1 files changed, 59 insertions, 0 deletions
diff --git a/mqtt-tester/src/behaviour/invalid_first_packet_is_rejected.rs b/mqtt-tester/src/behaviour/invalid_first_packet_is_rejected.rs
new file mode 100644
index 0000000..a4c95ad
--- /dev/null
+++ b/mqtt-tester/src/behaviour/invalid_first_packet_is_rejected.rs
@@ -0,0 +1,59 @@
+//
+//   This Source Code Form is subject to the terms of the Mozilla Public
+//   License, v. 2.0. If a copy of the MPL was not distributed with this
+//   file, You can obtain one at http://mozilla.org/MPL/2.0/.
+//
+
+use mqtt_format::v3::{packet::MConnect, strings::MString};
+
+use crate::{
+    behaviour_test::BehaviourTest,
+    command::{Input, Output},
+    executable::ClientExecutableCommand,
+    report::ReportResult,
+};
+
+pub struct InvalidFirstPacketIsRejected;
+
+#[async_trait::async_trait]
+impl BehaviourTest for InvalidFirstPacketIsRejected {
+    fn commands(&self) -> Vec<Box<dyn ClientExecutableCommand>> {
+        vec![]
+    }
+
+    async fn execute(&self, mut input: Input, _output: Output) -> Result<(), miette::Error> {
+        input
+            .send_packet(MConnect {
+                protocol_name: MString { value: "foo" },
+                protocol_level: 0,
+                clean_session: true,
+                will: None,
+                username: None,
+                password: None,
+                keep_alive: 0,
+                client_id: MString { value: "client" },
+            })
+            .await?;
+        Ok(())
+    }
+
+    fn report_name(&self) -> &str {
+        "Check if invalid first packet is rejected"
+    }
+
+    fn report_desc(&self) -> &str {
+        "The first packet from the server must be a ConnAck. Any other packet is invalid and the client should close the connection"
+    }
+
+    fn report_normative(&self) -> &str {
+        "[MQTT-3.2.0-1]"
+    }
+
+    fn translate_client_exit_code(&self, success: bool) -> ReportResult {
+        if success {
+            ReportResult::Failure
+        } else {
+            ReportResult::Success
+        }
+    }
+}