Added tests for correct recipients

Author: Sergio0694

UnitTests/UnitTests.Shared/Mvvm/Test_Messenger.Request.cs

@@ -19,9 +19,12 @@ public void Test_Messenger_RequestMessage_Ok()
         {
             var messenger = new Messenger();
             var recipient = new object();
+            object test = null;
 
             void Receive(object recipient, NumberRequestMessage m)
             {
+                test = recipient;
+
                 Assert.IsFalse(m.HasReceivedResponse);
 
                 m.Reply(42);
@@ -33,6 +36,7 @@ void Receive(object recipient, NumberRequestMessage m)
 
             int result = messenger.Send<NumberRequestMessage>();
 
+            Assert.AreSame(test, recipient);
             Assert.AreEqual(result, 42);
         }
 
@@ -181,11 +185,28 @@ public void Test_Messenger_CollectionRequestMessage_Ok_MultipleReplies()
             object
                 recipient1 = new object(),
                 recipient2 = new object(),
-                recipient3 = new object();
+                recipient3 = new object(),
+                r1 = null,
+                r2 = null,
+                r3 = null;
 
-            void Receive1(object recipient, NumbersCollectionRequestMessage m) => m.Reply(1);
-            void Receive2(object recipient, NumbersCollectionRequestMessage m) => m.Reply(2);
-            void Receive3(object recipient, NumbersCollectionRequestMessage m) => m.Reply(3);
+            void Receive1(object recipient, NumbersCollectionRequestMessage m)
+            {
+                r1 = recipient;
+                m.Reply(1);
+            }
+
+            void Receive2(object recipient, NumbersCollectionRequestMessage m)
+            {
+                r2 = recipient;
+                m.Reply(2);
+            }
+
+            void Receive3(object recipient, NumbersCollectionRequestMessage m)
+            {
+                r3 = recipient;
+                m.Reply(3);
+            }
 
             messenger.Register<NumbersCollectionRequestMessage>(recipient1, Receive1);
             messenger.Register<NumbersCollectionRequestMessage>(recipient2, Receive2);
@@ -198,6 +219,10 @@ public void Test_Messenger_CollectionRequestMessage_Ok_MultipleReplies()
                 responses.Add(response);
             }
 
+            Assert.AreSame(r1, recipient1);
+            Assert.AreSame(r2, recipient2);
+            Assert.AreSame(r3, recipient3);
+
             CollectionAssert.AreEquivalent(responses, new[] { 1, 2, 3 });
         }
 

UnitTests/UnitTests.Shared/Mvvm/Test_Messenger.cs

@@ -115,22 +115,32 @@ public void Test_Messenger_IsRegistered_Register_Send_UnregisterOfTMessage_WithN
 
             Assert.IsFalse(Messenger.Default.IsRegistered<MessageA>(a));
 
+            object recipient = null;
             string result = null;
-            Messenger.Default.Register<MessageA>(a, (r, m) => result = m.Text);
+
+            Messenger.Default.Register<MessageA>(a, (r, m) =>
+            {
+                recipient = r;
+                result = m.Text;
+            });
 
             Assert.IsTrue(Messenger.Default.IsRegistered<MessageA>(a));
 
             Messenger.Default.Send(new MessageA { Text = nameof(MessageA) });
 
+            Assert.AreSame(recipient, a);
             Assert.AreEqual(result, nameof(MessageA));
 
             Messenger.Default.Unregister<MessageA>(a);
 
             Assert.IsFalse(Messenger.Default.IsRegistered<MessageA>(a));
 
+            recipient = null;
             result = null;
+
             Messenger.Default.Send(new MessageA { Text = nameof(MessageA) });
 
+            Assert.IsNull(recipient);
             Assert.IsNull(result);
         }