fixup! fixup! fixup! implement changes addressed in comments

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

tests/RobotFramework/tests/mqtt/disconnect_from_broker.robot

@@ -4,7 +4,7 @@ Library         ThinEdgeIO
 Library         OperatingSystem
 Library         String
 
-Suite Setup     Custom Setup
+Suite Setup     Setup
 Suite Teardown  Get Logs
 
 Test Tags      theme:mqtt
@@ -25,32 +25,14 @@ Validate no Error message in journalctl
     ${log}    Execute Command    journalctl -u mosquitto -n 30
     Should Not Contain    ${log}    Error
 
-Publish Connection Closed On Interruption
+Publish Connection Closed after publish  
     [Documentation]    Tests that a publish connection to MQTT broker closes upon interruption.
-    Execute Command    tedge mqtt pub ${TOPIC} ${MESSAGE}    ignore_exit_code=True
+    Execute Command    tedge mqtt pub test/topic Hello
     ${MQTT_PUB}    Execute Command    journalctl -u mosquitto -n 30
     Should Contain    ${MQTT_PUB}    Received DISCONNECT from tedge-pub
-    Log    MQTT publish connection was closed upon interruption.
 
 Subscribe Connection Closed On Interruption
     [Documentation]    Tests that a subscribe connection to MQTT broker closes upon interruption.
-    Execute Command    timeout 2 tedge mqtt sub ${TOPIC}    ignore_exit_code=True
+    Execute Command    timeout 2 tedge mqtt sub test/topic    ignore_exit_code=True
     ${MQTT_SUB}    Execute Command    journalctl -u mosquitto -n 30
     Should Contain    ${MQTT_SUB}    Received DISCONNECT from tedge-sub
-    Log    MQTT subscribe connection was closed upon interruption.
-
-
-*** Keywords ***
-
-Custom Setup
-    Setup    
-    tedge configure MQTT server authentication
-    tedge configure MQTT client authentication
-
-tedge configure MQTT server authentication
-    Execute Command    tedge config set mqtt.client.port 8883
-    Execute Command    tedge config set mqtt.client.auth.ca_file /etc/mosquitto/ca_certificates/ca.crt
-
-tedge configure MQTT client authentication
-    Execute Command    tedge config set mqtt.client.auth.cert_file client.crt
-    Execute Command    tedge config set mqtt.client.auth.key_file client.key