Moved check on Options.ValidateFeatures below ThrowIf methods to prevent NullReferenceException (#1800)

* Moved check on Options.ValidateFeatures below ThrowIf methods to prevent NullReferenceException * Add Unit Test * Update ReleaseNotes.md --------- Co-authored-by: Christian <6939810+chkr1011@users.noreply.github.com>
2026-10-15 00:15:15 +08:00 · 2023-08-13 18:38:37 +02:00
parent 101898695e
commit b1dc8607af
3 changed files with 26 additions and 3 deletions
@@ -196,5 +196,27 @@ namespace MQTTnet.Tests.Clients.MqttClient
                Assert.AreEqual(response.UserProperties[0].Value, "Value");
            }
        }
+
+        [TestMethod]
+        public async Task Throw_Proper_Exception_When_Not_Connected()
+        {
+            try
+            {
+                var mqttFactory = new MqttFactory();
+                using (var mqttClient = mqttFactory.CreateMqttClient())
+                {
+                    await mqttClient.SubscribeAsync("test", MqttQualityOfServiceLevel.AtLeastOnce);
+                }
+            }
+            catch (MqttCommunicationException exception)
+            {
+                if (exception.Message == "The client is not connected.")
+                {
+                    return;
+                }
+            }
+
+            Assert.Fail();
+        }
    }
 }