Coronys Test Automation Framework

How to Test SNMP SET & GET Operations

Objectives

In this tutorial you'll learn HOW TO:
► Initialize the Coronys SNMP Manager from script
► Send GET and SET requests to your target SNMP agent
► Check SNMP operations status
► Extract data from the response

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How to ...

Add a New Test Step

Right click on any sibling leaf to add a new "SNMP Get And Set" test step on Test Step Tree.
No parameters are required for this test script.

Write a Script

The script performs the following:
► Initialize Coronys SNMP Manager using SnmpInit ESL built-in library function.
Read and write community strings are set hard coded for this example to the same value "RdWr"
Target IP is set to your local computer.
For your real automation you can define external parameters to loop on different targets.
► Check if SNMP initialization succeeded by calling a local sub-routine CheckFatal. It stops the test if SnmpInit failed.
► Perform GET operations for some variables from the System Group MIB.
For our example, we chose textual, OID and TimeTicks varible types.
► Set sysContact to a new value and verify SET operation by a successive GET.
► The sub-routine CheckStatus prints the GET/SET result to a run-time log if a parameter i_Status is zero.
► Fails the test if i_Status contains a SNMP error code.

Copy the script below and paste it to the template created by the ESL Editor.
Click F1 in ESL Editor for Help and API index.
Adjust the code to you needs and run.

Declare Status , Val

     ; Init SNMP Manager
     SnmpInit Status , "RdWr" , "RdWr" , "localhost"
     GoSub "CheckFatal" , Status

     ; Get Operations
     SnmpGet Status , Val , "1.3.6.1.2.1.1.1.0" , "sysDescr"
     GoSub "CheckStatus" , Status , "GET" , "sysDescr" , Val

     SnmpGet Status , Val , "1.3.6.1.2.1.1.2.0" , "sysObjectID"
     GoSub "CheckStatus" , Status , "GET" , "sysDescr" , Val

     SnmpGet Status , Val , "1.3.6.1.2.1.1.3.0" , "sysUpTime"
     GoSub "CheckStatus" , Status , "GET" , "sysDescr" , Val

     SnmpGet Status , Val , "1.3.6.1.2.1.1.4.0" , "sysContact"
     GoSub "CheckStatus" , Status , "GET" , "sysDescr" , Val

     ; Set Operation
    Val = "Sam Smith"
     SnmpSet Status , "1.3.6.1.2.1.1.4.0" , Val , "sysContact" , "String"
     GoSub "CheckStatus" , Status , "SET" , "sysDescr" , Val
     ; Verify SET
     SnmpGet Status , Val , "1.3.6.1.2.1.1.4.0" , "sysContact"
     GoSub "CheckStatus" , Status , "GET" , "New sysDescr" , Val

     End ; Exit Current Test
     ;-------------------------------------------
<CheckStatus> i_Status , i_Op , i_VarName , i_Val
     If i_Status == 0 Then
         TMMessage GT_InfoID , i_VarName $ ": " $ i_Val
         Return ; Back to the caller
     EndIf
     TMMessage GT_ErrorID , "SNMP " $ i_Op $ " failed. Status=" $ i_Status
     Return ; Back to the caller
<CheckFatal> i_Status
     If i_Status == 0 Then Return ; Back to the caller
     TMMessage GT_ErrorID , "SNMP fatal error. Status=" $ i_Status
     End ; Exit Current Test