 100644
index 0000000000..93b214dfb7
--- /dev/null
+++ b/tests/src/Loader/classloader/DefaultInterfaceMethods/sharedgenerics/sharedgenerics.cs
@@ -0,0 +1,68 @@
+using System;
+
+interface IFoo<T>
+{
+    Type Foo(T a);
+}
+
+interface IBar<in T>
+{
+    Type Bar(T b);
+}
+
+class FooBar<T, U> : IFoo<T>, IBar<U>
+{
+    public Type Foo(T a)
+    {
+        Console.WriteLine("At IFoo.Foo:Arg={0}, TypeOf(T)={1}", a.ToString(), typeof(T));
+        return typeof(T);            
+    }
+
+    public Type Bar(U b)
+    {
+        Console.WriteLine("At IBar.Bar:Arg={0}, TypeOf(T)={1}", b.ToString(), typeof(U));
+        return typeof(U);
+    }
+}
+
+class Program
+{
+    public static int Main()
+    {
+        FooBar<string, object> fooBar = new FooBar<string, object>();
+        IFoo<string> foo = (IFoo<string>) fooBar;
+        IBar<string[]> bar = (IBar<string[]>) fooBar;
+
+        Console.WriteLine("Calling IFoo<string>.Foo on FooBar<string, object> - expecting default method IFoo<string>.Foo");
+        Test.Assert(foo.Foo("ABC") == typeof(string), "Calling IFoo<string>.Foo on FooBar<string, object>");
+
+        Console.WriteLine("Calling IBar<string[]>.Foo on FooBar<string, object> - expecting default method IBar<object>.Foo");
+        Test.Assert(bar.Bar(new string[] { "ABC" }) == typeof(object), "Calling IBar<object>.Bar on FooBar<string, object>");
+
+        return Test.Ret();
+    }
+}
+
+class Test
+{
+    private static bool Pass = true;
+
+    public static int Ret()
+    {
+        return Pass? 100 : 101;
+    }
+
+    public static void Assert(bool cond, string msg)
+    {
+        if (cond)
+        {
+            Console.WriteLine("PASS");
+        }
+        else
+        {
+            Console.WriteLine("FAIL: " + msg);
+            Pass = false;
+        }
+    }
+}                    
+