From 1cb8c01bed4a4b32ae1adba22bf1415d6d8529b0 Mon Sep 17 00:00:00 2001
From: UJJWAL CHADHA <ujchadha@microsoft.com>
Date: Thu, 24 Sep 2020 12:08:19 -0400
Subject: [PATCH] Add tests for IDynamicInterfaceCastable

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

diff --git a/UnitTest/TestComponentCSharp_Tests.cs b/UnitTest/TestComponentCSharp_Tests.cs
index 0221f6275..44c9e7448 100644
--- a/UnitTest/TestComponentCSharp_Tests.cs
+++ b/UnitTest/TestComponentCSharp_Tests.cs
@@ -30,8 +30,23 @@ public class TestCSharp
         public TestCSharp()
         {
             TestObject = new Class();
+        }
+
+#if NET5_0
+        [Fact]
+        public void TestDynamicInterfaceCastingOnValidInterface()
+        {
+            var agileObject = (IAgileObject)(IWinRTObject)TestObject;
+            Assert.NotNull(agileObject);
         }
 
+        [Fact]
+        public void TestDynamicInterfaceCastingOnInvalidInterface()
+        {
+            Assert.ThrowsAny<System.Exception>(() => (IStringableInterop)(IWinRTObject)TestObject);
+        }
+#endif
+
         [Fact]
         public void TestUri()
         {