Handle Get Address Info when Address does not exist

src/ArtemisNetCoreClient/ISession.cs

@@ -5,7 +5,7 @@ namespace ActiveMQ.Artemis.Core.Client;
 public interface ISession : IAsyncDisposable
 {
     Task CreateAddress(string address, IEnumerable<RoutingType> routingTypes, CancellationToken cancellationToken);
-    Task<AddressInfo> GetAddressInfo(string address, CancellationToken cancellationToken);
+    Task<AddressInfo?> GetAddressInfo(string address, CancellationToken cancellationToken);
     Task CreateQueue(QueueConfiguration queueConfiguration, CancellationToken cancellationToken);
     Task<QueueInfo> GetQueueInfo(string queueName, CancellationToken cancellationToken);
 }

src/ArtemisNetCoreClient/Session.cs

@@ -51,20 +51,25 @@ public async Task CreateAddress(string address, IEnumerable<RoutingType> routing
         _ = await SendBlockingAsync<CreateAddressMessage, NullResponse>(createAddressMessage, cancellationToken);
     }
 
-    public async Task<AddressInfo> GetAddressInfo(string address, CancellationToken cancellationToken)
+    public async Task<AddressInfo?> GetAddressInfo(string address, CancellationToken cancellationToken)
     {
         var request = new SessionBindingQueryMessage
         {
             Address = address
         };
         var response = await SendBlockingAsync<SessionBindingQueryMessage, SessionBindingQueryResponseMessageV5>(request, cancellationToken);
-        
-        return new AddressInfo
+
+        if (response.Exists)
         {
-            Name = address,
-            QueueNames = response.QueueNames,
-            RoutingTypes = GetRoutingTypes(response).ToArray(),
-        };
+            return new AddressInfo
+            {
+                Name = address,
+                QueueNames = response.QueueNames,
+                RoutingTypes = GetRoutingTypes(response).ToArray(),
+            };
+        }
+
+        return null;
     }
 
     private static IEnumerable<RoutingType> GetRoutingTypes(SessionBindingQueryResponseMessageV5 sessionBindingQueryResponseMessageV5)

test/ArtemisNetCoreClient.Tests/SessionTests.cs

@@ -45,7 +45,7 @@
 
         // Assert
         var addressInfo = await session.GetAddressInfo(addressName, default);
         Assert.That(addressInfo.Name, Is.EqualTo(addressName));
         CollectionAssert.AreEqual(routingTypes, addressInfo.RoutingTypes);
     }
 
@@ -80,4 +80,25 @@
         Assert.That(queueInfo.AddressName, Is.EqualTo(addressName));
         Assert.That(queueInfo.RoutingType, Is.EqualTo(routingType));
     }
+
+    [Test]
+    public async Task should_not_return_address_info_when_address_does_not_exist()
+    {
+        // Arrange
+        var connectionFactory = new SessionFactory();
+        await using var session = await connectionFactory.CreateAsync(new Endpoint
+        {
+            Host = "localhost",
+            Port = 5445,
+            User = "artemis",
+            Password = "artemis"
+        });
+
+        // Act
+        var addressName = Guid.NewGuid().ToString();
+        var addressInfo = await session.GetAddressInfo(addressName, default);
+
+        // Assert
+        Assert.That(addressInfo, Is.Null);
+    }
 }