add a test that checks excatly the behavior

Signed-off-by: paule96 <[email protected]>

test/Dapr.E2E.Test.Actors/ISerializationActor.cs

@@ -11,7 +11,7 @@ namespace Dapr.E2E.Test.Actors
     public interface ISerializationActor : IActor, IPingActor
     {
         Task<SerializationPayload> SendAsync(string name, SerializationPayload payload, CancellationToken cancellationToken = default);
-        Task<DateTime> AnotherMethod();
+        Task<DateTime> AnotherMethod(DateTime payload);
     }
 
     public record SerializationPayload(string Message)

test/Dapr.E2E.Test.App/Actors/SerializationActor.cs

@@ -24,8 +24,8 @@ public Task<SerializationPayload> SendAsync(string name,
             return Task.FromResult(payload);
         }
 
-        public Task<DateTime> AnotherMethod(){
-            return Task.FromResult(DateTime.UtcNow);
+        public Task<DateTime> AnotherMethod(DateTime payload){
+            return Task.FromResult(payload);
         }
     }
 }

test/Dapr.E2E.Test/Actors/E2ETests.CustomSerializerTests.cs

@@ -84,5 +84,32 @@ public async Task ActorCanSupportCustomSerializer()
                 Assert.Equal(JsonSerializer.Serialize(kvp.Value), JsonSerializer.Serialize(value));
             }
         }
+
+        /// <summary>
+        /// This was actually a problem that is why the test exists.
+        /// It just checks, if the interface of the actor has more than one method defined,
+        /// that if can call it and serialize the payload correctly.
+        /// </summary>
+        /// <remarks>
+        /// More than one methods means here, that in the exact interface must be two methods defined.
+        /// That excludes hirachies. 
+        /// So <see cref="IPingActor.Ping"/> wouldn't count here, because it's not directly defined in 
+        /// <see cref="ISerializationActor"/>. (it's defined in the base of it.)
+        /// That why <see cref="ISerializationActor.AnotherMethod(DateTime)"/> was created,
+        /// so there are now more then one method.
+        /// </remark>
+        [Fact]
+        public async Task ActorCanSupportCustomSerializerAndCallMoreThenOneDefinedMethod()
+        {
+            using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(60));
+            var proxy = this.ProxyFactory.CreateActorProxy<ISerializationActor>(ActorId.CreateRandom(), "SerializationActor");
+
+            await ActorRuntimeChecker.WaitForActorRuntimeAsync(this.AppId, this.Output, proxy, cts.Token);
+
+            var payload = DateTime.MinValue;
+            var result = await proxy.AnotherMethod(payload);
+
+            Assert.Equal(payload, result);
+        }
     }
 }